76b91dcb96aed36e9e39a3b9692542c77176c835a278b20f13248d063929db36

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20250207-en
resource tags

arch:x64arch:x86image:win7-20250207-enlocale:en-usos:windows7-x64system
submitted
05/03/2025, 04:02

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General

Target

76b91dcb96aed36e9e39a3b9692542c77176c835a278b20f13248d063929db36.dll
Size

137KB
MD5

69a254a009f9a1aab272715e4c2f30e1
SHA1

bc27fc0cbb37722570c3d571b3b8e9a82538bd21
SHA256

76b91dcb96aed36e9e39a3b9692542c77176c835a278b20f13248d063929db36
SHA512

1bf02691aaa19d72c56a8c435316eaee1095f0af980a154f0f1afa3ab1227268145e301354d0dce85c6ad0ddc11db3befcd76e1630fa462ffd5a353ba1ef4db5
SSDEEP

3072:9R02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuM:Q25GgFny61mrai

Score

4^/10

discovery

Malware Config

Signatures

Drops file in Windows directory 2 IoCs

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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1660	2248	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 2184 wrote to memory of 2248	2184	rundll32.exe	30
PID 2184 wrote to memory of 2248	2184	rundll32.exe	30
PID 2184 wrote to memory of 2248	2184	rundll32.exe	30
PID 2184 wrote to memory of 2248	2184	rundll32.exe	30
PID 2184 wrote to memory of 2248	2184	rundll32.exe	30
PID 2184 wrote to memory of 2248	2184	rundll32.exe	30
PID 2184 wrote to memory of 2248	2184	rundll32.exe	30
PID 2248 wrote to memory of 1660	2248	rundll32.exe	31
PID 2248 wrote to memory of 1660	2248	rundll32.exe	31
PID 2248 wrote to memory of 1660	2248	rundll32.exe	31
PID 2248 wrote to memory of 1660	2248	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\76b91dcb96aed36e9e39a3b9692542c77176c835a278b20f13248d063929db36.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2184
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\76b91dcb96aed36e9e39a3b9692542c77176c835a278b20f13248d063929db36.dll,#1
  2⤵
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2248
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2248 -s 228
    3⤵
    - Program crash
    PID:1660

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/2248-1-0x0000000043E50000-0x0000000043E77000-memory.dmp

Filesize
156KB

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