berbew | f314fe5eaa0ac714230ffc1128d83e6ba35440c14ac01640aa32b2fd4bb484d0

General

Target
f314fe5eaa0ac714230ffc1128d83e6ba35440c14ac01640aa32b2fd4bb484d0.exe
Size 359KB
Sample260826-y3deeaszhy
SHA256 f314fe5eaa0ac714230ffc1128d83e6ba35440c14ac01640aa32b2fd4bb484d0
MD5 8b7d0cdad0567c9219b32c9832722368
SHA1 01d2600aa932565c243b46312317f40ee8018d32
SHA512 52e6d2484eb7a5fb0361da425f139bf15e1e35ca2e7f3a3ae9e726cf0e7ee7368bd405b7583c68eb5fbd6bff894e87a912025a6d9d42fef04c969953754f404c
SSDEEP 6144:ykgiPA6RDsSYVrOigcC6oQ6+EcC6oQ6+YahBQyiTACPTRN6+YahBQyiTAgiuMRl0:uiP8K9E6n9E6vah6yiMCPTRN6vah6yi5
TLSH
T1C5749D16AEB04C22D45877721976CB6389B6FE3005D4E63EA781BECCDC39789607274E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor discovery berbew persistence

Malware Config

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	f314fe5eaa0ac714230ffc1128d83e6ba35440c14ac01640aa32b2fd4bb484d0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\Web Event Logger = "{79FAA099-1BAE-816E-D711-115290CEE717}"	f314fe5eaa0ac714230ffc1128d83e6ba35440c14ac01640aa32b2fd4bb484d0.exe

Executes dropped EXE 1 IoCs

pid	Process
4500	Bedbhi32.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Bedbhi32.exe	f314fe5eaa0ac714230ffc1128d83e6ba35440c14ac01640aa32b2fd4bb484d0.exe
File opened for modification	C:\Windows\SysWOW64\Bedbhi32.exe	f314fe5eaa0ac714230ffc1128d83e6ba35440c14ac01640aa32b2fd4bb484d0.exe
File created	C:\Windows\SysWOW64\Efiopa32.dll	f314fe5eaa0ac714230ffc1128d83e6ba35440c14ac01640aa32b2fd4bb484d0.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3492	4500	WerFault.exe	86

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	f314fe5eaa0ac714230ffc1128d83e6ba35440c14ac01640aa32b2fd4bb484d0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Bedbhi32.exe

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{79FAA099-1BAE-816E-D711-115290CEE717}\InProcServer32	f314fe5eaa0ac714230ffc1128d83e6ba35440c14ac01640aa32b2fd4bb484d0.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node	f314fe5eaa0ac714230ffc1128d83e6ba35440c14ac01640aa32b2fd4bb484d0.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	f314fe5eaa0ac714230ffc1128d83e6ba35440c14ac01640aa32b2fd4bb484d0.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{79FAA099-1BAE-816E-D711-115290CEE717}	f314fe5eaa0ac714230ffc1128d83e6ba35440c14ac01640aa32b2fd4bb484d0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{79FAA099-1BAE-816E-D711-115290CEE717}\InProcServer32\ = "C:\\Windows\\SysWow64\\Efiopa32.dll"	f314fe5eaa0ac714230ffc1128d83e6ba35440c14ac01640aa32b2fd4bb484d0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{79FAA099-1BAE-816E-D711-115290CEE717}\InProcServer32\ThreadingModel = "Apartment"	f314fe5eaa0ac714230ffc1128d83e6ba35440c14ac01640aa32b2fd4bb484d0.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 4352 wrote to memory of 4500	4352	f314fe5eaa0ac714230ffc1128d83e6ba35440c14ac01640aa32b2fd4bb484d0.exe	86

C:\Users\Admin\AppData\Local\Temp\f314fe5eaa0ac714230ffc1128d83e6ba35440c14ac01640aa32b2fd4bb484d0.exe
"C:\Users\Admin\AppData\Local\Temp\f314fe5eaa0ac714230ffc1128d83e6ba35440c14ac01640aa32b2fd4bb484d0.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:4352
- C:\Windows\SysWOW64\Bedbhi32.exe
  C:\Windows\system32\Bedbhi32.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4500
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4500 -s 412
    3⤵
    - Program crash
    PID:3492

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4500 -ip 4500
1⤵
PID:3244

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

Bedbhi32.exe

Path C:\Windows\SysWOW64\Bedbhi32.exe
Size 359KB
SHA256 b429e544a999f8111a95edfe353097fc2ef61ef47c301cb2b611c6cb10e4de0f
MD5 39f0d0353af5aa9d357df08310e1e2dd
SHA1 12f13114f436d90056199fb6fc8d8751df0141a8
SHA512 ccd0f1bbe6b23ea2709f4b4e3271b352cea6b0ba0ea620c9d0611d8e0ba027df1ff7538b7604c833949ce49beac124f097000010163aca09dd1458a08f679bf7
SSDEEP 6144:EYIzRUMHMin5L5YVrOigcC6oQ6+EcC6oQ6+YahBQyiTACPTRN6+YahBQyiTAgiun:En1DHHIK9E6n9E6vah6yiMCPTRN6vahW
TLSH
T12F748C069AB14C25CDF87B320E6BC75359A2FE1415E4C63B2A417E8CD9F738910F269E
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4352-0-0x0000000000400000-0x000000000046F000-memory.dmp

Download

memory/4352-5-0x0000000000431000-0x0000000000432000-memory.dmp

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memory/4352-13-0x0000000000400000-0x000000000046F000-memory.dmp

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memory/4500-9-0x0000000000400000-0x000000000046F000-memory.dmp

Download

memory/4500-12-0x0000000000400000-0x000000000046F000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads