71119726fd5e8837b95ea389e2c4e9b478e3350d589adfd07ddd8588911f7914

Analysis

max time kernel
151s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
29-11-2022 07:57

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General

Target

71119726fd5e8837b95ea389e2c4e9b478e3350d589adfd07ddd8588911f7914.dll
Size

43KB
MD5

5c49b80d64f5f67ff5fa778949f0ec12
SHA1

063e95e85942c1034c8ba23af5cc801ec604b8da
SHA256

71119726fd5e8837b95ea389e2c4e9b478e3350d589adfd07ddd8588911f7914
SHA512

9ad6a05efd98a26720779e380a850090b2b49b3dfaa47ee28cfdebee90ffa48e349addbad9e1ae780d0d722d1be6564da7922d62fe22e58b8d333d5ad6cdbb16
SSDEEP

768:8nE0OhJ2V/xLCHbXLFDbvQVmLpqSQVmLpq:4NOyVhw79bfL

Score

8^/10

persistence

Malware Config

Signatures

Blocklisted process makes network request 1 IoCs

flow	pid	Process
5	2356	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
2356	rundll32.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\system = "C:\\Windows\\system32\\system.exe"	rundll32.exe

Enumerates connected drives 3 TTPs 1 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\D:	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2356	rundll32.exe
2356	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3364 wrote to memory of 2356	3364	rundll32.exe	80
PID 3364 wrote to memory of 2356	3364	rundll32.exe	80
PID 3364 wrote to memory of 2356	3364	rundll32.exe	80

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\71119726fd5e8837b95ea389e2c4e9b478e3350d589adfd07ddd8588911f7914.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3364
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\71119726fd5e8837b95ea389e2c4e9b478e3350d589adfd07ddd8588911f7914.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Loads dropped DLL
  - Adds Run key to start application
  - Enumerates connected drives
  - Suspicious behavior: EnumeratesProcesses
  PID:2356

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\82E1.tmp

Filesize
4.3MB

MD5
6c7cdd25c2cb0073306eb22aebfc663f

SHA1
a1eba8ab49272b9852fe6a543677e8af36271248

SHA256
58280e3572333f97a7cf9f33e8d31dc26a98b6535965ebd0bde82249fc9bf705

SHA512
17344e07b9e9b2cd6ae4237d7f310732462f9cbb8656883607d7a1a4090e869265f92a6da1718dee50b1375b91583de60c6bd9e7e8db6b6e45e33f4b894365d6

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memory/2356-132-0x0000000000000000-mapping.dmp

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