38a8d8a0d6f5af6d5df7bfd94a36e91dac25197c2ff55d033f10f29bec07eb8d

General

Target

029522376ad49125944d7c661f286977.exe
Size

248KB
MD5

029522376ad49125944d7c661f286977
SHA1

93005b0609113661d5f972a9de3d4ddec43777dd
SHA256

38a8d8a0d6f5af6d5df7bfd94a36e91dac25197c2ff55d033f10f29bec07eb8d
SHA512

17afc276897c450521fe9acb0f6018d89aaae10d0ef8eb4fe52db5231a02fb8517a09f9c4cc438f0c47f4fcfe4a592271d67cad5d661cbb9aa102f3a1cbcfbae
SSDEEP

6144:HiAvvtHLqg6yJWkV1KtpSnivGkAkanP6f3ZDW:CAvVHLqg6mV1r4hAJPCW

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Local\\9b7b7593\\X"	Explorer.EXE

Deletes itself 1 IoCs

pid	Process
2232	explorer.exe

Executes dropped EXE 2 IoCs

pid	Process
1996	X
336	csrss.exe

Loads dropped DLL 2 IoCs

pid	Process
2264	029522376ad49125944d7c661f286977.exe
2264	029522376ad49125944d7c661f286977.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2264 set thread context of 2232	2264	029522376ad49125944d7c661f286977.exe	18

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\registry\machine\Software\Classes\Interface\{1a74ef5b-e0c8-3427-8f23-6f47e43457d2}	explorer.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{1a74ef5b-e0c8-3427-8f23-6f47e43457d2}\u = "71"	explorer.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{1a74ef5b-e0c8-3427-8f23-6f47e43457d2}\cid = "3688728170719409707"	explorer.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1996	X
2232	explorer.exe
2232	explorer.exe
2232	explorer.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2232	explorer.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
336	csrss.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2264 wrote to memory of 2232	2264	029522376ad49125944d7c661f286977.exe	18
PID 2264 wrote to memory of 2232	2264	029522376ad49125944d7c661f286977.exe	18
PID 2264 wrote to memory of 2232	2264	029522376ad49125944d7c661f286977.exe	18
PID 2264 wrote to memory of 2232	2264	029522376ad49125944d7c661f286977.exe	18
PID 2264 wrote to memory of 2232	2264	029522376ad49125944d7c661f286977.exe	18
PID 2264 wrote to memory of 1996	2264	029522376ad49125944d7c661f286977.exe	19
PID 2264 wrote to memory of 1996	2264	029522376ad49125944d7c661f286977.exe	19
PID 2264 wrote to memory of 1996	2264	029522376ad49125944d7c661f286977.exe	19
PID 2264 wrote to memory of 1996	2264	029522376ad49125944d7c661f286977.exe	19
PID 1996 wrote to memory of 1196	1996	X	10
PID 2232 wrote to memory of 336	2232	explorer.exe	28
PID 336 wrote to memory of 2500	336	csrss.exe	30
PID 336 wrote to memory of 2500	336	csrss.exe	30
PID 336 wrote to memory of 2252	336	csrss.exe	31
PID 336 wrote to memory of 2252	336	csrss.exe	31

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies WinLogon for persistence
PID:1196
- C:\Users\Admin\AppData\Local\Temp\029522376ad49125944d7c661f286977.exe
  "C:\Users\Admin\AppData\Local\Temp\029522376ad49125944d7c661f286977.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2264
- - C:\Windows\explorer.exe
    000000D0*
    3⤵
    - Deletes itself
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2232
- - C:\Users\Admin\AppData\Local\9b7b7593\X
    193.105.154.210:80
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:1996

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⤵
- Executes dropped EXE
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:336

C:\Windows\system32\wbem\WMIADAP.EXE
wmiadap.exe /F /T /R
1⤵
PID:2500

C:\Windows\system32\wbem\wmiprvse.exe
C:\Windows\system32\wbem\wmiprvse.exe -Embedding
1⤵
PID:2252

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/336-42-0x0000000000E80000-0x0000000000E8C000-memory.dmp

Filesize
48KB

Download
memory/336-41-0x0000000000E80000-0x0000000000E8C000-memory.dmp

Filesize
48KB

Download
memory/1196-28-0x0000000002ED0000-0x0000000002EDB000-memory.dmp

Filesize
44KB

Download
memory/1196-36-0x0000000002EE0000-0x0000000002EEB000-memory.dmp

Filesize
44KB

Download
memory/1196-34-0x0000000002EE0000-0x0000000002EEB000-memory.dmp

Filesize
44KB

Download
memory/1196-33-0x0000000002EC0000-0x0000000002EC8000-memory.dmp

Filesize
32KB

Download
memory/1196-32-0x0000000002ED0000-0x0000000002EDB000-memory.dmp

Filesize
44KB

Download
memory/1196-43-0x0000000002EE0000-0x0000000002EEB000-memory.dmp

Filesize
44KB

Download
memory/1196-23-0x0000000002ED0000-0x0000000002EDB000-memory.dmp

Filesize
44KB

Download
memory/2232-16-0x0000000000170000-0x0000000000184000-memory.dmp

Filesize
80KB

Download
memory/2232-7-0x0000000000060000-0x0000000000072000-memory.dmp

Filesize
72KB

Download
memory/2232-4-0x0000000000170000-0x0000000000184000-memory.dmp

Filesize
80KB

Download
memory/2232-11-0x0000000000170000-0x0000000000184000-memory.dmp

Filesize
80KB

Download
memory/2264-3-0x0000000000400000-0x0000000000445070-memory.dmp

Filesize
276KB

Download
memory/2264-5-0x0000000000830000-0x0000000000930000-memory.dmp

Filesize
1024KB

Download
memory/2264-24-0x0000000000830000-0x0000000000930000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads