732d8d6c7d89faf34d4ee551e3af2a54089488f995c52b6643cb9d854dff5573

Analysis

max time kernel
139s
max time network
162s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
09/05/2024, 02:14

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General

Target
cb1660767351e78d0d431528c276d820_NEIKI.exe
Size 407KB
Sample240509-cphajsff66
SHA256 732d8d6c7d89faf34d4ee551e3af2a54089488f995c52b6643cb9d854dff5573
MD5 cb1660767351e78d0d431528c276d820
SHA1 dbc5c8f0ec1ce1bcfc0aadd183b0f0e07cc73cb6
SHA512 9eac9ceeb257d0f0f1802744076d3e0dc1daff5f4c5d0b08fd5978f0d0dd0857925bad98053274e92db157eadae0a050f20afd3136f3c1c3b88e93d4f7b99224
SSDEEP 12288:Ux0LY4znalH72V6te0LkRxWw7BvSa05VhGLZCzEf88BiH5QsT:e0Hzq2V6te0LkRxWw7BvSa05VhGLZCz/
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

backdoor dropper trojan

Malware Config

Signatures

Malware Dropper & Backdoor - Berbew 1 IoCs

Berbew is a backdoor Trojan malware with capabilities to download and install a range of additional malicious software, such as other Trojans, ransomware, and cryptominers.

backdoor trojan dropper

resource	yara_rule
behavioral2/files/0x000c000000023253-5.dat	family_berbew

Deletes itself 1 IoCs

pid	Process
3984	cb1660767351e78d0d431528c276d820_NEIKI.exe

Executes dropped EXE 1 IoCs

pid	Process
3984	cb1660767351e78d0d431528c276d820_NEIKI.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3524	2876	WerFault.exe	89
3312	3984	WerFault.exe	94

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2876	cb1660767351e78d0d431528c276d820_NEIKI.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3984	cb1660767351e78d0d431528c276d820_NEIKI.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2876 wrote to memory of 3984	2876	cb1660767351e78d0d431528c276d820_NEIKI.exe	94
PID 2876 wrote to memory of 3984	2876	cb1660767351e78d0d431528c276d820_NEIKI.exe	94
PID 2876 wrote to memory of 3984	2876	cb1660767351e78d0d431528c276d820_NEIKI.exe	94

C:\Users\Admin\AppData\Local\Temp\cb1660767351e78d0d431528c276d820_NEIKI.exe
"C:\Users\Admin\AppData\Local\Temp\cb1660767351e78d0d431528c276d820_NEIKI.exe"
1⤵
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:2876
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2876 -s 396
  2⤵
  - Program crash
  PID:3524
- C:\Users\Admin\AppData\Local\Temp\cb1660767351e78d0d431528c276d820_NEIKI.exe
  C:\Users\Admin\AppData\Local\Temp\cb1660767351e78d0d431528c276d820_NEIKI.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:3984
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3984 -s 364
    3⤵
    - Program crash
    PID:3312

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2876 -ip 2876
1⤵
PID:1000

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3984 -ip 3984
1⤵
PID:1796

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1408 --field-trial-handle=2276,i,5697607538120380977,9987005253899555344,262144 --variations-seed-version /prefetch:8
1⤵
PID:1504

Network

MITRE ATT&CK Matrix

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Downloads

cb1660767351e78d0d431528c276d820_NEIKI.exe

Path C:\Users\Admin\AppData\Local\Temp\cb1660767351e78d0d431528c276d820_NEIKI.exe
Size 407KB
SHA256 ae3bbec530508923beec0e045cf401cc73e7e5cf0f2f29bce1dd48cf64a106c3
MD5 cc5172c8b15ea54f5d38b3d6aab19d4c
SHA1 42d36548430bf7a0a9e0605dd5098dee4d9123c6
SHA512 9a4568f0ae9478ee0e6dea2579d65ddfeda71623032b8ac3f2c836d1753c7825279e2501a7e7770c540db2df057b7e358049a3e852a04151004b78bf94479b4f
SSDEEP 12288:cjgi7nmZbdCgwtFrxV6te0LkRxWw7BvSa05VhGLZCzEf88BiH5QsT:IgJ3cvV6te0LkRxWw7BvSa05VhGLZCz/
MD5 SHA1 SHA512 SSDEEP

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memory/2876-0-0x0000000000400000-0x0000000000439000-memory.dmp

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memory/2876-6-0x0000000000400000-0x0000000000439000-memory.dmp

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memory/3984-7-0x0000000000400000-0x0000000000439000-memory.dmp

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memory/3984-13-0x0000000000190000-0x00000000001C9000-memory.dmp

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memory/3984-8-0x0000000000400000-0x000000000041A000-memory.dmp

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Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

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