Managed XDR

server.exe (Blackhole) — malware analysis report

File info

Filename
server.exe
File type
MS-DOS executable
File size
307 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
03086d5b5985d748218877f0db4a898368edab11
SHA256
9b835afc483d8d358b7962bf1dacf7a97c0837543a5cfe848e9f11b3c484e3ca
MD5
f8955a7df96cbf9a52450f18dc7aa11d

Malwares

  • Blackhole

Signatures

Execution

T1059.003 executes_dropped_cmd: Executes dropped batch files

Persistence

T1547 persistence_autorun: Makes itself run automatically on Windows startup
T1547.001 persistence_autorun: Makes itself run automatically on Windows startup

Privilege Escalation

T1547 persistence_autorun: Makes itself run automatically on Windows startup
T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
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

T1070.004 deletes_self: Moves to different location or removes the original executable file
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1036 system_filename: Created a file named as a common system file
T1036 system_procname: Created a process named as a common system process
T1027.002 pe_features: Executable file has PE anomalies (may be false positive)
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
T1070 stealth_window: A process created a hidden window

Credential Access

T1056.001 infostealer_keylogger: Keylogger (intercepts keystrokes)

Discovery

T1497.003 antisandbox_sleep: The process attempted to slow down analysis

Collection

T1056.001 infostealer_keylogger: Keylogger (intercepts keystrokes)

Other

yara_rules: Static rules
networkdyndns_checkip: Connects to a Dynamic DNS domain
creates_exe: Creates executable files in the file system
executes_dropped_exe: Executes dropped exe files
static_pe_anomaly: The PE file structure contains anomalies
rat_blackhole: BlackHole/SchwarzeSonne indicators detected
dns_without_resolve: DNS query without a response
suspicious_process: Spawns a suspicious process
static_pe_duplicate_sections: The PE file structure contains anomalies: duplicate section names
no_graphical_activity: No graphic activity
get_policy_info: Retrieves information about a Policy object

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