33f96e1fe0bbf69004649e12a119af872c0d8bbcfd7a4af310216bdfcf2fc18b

General

Target

NEAS.ab1241c98a10c7e1432d824222a94f70_JC.exe
Size

991KB
MD5

ab1241c98a10c7e1432d824222a94f70
SHA1

d36e2417d05487cf911c5d7cfbcb363951311963
SHA256

33f96e1fe0bbf69004649e12a119af872c0d8bbcfd7a4af310216bdfcf2fc18b
SHA512

a5d11029e9e9f8b85559f23417edef3e27712339ba468c085f8d6db091d42e8c7263e654fc57097cd5402735c5b224a0631ef6eda19394383696e2a5f40ae701
SSDEEP

24576:m4yVOhC+4OAz6hCy0rq2Znkw+a/ZSMQugi8ndZ5G:m4yVOpXA+wZnwg1Qugi8ndZ5G

Score

10^/10

Malware Config

Signatures

Malware Backdoor - Berbew 6 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/memory/4572-0-0x0000000000400000-0x00000000004F5000-memory.dmp	family_berbew
behavioral2/files/0x0008000000022dd8-6.dat	family_berbew
behavioral2/memory/4572-5-0x0000000000400000-0x00000000004F5000-memory.dmp	family_berbew
behavioral2/memory/3900-7-0x0000000000400000-0x00000000004F5000-memory.dmp	family_berbew
behavioral2/memory/3900-8-0x0000000005020000-0x0000000005115000-memory.dmp	family_berbew
behavioral2/memory/3900-25-0x0000000000400000-0x00000000004F5000-memory.dmp	family_berbew

Deletes itself 1 IoCs

pid	Process
3900	NEAS.ab1241c98a10c7e1432d824222a94f70_JC.exe

Executes dropped EXE 1 IoCs

pid	Process
3900	NEAS.ab1241c98a10c7e1432d824222a94f70_JC.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Program crash 13 IoCs

pid	pid_target	Process	procid_target
2192	4572	WerFault.exe	89
5028	3900	WerFault.exe	96
1736	3900	WerFault.exe	96
4980	3900	WerFault.exe	96
3628	3900	WerFault.exe	96
3912	3900	WerFault.exe	96
4100	3900	WerFault.exe	96
4532	3900	WerFault.exe	96
2496	3900	WerFault.exe	96
1696	3900	WerFault.exe	96
2024	3900	WerFault.exe	96
2304	3900	WerFault.exe	96
840	3900	WerFault.exe	96

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3900	NEAS.ab1241c98a10c7e1432d824222a94f70_JC.exe
3900	NEAS.ab1241c98a10c7e1432d824222a94f70_JC.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
4572	NEAS.ab1241c98a10c7e1432d824222a94f70_JC.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3900	NEAS.ab1241c98a10c7e1432d824222a94f70_JC.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4572 wrote to memory of 3900	4572	NEAS.ab1241c98a10c7e1432d824222a94f70_JC.exe	96
PID 4572 wrote to memory of 3900	4572	NEAS.ab1241c98a10c7e1432d824222a94f70_JC.exe	96
PID 4572 wrote to memory of 3900	4572	NEAS.ab1241c98a10c7e1432d824222a94f70_JC.exe	96

C:\Users\Admin\AppData\Local\Temp\NEAS.ab1241c98a10c7e1432d824222a94f70_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.ab1241c98a10c7e1432d824222a94f70_JC.exe"
1⤵
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:4572
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4572 -s 344
  2⤵
  - Program crash
  PID:2192
- C:\Users\Admin\AppData\Local\Temp\NEAS.ab1241c98a10c7e1432d824222a94f70_JC.exe
  C:\Users\Admin\AppData\Local\Temp\NEAS.ab1241c98a10c7e1432d824222a94f70_JC.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of UnmapMainImage
  PID:3900
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3900 -s 344
    3⤵
    - Program crash
    PID:5028
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3900 -s 616
    3⤵
    - Program crash
    PID:1736
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3900 -s 616
    3⤵
    - Program crash
    PID:4980
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3900 -s 728
    3⤵
    - Program crash
    PID:3628
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3900 -s 748
    3⤵
    - Program crash
    PID:3912
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3900 -s 900
    3⤵
    - Program crash
    PID:4100
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3900 -s 1396
    3⤵
    - Program crash
    PID:4532
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3900 -s 1392
    3⤵
    - Program crash
    PID:2496
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3900 -s 1464
    3⤵
    - Program crash
    PID:1696
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3900 -s 1496
    3⤵
    - Program crash
    PID:2024
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3900 -s 1524
    3⤵
    - Program crash
    PID:2304
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3900 -s 1648
    3⤵
    - Program crash
    PID:840

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4572 -ip 4572
1⤵
PID:1676

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3900 -ip 3900
1⤵
PID:2088

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3900 -ip 3900
1⤵
PID:1684

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3900 -ip 3900
1⤵
PID:1264

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 3900 -ip 3900
1⤵
PID:3472

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 592 -p 3900 -ip 3900
1⤵
PID:2548

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 588 -p 3900 -ip 3900
1⤵
PID:3548

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 608 -p 3900 -ip 3900
1⤵
PID:2612

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 604 -p 3900 -ip 3900
1⤵
PID:3068

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 640 -p 3900 -ip 3900
1⤵
PID:2036

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 608 -p 3900 -ip 3900
1⤵
PID:3460

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 644 -p 3900 -ip 3900
1⤵
PID:1480

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 636 -p 3900 -ip 3900
1⤵
PID:2244

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\NEAS.ab1241c98a10c7e1432d824222a94f70_JC.exe

Filesize
991KB

MD5
c7f11f881e5bc73d34151b52bc211540

SHA1
a57f8a086436223bb098043eeb60d50975df3dea

SHA256
959d80534fd0d992fc5b3ec7573848e1bc254c869e1342682cba7f9fe2b82b6f

SHA512
81554786239fba246850d5315573fbc3ff52963f99fa2c040aee0df22d5149f821dfe3b655f8ce1bf995c9d793e3ab8b5e2df85dabf6b3c4802b2cea463a2cd8

Download Submit
memory/3900-7-0x0000000000400000-0x00000000004F5000-memory.dmp

Filesize
980KB

Download
memory/3900-8-0x0000000005020000-0x0000000005115000-memory.dmp

Filesize
980KB

Download
memory/3900-9-0x0000000000400000-0x00000000004A3000-memory.dmp

Filesize
652KB

Download
memory/3900-19-0x000000000B980000-0x000000000BA23000-memory.dmp

Filesize
652KB

Download
memory/3900-18-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/3900-25-0x0000000000400000-0x00000000004F5000-memory.dmp

Filesize
980KB

Download
memory/4572-0-0x0000000000400000-0x00000000004F5000-memory.dmp

Filesize
980KB

Download
memory/4572-5-0x0000000000400000-0x00000000004F5000-memory.dmp

Filesize
980KB

Download

Analysis

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