berbew | 26c6df51f8063818cf26e11d7da9ba2dbdd28dbbf9b38ba41ee5162cdbffc088

General

Target

26c6df51f8063818cf26e11d7da9ba2dbdd28dbbf9b38ba41ee5162cdbffc088.exe
Size

362KB
MD5

332219a0e94c3e3ee995bac97b5fbe08
SHA1

880eabab811aeb9c4bc349d4b7b55118f389d1f8
SHA256

26c6df51f8063818cf26e11d7da9ba2dbdd28dbbf9b38ba41ee5162cdbffc088
SHA512

ce1983bcc2727d925382e2ba8946ca82cf36ea25f92ba26057a1bd37edcbb711334e2a7fe240be7a5ec83b44652538783839d9376e5dbb2fa3eeadb59f38fd5e
SSDEEP

6144:5NAIPVbUh7x5MbCSiBXf0Rg72xfJ9aCzrwbo1pw00+qnrLYC/VuwkdbA4+D6ByqA:fRPtax+CcROhtYNY6ThtY/

Score

10^/10

berbew backdoor discovery persistence

Malware Config

Extracted

Family

berbew

C2

http://f/wcmd.htm

http://f/ppslog.php

http://f/piplog.php?%s:%i:%i:%s:%09u:%i:%02d:%02d:%02d

Signatures

Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad	26c6df51f8063818cf26e11d7da9ba2dbdd28dbbf9b38ba41ee5162cdbffc088.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\Web Event Logger = "{79FAA099-1BAE-816E-D711-115290CEE717}"	26c6df51f8063818cf26e11d7da9ba2dbdd28dbbf9b38ba41ee5162cdbffc088.exe

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

Executes dropped EXE 1 IoCs

pid	Process
2676	Dmllipeg.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Dmllipeg.exe	26c6df51f8063818cf26e11d7da9ba2dbdd28dbbf9b38ba41ee5162cdbffc088.exe
File opened for modification	C:\Windows\SysWOW64\Dmllipeg.exe	26c6df51f8063818cf26e11d7da9ba2dbdd28dbbf9b38ba41ee5162cdbffc088.exe
File created	C:\Windows\SysWOW64\Kngpec32.dll	26c6df51f8063818cf26e11d7da9ba2dbdd28dbbf9b38ba41ee5162cdbffc088.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1256	2676	WerFault.exe	82

System Location Discovery: System Language Discovery 1 TTPs 2 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	26c6df51f8063818cf26e11d7da9ba2dbdd28dbbf9b38ba41ee5162cdbffc088.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Dmllipeg.exe

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	26c6df51f8063818cf26e11d7da9ba2dbdd28dbbf9b38ba41ee5162cdbffc088.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{79FAA099-1BAE-816E-D711-115290CEE717}	26c6df51f8063818cf26e11d7da9ba2dbdd28dbbf9b38ba41ee5162cdbffc088.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{79FAA099-1BAE-816E-D711-115290CEE717}\InProcServer32\ = "C:\\Windows\\SysWow64\\Kngpec32.dll"	26c6df51f8063818cf26e11d7da9ba2dbdd28dbbf9b38ba41ee5162cdbffc088.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{79FAA099-1BAE-816E-D711-115290CEE717}\InProcServer32\ThreadingModel = "Apartment"	26c6df51f8063818cf26e11d7da9ba2dbdd28dbbf9b38ba41ee5162cdbffc088.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{79FAA099-1BAE-816E-D711-115290CEE717}\InProcServer32	26c6df51f8063818cf26e11d7da9ba2dbdd28dbbf9b38ba41ee5162cdbffc088.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node	26c6df51f8063818cf26e11d7da9ba2dbdd28dbbf9b38ba41ee5162cdbffc088.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2228 wrote to memory of 2676	2228	26c6df51f8063818cf26e11d7da9ba2dbdd28dbbf9b38ba41ee5162cdbffc088.exe	82
PID 2228 wrote to memory of 2676	2228	26c6df51f8063818cf26e11d7da9ba2dbdd28dbbf9b38ba41ee5162cdbffc088.exe	82
PID 2228 wrote to memory of 2676	2228	26c6df51f8063818cf26e11d7da9ba2dbdd28dbbf9b38ba41ee5162cdbffc088.exe	82

C:\Users\Admin\AppData\Local\Temp\26c6df51f8063818cf26e11d7da9ba2dbdd28dbbf9b38ba41ee5162cdbffc088.exe
"C:\Users\Admin\AppData\Local\Temp\26c6df51f8063818cf26e11d7da9ba2dbdd28dbbf9b38ba41ee5162cdbffc088.exe"
1⤵
- Adds autorun key to be loaded by Explorer.exe on startup
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2228
- C:\Windows\SysWOW64\Dmllipeg.exe
  C:\Windows\system32\Dmllipeg.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2676
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2676 -s 416
    3⤵
    - Program crash
    PID:1256

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 2676 -ip 2676
1⤵
PID:4968

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\Dmllipeg.exe

Filesize
362KB

MD5
fd16e377c513a3f5bf9a897eeafd2eb1

SHA1
e481393fb47048a717b0123cc9a3e485359bf4f7

SHA256
0f59ea61d260350a96b4a0540e6cececc6597315da9a279b2dac95ced486fb23

SHA512
c3c1c3f17f9a72fb0835a7bb6a295bd882d383e5992a582e1917639e61c6c7deb82fd2571a89b9a98fbe9e4e67f3f174f5fd3a1329b769c7a2b9d1e57d883018

Download Submit
memory/2228-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2228-12-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2676-7-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2676-11-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads