Managed XDR

vtdl_1761604240_6rs5d4y6 (CloudEyE) — malware analysis report

File info

Filename
vtdl_1761604240_6rs5d4y6
File type
CDFV2 Microsoft Outlook Message
File size
1 MB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
0ef81074883e71f970889eb2e3ea186690a37e92
SHA256
b3c48a96291612eae09387b5dccddf1fa50f33cd2493d14d1e3b90dd952b33f5
MD5
15b078c09049d856e207928e3f29a56c

Malwares

  • CloudEyE

Signatures

Execution

T1106 susp_callbacks: Suspicious usage of some WinAPI with callbacks

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

T1045 guloader_behaviour2: Cloudeye/GuLoader specific behaviour has been detected
T1497 antidbg_setinformationthread: Attempts to evade debugger using NtSetInformationThread
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1036.001 invalid_authenticode: Digital signature of the executable file has failed the verification
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1027.002 nsis_archive: One of the packages is NSIS archive
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1480 system_default_lang_id_present: Checks the system language
T1574 dropper_dll: Creates DLL, which is then loaded into the process

Discovery

T1497 antidbg_setinformationthread: Attempts to evade debugger using NtSetInformationThread

Other

yara_rules: Static rules
create_process_failed: Could not start the process
unnamed_region_exception_handler: Creates an exception handler in an unnamed region
unexpected_exception: Unexpected exception
no_graphical_activity: No graphic activity
creates_suspended_process: Creates suspended process
creates_exe: Creates executable files in the file system
static_compression_ratio: Very high compression ratio of a file
checktokenmembership: Checks user token with CheckTokenMembership call
writes_data: Writes big amount of data to disk
pe_overlay: PE file contains overlay
static_big_overlay: Executable file contains an enormously big overlay

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