52a46e8d079ea9ed900f3784ded4406c3819e6e479ad7d5cac10073bb0fece31

Analysis

max time kernel
122s
max time network
126s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
21-04-2024 06:16

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General

Target

I18n/en_US/strings.mo
Size

25KB
MD5

e890dd263280505ee33da339dddb8e1a
SHA1

b6bfe75203f2a74e56d1b7f6092a2a33883579d2
SHA256

c396714dda1f232ae54d722df77ba98736133b557d33369ab039109bebdfad47
SHA512

50d43d44d1d252ca5ebc29f2b6ae55f0f297f6f28ac1d67ed96ba498293f00517b1a814ec28e7277ab5d8c8b4ffc3132cd83dd34464993bb0d09985f4f1e96a6
SSDEEP

768:bJtj0Y3G0Foxuh6e3308csFoxuhae3308cVHE:V3G3uh6e337Kuhae337SHE

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-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\mo_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\mo_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.mo	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.mo\ = "mo_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\mo_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\mo_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\mo_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\mo_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
2588	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2588	AcroRd32.exe
2588	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2176 wrote to memory of 2536	2176	cmd.exe	29
PID 2176 wrote to memory of 2536	2176	cmd.exe	29
PID 2176 wrote to memory of 2536	2176	cmd.exe	29
PID 2536 wrote to memory of 2588	2536	rundll32.exe	30
PID 2536 wrote to memory of 2588	2536	rundll32.exe	30
PID 2536 wrote to memory of 2588	2536	rundll32.exe	30
PID 2536 wrote to memory of 2588	2536	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\I18n\en_US\strings.mo
1⤵
- Suspicious use of WriteProcessMemory
PID:2176
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\I18n\en_US\strings.mo
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2536
- - 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\I18n\en_US\strings.mo"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2588

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
353337a8e1e1b8b1556598f1632768e2

SHA1
3f9fc375d6704f25558b20604cf4494493d47b1d

SHA256
70a499e4dc5d1a512eec18ff6f6d27d98f6602c5518eb3a7b9f45cb0ee42ed3e

SHA512
4c8e98d04674fe7efa27a65b585f381ba5922bb61d5ec539426f0346233e122aa07e57ce5da05aaeb3f84c84489af1470475293eb771b12a3c57f3a4a677e78e

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