56b762d3989877a02776e05d641b8d81c8631393a422603536a6b8f1cec07ef7

Analysis

max time kernel
151s
max time network
123s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25-12-2023 18:57

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General

Target

362a77fa246c879615ac3a040272dda5.exe
Size

69KB
MD5

362a77fa246c879615ac3a040272dda5
SHA1

5d1d481aa60f80798dd2be02f67dc04d98214a42
SHA256

56b762d3989877a02776e05d641b8d81c8631393a422603536a6b8f1cec07ef7
SHA512

5249bff5c58c9bf9897e04eabb48e608d2b742697abe4c921658511bf81c052141a5a910b9d4fda10f00b3df15a04455a003aef11453a7689da8b6f1eb6cafac
SSDEEP

1536:+g3j2ALadLHma+gqMhFebVa9eB+FBNq0kwM7T5IT:+gzCdLGa+gqMh8MES7kFv5O

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-1-5-21-452311807-3713411997-1028535425-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\msconfig.dat"	svchost.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

pid	Process
1388	362a77fa246c879615ac3a040272dda5.exe
2420	explorer.exe
1244	Explorer.EXE
2692	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3024 set thread context of 1388	3024	362a77fa246c879615ac3a040272dda5.exe	28

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1388	362a77fa246c879615ac3a040272dda5.exe
1388	362a77fa246c879615ac3a040272dda5.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
1388	362a77fa246c879615ac3a040272dda5.exe
1388	362a77fa246c879615ac3a040272dda5.exe

Suspicious use of FindShellTrayWindow 5 IoCs

pid	Process
1244	Explorer.EXE
1244	Explorer.EXE
1244	Explorer.EXE
1244	Explorer.EXE
2816	ctfmon.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
1244	Explorer.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2692	svchost.exe
2692	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3024 wrote to memory of 1388	3024	362a77fa246c879615ac3a040272dda5.exe	28
PID 3024 wrote to memory of 1388	3024	362a77fa246c879615ac3a040272dda5.exe	28
PID 3024 wrote to memory of 1388	3024	362a77fa246c879615ac3a040272dda5.exe	28
PID 3024 wrote to memory of 1388	3024	362a77fa246c879615ac3a040272dda5.exe	28
PID 3024 wrote to memory of 1388	3024	362a77fa246c879615ac3a040272dda5.exe	28
PID 3024 wrote to memory of 1388	3024	362a77fa246c879615ac3a040272dda5.exe	28
PID 3024 wrote to memory of 1388	3024	362a77fa246c879615ac3a040272dda5.exe	28
PID 3024 wrote to memory of 1388	3024	362a77fa246c879615ac3a040272dda5.exe	28
PID 3024 wrote to memory of 1388	3024	362a77fa246c879615ac3a040272dda5.exe	28
PID 1388 wrote to memory of 2420	1388	362a77fa246c879615ac3a040272dda5.exe	29
PID 1388 wrote to memory of 2420	1388	362a77fa246c879615ac3a040272dda5.exe	29
PID 1388 wrote to memory of 2420	1388	362a77fa246c879615ac3a040272dda5.exe	29
PID 1388 wrote to memory of 2420	1388	362a77fa246c879615ac3a040272dda5.exe	29
PID 2420 wrote to memory of 1244	2420	explorer.exe	12
PID 1244 wrote to memory of 2692	1244	Explorer.EXE	30
PID 1244 wrote to memory of 2692	1244	Explorer.EXE	30
PID 1244 wrote to memory of 2692	1244	Explorer.EXE	30
PID 1244 wrote to memory of 2692	1244	Explorer.EXE	30
PID 1244 wrote to memory of 2692	1244	Explorer.EXE	30
PID 2692 wrote to memory of 2816	2692	svchost.exe	31
PID 2692 wrote to memory of 2816	2692	svchost.exe	31
PID 2692 wrote to memory of 2816	2692	svchost.exe	31
PID 2692 wrote to memory of 2816	2692	svchost.exe	31

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1244
- C:\Users\Admin\AppData\Local\Temp\362a77fa246c879615ac3a040272dda5.exe
  "C:\Users\Admin\AppData\Local\Temp\362a77fa246c879615ac3a040272dda5.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:3024
- - C:\Users\Admin\AppData\Local\Temp\362a77fa246c879615ac3a040272dda5.exe
    "C:\Users\Admin\AppData\Local\Temp\362a77fa246c879615ac3a040272dda5.exe"
    3⤵
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:1388
  - - C:\Windows\explorer.exe
      "C:\Windows\explorer.exe"
      4⤵
      Suspicious use of NtSetInformationThreadHideFromDebugger
      Suspicious use of WriteProcessMemory
      PID:2420
- C:\Windows\syswow64\svchost.exe
  "C:\Windows\syswow64\svchost.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2692
- - C:\Windows\SysWOW64\ctfmon.exe
    ctfmon.exe
    3⤵
    - Suspicious use of FindShellTrayWindow
    PID:2816

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1244-20-0x0000000002B30000-0x0000000002B39000-memory.dmp

Filesize
36KB

Download
memory/1388-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1388-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1388-18-0x0000000077590000-0x0000000077591000-memory.dmp

Filesize
4KB

Download
memory/1388-6-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1388-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1388-12-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1388-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1388-15-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1388-19-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1388-17-0x0000000077590000-0x0000000077591000-memory.dmp

Filesize
4KB

Download
memory/1388-1-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2420-27-0x0000000000030000-0x0000000000040000-memory.dmp

Filesize
64KB

Download
memory/2420-22-0x00000000FF8F0000-0x00000000FFBB0000-memory.dmp

Filesize
2.8MB

Download
memory/2692-30-0x0000000000080000-0x0000000000089000-memory.dmp

Filesize
36KB

Download
memory/2692-25-0x0000000000080000-0x0000000000089000-memory.dmp

Filesize
36KB

Download
memory/2692-33-0x0000000000080000-0x0000000000089000-memory.dmp

Filesize
36KB

Download
memory/2692-44-0x0000000000080000-0x0000000000089000-memory.dmp

Filesize
36KB

Download
memory/2692-59-0x0000000000080000-0x0000000000089000-memory.dmp

Filesize
36KB

Download
memory/3024-0-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3024-13-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3024-4-0x0000000000350000-0x0000000000367000-memory.dmp

Filesize
92KB

Download