berbew | ea2e750027d25804716945b4fbd1726d1a95dc7164032cd2a24056e6b6279247

General

Target

ea2e750027d25804716945b4fbd1726d1a95dc7164032cd2a24056e6b6279247.exe
Size

74KB
MD5

d3e81a92ab6817c5290b99118cffc7a3
SHA1

3655a3bf5e7eb338c2871fd38bfbece4024dd265
SHA256

ea2e750027d25804716945b4fbd1726d1a95dc7164032cd2a24056e6b6279247
SHA512

865ec94780f8a18ea801423928d605b42c180273ba728a0ee91594c8dc0ffcd6052db543fcaf40e97eb12d4c1b26a88ed6c366565254de38b2933d6d70aa4773
SSDEEP

1536:IARkLHw+8eQtAUtYfrZ7r8UDx7Zz5HpUsWr+IvbRS:TRVtAr9r8yxFz5EyIvFS

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	ea2e750027d25804716945b4fbd1726d1a95dc7164032cd2a24056e6b6279247.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\Web Event Logger = "{79FAA099-1BAE-816E-D711-115290CEE717}"	ea2e750027d25804716945b4fbd1726d1a95dc7164032cd2a24056e6b6279247.exe

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

Executes dropped EXE 1 IoCs

pid	Process
4700	Dmllipeg.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Dmllipeg.exe	ea2e750027d25804716945b4fbd1726d1a95dc7164032cd2a24056e6b6279247.exe
File opened for modification	C:\Windows\SysWOW64\Dmllipeg.exe	ea2e750027d25804716945b4fbd1726d1a95dc7164032cd2a24056e6b6279247.exe
File created	C:\Windows\SysWOW64\Kngpec32.dll	ea2e750027d25804716945b4fbd1726d1a95dc7164032cd2a24056e6b6279247.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3296	4700	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	ea2e750027d25804716945b4fbd1726d1a95dc7164032cd2a24056e6b6279247.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Dmllipeg.exe

Modifies registry class 6 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{79FAA099-1BAE-816E-D711-115290CEE717}\InProcServer32\ThreadingModel = "Apartment"	ea2e750027d25804716945b4fbd1726d1a95dc7164032cd2a24056e6b6279247.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{79FAA099-1BAE-816E-D711-115290CEE717}\InProcServer32	ea2e750027d25804716945b4fbd1726d1a95dc7164032cd2a24056e6b6279247.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node	ea2e750027d25804716945b4fbd1726d1a95dc7164032cd2a24056e6b6279247.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	ea2e750027d25804716945b4fbd1726d1a95dc7164032cd2a24056e6b6279247.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{79FAA099-1BAE-816E-D711-115290CEE717}	ea2e750027d25804716945b4fbd1726d1a95dc7164032cd2a24056e6b6279247.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{79FAA099-1BAE-816E-D711-115290CEE717}\InProcServer32\ = "C:\\Windows\\SysWow64\\Kngpec32.dll"	ea2e750027d25804716945b4fbd1726d1a95dc7164032cd2a24056e6b6279247.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1268 wrote to memory of 4700	1268	ea2e750027d25804716945b4fbd1726d1a95dc7164032cd2a24056e6b6279247.exe	83
PID 1268 wrote to memory of 4700	1268	ea2e750027d25804716945b4fbd1726d1a95dc7164032cd2a24056e6b6279247.exe	83
PID 1268 wrote to memory of 4700	1268	ea2e750027d25804716945b4fbd1726d1a95dc7164032cd2a24056e6b6279247.exe	83

C:\Users\Admin\AppData\Local\Temp\ea2e750027d25804716945b4fbd1726d1a95dc7164032cd2a24056e6b6279247.exe
"C:\Users\Admin\AppData\Local\Temp\ea2e750027d25804716945b4fbd1726d1a95dc7164032cd2a24056e6b6279247.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:1268
- C:\Windows\SysWOW64\Dmllipeg.exe
  C:\Windows\system32\Dmllipeg.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4700
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4700 -s 408
    3⤵
    - Program crash
    PID:3296

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4700 -ip 4700
1⤵
PID:4584

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
74KB

MD5
41fc0dafb7a34fc34be835484b658e68

SHA1
95c8920958721e3ed24d2b02075c5d17909eb418

SHA256
1f7416bf1c755c018d62f036df1ef6c0e208a8ebaaf1b7019704ef0fd26747ea

SHA512
652706875334016c332945ba477f7ca2bb9dc55f67b7266043659871893f2fd0f6bc9e918fbfa8fa981d294d3180ef5dddc7bb00242775b780f6dce330e713dc

Download Submit
memory/1268-0-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/1268-10-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/4700-7-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/4700-9-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads