a8d5126a1eafba06775bf2eaaf74b52873f15ac8c35a3603517511fcc6e1eaea

Analysis

max time kernel
1203s
max time network
1218s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23-02-2024 20:06

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General

Target

locales/pt-PT.pak
Size

512KB
MD5

4816d83e54beaa2f94c671d56361c04e
SHA1

5cae66c0b7079d778ac87ad48777afd85b172d2f
SHA256

a903ca2a8e52f987e23d040de7403b58d925a6c39668d3bc0822fb2aadd34cb1
SHA512

0d3a39e1205ce9366818cb51d38db035b80448dc1e2d2d6bbd7d5df693641582043b45b4a78bbf2334159616187dc85a51e623bb6878b1498d9bc7acd2a6ffab
SSDEEP

6144:3GMuOo/dHdr0fkdBZfieJVJJxhtHLtvxfVCQ5yKdFSRJi:jMHdofkdKQ5yKPSRU

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-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\pak_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\.pak	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\pak_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_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
2348	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2348	AcroRd32.exe
2348	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1192 wrote to memory of 2412	1192	cmd.exe	30
PID 1192 wrote to memory of 2412	1192	cmd.exe	30
PID 1192 wrote to memory of 2412	1192	cmd.exe	30
PID 2412 wrote to memory of 2348	2412	rundll32.exe	31
PID 2412 wrote to memory of 2348	2412	rundll32.exe	31
PID 2412 wrote to memory of 2348	2412	rundll32.exe	31
PID 2412 wrote to memory of 2348	2412	rundll32.exe	31

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\pt-PT.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:1192
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\pt-PT.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2412
- - 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\pt-PT.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2348

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
979801185ff2dc45b32c6dd726b4f674

SHA1
11ac031e9e9ac71520f4c536f46ebf898c8ac451

SHA256
20bc655add00043c1688c859b6162eeee646e716b82adc9c3149f16a1e818dcd

SHA512
07b19826db334b4dc3223c6e4d962e5165907c367276d0cb69ce1c5328e2dbb1491ebe341162fd88568ad5db229f9804f56ba99c4077db910215c40cc2600fe9

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