berbew | 40971ed736218d1b68321d633d1c1060461be6d035ae73a74c777dce7e9be031

Analysis

max time kernel
69s
max time network
18s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07/12/2024, 19:57

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General

Target

40971ed736218d1b68321d633d1c1060461be6d035ae73a74c777dce7e9be031N.exe
Size

472KB
MD5

ce1f1bb3fcd112f9166c2138005af320
SHA1

f086967908aa00dc94fa3e0dd1581f50d9ec96a9
SHA256

40971ed736218d1b68321d633d1c1060461be6d035ae73a74c777dce7e9be031
SHA512

f441d1f93f43491682273096a0f0fc99953f63b123b9a64e90bb47136534525ab744209ae196c8b288d7b303bf7b7b6bedd24733da3e8a8a1ae6700b62afeb59
SSDEEP

3072:BSO8RinudiP52xx67lLdZiHDojSMSCKIknNNynDrSUCmnfCm04AetXS+:EDkgiPA6RbPmRbIiszf04JXS+

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
2644	3048	WerFault.exe	29

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	40971ed736218d1b68321d633d1c1060461be6d035ae73a74c777dce7e9be031N.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3048 wrote to memory of 2644	3048	40971ed736218d1b68321d633d1c1060461be6d035ae73a74c777dce7e9be031N.exe	30
PID 3048 wrote to memory of 2644	3048	40971ed736218d1b68321d633d1c1060461be6d035ae73a74c777dce7e9be031N.exe	30
PID 3048 wrote to memory of 2644	3048	40971ed736218d1b68321d633d1c1060461be6d035ae73a74c777dce7e9be031N.exe	30
PID 3048 wrote to memory of 2644	3048	40971ed736218d1b68321d633d1c1060461be6d035ae73a74c777dce7e9be031N.exe	30

C:\Users\Admin\AppData\Local\Temp\40971ed736218d1b68321d633d1c1060461be6d035ae73a74c777dce7e9be031N.exe
"C:\Users\Admin\AppData\Local\Temp\40971ed736218d1b68321d633d1c1060461be6d035ae73a74c777dce7e9be031N.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3048
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3048 -s 36
  2⤵
  - 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/3048-1-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

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