berbew | bd018f424a91b6bc69961ede94b163bbfed34abe693501a459cf55577522d2a4

General

Target
bd018f424a91b6bc69961ede94b163bbfed34abe693501a459cf55577522d2a4.exe
Size 60KB
Sample260826-1dcspaxamd
SHA256 bd018f424a91b6bc69961ede94b163bbfed34abe693501a459cf55577522d2a4
MD5 d3657d1956fa7b044eacdfa5cbe89f0c
SHA1 d0fe832c6bfe81ff715454ef015b0da403bb73d2
SHA512 1e8e84fed3c9854d1fd4c58385950229ff83690c7c51bc40029bcca16dd4fae9179cc91a80d563eeb5ae990fb382f5150d71529a537e3aa78676fc144b3c2c61
SSDEEP 768:d6cPsAifwZJ0cZGUk6vJOBdhqm2PeaiBWJQeNt0UR2p/1H5w9XdnhYakM8heu:kccYH/Gnc+hmlJQefTR2LoAMCeu
TLSH
T12E533A3B65A04FB2C508497011FA1FF2D17A41B612FEAD0AE7D4C6A0E23B5C5D53A78D
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor discovery berbew persistence

Malware Config

Extracted

Family

berbew

C2

http://crutop.nu/index.php
http://crutop.ru/index.php
http://mazafaka.ru/index.php
http://color-bank.ru/index.php
http://asechka.ru/index.php
http://trojan.ru/index.php
http://fuck.ru/index.php
http://goldensand.ru/index.php
http://filesearch.ru/index.php
http://devx.nm.ru/index.php
http://ros-neftbank.ru/index.php
http://lovingod.host.sk/index.php
http://www.redline.ru/index.php
http://cvv.ru/index.php
http://hackers.lv/index.php
http://fethard.biz/index.php
http://ldark.nm.ru/index.htm
http://gaz-prom.ru/index.htm
http://promo.ru/index.htm
http://potleaf.chat.ru/index.htm
http://kadet.ru/index.htm
http://cvv.ru/index.htm
http://crutop.nu/index.htm
http://crutop.ru/index.htm
http://mazafaka.ru/index.htm
http://xware.cjb.net/index.htm
http://konfiskat.org/index.htm
http://parex-bank.ru/index.htm
http://kidos-bank.ru/index.htm
http://kavkaz.ru/index.htm
http://fethard.biz/index.htm

Signatures

Family: Berbew
Berbew is a backdoor written in C++.
backdoor berbew

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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\Web Event Logger = "{79FEACFF-FFCE-815E-A900-316290B5B738}"	bd018f424a91b6bc69961ede94b163bbfed34abe693501a459cf55577522d2a4.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad	bd018f424a91b6bc69961ede94b163bbfed34abe693501a459cf55577522d2a4.exe

Executes dropped EXE 1 IoCs

pid	Process
4024	Mmfkhmdi.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Mmfkhmdi.exe	bd018f424a91b6bc69961ede94b163bbfed34abe693501a459cf55577522d2a4.exe
File opened for modification	C:\Windows\SysWOW64\Mmfkhmdi.exe	bd018f424a91b6bc69961ede94b163bbfed34abe693501a459cf55577522d2a4.exe
File created	C:\Windows\SysWOW64\Jencdebl.dll	bd018f424a91b6bc69961ede94b163bbfed34abe693501a459cf55577522d2a4.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2172	4024	WerFault.exe	85

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	bd018f424a91b6bc69961ede94b163bbfed34abe693501a459cf55577522d2a4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Mmfkhmdi.exe

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node	bd018f424a91b6bc69961ede94b163bbfed34abe693501a459cf55577522d2a4.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	bd018f424a91b6bc69961ede94b163bbfed34abe693501a459cf55577522d2a4.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{79FEACFF-FFCE-815E-A900-316290B5B738}	bd018f424a91b6bc69961ede94b163bbfed34abe693501a459cf55577522d2a4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{79FEACFF-FFCE-815E-A900-316290B5B738}\InProcServer32\ = "C:\\Windows\\SysWow64\\Jencdebl.dll"	bd018f424a91b6bc69961ede94b163bbfed34abe693501a459cf55577522d2a4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{79FEACFF-FFCE-815E-A900-316290B5B738}\InProcServer32\ThreadingModel = "Apartment"	bd018f424a91b6bc69961ede94b163bbfed34abe693501a459cf55577522d2a4.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{79FEACFF-FFCE-815E-A900-316290B5B738}\InProcServer32	bd018f424a91b6bc69961ede94b163bbfed34abe693501a459cf55577522d2a4.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 744 wrote to memory of 4024	744	bd018f424a91b6bc69961ede94b163bbfed34abe693501a459cf55577522d2a4.exe	85

C:\Users\Admin\AppData\Local\Temp\bd018f424a91b6bc69961ede94b163bbfed34abe693501a459cf55577522d2a4.exe
"C:\Users\Admin\AppData\Local\Temp\bd018f424a91b6bc69961ede94b163bbfed34abe693501a459cf55577522d2a4.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:744
- C:\Windows\SysWOW64\Mmfkhmdi.exe
  C:\Windows\system32\Mmfkhmdi.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4024
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4024 -s 400
    3⤵
    - Program crash
    PID:2172

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4024 -ip 4024
1⤵
PID:4944

Network

MITRE ATT&CK Enterprise v16

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

Mmfkhmdi.exe

Path C:\Windows\SysWOW64\Mmfkhmdi.exe
Size 60KB
SHA256 b616cc518d08e43e2837f29963134aa4bb792ed193324416ed0fad71012846e0
MD5 1e08fe7c5344ea000580858863564460
SHA1 8bfbd0a3b7df3fd040bd0f5b2aba8fb5b05ce1dc
SHA512 656abd1884362e118d8c3fe5c494afff5509eedff47c0910b88919a7fa4eb7a164474f68357b54e10b4f377bd2772d9e8ea0d1333bb4593ac95450c93dd4d86e
SSDEEP 1536:HHKh8LuC0X7DPCOo2xIMRHJl5+6bTTjP2LSAMCeu:nKhoF0XSOeMRHb5zP4Spu
TLSH
T18F537D5B597DEDF2C9C8073930E716C8E298B49F516E809A7270CA8617FF340DAE5788
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/744-0-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/744-1-0x0000000000431000-0x0000000000432000-memory.dmp

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memory/744-11-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/4024-8-0x0000000000400000-0x000000000043A000-memory.dmp

Download

memory/4024-10-0x0000000000400000-0x000000000043A000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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