berbew | e78eaf245f36092827e378f48316059071d034ac19cc382eb264a18c5f36f724

General

Target

e78eaf245f36092827e378f48316059071d034ac19cc382eb264a18c5f36f724.exe
Size

2.5MB
MD5

ae94969b981dec798cfffcdb967bd315
SHA1

0673c9c57a908c38e6a65a17d65f058bceaf64df
SHA256

e78eaf245f36092827e378f48316059071d034ac19cc382eb264a18c5f36f724
SHA512

466d84595eb981d70def7a1c13f128cfe57538e315f89ff275f3b41d73282e763c5046d86a7aa48e8db50fa74fa22af18541f9cb30e3f048e2a8aaea6667dd4a
SSDEEP

6144:rrn0MIWZxVe6UK+42GTQMJSZO5JVuvw0HBHOnehl:fn0MHCkY660JVaw0HBHOehl

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	e78eaf245f36092827e378f48316059071d034ac19cc382eb264a18c5f36f724.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\Web Event Logger = "{79FAA099-1BAE-816E-D711-115290CEE717}"	e78eaf245f36092827e378f48316059071d034ac19cc382eb264a18c5f36f724.exe

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

Executes dropped EXE 1 IoCs

pid	Process
3740	Dmllipeg.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Dmllipeg.exe	e78eaf245f36092827e378f48316059071d034ac19cc382eb264a18c5f36f724.exe
File opened for modification	C:\Windows\SysWOW64\Dmllipeg.exe	e78eaf245f36092827e378f48316059071d034ac19cc382eb264a18c5f36f724.exe
File created	C:\Windows\SysWOW64\Kngpec32.dll	e78eaf245f36092827e378f48316059071d034ac19cc382eb264a18c5f36f724.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4772	3740	WerFault.exe	83

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	e78eaf245f36092827e378f48316059071d034ac19cc382eb264a18c5f36f724.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\{79FAA099-1BAE-816E-D711-115290CEE717}\InProcServer32	e78eaf245f36092827e378f48316059071d034ac19cc382eb264a18c5f36f724.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node	e78eaf245f36092827e378f48316059071d034ac19cc382eb264a18c5f36f724.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	e78eaf245f36092827e378f48316059071d034ac19cc382eb264a18c5f36f724.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{79FAA099-1BAE-816E-D711-115290CEE717}	e78eaf245f36092827e378f48316059071d034ac19cc382eb264a18c5f36f724.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{79FAA099-1BAE-816E-D711-115290CEE717}\InProcServer32\ = "C:\\Windows\\SysWow64\\Kngpec32.dll"	e78eaf245f36092827e378f48316059071d034ac19cc382eb264a18c5f36f724.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{79FAA099-1BAE-816E-D711-115290CEE717}\InProcServer32\ThreadingModel = "Apartment"	e78eaf245f36092827e378f48316059071d034ac19cc382eb264a18c5f36f724.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 964 wrote to memory of 3740	964	e78eaf245f36092827e378f48316059071d034ac19cc382eb264a18c5f36f724.exe	83
PID 964 wrote to memory of 3740	964	e78eaf245f36092827e378f48316059071d034ac19cc382eb264a18c5f36f724.exe	83
PID 964 wrote to memory of 3740	964	e78eaf245f36092827e378f48316059071d034ac19cc382eb264a18c5f36f724.exe	83

C:\Users\Admin\AppData\Local\Temp\e78eaf245f36092827e378f48316059071d034ac19cc382eb264a18c5f36f724.exe
"C:\Users\Admin\AppData\Local\Temp\e78eaf245f36092827e378f48316059071d034ac19cc382eb264a18c5f36f724.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:964
- C:\Windows\SysWOW64\Dmllipeg.exe
  C:\Windows\system32\Dmllipeg.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3740
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3740 -s 408
    3⤵
    - Program crash
    PID:4772

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3740 -ip 3740
1⤵
PID:1068

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\Dmllipeg.exe

Filesize
2.5MB

MD5
2214027d9a16d005990049b50e5d87a2

SHA1
e0e8db0b345a06c7bc59c01e683626137ea5ae66

SHA256
29a9ea6622a4c0cd039df532dd2824d5095c846e242e9b16a6a2cf4aabcdc207

SHA512
7e5900ea7d93b925712e1a0c6ed525758b3612b3c82498651ef9c8b2229e1cd59fe9177eeaf9ac24d50669d2281eb7b03d8b78486cd65cf49f9f2079f7b8f2ae

Download Submit
memory/964-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/964-12-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/3740-7-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/3740-11-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads