5cb2c0c16f9ca612b9b3a2c36d0bf6e18408e198e83917de8460ca31acfe6c71

Analysis

max time kernel
154s
max time network
131s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
13-10-2023 20:26

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General

Target

NEAS.654fb8ecea73d9a67ede34e92a45f4c0.dll
Size

525KB
MD5

654fb8ecea73d9a67ede34e92a45f4c0
SHA1

2d27075917efc97ac5d0901142826f9cc0ce4c33
SHA256

5cb2c0c16f9ca612b9b3a2c36d0bf6e18408e198e83917de8460ca31acfe6c71
SHA512

0e50bef007b32605e5bb9684c2e96b91dfc84a0368ba0a4f24d48b2175f8bef72675c8d96a10a91497b46f171bce3410951598c7e432e4a326631cc8a1dbe23f
SSDEEP

12288:+0OHL8TMIEC9XK6KBV2sGHFUQQ+wHOMoL8s/7YaNqY2HVXZ:bOHL8TMIE4XK64VfGHFHwHVQ/DNGZ

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1876	3B1D.tmp

Loads dropped DLL 2 IoCs

pid	Process
584	rundll32.exe
584	rundll32.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\7-Zip\7z.sfx	3B1D.tmp
File opened for modification	C:\Program Files\7-Zip\7zCon.sfx	3B1D.tmp
File opened for modification	C:\Program Files\Mozilla Firefox\maintenanceservice_installer.exe	3B1D.tmp

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2264	584	WerFault.exe	29

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3036 wrote to memory of 584	3036	rundll32.exe	29
PID 3036 wrote to memory of 584	3036	rundll32.exe	29
PID 3036 wrote to memory of 584	3036	rundll32.exe	29
PID 3036 wrote to memory of 584	3036	rundll32.exe	29
PID 3036 wrote to memory of 584	3036	rundll32.exe	29
PID 3036 wrote to memory of 584	3036	rundll32.exe	29
PID 3036 wrote to memory of 584	3036	rundll32.exe	29
PID 584 wrote to memory of 1876	584	rundll32.exe	31
PID 584 wrote to memory of 1876	584	rundll32.exe	31
PID 584 wrote to memory of 1876	584	rundll32.exe	31
PID 584 wrote to memory of 1876	584	rundll32.exe	31
PID 584 wrote to memory of 2264	584	rundll32.exe	32
PID 584 wrote to memory of 2264	584	rundll32.exe	32
PID 584 wrote to memory of 2264	584	rundll32.exe	32
PID 584 wrote to memory of 2264	584	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.654fb8ecea73d9a67ede34e92a45f4c0.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3036
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.654fb8ecea73d9a67ede34e92a45f4c0.dll,#1
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:584
- - C:\Users\Admin\AppData\Local\Temp\3B1D.tmp
    C:\Users\Admin\AppData\Local\Temp\3B1D.tmp
    3⤵
    - Executes dropped EXE
    - Drops file in Program Files directory
    PID:1876
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 584 -s 232
    3⤵
    - Program crash
    PID:2264

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\3B1D.tmp

Filesize
145KB

MD5
c610e7ccd6859872c585b2a85d7dc992

SHA1
362b3d4b72e3add687c209c79b500b7c6a246d46

SHA256
14063fc61dc71b9881d75e93a587c27a6daf8779ff5255a24a042beace541041

SHA512
8570aad2ae8b5dcba00fc5ebf3dc0ea117e96cc88a83febd820c5811bf617a6431c1367b3eb88332f43f80b30ebe2c298c22dcc44860a075f7b41bf350236666

Download Submit
C:\Users\Admin\AppData\Local\Temp\3B1D.tmp

Filesize
145KB

MD5
c610e7ccd6859872c585b2a85d7dc992

SHA1
362b3d4b72e3add687c209c79b500b7c6a246d46

SHA256
14063fc61dc71b9881d75e93a587c27a6daf8779ff5255a24a042beace541041

SHA512
8570aad2ae8b5dcba00fc5ebf3dc0ea117e96cc88a83febd820c5811bf617a6431c1367b3eb88332f43f80b30ebe2c298c22dcc44860a075f7b41bf350236666

Download Submit
C:\Users\Admin\AppData\Local\Temp\3B1D.tmp

Filesize
145KB

MD5
c610e7ccd6859872c585b2a85d7dc992

SHA1
362b3d4b72e3add687c209c79b500b7c6a246d46

SHA256
14063fc61dc71b9881d75e93a587c27a6daf8779ff5255a24a042beace541041

SHA512
8570aad2ae8b5dcba00fc5ebf3dc0ea117e96cc88a83febd820c5811bf617a6431c1367b3eb88332f43f80b30ebe2c298c22dcc44860a075f7b41bf350236666

Download Submit
\Users\Admin\AppData\Local\Temp\3B1D.tmp

Filesize
145KB

MD5
c610e7ccd6859872c585b2a85d7dc992

SHA1
362b3d4b72e3add687c209c79b500b7c6a246d46

SHA256
14063fc61dc71b9881d75e93a587c27a6daf8779ff5255a24a042beace541041

SHA512
8570aad2ae8b5dcba00fc5ebf3dc0ea117e96cc88a83febd820c5811bf617a6431c1367b3eb88332f43f80b30ebe2c298c22dcc44860a075f7b41bf350236666

Download Submit
\Users\Admin\AppData\Local\Temp\3B1D.tmp

Filesize
145KB

MD5
c610e7ccd6859872c585b2a85d7dc992

SHA1
362b3d4b72e3add687c209c79b500b7c6a246d46

SHA256
14063fc61dc71b9881d75e93a587c27a6daf8779ff5255a24a042beace541041

SHA512
8570aad2ae8b5dcba00fc5ebf3dc0ea117e96cc88a83febd820c5811bf617a6431c1367b3eb88332f43f80b30ebe2c298c22dcc44860a075f7b41bf350236666

Download Submit
memory/584-0-0x0000000000170000-0x00000000001B4000-memory.dmp

Filesize
272KB

Download
memory/584-1-0x0000000000170000-0x00000000001B4000-memory.dmp

Filesize
272KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads