Managed XDR

mfccalc.exe (Emotet, Hupigon, TrickBot) — malware analysis report

File info

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

Environment

win7/x86 en

Hashes

SHA1
5f3a416c51e1ed95df6752952b0275529054310f
SHA256
abd1eaa037e117b9ebd547b28f3db621ddad37691419358efb5840355069207d
MD5
74c1b72e7f53eaff4fce1b04c96ee08d

Malwares

  • Emotet
  • Hupigon
  • TrickBot

Signatures

Execution

T1569.002 persistence_service: Starts newly created service

Persistence

T1543.003 creates_service: Creates a service, that will start automatically

Privilege Escalation

T1543.003 creates_service: Creates a service, that will start automatically
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
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1564.004 removes_zoneid_ads: Attempts to hide the indications that the file was downloaded from the Internet
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1497.001 antivm_queries_computername: Retrieves the computer name
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1027.001 static_overlay_padding: Overlay contents padding
T1027.002 packer_entropy: Probably contains compressed or encrypted data

Credential Access

T1555.003 cookie_files: Accesses cookie files
T1552 cookie_files: Accesses cookie files

Discovery

T1057 process_interest: Enumerates processes
T1497.001 antivm_queries_computername: Retrieves the computer name
T1497.003 antisandbox_sleep: The process attempted to slow down analysis

Command and Control

T1071.001 wininet_https: Performs HTTP/HTTPS requests using WinInet

Other

yara_rules: Static rules
banker_emotet: Emotet banking trojan indicators detected
static_versioninfo_anomaly: Unusual information about the version
creates_in_windows: Creates files in the Windows directory
dead_host: Connects to IP addresses that do not respond to requests
mimics_agent: Uses system User-Agent for requests
no_graphical_activity: No graphic activity
create_rpc_bindings: Creates RPC connection
get_policy_info: Retrieves information about a Policy object
creates_in_programdata: Creates files in the ProgramData directory
test_check_service: Starts services
checktokenmembership: Checks user token with CheckTokenMembership call
pe_overlay: PE file contains overlay

Related reports

Managed XDR