Managed XDR

vcredist_x86.exe (Tinba, Dridex) — malware analysis report

File info

Filename
vcredist_x86.exe
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
1.9 MB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
e71bb2a098987e1da5f602746922041c15c86e2e
SHA256
41dfa4a8e01d6a80e100d5904ed2f956ab5443c281d5ea8657f98c0f8b3dd2a3
MD5
aff646fbaeb1a900b06383b33369a822

Malwares

  • Tinba
  • Dridex

Signatures

Persistence

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

Privilege Escalation

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

T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1497.001 antisandbox_productid: Obtains Windows ProductID, probably to fingerprint a sandbox
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1574 dropper_dll: Creates DLL, which is then loaded into the process
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Discovery

T1497.001 antisandbox_productid: Obtains Windows ProductID, probably to fingerprint a sandbox
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
require_administrator: Requests administrator privileges
has_pdb: This executable file has a PDB path
access_recyclebin: Manipulation with recyclebin detected
get_policy_info: Retrieves information about a Policy object
writes_data: Writes big amount of data to disk

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