8535bf184614863ee2aaf9ddb3572b0439945d51f25ba80b007f35cd59b79dd6

Analysis

max time kernel
118s
max time network
127s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
02/05/2024, 20:09

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General

Target

content/avatar/compositing/CompositExtraSlot4.mesh
Size

817B
MD5

d2c769943e0baee78b382bea03fdbe69
SHA1

ceb5f888cba6e81f9299c3b6b978a30021ad2149
SHA256

9026301503a6571be4060a3920da649d6a9b1cabfcfc3c0809663eb207d5f3ab
SHA512

fd5548388ef9ae8636d30e00298dcbc3ccd12533dc48923310dfbb30635799ec8a9917b793f46e3c5414ca1174954dea0980dfca9142c411b5f45dea380570e2

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
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\mesh_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.mesh	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\mesh_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\mesh_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\mesh_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\mesh_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.mesh\ = "mesh_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\mesh_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2660	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2660	AcroRd32.exe
2660	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2936 wrote to memory of 2636	2936	cmd.exe	29
PID 2936 wrote to memory of 2636	2936	cmd.exe	29
PID 2936 wrote to memory of 2636	2936	cmd.exe	29
PID 2636 wrote to memory of 2660	2636	rundll32.exe	30
PID 2636 wrote to memory of 2660	2636	rundll32.exe	30
PID 2636 wrote to memory of 2660	2636	rundll32.exe	30
PID 2636 wrote to memory of 2660	2636	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\content\avatar\compositing\CompositExtraSlot4.mesh
1⤵
- Suspicious use of WriteProcessMemory
PID:2936
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\content\avatar\compositing\CompositExtraSlot4.mesh
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2636
- - 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\content\avatar\compositing\CompositExtraSlot4.mesh"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2660

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
05b1150e678e877061858394a515dfaa

SHA1
e478a4228df1e0643c7b6157ad56290ec1beb67f

SHA256
cea3234d989ef9c171cb7e6286a956941eb8e6784d1d33df93e2da7ddf45e786

SHA512
f5bfce4f1c47d308246fa17b55ae751df8899fb6df991bab1223c02471ddaebf219432e31642405daca3a064f9cce48a82a323049c8765cabdeee8af7b2ef68f

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