42ad279878792b976f051847fc40e8b31fb4a043cc440455fca28b8f9a252271

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Analysis

max time kernel
121s
max time network
129s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
03/06/2024, 23:51

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General

Target

locales/am.pak
Size

756KB
MD5

4eaa15771058480f5c574730c6bf4090
SHA1

2b0322aae5a0927935062ea89bd8bd129fa77961
SHA256

b05dcb8136751aee5eced680a5bad935e386bfce657dd283d3ec00ee722fd740
SHA512

b67e7dd24eadc91d4cd920f8864cfb23a9c67b2cecd54ec97e01705636604ce504dc417d6af1c53f374b58eddf71a12bb82248bd8fd68307161d4833342681a9
SSDEEP

12288:sjsuGn8MVs2TZIuHzLzxBT2qE36jpECuzA+5P9LlVrClOwPQVx30jH8+F:HnG2TZVLzxwqEqjpECuzA+5P9LlVrClj

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-1-5-21-268080393-3149932598-1824759070-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_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
2832	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2832	AcroRd32.exe
2832	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2040 wrote to memory of 2820	2040	cmd.exe	29
PID 2040 wrote to memory of 2820	2040	cmd.exe	29
PID 2040 wrote to memory of 2820	2040	cmd.exe	29
PID 2820 wrote to memory of 2832	2820	rundll32.exe	30
PID 2820 wrote to memory of 2832	2820	rundll32.exe	30
PID 2820 wrote to memory of 2832	2820	rundll32.exe	30
PID 2820 wrote to memory of 2832	2820	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\am.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2040
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\am.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2820
- - 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\am.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2832

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
083d5e01e333dddc56133ebee208ce78

SHA1
8090757db2414b5791e8c27147d6129a56993368

SHA256
3b47e60ec21067532ec9df6bee5c8339963d7e2ab622bc8f5f25c2d7aca2bf01

SHA512
3c8ecc3f9f57d27e7cebc2cd17b0c8c6d8246db8bb7e1e6104d41cb6a696ceb9c603fbe4e6661203996fb24026a356988d1dcd570fe3e9454f31fc650d35d977

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