fc32d6d2d68e49c6305d3968dc16198babbc44a14fc09d846b27fbadf29dbe9b

Analysis

max time kernel
150s
max time network
120s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
24-08-2024 06:19

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General

Target

fc32d6d2d68e49c6305d3968dc16198babbc44a14fc09d846b27fbadf29dbe9b.exe
Size

135KB
MD5

56d1433864ff895e13e9aafdd6efa07b
SHA1

cbaf83cc38f333a0366627d339a96aedf615195f
SHA256

fc32d6d2d68e49c6305d3968dc16198babbc44a14fc09d846b27fbadf29dbe9b
SHA512

ba88460f70ff34dcac00fe5455c4d121ad312ae6e78fcd1afa5dd63ac6467a69c936cc9ed55740beef026a5b9975e717b74d539a964b46f00fac83f7caa554d6
SSDEEP

1536:XfsEqouTRcG/Mzvgf7xEuvnXNTRdUzwTekUOisZ1yDDajtXbggiJ9:XVqoCl/YgjxEufVU0TbTyDDalRY9

Score

10^/10

discovery evasion persistence

Malware Config

Signatures

Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe

Executes dropped EXE 4 IoCs

pid	Process
1356	explorer.exe
2100	spoolsv.exe
2412	svchost.exe
2700	spoolsv.exe

Loads dropped DLL 4 IoCs

pid	Process
2156	fc32d6d2d68e49c6305d3968dc16198babbc44a14fc09d846b27fbadf29dbe9b.exe
1356	explorer.exe
2100	spoolsv.exe
2412	svchost.exe

Adds Run key to start application 2 TTPs 4 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\RunOnce\Explorer = "c:\\windows\\resources\\themes\\explorer.exe RO"	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\resources\\svchost.exe RO"	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\resources\\themes\\explorer.exe RO"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\resources\\svchost.exe RO"	svchost.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\explorer.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\explorer.exe	explorer.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\windows\resources\spoolsv.exe	explorer.exe
File opened for modification	\??\c:\windows\resources\svchost.exe	spoolsv.exe
File opened for modification	C:\Windows\Resources\tjud.exe	explorer.exe
File opened for modification	\??\c:\windows\resources\themes\explorer.exe	fc32d6d2d68e49c6305d3968dc16198babbc44a14fc09d846b27fbadf29dbe9b.exe

System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fc32d6d2d68e49c6305d3968dc16198babbc44a14fc09d846b27fbadf29dbe9b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2760	schtasks.exe
1688	schtasks.exe
1968	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2156	fc32d6d2d68e49c6305d3968dc16198babbc44a14fc09d846b27fbadf29dbe9b.exe
2156	fc32d6d2d68e49c6305d3968dc16198babbc44a14fc09d846b27fbadf29dbe9b.exe
2156	fc32d6d2d68e49c6305d3968dc16198babbc44a14fc09d846b27fbadf29dbe9b.exe
2156	fc32d6d2d68e49c6305d3968dc16198babbc44a14fc09d846b27fbadf29dbe9b.exe
2156	fc32d6d2d68e49c6305d3968dc16198babbc44a14fc09d846b27fbadf29dbe9b.exe
2156	fc32d6d2d68e49c6305d3968dc16198babbc44a14fc09d846b27fbadf29dbe9b.exe
2156	fc32d6d2d68e49c6305d3968dc16198babbc44a14fc09d846b27fbadf29dbe9b.exe
2156	fc32d6d2d68e49c6305d3968dc16198babbc44a14fc09d846b27fbadf29dbe9b.exe
2156	fc32d6d2d68e49c6305d3968dc16198babbc44a14fc09d846b27fbadf29dbe9b.exe
2156	fc32d6d2d68e49c6305d3968dc16198babbc44a14fc09d846b27fbadf29dbe9b.exe
2156	fc32d6d2d68e49c6305d3968dc16198babbc44a14fc09d846b27fbadf29dbe9b.exe
2156	fc32d6d2d68e49c6305d3968dc16198babbc44a14fc09d846b27fbadf29dbe9b.exe
2156	fc32d6d2d68e49c6305d3968dc16198babbc44a14fc09d846b27fbadf29dbe9b.exe
2156	fc32d6d2d68e49c6305d3968dc16198babbc44a14fc09d846b27fbadf29dbe9b.exe
2156	fc32d6d2d68e49c6305d3968dc16198babbc44a14fc09d846b27fbadf29dbe9b.exe
2156	fc32d6d2d68e49c6305d3968dc16198babbc44a14fc09d846b27fbadf29dbe9b.exe
2156	fc32d6d2d68e49c6305d3968dc16198babbc44a14fc09d846b27fbadf29dbe9b.exe
1356	explorer.exe
1356	explorer.exe
1356	explorer.exe
1356	explorer.exe
1356	explorer.exe
1356	explorer.exe
1356	explorer.exe
1356	explorer.exe
1356	explorer.exe
1356	explorer.exe
1356	explorer.exe
1356	explorer.exe
1356	explorer.exe
1356	explorer.exe
1356	explorer.exe
1356	explorer.exe
2412	svchost.exe
2412	svchost.exe
2412	svchost.exe
2412	svchost.exe
2412	svchost.exe
2412	svchost.exe
2412	svchost.exe
2412	svchost.exe
2412	svchost.exe
2412	svchost.exe
2412	svchost.exe
2412	svchost.exe
2412	svchost.exe
2412	svchost.exe
2412	svchost.exe
2412	svchost.exe
1356	explorer.exe
1356	explorer.exe
1356	explorer.exe
2412	svchost.exe
2412	svchost.exe
1356	explorer.exe
2412	svchost.exe
1356	explorer.exe
2412	svchost.exe
1356	explorer.exe
2412	svchost.exe
1356	explorer.exe
2412	svchost.exe
1356	explorer.exe
2412	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
1356	explorer.exe
2412	svchost.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
2156	fc32d6d2d68e49c6305d3968dc16198babbc44a14fc09d846b27fbadf29dbe9b.exe
2156	fc32d6d2d68e49c6305d3968dc16198babbc44a14fc09d846b27fbadf29dbe9b.exe
1356	explorer.exe
1356	explorer.exe
2100	spoolsv.exe
2100	spoolsv.exe
2412	svchost.exe
2412	svchost.exe
2700	spoolsv.exe
2700	spoolsv.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 2156 wrote to memory of 1356	2156	fc32d6d2d68e49c6305d3968dc16198babbc44a14fc09d846b27fbadf29dbe9b.exe	30
PID 2156 wrote to memory of 1356	2156	fc32d6d2d68e49c6305d3968dc16198babbc44a14fc09d846b27fbadf29dbe9b.exe	30
PID 2156 wrote to memory of 1356	2156	fc32d6d2d68e49c6305d3968dc16198babbc44a14fc09d846b27fbadf29dbe9b.exe	30
PID 2156 wrote to memory of 1356	2156	fc32d6d2d68e49c6305d3968dc16198babbc44a14fc09d846b27fbadf29dbe9b.exe	30
PID 1356 wrote to memory of 2100	1356	explorer.exe	31
PID 1356 wrote to memory of 2100	1356	explorer.exe	31
PID 1356 wrote to memory of 2100	1356	explorer.exe	31
PID 1356 wrote to memory of 2100	1356	explorer.exe	31
PID 2100 wrote to memory of 2412	2100	spoolsv.exe	32
PID 2100 wrote to memory of 2412	2100	spoolsv.exe	32
PID 2100 wrote to memory of 2412	2100	spoolsv.exe	32
PID 2100 wrote to memory of 2412	2100	spoolsv.exe	32
PID 2412 wrote to memory of 2700	2412	svchost.exe	33
PID 2412 wrote to memory of 2700	2412	svchost.exe	33
PID 2412 wrote to memory of 2700	2412	svchost.exe	33
PID 2412 wrote to memory of 2700	2412	svchost.exe	33
PID 1356 wrote to memory of 2764	1356	explorer.exe	34
PID 1356 wrote to memory of 2764	1356	explorer.exe	34
PID 1356 wrote to memory of 2764	1356	explorer.exe	34
PID 1356 wrote to memory of 2764	1356	explorer.exe	34
PID 2412 wrote to memory of 2760	2412	svchost.exe	35
PID 2412 wrote to memory of 2760	2412	svchost.exe	35
PID 2412 wrote to memory of 2760	2412	svchost.exe	35
PID 2412 wrote to memory of 2760	2412	svchost.exe	35
PID 2412 wrote to memory of 1688	2412	svchost.exe	39
PID 2412 wrote to memory of 1688	2412	svchost.exe	39
PID 2412 wrote to memory of 1688	2412	svchost.exe	39
PID 2412 wrote to memory of 1688	2412	svchost.exe	39
PID 2412 wrote to memory of 1968	2412	svchost.exe	41
PID 2412 wrote to memory of 1968	2412	svchost.exe	41
PID 2412 wrote to memory of 1968	2412	svchost.exe	41
PID 2412 wrote to memory of 1968	2412	svchost.exe	41

C:\Users\Admin\AppData\Local\Temp\fc32d6d2d68e49c6305d3968dc16198babbc44a14fc09d846b27fbadf29dbe9b.exe
"C:\Users\Admin\AppData\Local\Temp\fc32d6d2d68e49c6305d3968dc16198babbc44a14fc09d846b27fbadf29dbe9b.exe"
1⤵
- Loads dropped DLL
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2156
- \??\c:\windows\resources\themes\explorer.exe
  c:\windows\resources\themes\explorer.exe
  2⤵
  - Modifies visiblity of hidden/system files in Explorer
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Drops file in System32 directory
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1356
- - \??\c:\windows\resources\spoolsv.exe
    c:\windows\resources\spoolsv.exe SE
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2100
  - - \??\c:\windows\resources\svchost.exe
      c:\windows\resources\svchost.exe
      4⤵
      Modifies visiblity of hidden/system files in Explorer
      Executes dropped EXE
      Loads dropped DLL
      Adds Run key to start application
      Drops file in System32 directory
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:2412
    - - \??\c:\windows\resources\spoolsv.exe
        
        c:\windows\resources\spoolsv.exe PR
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious use of SetWindowsHookEx
        
        PID:2700
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 06:21 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2760
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 06:22 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:1688
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 06:23 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:1968
- - C:\Windows\Explorer.exe
    C:\Windows\Explorer.exe
    3⤵
    PID:2764

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\Resources\spoolsv.exe

Filesize
135KB

MD5
ceea0e7063722dd7048bf3c49393d4ae

SHA1
896fcc2a3340271424d5d0febb7e545ac0cad7ee

SHA256
5bd5e7c9e31d745a44f875a4842ac36e14a0b9241bfb9350c26f468dabbc68bc

SHA512
c2283540df4f88ad4addecd10f833b3ab8f7b1d95fee8fc3e69e3e2116e75185824e7c09374132f895cda5eb1628fd440f8c3c7dd3b562b1d5aaeed8d6192144

Download Submit
\Windows\Resources\Themes\explorer.exe

Filesize
135KB

MD5
1f2a392e6649cc7f5f472670d519c0c0

SHA1
93914dc0262f3b0fcd0ca575a129148b7e60ab88

SHA256
bce46259fa6e72c10ba64247a147fcd2a47615bd8383bf75d0190b8ad4f6d424

SHA512
9c19a6060baf604a7a1b8df59874165998fb08bfae7162ca6affc16edf8d5e106759c2ad3fdc1fae3f213e7584de6416d0f46fcaddb3f9238fd9f7a3e63e07a2

Download Submit
\Windows\Resources\svchost.exe

Filesize
135KB

MD5
87debefafac74f053b3e545621e4d529

SHA1
4ed30f78464738b79dac28bd025ac2bfc06923c9

SHA256
a0fee653573775412bc7fe832f2ee08304bee2c19a1954ef7474a345633e827b

SHA512
a274f20888ca6b3d19ebd265961e583013d43a6a0c8f86121a820c706b50ec058e0192bace4872f1ac9d7fbd9f220154e8ffd7d9d996505520868770b1625349

Download Submit
memory/1356-43-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2100-41-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2156-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2156-42-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2412-35-0x0000000000420000-0x000000000043F000-memory.dmp

Filesize
124KB

Download
memory/2412-44-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2412-45-0x0000000000420000-0x000000000043F000-memory.dmp

Filesize
124KB

Download
memory/2700-40-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download