835b421866056272b99e15e2f49f70c4977a64a14422402be11b53563cfbdf57

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
10/03/2025, 02:32

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General

Target

835b421866056272b99e15e2f49f70c4977a64a14422402be11b53563cfbdf57.dll
Size

137KB
MD5

615e78ad60aed20a9dc2aafa072ebfa0
SHA1

c48ea5980fdf5b4e3db4cb2754ef14294d43b2a3
SHA256

835b421866056272b99e15e2f49f70c4977a64a14422402be11b53563cfbdf57
SHA512

e6bdf968a2cf2599c6be9c978873dd0bf6d1a8a944a3ec1c16b8e10eb37d8a443f199ee6cbf335dc76be3ed6e4e856fb28d64a5588c2e749e9995b4691939dd4
SSDEEP

3072:NR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuu:A25GgFny61mra0

Score

4^/10

discovery

Malware Config

Signatures

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\AppPatch\ComBack.Dll	rundll32.exe
File opened for modification	C:\Windows\AppPatch\ComBack.Dll	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2488	2800	WerFault.exe	30

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2832 wrote to memory of 2800	2832	rundll32.exe	30
PID 2832 wrote to memory of 2800	2832	rundll32.exe	30
PID 2832 wrote to memory of 2800	2832	rundll32.exe	30
PID 2832 wrote to memory of 2800	2832	rundll32.exe	30
PID 2832 wrote to memory of 2800	2832	rundll32.exe	30
PID 2832 wrote to memory of 2800	2832	rundll32.exe	30
PID 2832 wrote to memory of 2800	2832	rundll32.exe	30
PID 2800 wrote to memory of 2488	2800	rundll32.exe	31
PID 2800 wrote to memory of 2488	2800	rundll32.exe	31
PID 2800 wrote to memory of 2488	2800	rundll32.exe	31
PID 2800 wrote to memory of 2488	2800	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\835b421866056272b99e15e2f49f70c4977a64a14422402be11b53563cfbdf57.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2832
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\835b421866056272b99e15e2f49f70c4977a64a14422402be11b53563cfbdf57.dll,#1
  2⤵
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2800
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2800 -s 228
    3⤵
    - Program crash
    PID:2488

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2800-1-0x0000000043E50000-0x0000000043E77000-memory.dmp

Filesize
156KB

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