7bfef84764f5d57b1ba00f670219f75c7a8ca0b844f9710eaa93bab44b530234

Analysis

max time kernel
92s
max time network
106s
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, 04:53

Target

7bfef84764f5d57b1ba00f670219f75c7a8ca0b844f9710eaa93bab44b530234.dll
Size

158KB
MD5

67a68c92115703ee95fc076f473935f0
SHA1

a11269463e6258c85e7246d0dd59d482db33c8ed
SHA256

7bfef84764f5d57b1ba00f670219f75c7a8ca0b844f9710eaa93bab44b530234
SHA512

605e6bffa04981a1cc7325ff81e8595b6cd77162fe456e37201db410e0869a62d19182390cd25b89e7dc3def3951670670897da18877b72130a548f0c16a64a4
SSDEEP

3072:eY/GoRGJsP9VZTsy53oa9v628ni3u/GLVz/6Kb5thVjOQY0fNH:5tTsy5319v6Lni3E8VLRb5ThOOfp

Score

8^/10

upx

Executes dropped EXE 1 IoCs

pid	Process
2740	rundll32mgr.exe

UPX packed file 1 IoCs

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

resource	yara_rule
behavioral2/memory/2740-138-0x0000000000400000-0x000000000042C1D8-memory.dmp	upx

Loads dropped DLL 1 IoCs

pid	Process
2740	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
1860	2740	WerFault.exe	83

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4924 wrote to memory of 4936	4924	rundll32.exe	82
PID 4924 wrote to memory of 4936	4924	rundll32.exe	82
PID 4924 wrote to memory of 4936	4924	rundll32.exe	82
PID 4936 wrote to memory of 2740	4936	rundll32.exe	83
PID 4936 wrote to memory of 2740	4936	rundll32.exe	83
PID 4936 wrote to memory of 2740	4936	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7bfef84764f5d57b1ba00f670219f75c7a8ca0b844f9710eaa93bab44b530234.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4924
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\7bfef84764f5d57b1ba00f670219f75c7a8ca0b844f9710eaa93bab44b530234.dll,#1
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:4936
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    PID:2740
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2740 -s 10168
      4⤵
      Program crash
      PID:1860

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 396 -p 2740 -ip 2740
1⤵
PID:1580

C:\Users\Admin\AppData\Local\Temp\~TMF707.tmp

Filesize
1.6MB

MD5
4f3387277ccbd6d1f21ac5c07fe4ca68

SHA1
e16506f662dc92023bf82def1d621497c8ab5890

SHA256
767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

SHA512
9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

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

Filesize
97KB

MD5
ef5dc2521333fb418bd5518f1db3fd08

SHA1
3d5e8d6dbf09a599f674fe9d6c1d736b0c31cb70

SHA256
75bfc7c1f54f2579541c35f721a6bbd9083c7208bd989624ceb25f16bd03afbe

SHA512
8768e95f5539dc61350f552d575c683e20e000f41283701c9c5f393da40975a02a7d432374c72565f3e1848266ee94e20d905f62b849f91f3c956b7980d87882

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

Filesize
97KB

MD5
ef5dc2521333fb418bd5518f1db3fd08

SHA1
3d5e8d6dbf09a599f674fe9d6c1d736b0c31cb70

SHA256
75bfc7c1f54f2579541c35f721a6bbd9083c7208bd989624ceb25f16bd03afbe

SHA512
8768e95f5539dc61350f552d575c683e20e000f41283701c9c5f393da40975a02a7d432374c72565f3e1848266ee94e20d905f62b849f91f3c956b7980d87882

Download Submit
memory/2740-138-0x0000000000400000-0x000000000042C1D8-memory.dmp

Filesize
176KB

Download
memory/2740-139-0x00000000006C0000-0x00000000006ED000-memory.dmp

Filesize
180KB

Download
memory/2740-140-0x0000000077160000-0x0000000077303000-memory.dmp

Filesize
1.6MB

Download
memory/4936-133-0x0000000010000000-0x000000001002B000-memory.dmp

Filesize
172KB

Download