fe9ef92c748a292553f5a2b93fae0154750581642ececf5671ea68013ee51066

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
02/02/2024, 16:15

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General

Target

Setup/locales/ca.pak
Size

371KB
MD5

de21c7d001b771d4d59e2acfdd67dd44
SHA1

ef5870e9cf34416edbec6aa76a6feb77b70b9acf
SHA256

78bbee9bf6c95d239418037fd4660d081ebc0f369e727e613b6b652e380e6dd0
SHA512

3276a84a4b4d90b47789a7ce6a3ae34afec187145a438fbdb7f398152b182e97ba10acda4941456ea2387c03c101bc2b1716a8950897ea3be180b3d8c073902e
SSDEEP

6144:moaCg6EDiYqdSIs3cehEYBC2l3nbh9aGHQl2SwAGwXZM0dLbpuQRBtryBocaGIlI:Hg6EO9dSIs3cehEYBC2l3nbh9aGHQl2t

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
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\pak_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\.pak	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2688	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2688	AcroRd32.exe
2688	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1840 wrote to memory of 2736	1840	cmd.exe	29
PID 1840 wrote to memory of 2736	1840	cmd.exe	29
PID 1840 wrote to memory of 2736	1840	cmd.exe	29
PID 2736 wrote to memory of 2688	2736	rundll32.exe	30
PID 2736 wrote to memory of 2688	2736	rundll32.exe	30
PID 2736 wrote to memory of 2688	2736	rundll32.exe	30
PID 2736 wrote to memory of 2688	2736	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Setup\locales\ca.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:1840
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Setup\locales\ca.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2736
- - 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\Setup\locales\ca.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2688

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

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
26079d963eca745d3714b0b73c2c214e

SHA1
a3e11e53eea2aeed65f374c7bbba033e5368e91f

SHA256
321691b5e62861d8649286de18a22fa7422b4d374270f962315a4a523b0c55cd

SHA512
a5b35585a8da80ef067073cc56a72fe3cdb33aca1f249b5c6408b7b5265a09bbb37f0c60247c2eea7d38d0fe6e9b1e02bd155126f1310bdb76c42fbdcb2ba34d

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