ba03f3fa956f522dabcb3b06060af73b436d751b3c3565c751c3d0f5de759396

Analysis

max time kernel
106s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
01-10-2022 17:44

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General

Target

ba03f3fa956f522dabcb3b06060af73b436d751b3c3565c751c3d0f5de759396.dll
Size

344KB
MD5

7c2cdfd7cb0e7b7d948d5eebc52a70a0
SHA1

07e99a2f0acb7f4e60d5071daf63ddb5f39c782b
SHA256

ba03f3fa956f522dabcb3b06060af73b436d751b3c3565c751c3d0f5de759396
SHA512

16c46a52ad335454d8084939fd8a78f6d874f337eda8b8f127978943f803c4ba4c44749b51961a817694a2bdc44ae1faafdc79b58765527c8ae8e203104db016
SSDEEP

6144:mMD4Ry7pG8/EAFZbZb8ya17Fu8OZ5KKACC1GgN5nhd+gIa5:9D0y7R/bFZbZbm7AaClgygIa5

Score

8^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4884	rundll32mgr.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4884-138-0x0000000000400000-0x000000000042A000-memory.dmp	upx

Loads dropped DLL 1 IoCs

pid	Process
4884	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
1264	4884	WerFault.exe	86
944	3872	WerFault.exe	44

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2680 wrote to memory of 3872	2680	rundll32.exe	44
PID 2680 wrote to memory of 3872	2680	rundll32.exe	44
PID 2680 wrote to memory of 3872	2680	rundll32.exe	44
PID 3872 wrote to memory of 4884	3872	rundll32.exe	86
PID 3872 wrote to memory of 4884	3872	rundll32.exe	86
PID 3872 wrote to memory of 4884	3872	rundll32.exe	86

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ba03f3fa956f522dabcb3b06060af73b436d751b3c3565c751c3d0f5de759396.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2680
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ba03f3fa956f522dabcb3b06060af73b436d751b3c3565c751c3d0f5de759396.dll,#1
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:3872
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    PID:4884
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4884 -s 492
      4⤵
      Program crash
      PID:1264
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3872 -s 584
    3⤵
    - Program crash
    PID:944

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3872 -ip 3872
1⤵
PID:348

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 4884 -ip 4884
1⤵
PID:2708

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\~TMC837.tmp

Filesize
1.6MB

MD5
4f3387277ccbd6d1f21ac5c07fe4ca68

SHA1
e16506f662dc92023bf82def1d621497c8ab5890

SHA256
767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

SHA512
9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

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

Filesize
106KB

MD5
dcd2cafa72c9d5bd898b636a18133d3c

SHA1
b55e85453de9254cbf4c21c0de92d82c6deefccb

SHA256
936b14fbbf629fcf92ac06673d974de2b2a44a109953e6664e1c36a4e5c9d27c

SHA512
59e475f668015b3a6372d79ea6459b21ae591d73305b7696ef139fe0e716f1038595ea5df079e1850535e6358aef4d8e92bdee68ffd07b44471bc7133041952c

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

Filesize
106KB

MD5
dcd2cafa72c9d5bd898b636a18133d3c

SHA1
b55e85453de9254cbf4c21c0de92d82c6deefccb

SHA256
936b14fbbf629fcf92ac06673d974de2b2a44a109953e6664e1c36a4e5c9d27c

SHA512
59e475f668015b3a6372d79ea6459b21ae591d73305b7696ef139fe0e716f1038595ea5df079e1850535e6358aef4d8e92bdee68ffd07b44471bc7133041952c

Download Submit
memory/3872-132-0x0000000000000000-mapping.dmp

Download
memory/3872-137-0x00000000756F0000-0x000000007574A000-memory.dmp

Filesize
360KB

Download
memory/4884-133-0x0000000000000000-mapping.dmp

Download
memory/4884-139-0x00000000005A0000-0x00000000005CA000-memory.dmp

Filesize
168KB

Download
memory/4884-138-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/4884-140-0x0000000077C70000-0x0000000077E13000-memory.dmp

Filesize
1.6MB

Download