b5f7ee792e4f392e0b0c9c81ba611a8f8d5113e94a4c6817c88732b930ad125a

Analysis

max time kernel
16s
max time network
16s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
08/03/2025, 12:52

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General

Target

b5f7ee792e4f392e0b0c9c81ba611a8f8d5113e94a4c6817c88732b930ad125a.dll
Size

137KB
MD5

81900cd819492780dc690684861baad8
SHA1

9847e82c0d4e62af4ff39b80ffda5e232d7156fb
SHA256

b5f7ee792e4f392e0b0c9c81ba611a8f8d5113e94a4c6817c88732b930ad125a
SHA512

ec2134711b9f7c77d04c972a557a5a448df6d97a8d97bf35f573b49593619b32bb0989e1151f89b5188e7eb5509bd784ec6feadf0d9b75775c56f00f2cfdc7fd
SSDEEP

3072:0R02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuT:x25GgFny61mra9

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
2644	1704	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 2604 wrote to memory of 1704	2604	rundll32.exe	30
PID 2604 wrote to memory of 1704	2604	rundll32.exe	30
PID 2604 wrote to memory of 1704	2604	rundll32.exe	30
PID 2604 wrote to memory of 1704	2604	rundll32.exe	30
PID 2604 wrote to memory of 1704	2604	rundll32.exe	30
PID 2604 wrote to memory of 1704	2604	rundll32.exe	30
PID 2604 wrote to memory of 1704	2604	rundll32.exe	30
PID 1704 wrote to memory of 2644	1704	rundll32.exe	31
PID 1704 wrote to memory of 2644	1704	rundll32.exe	31
PID 1704 wrote to memory of 2644	1704	rundll32.exe	31
PID 1704 wrote to memory of 2644	1704	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b5f7ee792e4f392e0b0c9c81ba611a8f8d5113e94a4c6817c88732b930ad125a.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2604
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b5f7ee792e4f392e0b0c9c81ba611a8f8d5113e94a4c6817c88732b930ad125a.dll,#1
  2⤵
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1704
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1704 -s 228
    3⤵
    - Program crash
    PID:2644

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

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Downloads

memory/1704-1-0x0000000043E50000-0x0000000043E77000-memory.dmp

Filesize
156KB

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