2fb9eb1508f0bf4ff36993e56cb45329def23ef6eed215a09e2f3715f6e467a1

Analysis

max time kernel
144s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
13/01/2024, 12:23

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General

Target

58e8762d00486fa09a0b924601f87851.exe
Size

14KB
MD5

58e8762d00486fa09a0b924601f87851
SHA1

ebcf1d5e36cad6272aa2c49cbace19834e3f949a
SHA256

2fb9eb1508f0bf4ff36993e56cb45329def23ef6eed215a09e2f3715f6e467a1
SHA512

71eadc0808e55f93ace5d49947da21f8b2be10ce7c235f14dcad6b12375e718caece23d964fdfbbe1920a6be55a85c8b57b5d4bf078dd52d0f18a9c61059269d
SSDEEP

384:emWDlkSA2Ji8MJpHX7P8dE00zK2Ge3jnlc4eYsel:emQfKpHuEZzKZcrlcjYvl

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\adsntzt.dll = "{E0F3526A-4165-4589-80CD-50B6FBAC3BDA}"	58e8762d00486fa09a0b924601f87851.exe

Loads dropped DLL 1 IoCs

pid	Process
4616	58e8762d00486fa09a0b924601f87851.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\adsntzt.tmp	58e8762d00486fa09a0b924601f87851.exe
File opened for modification	C:\Windows\SysWOW64\adsntzt.tmp	58e8762d00486fa09a0b924601f87851.exe

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E0F3526A-4165-4589-80CD-50B6FBAC3BDA}\InProcServer32	58e8762d00486fa09a0b924601f87851.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E0F3526A-4165-4589-80CD-50B6FBAC3BDA}\InProcServer32\ = "C:\\Windows\\SysWow64\\adsntzt.dll"	58e8762d00486fa09a0b924601f87851.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E0F3526A-4165-4589-80CD-50B6FBAC3BDA}\InProcServer32\ThreadingModel = "Apartment"	58e8762d00486fa09a0b924601f87851.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E0F3526A-4165-4589-80CD-50B6FBAC3BDA}	58e8762d00486fa09a0b924601f87851.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4616	58e8762d00486fa09a0b924601f87851.exe
4616	58e8762d00486fa09a0b924601f87851.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
4616	58e8762d00486fa09a0b924601f87851.exe
4616	58e8762d00486fa09a0b924601f87851.exe
4616	58e8762d00486fa09a0b924601f87851.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4616 wrote to memory of 2348	4616	58e8762d00486fa09a0b924601f87851.exe	101
PID 4616 wrote to memory of 2348	4616	58e8762d00486fa09a0b924601f87851.exe	101
PID 4616 wrote to memory of 2348	4616	58e8762d00486fa09a0b924601f87851.exe	101

C:\Users\Admin\AppData\Local\Temp\58e8762d00486fa09a0b924601f87851.exe
"C:\Users\Admin\AppData\Local\Temp\58e8762d00486fa09a0b924601f87851.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:4616
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\C553.tmp.bat
  2⤵
  PID:2348

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\C553.tmp.bat

Filesize
179B

MD5
ceab7ba67dcfd806a2ead607d24ed171

SHA1
37cb8f02a90df806e7586b97824ffd48eabce917

SHA256
972b0f0dd3717a7f7dd4807589803f84764a958fa841e3e8c91d8bd13aef50aa

SHA512
e269e902fc30afbeae36508f85b98bddd5acec64b5bcdc927d74ac8e209adaf6bd142f4e2095df7d66282a5ff5642048998edca203af08c30a11409e66d79420

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

Filesize
1.0MB

MD5
50fc46b0de7ddcf686e7010e2c056b10

SHA1
04fe9defcbca95d60639b89deaba8dfaae49f0bc

SHA256
e2a4fd9a57ffb31de5168843e19d2fe81c7cf4cbed2db1138486fa3e161c1075

SHA512
3d89b8943a2ed5217d7abe45ab87b2e954b8bef9dfc084d86c15884cdff9c279d137f17677e8cf559a9ca13ddb043f5f10a05d8bb9401e92506ddb778450ff51

Download Submit
memory/4616-6-0x0000000020000000-0x0000000020008000-memory.dmp

Filesize
32KB

Download
memory/4616-10-0x0000000020000000-0x0000000020008000-memory.dmp

Filesize
32KB

Download