Managed XDR

fstock.dll (Tinba) — malware analysis report

File info

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

Environment

win7/x86 en

Hashes

SHA1
7b04248220e1e8bcf8caa71637f6e15cbfaed16b
SHA256
d00aeaea307a0a5a8c57be7f1c9e56cdef95d5d1fe8dad6e6f98baf77c7d3db6
MD5
41486eef86a246198c79ca902b205e86

Malwares

  • Tinba

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
T1055 injection_failed: The attempt to inject into a process has failed

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
T1055 injection_failed: The attempt to inject into a process has failed

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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