c2e26ecea5f1261a2d81205271e534d54b7c445e8e6badefe11c12dae4d63baf

Analysis

max time kernel
255s
max time network
321s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
03/01/2024, 19:37

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General

Target

locales\es.pak
Size

367KB
MD5

96bdc30c826aca4fc7e5e6adfd889b75
SHA1

aa71721b78ab54a99b97b580c4f6d1610b198df7
SHA256

cc423403f5bab00309993241125577d5e64a1a4130a44979b4c8d3e07428953b
SHA512

30e3df376fe06d60388afc13a421ab335a75bf05651f2ce83c8eb80653f29180bb89154149136e3c5009de62bb62ba451a4aaff65f1de9cddb6fe3dec8e90706
SSDEEP

6144:SCcds7km2U/qCngfr56ZUb5R7K5zrT7zUl56AN6PZmz:TkckmyLr0+FRW5zrol5Fnz

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-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_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-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\.pak	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1600	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1600	AcroRd32.exe
1600	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2848 wrote to memory of 848	2848	cmd.exe	28
PID 2848 wrote to memory of 848	2848	cmd.exe	28
PID 2848 wrote to memory of 848	2848	cmd.exe	28
PID 848 wrote to memory of 1600	848	rundll32.exe	29
PID 848 wrote to memory of 1600	848	rundll32.exe	29
PID 848 wrote to memory of 1600	848	rundll32.exe	29
PID 848 wrote to memory of 1600	848	rundll32.exe	29

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\es.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2848
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\es.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:848
- - 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\es.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:1600

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
12d9ee93188deff5c7268ce22fa141b0

SHA1
410c7d695a2575cfade2cd8c1e592ea8b4eb520e

SHA256
52bcc41abd1471005a171ac48b09073bce52a9946b2fb2bc294487919c2fd0d4

SHA512
bdee0c79b74ab5ab2284d15758c078780de478c84b63ab3c69308feba94a008083873bc9c54d8d616537e38cb27925eb98a17a28d1b075c86ff0009d3d46c6ae

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