2d75bc310ccdfb81b7367a87d93b4539c1051512c294415ab8cd0e1b8c68792b

Analysis

max time kernel
119s
max time network
126s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
29-08-2024 03:01

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General

Target

resources/app.asar
Size

22.0MB
MD5

61c18ec20dd5ea06f46ed1189df493ec
SHA1

bb66cd88738f51e05650d11129f2b3dc43dfa439
SHA256

d3a297f0cbdcecf78fa46ef5a4d6c594d454d31a7c05c7f3d905ca16aa065d39
SHA512

0ec8955adf9adb71f2a5d4ba47f23d9b5d49d0bca6d2f0d7806a0baf3674b2fa65ad2b4d37f2b44bbee738cda37c01f1e5c5c311e32efcca3f5d5138deaaf7d3
SSDEEP

393216:M1qKprJaBBGUEq0/Y9+pL0U7l4hWa226MAEqyX:MRpVWdEn/uyL0U7l4hWa226MAEqyX

Score

3^/10

discovery

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000_CLASSES\asar_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000_CLASSES\.asar\ = "asar_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000_CLASSES\asar_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000_CLASSES\asar_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000_CLASSES\asar_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000_CLASSES\.asar	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000_CLASSES\asar_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000_CLASSES\asar_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
2716	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2716	AcroRd32.exe
2716	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2372 wrote to memory of 2796	2372	cmd.exe	31
PID 2372 wrote to memory of 2796	2372	cmd.exe	31
PID 2372 wrote to memory of 2796	2372	cmd.exe	31
PID 2796 wrote to memory of 2716	2796	rundll32.exe	33
PID 2796 wrote to memory of 2716	2796	rundll32.exe	33
PID 2796 wrote to memory of 2716	2796	rundll32.exe	33
PID 2796 wrote to memory of 2716	2796	rundll32.exe	33

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\resources\app.asar
1⤵
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\resources\app.asar
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2796
- - 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\resources\app.asar"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2716

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
136a31825e4b99abd1f398ea50261eb8

SHA1
3d93b8fad9b784f9e32eb58a3de1411cd3e37f1d

SHA256
5f1045d8013e404c4d1486ad9484443ddbf2d039491659b54a9e8206e7f82bfd

SHA512
5677202423050d3b9914e8c09c195ad9dfda162a5232412dca9c58655edd0cd41835ee653bce9b1ef2052d4f68d016e93708f8ef3491e6452b65af804d3acaa3

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