27bbcb52a75f5a25b957f1c51c9b8d82adc860b3780f96f61c2485c67d64ab1e

Analysis

max time kernel
117s
max time network
127s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
12/05/2024, 08:24

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General

Target
locales/ru.pak
Size 634KB
Sample240512-kar57sbd74
SHA256 bd981aa65536b544228ed1d60a552ff4c7800b46f815177b33b3e628b97d77e4
MD5 aa75c21bfe54bb70e7abd9fce1347a8f
SHA1 3492307cec15b367274c948beb76598f72347846
SHA512 0e77f1c7e4b5410e9eaed875f5dae6485d8de5b650ec44133b1634645cc3055fa7bea316e843b491f29d9c137b20623b120e014b1c74bbf4e8d1f08dbeaf5bb2
SSDEEP 12288:6SjxY5eXN2hHO3j/jHXzvMBJl5kFDe8P/X1f0awGLdUwC0WzWCfG1UMZ22bqGYhp:6SRsC5g6oB
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.pak	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pak_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2580	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2580	AcroRd32.exe
2580	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1464 wrote to memory of 2976	1464	cmd.exe	29
PID 1464 wrote to memory of 2976	1464	cmd.exe	29
PID 1464 wrote to memory of 2976	1464	cmd.exe	29
PID 2976 wrote to memory of 2580	2976	rundll32.exe	30
PID 2976 wrote to memory of 2580	2976	rundll32.exe	30
PID 2976 wrote to memory of 2580	2976	rundll32.exe	30
PID 2976 wrote to memory of 2580	2976	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\ru.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:1464
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\ru.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2976
- - C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
    "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\locales\ru.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2580

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

SharedDataEvents

Path C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Size 3KB
SHA256 b443d0313a74e1cf6eb471669756ccc945ee5b5f9a07ab680d50fa500d283a36
MD5 fed4d0f492b4a3c206b064c633987964
SHA1 3aa93942597e674470a52824ae2d3b896eeb280f
SHA512 b7c47c503d9ec59949b4479100640ca2fa8e940376f060f0bcc1b4ccea9f871060b410c846ce84a3d7228365aeef717e4daf9d82ed4e1c81387c63edb085259f
MD5 SHA1 SHA512

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