Managed XDR

msorun.dll (Tinba, Dridex) — malware analysis report

File info

Filename
msorun.dll
File type
PE32 executable (DLL) (GUI) Intel 80386, for MS Windows
File size
706.5 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
a5e14b16a23fb23de9157a0a5e8921c25dea91fa
SHA256
7e327b89d1557624787c087117413327a62e9eeb1c9ede9f29394071512f46b7
MD5
f932fb0d6fe16db8678926a12f5a0832

Malwares

  • Tinba
  • Dridex

Signatures

Privilege Escalation

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 antivm_disk_size: Checks the amount of free disk space
T1027.002 packer_entropy: Probably contains compressed or encrypted data
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 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
no_graphical_activity: No graphic activity
has_pdb: This executable file has a PDB path
access_recyclebin: Manipulation with recyclebin detected
writes_data: Writes big amount of data to disk

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