f808d95e0a6b80c4bfff4b993c7106ae31f449d2f47927ed18baed94bb294cd8

Analysis

max time kernel
92s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
02/10/2022, 19:51

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General

Target

f808d95e0a6b80c4bfff4b993c7106ae31f449d2f47927ed18baed94bb294cd8.dll
Size

235KB
MD5

67650a95256d69e7dbd5e5d7ac5405f0
SHA1

510971947e210fec9f8a03c263c492d7c20a55b2
SHA256

f808d95e0a6b80c4bfff4b993c7106ae31f449d2f47927ed18baed94bb294cd8
SHA512

e0fe780bf9fff841942abdcbc3c07010f10ed72c390560a9d0defa8b43471f371303b5d257bca8f65ff850d2c6b922f3c153afbd85f16839eb23e8fede05ee97
SSDEEP

6144:jFEf9+t57IMldmpN+EE3+byqHEalxggprkkorwNu3:jF29w57IMDmE1YEaXggp2wI

Score

8^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4304	rundll32mgr.exe

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4304-137-0x0000000000400000-0x000000000042A000-memory.dmp	upx

Loads dropped DLL 1 IoCs

pid	Process
4304	rundll32mgr.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32mgr.exe	rundll32.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
544	4304	WerFault.exe	84
488	4364	WerFault.exe	83

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1396 wrote to memory of 4364	1396	rundll32.exe	83
PID 1396 wrote to memory of 4364	1396	rundll32.exe	83
PID 1396 wrote to memory of 4364	1396	rundll32.exe	83
PID 4364 wrote to memory of 4304	4364	rundll32.exe	84
PID 4364 wrote to memory of 4304	4364	rundll32.exe	84
PID 4364 wrote to memory of 4304	4364	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f808d95e0a6b80c4bfff4b993c7106ae31f449d2f47927ed18baed94bb294cd8.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1396
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\f808d95e0a6b80c4bfff4b993c7106ae31f449d2f47927ed18baed94bb294cd8.dll,#1
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:4364
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    PID:4304
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4304 -s 480
      4⤵
      Program crash
      PID:544
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4364 -s 660
    3⤵
    - Program crash
    PID:488

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4364 -ip 4364
1⤵
PID:4624

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4304 -ip 4304
1⤵
PID:1076

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\~TM129.tmp

Filesize
1.6MB

MD5
4f3387277ccbd6d1f21ac5c07fe4ca68

SHA1
e16506f662dc92023bf82def1d621497c8ab5890

SHA256
767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

SHA512
9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

Download Submit
C:\Windows\SysWOW64\rundll32mgr.exe

Filesize
106KB

MD5
fe36fb1073e6f8fa14d7250501a29aaf

SHA1
6c7e01278362797dabcff3e666b68227cb9af10f

SHA256
f34e5af97ccb3574f7d5343246138daf979bfd1f9c37590e9a41f6420ddb3bb6

SHA512
8584c008c5780352f634c37b7f46543a26280b57577b675f6e72185bfc1d95f771d210d799d704eceaba509ebfd2796fb43829495d5b2a568c741ad2d44f882f

Download Submit
C:\Windows\SysWOW64\rundll32mgr.exe

Filesize
106KB

MD5
fe36fb1073e6f8fa14d7250501a29aaf

SHA1
6c7e01278362797dabcff3e666b68227cb9af10f

SHA256
f34e5af97ccb3574f7d5343246138daf979bfd1f9c37590e9a41f6420ddb3bb6

SHA512
8584c008c5780352f634c37b7f46543a26280b57577b675f6e72185bfc1d95f771d210d799d704eceaba509ebfd2796fb43829495d5b2a568c741ad2d44f882f

Download Submit
memory/4304-137-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/4304-138-0x0000000000580000-0x00000000005AA000-memory.dmp

Filesize
168KB

Download
memory/4304-140-0x0000000077B90000-0x0000000077D33000-memory.dmp

Filesize
1.6MB

Download
memory/4364-133-0x0000000075630000-0x0000000075670000-memory.dmp

Filesize
256KB

Download
memory/4364-141-0x0000000075630000-0x0000000075670000-memory.dmp

Filesize
256KB

Download