berbew | 8fb0d4bb7efab0eebf46c4ddd625951e5639053b8190e048e6bdfba443a94324

Analysis

max time kernel
73s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-12-2024 21:10

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General

Target

8fb0d4bb7efab0eebf46c4ddd625951e5639053b8190e048e6bdfba443a94324.exe
Size

472KB
MD5

21c2a6450af2c973705f2c4948ba4a26
SHA1

4119d2d77cff1c294cb74308694e283f57a46133
SHA256

8fb0d4bb7efab0eebf46c4ddd625951e5639053b8190e048e6bdfba443a94324
SHA512

5c119b394a9689fb742fb11ddf7827b322a6296165e0004aa6d022e536a8a850cf20d75ea4d9710c16d0ec78713e9ed3f9866b2b16bb6a3a392db271bad06332
SSDEEP

3072:8q8RinudiP52xx67lLdQiHDoh1aP58Fh+wd5u6/5B7vLXVw:8kgiPA6RyPIQkk5fRB9w

Score

10^/10

berbew backdoor discovery

Malware Config

Signatures

Berbew
Berbew is a backdoor written in C++.
backdoor berbew
Berbew family
berbew

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2332	1752	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	8fb0d4bb7efab0eebf46c4ddd625951e5639053b8190e048e6bdfba443a94324.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1752 wrote to memory of 2332	1752	8fb0d4bb7efab0eebf46c4ddd625951e5639053b8190e048e6bdfba443a94324.exe	31
PID 1752 wrote to memory of 2332	1752	8fb0d4bb7efab0eebf46c4ddd625951e5639053b8190e048e6bdfba443a94324.exe	31
PID 1752 wrote to memory of 2332	1752	8fb0d4bb7efab0eebf46c4ddd625951e5639053b8190e048e6bdfba443a94324.exe	31
PID 1752 wrote to memory of 2332	1752	8fb0d4bb7efab0eebf46c4ddd625951e5639053b8190e048e6bdfba443a94324.exe	31

C:\Users\Admin\AppData\Local\Temp\8fb0d4bb7efab0eebf46c4ddd625951e5639053b8190e048e6bdfba443a94324.exe
"C:\Users\Admin\AppData\Local\Temp\8fb0d4bb7efab0eebf46c4ddd625951e5639053b8190e048e6bdfba443a94324.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1752
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1752 -s 36
  2⤵
  - Program crash
  PID:2332

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/1752-1-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

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