fe9ef92c748a292553f5a2b93fae0154750581642ececf5671ea68013ee51066

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
02-02-2024 16:15

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General

Target

Setup/locales/es-419.pak
Size

366KB
MD5

13c6d0a268545541f325375d431b41ae
SHA1

5f5c41348f00c5e5539d261c2b76ae6e3ec7af83
SHA256

943fa8774ade38d57349a5d27869097a782bc06bd34c40864a85ba829457d127
SHA512

09cbb2b21304ca8afa8b760b738adb5422e83550085f1aed8e8590eeef04a2b0e131e1ead6723c3e85383630c483d7720e55f71305ff4821d7822fe6d7aa4252
SSDEEP

3072:rt+uPUzEx0HrKJBjQMU0dmdv5jrqMCOyu0sdzPh7buhwwJ3Os57lLfGLFg3WSszj:rt+o+I0H6nUxv5rYQQJH5sLFg3WSsTG6

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-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_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-1-5-21-3818056530-936619650-3554021955-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\pak_auto_file\	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2688	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2688	AcroRd32.exe
2688	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2180 wrote to memory of 2680	2180	cmd.exe	29
PID 2180 wrote to memory of 2680	2180	cmd.exe	29
PID 2180 wrote to memory of 2680	2180	cmd.exe	29
PID 2680 wrote to memory of 2688	2680	rundll32.exe	30
PID 2680 wrote to memory of 2688	2680	rundll32.exe	30
PID 2680 wrote to memory of 2688	2680	rundll32.exe	30
PID 2680 wrote to memory of 2688	2680	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Setup\locales\es-419.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2180
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Setup\locales\es-419.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2680
- - 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\Setup\locales\es-419.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2688

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
1d88486aa5d49b7c01d3ad7c2629ff07

SHA1
3f80a3bf788f785931967ad517451d16a7c0e00b

SHA256
1615f4b50fa137a3d1d53856ce4c1290fd56b073d51187725703079ac2d2c1b0

SHA512
c5de6be2227803ca4c62dbed24830ad50daf315731ed0f20d35fa81746857a63528ae1a762d5ca48e983fc06b074e8dfa955808295bae52ee7ffeb753edfcb1b

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