d98aab09f963cdc05a6c8e77bd0a75ab45075998b423c67b5edf59ee6371ae1b

Analysis

max time kernel
145s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
04/02/2024, 17:40

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General

Target

8fc24407671c79b675c98492ace8f104.exe
Size

14KB
MD5

8fc24407671c79b675c98492ace8f104
SHA1

ba12301c575c94aec20f5986d0550eb9c8825979
SHA256

d98aab09f963cdc05a6c8e77bd0a75ab45075998b423c67b5edf59ee6371ae1b
SHA512

b8f1e6369ab625d3540aeb40be0714637c674e5cb7bacde49d24b263f8dd10f78de20b690eaeebe1a67af47f2ae3975f502bc7fb6df79bdc3ceee0f4340749cc
SSDEEP

384:AZGxEZ5FT3Ntxk3Bj93qmmuxBxVppBYklN18ilvHM9QrTUU3WZ0zrze:DOZ5Bq3qm3xbpBYklL8iJkwIS/zne

Score

10^/10

persistence

Malware Config

Signatures

Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\zxeoddrq.dll = "{D3112B69-A745-4805-874E-ABD480EA1299}"	8fc24407671c79b675c98492ace8f104.exe

Loads dropped DLL 1 IoCs

pid	Process
3636	8fc24407671c79b675c98492ace8f104.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\zxeoddrq.nls	8fc24407671c79b675c98492ace8f104.exe

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D3112B69-A745-4805-874E-ABD480EA1299}	8fc24407671c79b675c98492ace8f104.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D3112B69-A745-4805-874E-ABD480EA1299}\InProcServer32	8fc24407671c79b675c98492ace8f104.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D3112B69-A745-4805-874E-ABD480EA1299}\InProcServer32\ = "C:\\Windows\\SysWow64\\zxeoddrq.dll"	8fc24407671c79b675c98492ace8f104.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D3112B69-A745-4805-874E-ABD480EA1299}\InProcServer32\ThreadingModel = "Apartment"	8fc24407671c79b675c98492ace8f104.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3636	8fc24407671c79b675c98492ace8f104.exe
3636	8fc24407671c79b675c98492ace8f104.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
3636	8fc24407671c79b675c98492ace8f104.exe
3636	8fc24407671c79b675c98492ace8f104.exe
3636	8fc24407671c79b675c98492ace8f104.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3636 wrote to memory of 1316	3636	8fc24407671c79b675c98492ace8f104.exe	93
PID 3636 wrote to memory of 1316	3636	8fc24407671c79b675c98492ace8f104.exe	93
PID 3636 wrote to memory of 1316	3636	8fc24407671c79b675c98492ace8f104.exe	93

C:\Users\Admin\AppData\Local\Temp\8fc24407671c79b675c98492ace8f104.exe
"C:\Users\Admin\AppData\Local\Temp\8fc24407671c79b675c98492ace8f104.exe"
1⤵
- Adds autorun key to be loaded by Explorer.exe on startup
- Loads dropped DLL
- Drops file in System32 directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3636
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\BC1C.tmp.bat
  2⤵
  PID:1316

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\BC1C.tmp.bat

Filesize
179B

MD5
de42ab264bf73f41d7b9ef3240c5f4ea

SHA1
79888c22ed30916cc13a4ab2d3cfc08ad1cfa98a

SHA256
0c72e28d7b1ef785b379037053fb48cc299f8230ee22de2347d7f8485a477871

SHA512
5b2bd34aec956f27d6f665a565a57bfaa8ac5bcf1a3bbf1868565ada4e81279c4073fc57fe03995b06779f782226a059d42b5a432e1d4e5589dc507d58f8587b

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

Filesize
2.2MB

MD5
a739ecabba6d6d1c1e6a6d832cde9cac

SHA1
d92068a1c25ab517d1705bc3e8b2d852de768f3e

SHA256
4eaf1b25b28a0c47b285bf389de0e4bfc235d8594402c08887846dd13fdfe83b

SHA512
f5921dbb565f70a096b946117afc88baf102b3ac934191c41cd5a468876569bf11d9079a141254907380bc83e3c0d46edf3e59369b3a475c0e07b61cffa8d3d8

Download Submit
C:\Windows\SysWOW64\zxeoddrq.nls

Filesize
428B

MD5
7e0c77eb9b53559c85289cc0490213f0

SHA1
ed052fcaa5fdd4770650882c289f68908fccc287

SHA256
0fb3c6508bbdbb6416f4b709204d666387acc7583c1eef488bbd87eb400bd426

SHA512
70896a7ab3317aa7838a4843cf2390f12e7ea7caea49eb62161a3dbd709688a1865a0f560bc527335d7aa2033bfd2ce33088daef2b7114e20f3a43ed8d3427c7

Download Submit
memory/3636-17-0x0000000010000000-0x000000001006C000-memory.dmp

Filesize
432KB

Download
memory/3636-21-0x0000000010000000-0x000000001006C000-memory.dmp

Filesize
432KB

Download