bc74276304b95e57d74a219e1cddf35f8fd8abec6500f4b087e769f43e37bd2a

Analysis

max time kernel
117s
max time network
124s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
04-07-2024 11:37

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General

Target

locales/bg.pak
Size

685KB
MD5

945de8a62865092b8100e93ea3e9828d
SHA1

18d4c83510455ce12a6ac85f9f33af46b0557e2e
SHA256

f0e39893a39ce6133c1b993f1792207830b8670a6eb3185b7e5826d50fea7ba2
SHA512

5f61160ff64b9490a1ad5517d8c1bb81af77d349541fed5045e7f6e5053b7d79b7e8f114630bfbe4d5af30258f70a6569462bfa39ccb765f8ca191f82ee04f3f
SSDEEP

12288:wQpKqVw2iILlY+dAs1aQUfjoaVV4FH2mFx0x35uKN3CuKb7szmV2Jfu64K+z5jSF:5pKqJi6lY+dAs1aQU7yCx35uK4XQzQIp

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-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_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-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\.pak	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\pak_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2648	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2648	AcroRd32.exe
2648	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2416 wrote to memory of 2724	2416	cmd.exe	29
PID 2416 wrote to memory of 2724	2416	cmd.exe	29
PID 2416 wrote to memory of 2724	2416	cmd.exe	29
PID 2724 wrote to memory of 2648	2724	rundll32.exe	30
PID 2724 wrote to memory of 2648	2724	rundll32.exe	30
PID 2724 wrote to memory of 2648	2724	rundll32.exe	30
PID 2724 wrote to memory of 2648	2724	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:2416
- 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:2724
- - 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:2648

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

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Downloads

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

Filesize
3KB

MD5
ed58622abb097ff278c16c0ef4b4c771

SHA1
cecb125b463f9bab29b400f418fc15f211fd4dce

SHA256
87f6b9b70061491912571b105103c617d6cb5e5d887271f711a0e34bdf6bfdfd

SHA512
7411e9a5d096bece9e3041b1e77d66cda2e69161e67b5414d5a925acac79e47148c6d9aa26c4b025f2f1aca76b84efc61a1f0cac83bdd6f9e6ec06afb24c8a3d

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