8c1d744e2dbb7f2bcbb312d54edeabff2ad82fae2e0d7380e392f8bd5a9e0c04

Analysis

max time kernel
142s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20231020-en
resource tags

arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
submitted
02/11/2023, 22:47

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General

Target

NEAS.de412b76d2a41032d6a4db331eec0080_JC.exe
Size

320KB
MD5

de412b76d2a41032d6a4db331eec0080
SHA1

4d14a5ec0180878efae18a6ea3c48774de12b79a
SHA256

8c1d744e2dbb7f2bcbb312d54edeabff2ad82fae2e0d7380e392f8bd5a9e0c04
SHA512

2bbea38cac6c6f1d5d66fd98698fea08f51bacfb14bc9596ecc2c629a5a0a31e6201b4d74db85d4323ad18e35e68659f2083ce04ad8c55a24bcb0560adc969d9
SSDEEP

6144:dd0Uwqn6w/tl8pHn5YUm5vQ0hKtCEvY5BQwKSql4fejxkrAWxeOwvfwEBN+j:dqal8pH6Q/MEvoKlSql4ejAAWxe1X7BY

Score

10^/10

dropper persistence trojan

Malware Config

Signatures

Malware Backdoor - Berbew 1 IoCs

Berbew is a malware infection classified as a 'backdoor' Trojan. This malicious program's primary function is to cause chain infections - it can download/install additional malware such as other Trojans, ransomware, and cryptominers.

persistence dropper trojan

resource	yara_rule
behavioral2/files/0x0007000000022e38-5.dat	family_berbew

Deletes itself 1 IoCs

pid	Process
1328	NEAS.de412b76d2a41032d6a4db331eec0080_JC.exe

Executes dropped EXE 1 IoCs

pid	Process
1328	NEAS.de412b76d2a41032d6a4db331eec0080_JC.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1712	3204	WerFault.exe	85
432	1328	WerFault.exe	93

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
3204	NEAS.de412b76d2a41032d6a4db331eec0080_JC.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
1328	NEAS.de412b76d2a41032d6a4db331eec0080_JC.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3204 wrote to memory of 1328	3204	NEAS.de412b76d2a41032d6a4db331eec0080_JC.exe	93
PID 3204 wrote to memory of 1328	3204	NEAS.de412b76d2a41032d6a4db331eec0080_JC.exe	93
PID 3204 wrote to memory of 1328	3204	NEAS.de412b76d2a41032d6a4db331eec0080_JC.exe	93

C:\Users\Admin\AppData\Local\Temp\NEAS.de412b76d2a41032d6a4db331eec0080_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.de412b76d2a41032d6a4db331eec0080_JC.exe"
1⤵
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:3204
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3204 -s 396
  2⤵
  - Program crash
  PID:1712
- C:\Users\Admin\AppData\Local\Temp\NEAS.de412b76d2a41032d6a4db331eec0080_JC.exe
  C:\Users\Admin\AppData\Local\Temp\NEAS.de412b76d2a41032d6a4db331eec0080_JC.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:1328
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1328 -s 368
    3⤵
    - Program crash
    PID:432

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3204 -ip 3204
1⤵
PID:4368

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 1328 -ip 1328
1⤵
PID:1700

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\NEAS.de412b76d2a41032d6a4db331eec0080_JC.exe

Filesize
320KB

MD5
5b1e1a11a3da67b9d4cc1f593855289d

SHA1
5d12de713cc86cfb35f21b9035c3566c961833f4

SHA256
79e247ef9d608555b8ff53dc73492ad2cf36c65bfef3c19bbbd50d919ef4cda7

SHA512
889d8b3fc314e6d477478e566dbb1aeecd4c18bc14cf0272f0aa5c441b766fd42763de616cd9315aecb0c1f47525568980d3f45514fab1f4e0ec1dfeb532dca8

Download Submit
memory/1328-6-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1328-8-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/1328-9-0x0000000001510000-0x0000000001550000-memory.dmp

Filesize
256KB

Download
memory/1328-14-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3204-0-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3204-7-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download