7adad9ddbb7d2a67850f7eb3939b7bb3982ec79d842973539f0101a0e75a5294

Analysis

max time kernel
296s
max time network
457s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
25-11-2022 23:56

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General

Target

MirServer/LogServer/lpk.dll
Size

42KB
MD5

4d691ae646b320e04bc2f5db3c245eb4
SHA1

e55533b8f117ed5cf0248f633c0e7f69d5226df6
SHA256

ddf7073e755dd661565e8eb7b892372dc48a55fde09b1f07cda6e47ce7f8d650
SHA512

39f83db56c34c7a7f6d8dab0d2b073447276cb94dfd52c678fbd7a858c33de490fb1249d8d8c55114494fd1f01d07ca43defa210cc6926159c3a51e0f6992699
SSDEEP

768:ZojY9PqwzZNfYoMQxcttCIl1GRPKjECdVojY9P9:smlXPgtZTxECdAmF

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

Processes:

hrl5480.tmpvahxaq.exe

pid process

4048 hrl5480.tmp
2740 vahxaq.exe
Loads dropped DLL 1 IoCs

Processes:

vahxaq.exe

pid process

2740 vahxaq.exe

pid	process
4048	hrl5480.tmp
2740	vahxaq.exe

pid	process
2740	vahxaq.exe

Drops file in System32 directory 3 IoCs

Processes:

hrl5480.tmpvahxaq.exe

description	ioc	process
File created	C:\Windows\SysWOW64\vahxaq.exe	hrl5480.tmp
File opened for modification	C:\Windows\SysWOW64\vahxaq.exe	hrl5480.tmp
File created	C:\Windows\SysWOW64\hra33.dll	vahxaq.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

hrl5480.tmp

description pid process

Token: SeIncBasePriorityPrivilege 4048 hrl5480.tmp

description	pid	process
Token: SeIncBasePriorityPrivilege	4048	hrl5480.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

rundll32.exerundll32.exehrl5480.tmp

description	pid	process	target process
PID 4788 wrote to memory of 2420	4788	rundll32.exe	rundll32.exe
PID 4788 wrote to memory of 2420	4788	rundll32.exe	rundll32.exe
PID 4788 wrote to memory of 2420	4788	rundll32.exe	rundll32.exe
PID 2420 wrote to memory of 4048	2420	rundll32.exe	hrl5480.tmp
PID 2420 wrote to memory of 4048	2420	rundll32.exe	hrl5480.tmp
PID 2420 wrote to memory of 4048	2420	rundll32.exe	hrl5480.tmp
PID 4048 wrote to memory of 1680	4048	hrl5480.tmp	cmd.exe
PID 4048 wrote to memory of 1680	4048	hrl5480.tmp	cmd.exe
PID 4048 wrote to memory of 1680	4048	hrl5480.tmp	cmd.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\MirServer\LogServer\lpk.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4788
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\MirServer\LogServer\lpk.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2420
- - C:\Users\Admin\AppData\Local\Temp\hrl5480.tmp
    C:\Users\Admin\AppData\Local\Temp\hrl5480.tmp
    3⤵
    - Executes dropped EXE
    - Drops file in System32 directory
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4048
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\hrl5480.tmp > nul
      4⤵
      PID:1680

C:\Windows\SysWOW64\vahxaq.exe
C:\Windows\SysWOW64\vahxaq.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in System32 directory
PID:2740

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\hrl5480.tmp

Filesize
34KB

MD5
2d53ee91ed80e8a5a0134a7b7bc8097c

SHA1
a8df996004f0bae739b8d1a15a8fcc1d868d34e2

SHA256
88127c1ca940b5e087cb124f942761bffdefe2c73e4574570f1f914224083cf2

SHA512
ca70ee3311bd3b20f15776390fd3c5f0e438bba65669caf56e95cc94ed6ae17d4d7a9866908bfa5aa1732cd5fd56d269c4836b1754fdf718e3d6d8ea5a9e4e14

Download Submit
C:\Users\Admin\AppData\Local\Temp\hrl5480.tmp

Filesize
34KB

MD5
2d53ee91ed80e8a5a0134a7b7bc8097c

SHA1
a8df996004f0bae739b8d1a15a8fcc1d868d34e2

SHA256
88127c1ca940b5e087cb124f942761bffdefe2c73e4574570f1f914224083cf2

SHA512
ca70ee3311bd3b20f15776390fd3c5f0e438bba65669caf56e95cc94ed6ae17d4d7a9866908bfa5aa1732cd5fd56d269c4836b1754fdf718e3d6d8ea5a9e4e14

Download Submit
C:\Windows\SysWOW64\hra33.dll

Filesize
42KB

MD5
4d691ae646b320e04bc2f5db3c245eb4

SHA1
e55533b8f117ed5cf0248f633c0e7f69d5226df6

SHA256
ddf7073e755dd661565e8eb7b892372dc48a55fde09b1f07cda6e47ce7f8d650

SHA512
39f83db56c34c7a7f6d8dab0d2b073447276cb94dfd52c678fbd7a858c33de490fb1249d8d8c55114494fd1f01d07ca43defa210cc6926159c3a51e0f6992699

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

Filesize
34KB

MD5
2d53ee91ed80e8a5a0134a7b7bc8097c

SHA1
a8df996004f0bae739b8d1a15a8fcc1d868d34e2

SHA256
88127c1ca940b5e087cb124f942761bffdefe2c73e4574570f1f914224083cf2

SHA512
ca70ee3311bd3b20f15776390fd3c5f0e438bba65669caf56e95cc94ed6ae17d4d7a9866908bfa5aa1732cd5fd56d269c4836b1754fdf718e3d6d8ea5a9e4e14

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

Filesize
34KB

MD5
2d53ee91ed80e8a5a0134a7b7bc8097c

SHA1
a8df996004f0bae739b8d1a15a8fcc1d868d34e2

SHA256
88127c1ca940b5e087cb124f942761bffdefe2c73e4574570f1f914224083cf2

SHA512
ca70ee3311bd3b20f15776390fd3c5f0e438bba65669caf56e95cc94ed6ae17d4d7a9866908bfa5aa1732cd5fd56d269c4836b1754fdf718e3d6d8ea5a9e4e14

Download Submit
memory/1680-139-0x0000000000000000-mapping.dmp

Download
memory/2420-132-0x0000000000000000-mapping.dmp

Download
memory/4048-133-0x0000000000000000-mapping.dmp

Download