7bfef84764f5d57b1ba00f670219f75c7a8ca0b844f9710eaa93bab44b530234

Analysis

max time kernel
42s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
02/10/2022, 04:53

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General

Target

7bfef84764f5d57b1ba00f670219f75c7a8ca0b844f9710eaa93bab44b530234.dll
Size

158KB
MD5

67a68c92115703ee95fc076f473935f0
SHA1

a11269463e6258c85e7246d0dd59d482db33c8ed
SHA256

7bfef84764f5d57b1ba00f670219f75c7a8ca0b844f9710eaa93bab44b530234
SHA512

605e6bffa04981a1cc7325ff81e8595b6cd77162fe456e37201db410e0869a62d19182390cd25b89e7dc3def3951670670897da18877b72130a548f0c16a64a4
SSDEEP

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

Score

8^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1032	rundll32mgr.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1032-63-0x0000000000400000-0x000000000042C1D8-memory.dmp	upx

Loads dropped DLL 4 IoCs

pid	Process
1436	rundll32.exe
1436	rundll32.exe
1032	rundll32mgr.exe
1032	rundll32mgr.exe

Drops file in System32 directory 1 IoCs

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

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1604 wrote to memory of 1436	1604	rundll32.exe	27
PID 1604 wrote to memory of 1436	1604	rundll32.exe	27
PID 1604 wrote to memory of 1436	1604	rundll32.exe	27
PID 1604 wrote to memory of 1436	1604	rundll32.exe	27
PID 1604 wrote to memory of 1436	1604	rundll32.exe	27
PID 1604 wrote to memory of 1436	1604	rundll32.exe	27
PID 1604 wrote to memory of 1436	1604	rundll32.exe	27
PID 1436 wrote to memory of 1032	1436	rundll32.exe	28
PID 1436 wrote to memory of 1032	1436	rundll32.exe	28
PID 1436 wrote to memory of 1032	1436	rundll32.exe	28
PID 1436 wrote to memory of 1032	1436	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7bfef84764f5d57b1ba00f670219f75c7a8ca0b844f9710eaa93bab44b530234.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1604
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\7bfef84764f5d57b1ba00f670219f75c7a8ca0b844f9710eaa93bab44b530234.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:1436
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    PID:1032

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Windows\SysWOW64\rundll32mgr.exe

Filesize
97KB

MD5
ef5dc2521333fb418bd5518f1db3fd08

SHA1
3d5e8d6dbf09a599f674fe9d6c1d736b0c31cb70

SHA256
75bfc7c1f54f2579541c35f721a6bbd9083c7208bd989624ceb25f16bd03afbe

SHA512
8768e95f5539dc61350f552d575c683e20e000f41283701c9c5f393da40975a02a7d432374c72565f3e1848266ee94e20d905f62b849f91f3c956b7980d87882

Download Submit
\Users\Admin\AppData\Local\Temp\~TMFB60.tmp

Filesize
1.2MB

MD5
d124f55b9393c976963407dff51ffa79

SHA1
2c7bbedd79791bfb866898c85b504186db610b5d

SHA256
ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

SHA512
278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

Download Submit
\Users\Admin\AppData\Local\Temp\~TMFBDE.tmp

Filesize
1.1MB

MD5
9b98d47916ead4f69ef51b56b0c2323c

SHA1
290a80b4ded0efc0fd00816f373fcea81a521330

SHA256
96e0ae104c9662d0d20fdf59844c2d18334e5847b6c4fc7f8ce4b3b87f39887b

SHA512
68b67021f228d8d71df4deb0b6388558b2f935a6aa466a12199cd37ada47ee588ea407b278d190d3a498b0ef3f5f1a2573a469b7ea5561ab2e7055c45565fe94

Download Submit
\Windows\SysWOW64\rundll32mgr.exe

Filesize
97KB

MD5
ef5dc2521333fb418bd5518f1db3fd08

SHA1
3d5e8d6dbf09a599f674fe9d6c1d736b0c31cb70

SHA256
75bfc7c1f54f2579541c35f721a6bbd9083c7208bd989624ceb25f16bd03afbe

SHA512
8768e95f5539dc61350f552d575c683e20e000f41283701c9c5f393da40975a02a7d432374c72565f3e1848266ee94e20d905f62b849f91f3c956b7980d87882

Download Submit
\Windows\SysWOW64\rundll32mgr.exe

Filesize
97KB

MD5
ef5dc2521333fb418bd5518f1db3fd08

SHA1
3d5e8d6dbf09a599f674fe9d6c1d736b0c31cb70

SHA256
75bfc7c1f54f2579541c35f721a6bbd9083c7208bd989624ceb25f16bd03afbe

SHA512
8768e95f5539dc61350f552d575c683e20e000f41283701c9c5f393da40975a02a7d432374c72565f3e1848266ee94e20d905f62b849f91f3c956b7980d87882

Download Submit
memory/1032-63-0x0000000000400000-0x000000000042C1D8-memory.dmp

Filesize
176KB

Download
memory/1032-64-0x0000000000230000-0x000000000025D000-memory.dmp

Filesize
180KB

Download
memory/1032-65-0x0000000077000000-0x0000000077180000-memory.dmp

Filesize
1.5MB

Download
memory/1436-55-0x0000000075601000-0x0000000075603000-memory.dmp

Filesize
8KB

Download