ba358fb8bacd10d384e15db392a5fe3840e400976c102d4f7b4e6a8b4cdfadff

Analysis

max time kernel
126s
max time network
146s
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, 04:49

Target

ba358fb8bacd10d384e15db392a5fe3840e400976c102d4f7b4e6a8b4cdfadff.dll
Size

505KB
MD5

663f690d355c1aa1436f484514d7c4a0
SHA1

777b2cec38f3282668d10050e67b36313fba28db
SHA256

ba358fb8bacd10d384e15db392a5fe3840e400976c102d4f7b4e6a8b4cdfadff
SHA512

f6578828fc8b9b7f77c4b2ee025393260f6bd95a92c0f5e104a8750d89de8b537dc0aa044107c04dc13e5583a4489f93ee49a9c260c7523f8c37e08cf7f87765
SSDEEP

12288:PYM8x5whQHnT3Ou0CY6pMiRJqq0ORi7YuxZB:PYMjqqqjSYu7B

Score

8^/10

upx

Executes dropped EXE 1 IoCs

pid	Process
3636	rundll32mgr.exe

UPX packed file 1 IoCs

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

resource	yara_rule
behavioral2/memory/3636-137-0x0000000000400000-0x000000000042A000-memory.dmp	upx

Loads dropped DLL 1 IoCs

pid	Process
3636	rundll32mgr.exe

Drops file in System32 directory 1 IoCs

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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2760	3636	WerFault.exe	83

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2900 wrote to memory of 4372	2900	rundll32.exe	81
PID 2900 wrote to memory of 4372	2900	rundll32.exe	81
PID 2900 wrote to memory of 4372	2900	rundll32.exe	81
PID 4372 wrote to memory of 3636	4372	rundll32.exe	83
PID 4372 wrote to memory of 3636	4372	rundll32.exe	83
PID 4372 wrote to memory of 3636	4372	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ba358fb8bacd10d384e15db392a5fe3840e400976c102d4f7b4e6a8b4cdfadff.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2900
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ba358fb8bacd10d384e15db392a5fe3840e400976c102d4f7b4e6a8b4cdfadff.dll,#1
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:4372
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    PID:3636
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3636 -s 528
      4⤵
      Program crash
      PID:2760

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3636 -ip 3636
1⤵
PID:1908

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

Filesize
1.6MB

MD5
4f3387277ccbd6d1f21ac5c07fe4ca68

SHA1
e16506f662dc92023bf82def1d621497c8ab5890

SHA256
767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

SHA512
9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

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

Filesize
106KB

MD5
7657fcb7d772448a6d8504e4b20168b8

SHA1
84c7201f7e59cb416280fd69a2e7f2e349ec8242

SHA256
54bc950d46a0d1aa72048a17c8275743209e6c17bdacfc4cb9601c9ce3ec9a71

SHA512
786addd2a793bd4123625b22dc717d193246442ac97f1c3f4a763ec794b48e68051cd41097c0e9f7367e6914534f36eafccb109ab03dc793d68bf1522e7884e2

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

Filesize
106KB

MD5
7657fcb7d772448a6d8504e4b20168b8

SHA1
84c7201f7e59cb416280fd69a2e7f2e349ec8242

SHA256
54bc950d46a0d1aa72048a17c8275743209e6c17bdacfc4cb9601c9ce3ec9a71

SHA512
786addd2a793bd4123625b22dc717d193246442ac97f1c3f4a763ec794b48e68051cd41097c0e9f7367e6914534f36eafccb109ab03dc793d68bf1522e7884e2

Download Submit
memory/3636-137-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/3636-138-0x0000000000590000-0x00000000005BA000-memory.dmp

Filesize
168KB

Download
memory/3636-139-0x0000000077980000-0x0000000077B23000-memory.dmp

Filesize
1.6MB

Download
memory/3636-140-0x0000000077980000-0x0000000077B23000-memory.dmp

Filesize
1.6MB

Download