fe9ef92c748a292553f5a2b93fae0154750581642ececf5671ea68013ee51066

Analysis

max time kernel
118s
max time network
122s
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/gu.pak
Size

755KB
MD5

7b476c423ce29e61b0b21d7b6a2a56b2
SHA1

5558dcec5b2580345b0797f1f2ea41952417335a
SHA256

047da4dfadcfc6bec8f4dc7d250b1757caf31a23bcfa2ea3e1f3b1cdbe9a3995
SHA512

a494ab32e45cf74e2b7e0424b4e3740470c5c6cfac8f6cc980a681eb8c21cab76255391b6884134593dc7b1029ffd861f74b47130533232881c137c41ef92cac
SSDEEP

3072:/h/zHr2DzDNmtZITYKMaWZu/lsMhmkTd4MUz2sQm251jvHsWnIIRfAHw/g/I/B6i:/ZDizBm/Voaz5cYh+Gyj

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-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_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
1084	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1084	AcroRd32.exe
1084	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1320 wrote to memory of 3056	1320	cmd.exe	29
PID 1320 wrote to memory of 3056	1320	cmd.exe	29
PID 1320 wrote to memory of 3056	1320	cmd.exe	29
PID 3056 wrote to memory of 1084	3056	rundll32.exe	30
PID 3056 wrote to memory of 1084	3056	rundll32.exe	30
PID 3056 wrote to memory of 1084	3056	rundll32.exe	30
PID 3056 wrote to memory of 1084	3056	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Setup\locales\gu.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:1320
- 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\gu.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:3056
- - 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\gu.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:1084

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
1bc7264eae343df6e051285eb0e6a954

SHA1
0b2aa9031d11f88384143d9aa84ba100c28562fd

SHA256
71771b611ff0d6fd6e5be4aa696057f3d1d52ee96fd4ffbce477d8bca2d2b142

SHA512
91a25b7565d488be3757874681553e888dacaeabb6364a3c2c0025b8cc5bff251cc624b66875ddabe4162c4e6a4e6064a57a48401836f01110936681a55744f5

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