Managed XDR

dcratbuild.exe (DCRat) — malware analysis report

File info

Filename
dcratbuild.exe
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
624.7 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
04ca1ec4c5caf11463b3e7006c395c8131dcd58a
SHA256
cb187dbf7719d191c5db160d049f02ab193a1f22fa0d8c0a48217332043fbe21
MD5
67e040e3f94d39d2d1d8257f66640ef4

Malwares

  • DCRat

Signatures

Execution

T1059.005 obfuscated_vbe: Detected obfuscated VBE script
T1047 has_wmi: Executes one or several WMI requests
T1059.003 suspicious_process: Spawns a suspicious process
T1059.003 executes_dropped_cmd: Executes dropped batch files
T1059.005 obfuscated_vbs: Detected obfuscated VBS

Privilege Escalation

T1134 sets_privilegies_via_adjusttokenprivileges: Sets process privilege via AdjustTokenPrivileges
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Defense Evasion

T1027 obfuscated_vbe: Detected obfuscated VBE script
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1027 obfuscated_vbs: Detected obfuscated VBS
T1497.001 antivm_network_adapters: Checks NIC addresses
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1497.001 antivm_queries_computername: Retrieves the computer name
T1134 sets_privilegies_via_adjusttokenprivileges: Sets process privilege via AdjustTokenPrivileges
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Credential Access

T1552.002 infostealer_steam: Attempts to collect information about Steam account

Discovery

T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1497.001 antivm_network_adapters: Checks NIC addresses
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1497.001 antivm_queries_computername: Retrieves the computer name

Command and Control

T1071.001 network_http: Performs HTTP requests

Other

yara_rules: Static rules
suricata_alert: Malicious traffic detected
creates_exe: Creates executable files in the file system
executes_dropped_exe: Executes dropped exe files
no_graphical_activity: No graphic activity
create_rpc_bindings: Creates RPC connection
has_pdb: This executable file has a PDB path
creates_suspended_process: Creates suspended process
get_policy_info: Retrieves information about a Policy object
test_check_service: Starts services
checktokenmembership: Checks user token with CheckTokenMembership call
pe_overlay: PE file contains overlay

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