c8743bda3a8e2c20fe49fac6794fa1ecad0e092b1856a7546451ad448c04b81e

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01/01/2025, 14:21

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General

Target

c8743bda3a8e2c20fe49fac6794fa1ecad0e092b1856a7546451ad448c04b81e.dll
Size

1.3MB
MD5

41c1613d4f7d5461d08f6d81afe55cbc
SHA1

34201ce99d300b88c61bfeb1f1d106ea9fa5cdb3
SHA256

c8743bda3a8e2c20fe49fac6794fa1ecad0e092b1856a7546451ad448c04b81e
SHA512

9449ef03c4676efeb0ad6666edb27c032a1e08dc997ea4ca145805d3394aba67e7eb5262f1322e1bc19fbb82fa361dcec55073b8322ad234393ea081c7a17c25
SSDEEP

12288:Y9g8GZHpzAac5naAd25L5O+FQ7lW8lZ60ICPxaf6og38BfSH6gqrandxT+is3pj3:Y68+O6pvbt/wuzTB2OFi1O

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
816	rundll32mgr.exe

Loads dropped DLL 2 IoCs

pid	Process
1992	rundll32.exe
1992	rundll32.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
1984	1992	WerFault.exe	30

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32mgr.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
816	rundll32mgr.exe

Suspicious behavior: MapViewOfSection 26 IoCs

pid	Process
816	rundll32mgr.exe
816	rundll32mgr.exe
816	rundll32mgr.exe
816	rundll32mgr.exe
816	rundll32mgr.exe
816	rundll32mgr.exe
816	rundll32mgr.exe
816	rundll32mgr.exe
816	rundll32mgr.exe
816	rundll32mgr.exe
816	rundll32mgr.exe
816	rundll32mgr.exe
816	rundll32mgr.exe
816	rundll32mgr.exe
816	rundll32mgr.exe
816	rundll32mgr.exe
816	rundll32mgr.exe
816	rundll32mgr.exe
816	rundll32mgr.exe
816	rundll32mgr.exe
816	rundll32mgr.exe
816	rundll32mgr.exe
816	rundll32mgr.exe
816	rundll32mgr.exe
816	rundll32mgr.exe
816	rundll32mgr.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	816	rundll32mgr.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2116 wrote to memory of 1992	2116	rundll32.exe	30
PID 2116 wrote to memory of 1992	2116	rundll32.exe	30
PID 2116 wrote to memory of 1992	2116	rundll32.exe	30
PID 2116 wrote to memory of 1992	2116	rundll32.exe	30
PID 2116 wrote to memory of 1992	2116	rundll32.exe	30
PID 2116 wrote to memory of 1992	2116	rundll32.exe	30
PID 2116 wrote to memory of 1992	2116	rundll32.exe	30
PID 1992 wrote to memory of 816	1992	rundll32.exe	31
PID 1992 wrote to memory of 816	1992	rundll32.exe	31
PID 1992 wrote to memory of 816	1992	rundll32.exe	31
PID 1992 wrote to memory of 816	1992	rundll32.exe	31
PID 816 wrote to memory of 384	816	rundll32mgr.exe	3
PID 816 wrote to memory of 384	816	rundll32mgr.exe	3
PID 816 wrote to memory of 384	816	rundll32mgr.exe	3
PID 816 wrote to memory of 384	816	rundll32mgr.exe	3
PID 816 wrote to memory of 384	816	rundll32mgr.exe	3
PID 816 wrote to memory of 384	816	rundll32mgr.exe	3
PID 816 wrote to memory of 384	816	rundll32mgr.exe	3
PID 816 wrote to memory of 396	816	rundll32mgr.exe	4
PID 816 wrote to memory of 396	816	rundll32mgr.exe	4
PID 816 wrote to memory of 396	816	rundll32mgr.exe	4
PID 816 wrote to memory of 396	816	rundll32mgr.exe	4
PID 816 wrote to memory of 396	816	rundll32mgr.exe	4
PID 816 wrote to memory of 396	816	rundll32mgr.exe	4
PID 816 wrote to memory of 396	816	rundll32mgr.exe	4
PID 816 wrote to memory of 432	816	rundll32mgr.exe	5
PID 816 wrote to memory of 432	816	rundll32mgr.exe	5
PID 816 wrote to memory of 432	816	rundll32mgr.exe	5
PID 816 wrote to memory of 432	816	rundll32mgr.exe	5
PID 816 wrote to memory of 432	816	rundll32mgr.exe	5
PID 816 wrote to memory of 432	816	rundll32mgr.exe	5
PID 816 wrote to memory of 432	816	rundll32mgr.exe	5
PID 816 wrote to memory of 480	816	rundll32mgr.exe	6
PID 816 wrote to memory of 480	816	rundll32mgr.exe	6
PID 816 wrote to memory of 480	816	rundll32mgr.exe	6
PID 816 wrote to memory of 480	816	rundll32mgr.exe	6
PID 816 wrote to memory of 480	816	rundll32mgr.exe	6
PID 816 wrote to memory of 480	816	rundll32mgr.exe	6
PID 816 wrote to memory of 480	816	rundll32mgr.exe	6
PID 816 wrote to memory of 488	816	rundll32mgr.exe	7
PID 816 wrote to memory of 488	816	rundll32mgr.exe	7
PID 816 wrote to memory of 488	816	rundll32mgr.exe	7
PID 816 wrote to memory of 488	816	rundll32mgr.exe	7
PID 816 wrote to memory of 488	816	rundll32mgr.exe	7
PID 816 wrote to memory of 488	816	rundll32mgr.exe	7
PID 816 wrote to memory of 488	816	rundll32mgr.exe	7
PID 816 wrote to memory of 496	816	rundll32mgr.exe	8
PID 816 wrote to memory of 496	816	rundll32mgr.exe	8
PID 816 wrote to memory of 496	816	rundll32mgr.exe	8
PID 816 wrote to memory of 496	816	rundll32mgr.exe	8
PID 816 wrote to memory of 496	816	rundll32mgr.exe	8
PID 816 wrote to memory of 496	816	rundll32mgr.exe	8
PID 816 wrote to memory of 496	816	rundll32mgr.exe	8
PID 816 wrote to memory of 608	816	rundll32mgr.exe	9
PID 816 wrote to memory of 608	816	rundll32mgr.exe	9
PID 816 wrote to memory of 608	816	rundll32mgr.exe	9
PID 816 wrote to memory of 608	816	rundll32mgr.exe	9
PID 816 wrote to memory of 608	816	rundll32mgr.exe	9
PID 816 wrote to memory of 608	816	rundll32mgr.exe	9
PID 816 wrote to memory of 608	816	rundll32mgr.exe	9
PID 816 wrote to memory of 684	816	rundll32mgr.exe	10
PID 816 wrote to memory of 684	816	rundll32mgr.exe	10
PID 816 wrote to memory of 684	816	rundll32mgr.exe	10
PID 816 wrote to memory of 684	816	rundll32mgr.exe	10

C:\Windows\system32\wininit.exe
wininit.exe
1⤵
PID:384
- C:\Windows\system32\services.exe
  C:\Windows\system32\services.exe
  2⤵
  PID:480
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k DcomLaunch
    3⤵
    PID:608
  - - C:\Windows\system32\DllHost.exe
      C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
      4⤵
      PID:2040
  - - C:\Windows\system32\wbem\wmiprvse.exe
      C:\Windows\system32\wbem\wmiprvse.exe
      4⤵
      PID:1696
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k RPCSS
    3⤵
    PID:684
- - C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
    3⤵
    PID:748
- - C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
    3⤵
    PID:824
  - - C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      4⤵
      PID:1172
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k netsvcs
    3⤵
    PID:852
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalService
    3⤵
    PID:984
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k NetworkService
    3⤵
    PID:272
- - C:\Windows\System32\spoolsv.exe
    C:\Windows\System32\spoolsv.exe
    3⤵
    PID:300
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
    3⤵
    PID:1080
- - C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    3⤵
    PID:1116
- - C:\Program Files\Common Files\Microsoft Shared\OfficeSoftwareProtectionPlatform\OSPPSVC.EXE
    "C:\Program Files\Common Files\Microsoft Shared\OfficeSoftwareProtectionPlatform\OSPPSVC.EXE"
    3⤵
    PID:1232
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
    3⤵
    PID:2952
- - C:\Windows\system32\sppsvc.exe
    C:\Windows\system32\sppsvc.exe
    3⤵
    PID:2300
- C:\Windows\system32\lsass.exe
  C:\Windows\system32\lsass.exe
  2⤵
  PID:488
- C:\Windows\system32\lsm.exe
  C:\Windows\system32\lsm.exe
  2⤵
  PID:496

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:396

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:432

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1236
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\c8743bda3a8e2c20fe49fac6794fa1ecad0e092b1856a7546451ad448c04b81e.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2116
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\c8743bda3a8e2c20fe49fac6794fa1ecad0e092b1856a7546451ad448c04b81e.dll,#1
    3⤵
    - Loads dropped DLL
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1992
  - - C:\Windows\SysWOW64\rundll32mgr.exe
      C:\Windows\SysWOW64\rundll32mgr.exe
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:816
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1992 -s 228
      4⤵
      Program crash
      PID:1984

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\rundll32mgr.exe

Filesize
112KB

MD5
787f5a2f9878eecd525f0ca2f7f71749

SHA1
c0da1509885c34f2f40f6f557a366bba00d767b3

SHA256
a96ea157adae6d6e44274d0b27a68074e24afd21973123dbacf1e5325aeb4438

SHA512
306c9b2ce87ed7e5c8c7dd557927811bfe65dd49ae735a007e8189024376c5192bc5ef879a26d32e718746cc93b8343d05b6515c0a63fc85860a614dbb5b090d

Download Submit
memory/816-10-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1984-12-0x0000000077420000-0x0000000077421000-memory.dmp

Filesize
4KB

Download
memory/1992-9-0x0000000010000000-0x0000000010147000-memory.dmp

Filesize
1.3MB

Download
memory/1992-7-0x0000000010000000-0x0000000010147000-memory.dmp

Filesize
1.3MB

Download
memory/1992-15-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1992-14-0x000000007EFA0000-0x000000007EFAA000-memory.dmp

Filesize
40KB

Download
memory/1992-13-0x000000007741F000-0x0000000077420000-memory.dmp

Filesize
4KB

Download
memory/1992-11-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1992-16-0x000000007EFA0000-0x000000007EFAA000-memory.dmp

Filesize
40KB

Download