ccd886f017cf9e046e0657773d2fd1812d60e018066bae7fc57efa8d83058957

Analysis

max time kernel
154s
max time network
128s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
22-12-2023 16:31

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General

Target

f1b3ae7309941128248c9c15f6e44ee5.exe
Size

60KB
MD5

f1b3ae7309941128248c9c15f6e44ee5
SHA1

0c22b67a61c9cda73f3c978f71c470451e211e21
SHA256

ccd886f017cf9e046e0657773d2fd1812d60e018066bae7fc57efa8d83058957
SHA512

7aa6a3bd9ad31342361b76d991a5c6edf6ab57ead5c6c755096a3dcbe91f42ce44d289d07e14d645e1d1ad81cbb5cc914c0ce8dd558c7921d9f8f58b0dc62f3a
SSDEEP

1536:wgOzqIfhbp1pj7lsRD8tT/9SztLmuttq2vXlEws6dMETgQtewNhJ3FEPYPb1:wTsRD8mzPXlEwssMETg2fxjPb1

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-1-5-21-3308111660-3636268597-2291490419-1000\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
2100	f1b3ae7309941128248c9c15f6e44ee5.exe
1284	explorer.exe
1208	Explorer.EXE
2756	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2128 set thread context of 2100	2128	f1b3ae7309941128248c9c15f6e44ee5.exe	28

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2100	f1b3ae7309941128248c9c15f6e44ee5.exe
2100	f1b3ae7309941128248c9c15f6e44ee5.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe
2756	svchost.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
2100	f1b3ae7309941128248c9c15f6e44ee5.exe
2100	f1b3ae7309941128248c9c15f6e44ee5.exe

Suspicious use of FindShellTrayWindow 5 IoCs

pid	Process
1208	Explorer.EXE
1208	Explorer.EXE
1208	Explorer.EXE
1208	Explorer.EXE
2712	ctfmon.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
1208	Explorer.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2756	svchost.exe
2756	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 2100	2128	f1b3ae7309941128248c9c15f6e44ee5.exe	28
PID 2128 wrote to memory of 2100	2128	f1b3ae7309941128248c9c15f6e44ee5.exe	28
PID 2128 wrote to memory of 2100	2128	f1b3ae7309941128248c9c15f6e44ee5.exe	28
PID 2128 wrote to memory of 2100	2128	f1b3ae7309941128248c9c15f6e44ee5.exe	28
PID 2128 wrote to memory of 2100	2128	f1b3ae7309941128248c9c15f6e44ee5.exe	28
PID 2128 wrote to memory of 2100	2128	f1b3ae7309941128248c9c15f6e44ee5.exe	28
PID 2128 wrote to memory of 2100	2128	f1b3ae7309941128248c9c15f6e44ee5.exe	28
PID 2128 wrote to memory of 2100	2128	f1b3ae7309941128248c9c15f6e44ee5.exe	28
PID 2128 wrote to memory of 2100	2128	f1b3ae7309941128248c9c15f6e44ee5.exe	28
PID 2100 wrote to memory of 1284	2100	f1b3ae7309941128248c9c15f6e44ee5.exe	29
PID 2100 wrote to memory of 1284	2100	f1b3ae7309941128248c9c15f6e44ee5.exe	29
PID 2100 wrote to memory of 1284	2100	f1b3ae7309941128248c9c15f6e44ee5.exe	29
PID 2100 wrote to memory of 1284	2100	f1b3ae7309941128248c9c15f6e44ee5.exe	29
PID 1284 wrote to memory of 1208	1284	explorer.exe	11
PID 1208 wrote to memory of 2756	1208	Explorer.EXE	30
PID 1208 wrote to memory of 2756	1208	Explorer.EXE	30
PID 1208 wrote to memory of 2756	1208	Explorer.EXE	30
PID 1208 wrote to memory of 2756	1208	Explorer.EXE	30
PID 1208 wrote to memory of 2756	1208	Explorer.EXE	30
PID 2756 wrote to memory of 2712	2756	svchost.exe	31
PID 2756 wrote to memory of 2712	2756	svchost.exe	31
PID 2756 wrote to memory of 2712	2756	svchost.exe	31
PID 2756 wrote to memory of 2712	2756	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:1208
- C:\Users\Admin\AppData\Local\Temp\f1b3ae7309941128248c9c15f6e44ee5.exe
  "C:\Users\Admin\AppData\Local\Temp\f1b3ae7309941128248c9c15f6e44ee5.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2128
- - \??\c:\users\admin\appdata\local\temp\f1b3ae7309941128248c9c15f6e44ee5.exe
    "c:\users\admin\appdata\local\temp\f1b3ae7309941128248c9c15f6e44ee5.exe"
    3⤵
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:2100
  - - C:\Windows\explorer.exe
      "C:\Windows\explorer.exe"
      4⤵
      Suspicious use of NtSetInformationThreadHideFromDebugger
      Suspicious use of WriteProcessMemory
      PID:1284
- 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:2756
- - C:\Windows\SysWOW64\ctfmon.exe
    ctfmon.exe
    3⤵
    - Suspicious use of FindShellTrayWindow
    PID:2712

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/1208-15-0x0000000002A00000-0x0000000002A09000-memory.dmp

Filesize
36KB

Download
memory/1284-18-0x00000000FF590000-0x00000000FF850000-memory.dmp

Filesize
2.8MB

Download
memory/1284-20-0x0000000000030000-0x0000000000040000-memory.dmp

Filesize
64KB

Download
memory/2100-7-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2100-14-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2100-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2100-11-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2100-12-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2100-13-0x0000000077450000-0x0000000077451000-memory.dmp

Filesize
4KB

Download
memory/2100-5-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2100-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2100-16-0x0000000077450000-0x0000000077451000-memory.dmp

Filesize
4KB

Download
memory/2100-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2100-0-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2756-22-0x0000000000080000-0x0000000000089000-memory.dmp

Filesize
36KB

Download
memory/2756-28-0x0000000000080000-0x0000000000089000-memory.dmp

Filesize
36KB

Download
memory/2756-31-0x0000000000080000-0x0000000000089000-memory.dmp

Filesize
36KB

Download