52a46e8d079ea9ed900f3784ded4406c3819e6e479ad7d5cac10073bb0fece31

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
21/04/2024, 06:16

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General

Target

I18n/zh_CN/strings.mo
Size

25KB
MD5

2fba4b79937ba3c9e94e3955059798a0
SHA1

91e513ff8c9ecd6d1bfdab7659a549015b64a0c4
SHA256

2bc340a210f642737833bf22c67db1c55d86949758354111db055e0a7ca8ab18
SHA512

5e905ae5f1384d7f1d48b5789ededc5f9d219388b5b50a0d47cf34afee489fd817990de08f81fc67ddee3fe72b00170d2b92c3affd525420e7d4a77b6b97c89b
SSDEEP

768:bJtjDOl0j0Foxuh6e3308cwEIyrYdde2zVD1th4fjGkC:rae3uh6e337xKji

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-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\mo_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\mo_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\mo_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\.mo	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\.mo\ = "mo_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\mo_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\mo_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\mo_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2452	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2452	AcroRd32.exe
2452	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2864 wrote to memory of 2652	2864	cmd.exe	29
PID 2864 wrote to memory of 2652	2864	cmd.exe	29
PID 2864 wrote to memory of 2652	2864	cmd.exe	29
PID 2652 wrote to memory of 2452	2652	rundll32.exe	30
PID 2652 wrote to memory of 2452	2652	rundll32.exe	30
PID 2652 wrote to memory of 2452	2652	rundll32.exe	30
PID 2652 wrote to memory of 2452	2652	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\I18n\zh_CN\strings.mo
1⤵
- Suspicious use of WriteProcessMemory
PID:2864
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\I18n\zh_CN\strings.mo
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2652
- - 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\zh_CN\strings.mo"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2452

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

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Downloads

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

Filesize
3KB

MD5
859e4d73a0a1212654e77a84f3d6016b

SHA1
cecb64d48f1c03b49239e219217990daa8764d77

SHA256
a5b1d9dd0308910bb95e8d171394887a79e26eb801f134779529de8128d1ce17

SHA512
cd1cb97d164fae677b1d510f01a854e4157928abf09a33d71c576ca4f30b2b0eb2dabe27c197659fa8b889d817c05003b1d3b60ee36f8c6fe1393058bf05659f

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