berbew | 3b884198e0c13a00fe2c7474d87dc63f494d2cdbecb3a3da461a22f064a9ed2c

General

Target

3b884198e0c13a00fe2c7474d87dc63f494d2cdbecb3a3da461a22f064a9ed2c.exe
Size

96KB
MD5

433d315407a1beae1c4a318faf40c2ca
SHA1

bbdd836aa0a94fd1996c60b385eace87447219ac
SHA256

3b884198e0c13a00fe2c7474d87dc63f494d2cdbecb3a3da461a22f064a9ed2c
SHA512

3b62c8e85e550fab0af4c829caae60236f7e0d29c150897325669b2d7793471195d81b350ec170aa324b5dbce974abed1f7f7c3a57c498eb00f0913a5d2a6389
SSDEEP

3072:95GSGbrkmGvjX25dEwxIDl5Dvbd69jc0vH:95GdIjqiwslFbd6NVH

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 4 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	3b884198e0c13a00fe2c7474d87dc63f494d2cdbecb3a3da461a22f064a9ed2c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\Web Event Logger = "{79FAA099-1BAE-816E-D711-115290CEE717}"	3b884198e0c13a00fe2c7474d87dc63f494d2cdbecb3a3da461a22f064a9ed2c.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad	Llpfjomf.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\Web Event Logger = "{79FAA099-1BAE-816E-D711-115290CEE717}"	Llpfjomf.exe

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

Executes dropped EXE 2 IoCs

pid	Process
2692	Llpfjomf.exe
2968	Lbjofi32.exe

Loads dropped DLL 8 IoCs

pid	Process
1620	3b884198e0c13a00fe2c7474d87dc63f494d2cdbecb3a3da461a22f064a9ed2c.exe
1620	3b884198e0c13a00fe2c7474d87dc63f494d2cdbecb3a3da461a22f064a9ed2c.exe
2692	Llpfjomf.exe
2692	Llpfjomf.exe
2820	WerFault.exe
2820	WerFault.exe
2820	WerFault.exe
2820	WerFault.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Llpfjomf.exe	3b884198e0c13a00fe2c7474d87dc63f494d2cdbecb3a3da461a22f064a9ed2c.exe
File created	C:\Windows\SysWOW64\Bccjfi32.dll	3b884198e0c13a00fe2c7474d87dc63f494d2cdbecb3a3da461a22f064a9ed2c.exe
File created	C:\Windows\SysWOW64\Lbjofi32.exe	Llpfjomf.exe
File opened for modification	C:\Windows\SysWOW64\Lbjofi32.exe	Llpfjomf.exe
File created	C:\Windows\SysWOW64\Ipafocdg.dll	Llpfjomf.exe
File created	C:\Windows\SysWOW64\Llpfjomf.exe	3b884198e0c13a00fe2c7474d87dc63f494d2cdbecb3a3da461a22f064a9ed2c.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2820	2968	WerFault.exe	31

System Location Discovery: System Language Discovery 1 TTPs 3 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	3b884198e0c13a00fe2c7474d87dc63f494d2cdbecb3a3da461a22f064a9ed2c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Llpfjomf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Lbjofi32.exe

Modifies registry class 9 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79FAA099-1BAE-816E-D711-115290CEE717}\InProcServer32\ThreadingModel = "Apartment"	3b884198e0c13a00fe2c7474d87dc63f494d2cdbecb3a3da461a22f064a9ed2c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79FAA099-1BAE-816E-D711-115290CEE717}\InProcServer32\ = "C:\\Windows\\SysWow64\\Ipafocdg.dll"	Llpfjomf.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79FAA099-1BAE-816E-D711-115290CEE717}	3b884198e0c13a00fe2c7474d87dc63f494d2cdbecb3a3da461a22f064a9ed2c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79FAA099-1BAE-816E-D711-115290CEE717}\InProcServer32\ = "C:\\Windows\\SysWow64\\Bccjfi32.dll"	3b884198e0c13a00fe2c7474d87dc63f494d2cdbecb3a3da461a22f064a9ed2c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	3b884198e0c13a00fe2c7474d87dc63f494d2cdbecb3a3da461a22f064a9ed2c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79FAA099-1BAE-816E-D711-115290CEE717}\InProcServer32	Llpfjomf.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79FAA099-1BAE-816E-D711-115290CEE717}\InProcServer32\ThreadingModel = "Apartment"	Llpfjomf.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79FAA099-1BAE-816E-D711-115290CEE717}\InProcServer32	3b884198e0c13a00fe2c7474d87dc63f494d2cdbecb3a3da461a22f064a9ed2c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node	3b884198e0c13a00fe2c7474d87dc63f494d2cdbecb3a3da461a22f064a9ed2c.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1620 wrote to memory of 2692	1620	3b884198e0c13a00fe2c7474d87dc63f494d2cdbecb3a3da461a22f064a9ed2c.exe	30
PID 1620 wrote to memory of 2692	1620	3b884198e0c13a00fe2c7474d87dc63f494d2cdbecb3a3da461a22f064a9ed2c.exe	30
PID 1620 wrote to memory of 2692	1620	3b884198e0c13a00fe2c7474d87dc63f494d2cdbecb3a3da461a22f064a9ed2c.exe	30
PID 1620 wrote to memory of 2692	1620	3b884198e0c13a00fe2c7474d87dc63f494d2cdbecb3a3da461a22f064a9ed2c.exe	30
PID 2692 wrote to memory of 2968	2692	Llpfjomf.exe	31
PID 2692 wrote to memory of 2968	2692	Llpfjomf.exe	31
PID 2692 wrote to memory of 2968	2692	Llpfjomf.exe	31
PID 2692 wrote to memory of 2968	2692	Llpfjomf.exe	31
PID 2968 wrote to memory of 2820	2968	Lbjofi32.exe	32
PID 2968 wrote to memory of 2820	2968	Lbjofi32.exe	32
PID 2968 wrote to memory of 2820	2968	Lbjofi32.exe	32
PID 2968 wrote to memory of 2820	2968	Lbjofi32.exe	32

C:\Users\Admin\AppData\Local\Temp\3b884198e0c13a00fe2c7474d87dc63f494d2cdbecb3a3da461a22f064a9ed2c.exe
"C:\Users\Admin\AppData\Local\Temp\3b884198e0c13a00fe2c7474d87dc63f494d2cdbecb3a3da461a22f064a9ed2c.exe"
1⤵
- Adds autorun key to be loaded by Explorer.exe on startup
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1620
- C:\Windows\SysWOW64\Llpfjomf.exe
  C:\Windows\system32\Llpfjomf.exe
  2⤵
  - Adds autorun key to be loaded by Explorer.exe on startup
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2692
- - C:\Windows\SysWOW64\Lbjofi32.exe
    C:\Windows\system32\Lbjofi32.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2968
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2968 -s 140
      4⤵
      Loads dropped DLL
      Program crash
      PID:2820

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\Lbjofi32.exe

Filesize
96KB

MD5
164d5e6eb1671ff3b8dca6306796aa44

SHA1
41cbd3b8af275eb944e540a7664c7a040efd03e3

SHA256
b20ae5298e6b3217f7979de483e7fbae111d56462231244dd91c429a5a2a981a

SHA512
52188370bc86e3b58a32fe4fcbddd5f57c13b789f3a4839c2b2e66fe22b0a763a52737b656a14eaaa6bfe0674fe992424acf2218d7e28bd6a3cd82bb72b95a2a

Download Submit
C:\Windows\SysWOW64\Llpfjomf.exe

Filesize
96KB

MD5
af38fc7db8acc590ce1dac164282a159

SHA1
c88d1fed846598f1eb00ab82f6345cd83462a490

SHA256
6188b641850b775690ba35cfe32fd0cc4aeac382b7359ae4ad483fe4c200594f

SHA512
4da6d426296d631720144a9b6ca5df1fb901d99e1f0aa00edccd239354edd9128abe90d66f41adbbd792cebe04dd89b48dbea511d8128da44cb65e3ce77e3af7

Download Submit
memory/1620-0-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1620-13-0x0000000000260000-0x00000000002A2000-memory.dmp

Filesize
264KB

Download
memory/1620-12-0x0000000000260000-0x00000000002A2000-memory.dmp

Filesize
264KB

Download
memory/1620-33-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2692-14-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2692-32-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2968-27-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads