4b78178d8fe7696653f8aee864384730556531345bb637551e0f3a083c324b84

Analysis

max time kernel
43s
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, 20:04

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General

Target

4b78178d8fe7696653f8aee864384730556531345bb637551e0f3a083c324b84.dll
Size

278KB
MD5

6ff0b5ef91fe8763cc4e40b60047a750
SHA1

73b08fd3506980aba96945affbadf7e9f21994ff
SHA256

4b78178d8fe7696653f8aee864384730556531345bb637551e0f3a083c324b84
SHA512

ef0ad190b413a409b5369bf0ab75a4786e6d149f00d6fe64469e16fc9f6fb47ee7d9da37f7a77eac1c05331ce7029ef421c9f9b994eb432efef21fd4340b6c3b
SSDEEP

3072:DllbbTeGxZOkFUrmKnE914Y5ebUcRhf5tOhbGIe6v/HYNpTGtklDYHBcx:DllbbTekUnE914Y5eVh2Bd//MNlDYhcx

Score

8^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1072	rundll32mgr.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1072-64-0x0000000000400000-0x0000000000432000-memory.dmp	upx

Loads dropped DLL 4 IoCs

pid	Process
1916	rundll32.exe
1916	rundll32.exe
1072	rundll32mgr.exe
1072	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
1136	1916	WerFault.exe	27

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1072	rundll32mgr.exe

Suspicious behavior: MapViewOfSection 24 IoCs

pid	Process
1072	rundll32mgr.exe
1072	rundll32mgr.exe
1072	rundll32mgr.exe
1072	rundll32mgr.exe
1072	rundll32mgr.exe
1072	rundll32mgr.exe
1072	rundll32mgr.exe
1072	rundll32mgr.exe
1072	rundll32mgr.exe
1072	rundll32mgr.exe
1072	rundll32mgr.exe
1072	rundll32mgr.exe
1072	rundll32mgr.exe
1072	rundll32mgr.exe
1072	rundll32mgr.exe
1072	rundll32mgr.exe
1072	rundll32mgr.exe
1072	rundll32mgr.exe
1072	rundll32mgr.exe
1072	rundll32mgr.exe
1072	rundll32mgr.exe
1072	rundll32mgr.exe
1072	rundll32mgr.exe
1072	rundll32mgr.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1072	rundll32mgr.exe
Token: SeDebugPrivilege	1072	rundll32mgr.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1736 wrote to memory of 1916	1736	rundll32.exe	27
PID 1736 wrote to memory of 1916	1736	rundll32.exe	27
PID 1736 wrote to memory of 1916	1736	rundll32.exe	27
PID 1736 wrote to memory of 1916	1736	rundll32.exe	27
PID 1736 wrote to memory of 1916	1736	rundll32.exe	27
PID 1736 wrote to memory of 1916	1736	rundll32.exe	27
PID 1736 wrote to memory of 1916	1736	rundll32.exe	27
PID 1916 wrote to memory of 1072	1916	rundll32.exe	28
PID 1916 wrote to memory of 1072	1916	rundll32.exe	28
PID 1916 wrote to memory of 1072	1916	rundll32.exe	28
PID 1916 wrote to memory of 1072	1916	rundll32.exe	28
PID 1916 wrote to memory of 1136	1916	rundll32.exe	29
PID 1916 wrote to memory of 1136	1916	rundll32.exe	29
PID 1916 wrote to memory of 1136	1916	rundll32.exe	29
PID 1916 wrote to memory of 1136	1916	rundll32.exe	29
PID 1072 wrote to memory of 372	1072	rundll32mgr.exe	5
PID 1072 wrote to memory of 372	1072	rundll32mgr.exe	5
PID 1072 wrote to memory of 372	1072	rundll32mgr.exe	5
PID 1072 wrote to memory of 372	1072	rundll32mgr.exe	5
PID 1072 wrote to memory of 372	1072	rundll32mgr.exe	5
PID 1072 wrote to memory of 372	1072	rundll32mgr.exe	5
PID 1072 wrote to memory of 372	1072	rundll32mgr.exe	5
PID 1072 wrote to memory of 384	1072	rundll32mgr.exe	4
PID 1072 wrote to memory of 384	1072	rundll32mgr.exe	4
PID 1072 wrote to memory of 384	1072	rundll32mgr.exe	4
PID 1072 wrote to memory of 384	1072	rundll32mgr.exe	4
PID 1072 wrote to memory of 384	1072	rundll32mgr.exe	4
PID 1072 wrote to memory of 384	1072	rundll32mgr.exe	4
PID 1072 wrote to memory of 384	1072	rundll32mgr.exe	4
PID 1072 wrote to memory of 420	1072	rundll32mgr.exe	3
PID 1072 wrote to memory of 420	1072	rundll32mgr.exe	3
PID 1072 wrote to memory of 420	1072	rundll32mgr.exe	3
PID 1072 wrote to memory of 420	1072	rundll32mgr.exe	3
PID 1072 wrote to memory of 420	1072	rundll32mgr.exe	3
PID 1072 wrote to memory of 420	1072	rundll32mgr.exe	3
PID 1072 wrote to memory of 420	1072	rundll32mgr.exe	3
PID 1072 wrote to memory of 464	1072	rundll32mgr.exe	2
PID 1072 wrote to memory of 464	1072	rundll32mgr.exe	2
PID 1072 wrote to memory of 464	1072	rundll32mgr.exe	2
PID 1072 wrote to memory of 464	1072	rundll32mgr.exe	2
PID 1072 wrote to memory of 464	1072	rundll32mgr.exe	2
PID 1072 wrote to memory of 464	1072	rundll32mgr.exe	2
PID 1072 wrote to memory of 464	1072	rundll32mgr.exe	2
PID 1072 wrote to memory of 480	1072	rundll32mgr.exe	1
PID 1072 wrote to memory of 480	1072	rundll32mgr.exe	1
PID 1072 wrote to memory of 480	1072	rundll32mgr.exe	1
PID 1072 wrote to memory of 480	1072	rundll32mgr.exe	1
PID 1072 wrote to memory of 480	1072	rundll32mgr.exe	1
PID 1072 wrote to memory of 480	1072	rundll32mgr.exe	1
PID 1072 wrote to memory of 480	1072	rundll32mgr.exe	1
PID 1072 wrote to memory of 488	1072	rundll32mgr.exe	24
PID 1072 wrote to memory of 488	1072	rundll32mgr.exe	24
PID 1072 wrote to memory of 488	1072	rundll32mgr.exe	24
PID 1072 wrote to memory of 488	1072	rundll32mgr.exe	24
PID 1072 wrote to memory of 488	1072	rundll32mgr.exe	24
PID 1072 wrote to memory of 488	1072	rundll32mgr.exe	24
PID 1072 wrote to memory of 488	1072	rundll32mgr.exe	24
PID 1072 wrote to memory of 584	1072	rundll32mgr.exe	7
PID 1072 wrote to memory of 584	1072	rundll32mgr.exe	7
PID 1072 wrote to memory of 584	1072	rundll32mgr.exe	7
PID 1072 wrote to memory of 584	1072	rundll32mgr.exe	7
PID 1072 wrote to memory of 584	1072	rundll32mgr.exe	7
PID 1072 wrote to memory of 584	1072	rundll32mgr.exe	7
PID 1072 wrote to memory of 584	1072	rundll32mgr.exe	7

C:\Windows\system32\lsass.exe
C:\Windows\system32\lsass.exe
1⤵
PID:480

C:\Windows\system32\services.exe
C:\Windows\system32\services.exe
1⤵
PID:464
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k DcomLaunch
  2⤵
  PID:584
- C:\Windows\System32\svchost.exe
  C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
  2⤵
  PID:792
- - C:\Windows\system32\Dwm.exe
    "C:\Windows\system32\Dwm.exe"
    3⤵
    PID:1336
- C:\Windows\System32\spoolsv.exe
  C:\Windows\System32\spoolsv.exe
  2⤵
  PID:276
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
  2⤵
  PID:1780
- C:\Windows\system32\sppsvc.exe
  C:\Windows\system32\sppsvc.exe
  2⤵
  PID:1128
- C:\Windows\system32\taskhost.exe
  "taskhost.exe"
  2⤵
  PID:1240
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
  2⤵
  PID:1028
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k NetworkService
  2⤵
  PID:296
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k netsvcs
  2⤵
  PID:868
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k LocalService
  2⤵
  PID:828
- C:\Windows\System32\svchost.exe
  C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
  2⤵
  PID:716
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k RPCSS
  2⤵
  PID:660

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:420

C:\Windows\system32\csrss.exe
%SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,768 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=16
1⤵
PID:384

C:\Windows\system32\wininit.exe
wininit.exe
1⤵
PID:372
- C:\Windows\system32\lsm.exe
  C:\Windows\system32\lsm.exe
  2⤵
  PID:488

\\?\C:\Windows\system32\wbem\WMIADAP.EXE
wmiadap.exe /F /T /R
1⤵
PID:2004

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1392
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\4b78178d8fe7696653f8aee864384730556531345bb637551e0f3a083c324b84.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1736
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\4b78178d8fe7696653f8aee864384730556531345bb637551e0f3a083c324b84.dll,#1
    3⤵
    - Loads dropped DLL
    - Drops file in System32 directory
    - Suspicious use of WriteProcessMemory
    PID:1916
  - - C:\Windows\SysWOW64\rundll32mgr.exe
      C:\Windows\SysWOW64\rundll32mgr.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:1072
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1916 -s 224
      4⤵
      Program crash
      PID:1136

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Windows\SysWOW64\rundll32mgr.exe

Filesize
184KB

MD5
0d6f6da78e437412875464e46e481562

SHA1
868590d4e6c298fd47802690a8be6c26eacddf72

SHA256
8849dc1c6e796f1a979de33f8477c441ddf1bcb7588f9513e3d29641ea5e5012

SHA512
fbdea6d477f968f8b6c45886051c7d3b3430399ab7ee5596ddc1afed8ea28ad28718abe80f22862347a565facb798b23e8c2ddf8ba1a3905927b828b85856e76

Download Submit
\Users\Admin\AppData\Local\Temp\~TM945.tmp

Filesize
1.2MB

MD5
d124f55b9393c976963407dff51ffa79

SHA1
2c7bbedd79791bfb866898c85b504186db610b5d

SHA256
ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

SHA512
278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

Download Submit
\Users\Admin\AppData\Local\Temp\~TM965.tmp

Filesize
1.1MB

MD5
9b98d47916ead4f69ef51b56b0c2323c

SHA1
290a80b4ded0efc0fd00816f373fcea81a521330

SHA256
96e0ae104c9662d0d20fdf59844c2d18334e5847b6c4fc7f8ce4b3b87f39887b

SHA512
68b67021f228d8d71df4deb0b6388558b2f935a6aa466a12199cd37ada47ee588ea407b278d190d3a498b0ef3f5f1a2573a469b7ea5561ab2e7055c45565fe94

Download Submit
\Windows\SysWOW64\rundll32mgr.exe

Filesize
184KB

MD5
0d6f6da78e437412875464e46e481562

SHA1
868590d4e6c298fd47802690a8be6c26eacddf72

SHA256
8849dc1c6e796f1a979de33f8477c441ddf1bcb7588f9513e3d29641ea5e5012

SHA512
fbdea6d477f968f8b6c45886051c7d3b3430399ab7ee5596ddc1afed8ea28ad28718abe80f22862347a565facb798b23e8c2ddf8ba1a3905927b828b85856e76

Download Submit
\Windows\SysWOW64\rundll32mgr.exe

Filesize
184KB

MD5
0d6f6da78e437412875464e46e481562

SHA1
868590d4e6c298fd47802690a8be6c26eacddf72

SHA256
8849dc1c6e796f1a979de33f8477c441ddf1bcb7588f9513e3d29641ea5e5012

SHA512
fbdea6d477f968f8b6c45886051c7d3b3430399ab7ee5596ddc1afed8ea28ad28718abe80f22862347a565facb798b23e8c2ddf8ba1a3905927b828b85856e76

Download Submit
memory/1072-64-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1072-65-0x0000000000280000-0x00000000002B2000-memory.dmp

Filesize
200KB

Download
memory/1072-66-0x0000000077310000-0x0000000077490000-memory.dmp

Filesize
1.5MB

Download
memory/1136-71-0x000000007EFA0000-0x000000007EFAC000-memory.dmp

Filesize
48KB

Download
memory/1916-55-0x0000000075A81000-0x0000000075A83000-memory.dmp

Filesize
8KB

Download
memory/1916-67-0x0000000074180000-0x0000000074832000-memory.dmp

Filesize
6.7MB

Download
memory/1916-68-0x0000000073AC0000-0x0000000074172000-memory.dmp

Filesize
6.7MB

Download
memory/1916-69-0x0000000074180000-0x0000000074832000-memory.dmp

Filesize
6.7MB

Download
memory/1916-70-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download