8535bf184614863ee2aaf9ddb3572b0439945d51f25ba80b007f35cd59b79dd6

Analysis

max time kernel
121s
max time network
130s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
02/05/2024, 20:09

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General

Target

content/avatar/compositing/CompositExtraSlot0.mesh
Size

817B
MD5

7eff866016dcdbb1b62328a8c420d7e2
SHA1

80ca518891ba4f8e2b500817ecd6f8ace831ea81
SHA256

d49a6c4733b1f95242958d0df6489c5eea5872a0c7e181c54c93d74324439d51
SHA512

7632b40585c780bcf478f10782443755891c988d93b73b1c604948f1fa41bb0854c7f7f56089e5f81d9b2f62aff3d58e731ed89b4e543b8b0c1b38a372a3c13c

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-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\mesh_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\mesh_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\mesh_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.mesh	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.mesh\ = "mesh_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\mesh_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\mesh_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\mesh_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2436	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2436	AcroRd32.exe
2436	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1516 wrote to memory of 2592	1516	cmd.exe	29
PID 1516 wrote to memory of 2592	1516	cmd.exe	29
PID 1516 wrote to memory of 2592	1516	cmd.exe	29
PID 2592 wrote to memory of 2436	2592	rundll32.exe	30
PID 2592 wrote to memory of 2436	2592	rundll32.exe	30
PID 2592 wrote to memory of 2436	2592	rundll32.exe	30
PID 2592 wrote to memory of 2436	2592	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\content\avatar\compositing\CompositExtraSlot0.mesh
1⤵
- Suspicious use of WriteProcessMemory
PID:1516
- 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\CompositExtraSlot0.mesh
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2592
- - 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\CompositExtraSlot0.mesh"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2436

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
7289d93ee48d34a349566f054849843d

SHA1
2891b386aa9603d5bdaa52364d21a020be301417

SHA256
2b678c763217e6c9e27b8876b0ef870aa475ae9308898d42c43a3b6ecf7a04dc

SHA512
86bcc219437eb0fc538234ce9b95580d21ee3ce4990e5b08c8e56b86847d24a65dbc72f047db35d8460a0430261209eff84711c16028045a13d83cb8cacaa9a6

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