Managed XDR

cmigrate.exe (Tinba, Dridex) — malware analysis report

File info

Filename
cmigrate.exe
File type
PE32 executable (console) Intel 80386, for MS Windows
File size
6.2 MB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
6aa5a0e415b35d59628b77197c9c905e53e94739
SHA256
1282c615df5b43f034471016c09836023bfed5cefbd90eb15d4449c72a3870e7
MD5
443d0ddf4b177b5151ea787b3fb2659f

Malwares

  • Tinba
  • Dridex

Signatures

Persistence

T1574 dropper_dll: Creates DLL, which is then loaded into the process

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
T1574 dropper_dll: Creates DLL, which is then loaded into the process

Defense Evasion

T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1480 system_default_lang_id_present: Checks the system language
T1574 dropper_dll: Creates DLL, which is then loaded into the process
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

T1555.004 windows_credential_manager: Acquire credentials from the Windows Credential Manager

Discovery

T1497.001 antivm_disk_size: Checks the amount of free disk space
T1518 locates_browser: Attempts to identify where browsers are installed

Impact

T1486 modifies_files2: Cryptolocker indicators detected (100 or more files are modified)

Other

yara_rules: Static rules
creates_exe: Creates executable files in the file system
executes_dropped_exe: Executes dropped exe files
create_rpc_bindings: Creates RPC connection
has_pdb: This executable file has a PDB path
access_recyclebin: Manipulation with recyclebin detected
get_policy_info: Retrieves information about a Policy object
checktokenmembership: Checks user token with CheckTokenMembership call
writes_data: Writes big amount of data to disk

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