ca51087dc3ad3bb082387bbbe09d605414c2c4cdef62baf35deebc6ceeba2e92

Analysis

max time kernel
150s
max time network
48s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
01/12/2022, 07:58

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General

Target

pgqbjmjdvntg/hdcwqqbad.class
Size

1KB
MD5

c3f755356dd60c4078edc35b3487cd0f
SHA1

9426a84f11a3a86a9c010f4f9b8080f7d64a2278
SHA256

c739f18060666f585f1ebf23ebc5825f7d0816f91ec7a6cdc81f535e46389115
SHA512

81b5b887f54bc99d4d0ba03afab0c41a009c5f1ffd6347482633ae5c3752bc82fb9904250dbc0bd741aaa2570793a4fd96c61d2586b8fd1a3db95a37305b5c26

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 10 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\class_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\class_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\.class\ = "class_auto_file"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\class_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\.class	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\class_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\class_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\class_auto_file	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1532	AcroRd32.exe
1532	AcroRd32.exe
1532	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1228 wrote to memory of 524	1228	cmd.exe	28
PID 1228 wrote to memory of 524	1228	cmd.exe	28
PID 1228 wrote to memory of 524	1228	cmd.exe	28
PID 524 wrote to memory of 1532	524	rundll32.exe	29
PID 524 wrote to memory of 1532	524	rundll32.exe	29
PID 524 wrote to memory of 1532	524	rundll32.exe	29
PID 524 wrote to memory of 1532	524	rundll32.exe	29

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\pgqbjmjdvntg\hdcwqqbad.class
1⤵
- Suspicious use of WriteProcessMemory
PID:1228
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\pgqbjmjdvntg\hdcwqqbad.class
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:524
- - 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\pgqbjmjdvntg\hdcwqqbad.class"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:1532

Network

MITRE ATT&CK Enterprise v6

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

memory/1228-54-0x000007FEFB631000-0x000007FEFB633000-memory.dmp

Filesize
8KB

Download
memory/1532-82-0x0000000075A11000-0x0000000075A13000-memory.dmp

Filesize
8KB

Download