berbew | 3102b9725c97a29a225b3b9f69adf23611965d6528922b2d1854ef8c6f2bf4d9

General

Target
3102b9725c97a29a225b3b9f69adf23611965d6528922b2d1854ef8c6f2bf4d9.exe
Size 64KB
Sample260910-pcs8hagg54
SHA256 3102b9725c97a29a225b3b9f69adf23611965d6528922b2d1854ef8c6f2bf4d9
MD5 c1f782ecdc9dff7e1911529d52f4d9e0
SHA1 5d1267b7fbced2efd1afd60ba7ef6462d77c39a6
SHA512 7df90fc5e693a6b2e431895d2f156d05b8bbb0f93a2da6f65f7a46a24526a1c82a03f1b7d30a56ba61e521eeaf28a88c77e02b783b08abd55cf1ffe5a3ab1b41
SSDEEP 1536:D7++ltm8Y6jHO86sC7evzlLBsLnVLdGUHyNwi:/FlL7O86sYevzlLBsLnVUUHyNwi
TLSH
T14C5338776281C095C5994DB221E1BBBBD6B274B623AF2905D740C17CEA724C9AD3730F
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor discovery berbew persistence

Malware Config

Extracted

Family

berbew

C2

http://tat-neftbank.ru/kkq.php
http://tat-neftbank.ru/wcmd.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
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad	3102b9725c97a29a225b3b9f69adf23611965d6528922b2d1854ef8c6f2bf4d9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\Web Event Logger = "{79FEACFF-FFCE-815E-A900-316290B5B738}"	3102b9725c97a29a225b3b9f69adf23611965d6528922b2d1854ef8c6f2bf4d9.exe

Executes dropped EXE 1 IoCs

pid	Process
4928	Lmneemaq.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Lmneemaq.exe	3102b9725c97a29a225b3b9f69adf23611965d6528922b2d1854ef8c6f2bf4d9.exe
File opened for modification	C:\Windows\SysWOW64\Lmneemaq.exe	3102b9725c97a29a225b3b9f69adf23611965d6528922b2d1854ef8c6f2bf4d9.exe
File created	C:\Windows\SysWOW64\Ijblcb32.dll	3102b9725c97a29a225b3b9f69adf23611965d6528922b2d1854ef8c6f2bf4d9.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3676	4928	WerFault.exe	84

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	3102b9725c97a29a225b3b9f69adf23611965d6528922b2d1854ef8c6f2bf4d9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Lmneemaq.exe

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{79FEACFF-FFCE-815E-A900-316290B5B738}\InProcServer32	3102b9725c97a29a225b3b9f69adf23611965d6528922b2d1854ef8c6f2bf4d9.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node	3102b9725c97a29a225b3b9f69adf23611965d6528922b2d1854ef8c6f2bf4d9.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	3102b9725c97a29a225b3b9f69adf23611965d6528922b2d1854ef8c6f2bf4d9.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{79FEACFF-FFCE-815E-A900-316290B5B738}	3102b9725c97a29a225b3b9f69adf23611965d6528922b2d1854ef8c6f2bf4d9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{79FEACFF-FFCE-815E-A900-316290B5B738}\InProcServer32\ = "C:\\Windows\\SysWow64\\Ijblcb32.dll"	3102b9725c97a29a225b3b9f69adf23611965d6528922b2d1854ef8c6f2bf4d9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{79FEACFF-FFCE-815E-A900-316290B5B738}\InProcServer32\ThreadingModel = "Apartment"	3102b9725c97a29a225b3b9f69adf23611965d6528922b2d1854ef8c6f2bf4d9.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 4856 wrote to memory of 4928	4856	3102b9725c97a29a225b3b9f69adf23611965d6528922b2d1854ef8c6f2bf4d9.exe	84

C:\Users\Admin\AppData\Local\Temp\3102b9725c97a29a225b3b9f69adf23611965d6528922b2d1854ef8c6f2bf4d9.exe
"C:\Users\Admin\AppData\Local\Temp\3102b9725c97a29a225b3b9f69adf23611965d6528922b2d1854ef8c6f2bf4d9.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:4856
- C:\Windows\SysWOW64\Lmneemaq.exe
  C:\Windows\system32\Lmneemaq.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4928
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4928 -s 396
    3⤵
    - Program crash
    PID:3676

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4928 -ip 4928
1⤵
PID:2416

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

Lmneemaq.exe

Path C:\Windows\SysWOW64\Lmneemaq.exe
Size 64KB
SHA256 a03f44cd77a33f486d2b4f79fb2dd005fe374dae6d533f82447bac0f6f5c49f9
MD5 8bfd6786f05ca76ac9a16466cb6092f9
SHA1 e376d0b1ac9120282293ebbe8510c41298ba5f19
SHA512 d0b0d3a7b5a8ffbd5345f1fdff6528ec5d14eec408edea9027bc6fdf50303fb80e7f388352ddf810017cc4c3c07ecf0355cbdac4205b8931582d582019ccb545
SSDEEP 1536:QRrUkdPUL7XWWeggvzsi8SvWI4lLBsLnVLdGUHyNwi:oMmWeFsXeWI4lLBsLnVUUHyNwi
TLSH
T1DE5339F3F5622C53CADBC37B4D859926B1B0AF6A2341F51D66615890FB1250FF832A8C
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4856-0-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/4856-11-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/4928-8-0x0000000000400000-0x000000000042F000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads