4d8daf45a5fcf7480739974e1d9ecac7370462f66196dd14b9a38020120dc202

Resubmissions

02-06-2024 23:20

240602-3bvxlaag6v 7

02-06-2024 23:16

240602-29dwasbg87 4

Analysis

max time kernel
121s
max time network
127s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
02-06-2024 23:16

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General

Target

locales/bg.pak
Size

706KB
MD5

5f629042a1c501b290eec5ea3fcc6779
SHA1

d6b304838630bbbb375c21a0e6de3e1ea600ead8
SHA256

571e87f9c62cfea2a2303674f93ba879d9b899afce4dd7e47ddf5e6781b7d4a6
SHA512

e30f92453bed2dd0cdd5a2a2f70d1e240e983b0a65f056a9623295ed01e9a87869706fc4acb40cb79ffe7c60f5121a95893662c1d0299c0a585b8ab75888c14b
SSDEEP

12288:ADqWwQkDdLlYMdAs1aQUtjtaVVnFH2mFxadnra35rKN3yoSiVD1BbCeSKn/xJfuk:ADq/DBlYMdAs1aQUVGCa35rKsoSiVDDv

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-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pak_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pak_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2704	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2704	AcroRd32.exe
2704	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2476 wrote to memory of 2672	2476	cmd.exe	29
PID 2476 wrote to memory of 2672	2476	cmd.exe	29
PID 2476 wrote to memory of 2672	2476	cmd.exe	29
PID 2672 wrote to memory of 2704	2672	rundll32.exe	30
PID 2672 wrote to memory of 2704	2672	rundll32.exe	30
PID 2672 wrote to memory of 2704	2672	rundll32.exe	30
PID 2672 wrote to memory of 2704	2672	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\bg.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2476
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\bg.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2672
- - 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\bg.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2704

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
4f70f3f83d34726095c590f3a39be168

SHA1
9f60c03b4d4cb31c1cdc45c65b659455c208a8d5

SHA256
12d6ae17feb3aa8e3ac9370bfd4b4474daad41f182bdc9c2f31d6d662b3676d6

SHA512
375f0db551e42eec23abd4b9537e493512f4dd6579e4cba7f6419e783beda4f0efcd84224b23ee9a85200b5e3149b13e5f843d974aeb44e30784e22af055a7cc

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