922efe7b4d690b09a100538e8031ef77597059488f8693c46f02e79de036f5bb

Analysis

max time kernel
840s
max time network
846s
platform
windows7_x64
resource
win7-20240221-de
resource tags

arch:x64arch:x86image:win7-20240221-delocale:de-deos:windows7-x64systemwindows
submitted
16/04/2024, 20:12

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General

Target

Acc Generator V3/Acc Generator V3.pdb
Size

7.9MB
MD5

5cbc73d0f33ed7ae7c5c343f38a51878
SHA1

f0ccbc14720d9f440364bf70bd2850cf97d2485c
SHA256

7f7e08ddb501da24713f589e02a21479e088f41611c666e0f432ff1160ac5822
SHA512

a1254ef5df619197820e766da9dc63326a3edc3f8c486fa9c3c32e3749fb9c66e00341cb6d5b0bf8390139b9d05a82bda566505822e09b1f41d12680926b24d7
SSDEEP

98304:x4+LSnRUbtojIn6XOMImQ76FmKDEtLZE4CB1yCb2wBmIwo4N2pks9KPZaeLHGQrd:Vn6ksAjrgrkX

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-1-5-21-330940541-141609230-1670313778-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pdb_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pdb_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pdb_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.pdb	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.pdb\ = "pdb_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pdb_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pdb_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pdb_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
2764	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2764	AcroRd32.exe
2764	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2300 wrote to memory of 1092	2300	cmd.exe	29
PID 2300 wrote to memory of 1092	2300	cmd.exe	29
PID 2300 wrote to memory of 1092	2300	cmd.exe	29
PID 1092 wrote to memory of 2764	1092	rundll32.exe	30
PID 1092 wrote to memory of 2764	1092	rundll32.exe	30
PID 1092 wrote to memory of 2764	1092	rundll32.exe	30
PID 1092 wrote to memory of 2764	1092	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\Acc Generator V3\Acc Generator V3.pdb"
1⤵
- Suspicious use of WriteProcessMemory
PID:2300
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Acc Generator V3\Acc Generator V3.pdb
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1092
- - 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\Acc Generator V3\Acc Generator V3.pdb"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2764

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
235459880765ca13fc78f00243698721

SHA1
d65229a8b40b637f576f06430f648354e601e92a

SHA256
c3c5a025b8b9233faf43a7a0966665064b7d0db2fd63e44cda25a7fad792359c

SHA512
37793039d6819b1fe95cc7d2241ca57db25cbaa52eda40b36745d89b5ed14c39388fca64e5bff6e2959244d8b6e39aff78041f69f1da5e1f67db5e90d2b9d92b

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