76e24c3e4eea9c6c2ae3574f00318d6e90bfed25e9c0b0e536ddd76fd4ca6deb

Analysis

max time kernel
120s
max time network
17s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
25/08/2024, 19:56

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General

Target

89ee1a81ae7fa351c0a459c97d5e8680N.exe
Size

3.6MB
MD5

89ee1a81ae7fa351c0a459c97d5e8680
SHA1

b33657444c36d3bd09d01758c92ffe4104756114
SHA256

76e24c3e4eea9c6c2ae3574f00318d6e90bfed25e9c0b0e536ddd76fd4ca6deb
SHA512

97028e2fd81dac5a798d42276f39b5f3d67abedcd198e10033ec270ac980a7f19c1b4814e284532cd054560bdde90ab5f74a8d0992def771a467591c9435d75d
SSDEEP

98304:ddByXcdnlLwOrI5Vfeg91hZOhkRpsinjP:ddien+OrFuBR6cP

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-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe

Executes dropped EXE 4 IoCs

pid	Process
2008	explorer.exe
2224	spoolsv.exe
2872	svchost.exe
2240	spoolsv.exe

Loads dropped DLL 4 IoCs

pid	Process
2456	89ee1a81ae7fa351c0a459c97d5e8680N.exe
2008	explorer.exe
2224	spoolsv.exe
2872	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	explorer.exe
File opened for modification	C:\Windows\SysWOW64\explorer.exe	svchost.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 30 IoCs

pid	Process
2456	89ee1a81ae7fa351c0a459c97d5e8680N.exe
2008	explorer.exe
2008	explorer.exe
2224	spoolsv.exe
2872	svchost.exe
2240	spoolsv.exe
2240	spoolsv.exe
2872	svchost.exe
2008	explorer.exe
2872	svchost.exe
2008	explorer.exe
2872	svchost.exe
2008	explorer.exe
2872	svchost.exe
2008	explorer.exe
2872	svchost.exe
2008	explorer.exe
2872	svchost.exe
2008	explorer.exe
2872	svchost.exe
2008	explorer.exe
2872	svchost.exe
2008	explorer.exe
2872	svchost.exe
2008	explorer.exe
2872	svchost.exe
2008	explorer.exe
2872	svchost.exe
2008	explorer.exe
2872	svchost.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\windows\resources\themes\explorer.exe	89ee1a81ae7fa351c0a459c97d5e8680N.exe
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

System Location Discovery: System Language Discovery 1 TTPs 7 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	89ee1a81ae7fa351c0a459c97d5e8680N.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

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2644	schtasks.exe
2316	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2456	89ee1a81ae7fa351c0a459c97d5e8680N.exe
2456	89ee1a81ae7fa351c0a459c97d5e8680N.exe
2456	89ee1a81ae7fa351c0a459c97d5e8680N.exe
2456	89ee1a81ae7fa351c0a459c97d5e8680N.exe
2456	89ee1a81ae7fa351c0a459c97d5e8680N.exe
2456	89ee1a81ae7fa351c0a459c97d5e8680N.exe
2456	89ee1a81ae7fa351c0a459c97d5e8680N.exe
2456	89ee1a81ae7fa351c0a459c97d5e8680N.exe
2456	89ee1a81ae7fa351c0a459c97d5e8680N.exe
2456	89ee1a81ae7fa351c0a459c97d5e8680N.exe
2456	89ee1a81ae7fa351c0a459c97d5e8680N.exe
2456	89ee1a81ae7fa351c0a459c97d5e8680N.exe
2456	89ee1a81ae7fa351c0a459c97d5e8680N.exe
2456	89ee1a81ae7fa351c0a459c97d5e8680N.exe
2456	89ee1a81ae7fa351c0a459c97d5e8680N.exe
2456	89ee1a81ae7fa351c0a459c97d5e8680N.exe
2456	89ee1a81ae7fa351c0a459c97d5e8680N.exe
2008	explorer.exe
2008	explorer.exe
2008	explorer.exe
2008	explorer.exe
2008	explorer.exe
2008	explorer.exe
2008	explorer.exe
2008	explorer.exe
2008	explorer.exe
2008	explorer.exe
2008	explorer.exe
2008	explorer.exe
2008	explorer.exe
2008	explorer.exe
2008	explorer.exe
2008	explorer.exe
2872	svchost.exe
2872	svchost.exe
2872	svchost.exe
2872	svchost.exe
2872	svchost.exe
2872	svchost.exe
2872	svchost.exe
2872	svchost.exe
2872	svchost.exe
2872	svchost.exe
2872	svchost.exe
2872	svchost.exe
2872	svchost.exe
2872	svchost.exe
2872	svchost.exe
2872	svchost.exe
2008	explorer.exe
2008	explorer.exe
2008	explorer.exe
2872	svchost.exe
2872	svchost.exe
2008	explorer.exe
2872	svchost.exe
2008	explorer.exe
2872	svchost.exe
2008	explorer.exe
2872	svchost.exe
2008	explorer.exe
2872	svchost.exe
2008	explorer.exe
2872	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2872	svchost.exe
2008	explorer.exe

Suspicious use of SetWindowsHookEx 15 IoCs

pid	Process
2456	89ee1a81ae7fa351c0a459c97d5e8680N.exe
2456	89ee1a81ae7fa351c0a459c97d5e8680N.exe
2456	89ee1a81ae7fa351c0a459c97d5e8680N.exe
2008	explorer.exe
2008	explorer.exe
2008	explorer.exe
2224	spoolsv.exe
2224	spoolsv.exe
2224	spoolsv.exe
2872	svchost.exe
2872	svchost.exe
2872	svchost.exe
2240	spoolsv.exe
2240	spoolsv.exe
2240	spoolsv.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2456 wrote to memory of 2008	2456	89ee1a81ae7fa351c0a459c97d5e8680N.exe	29
PID 2456 wrote to memory of 2008	2456	89ee1a81ae7fa351c0a459c97d5e8680N.exe	29
PID 2456 wrote to memory of 2008	2456	89ee1a81ae7fa351c0a459c97d5e8680N.exe	29
PID 2456 wrote to memory of 2008	2456	89ee1a81ae7fa351c0a459c97d5e8680N.exe	29
PID 2008 wrote to memory of 2224	2008	explorer.exe	30
PID 2008 wrote to memory of 2224	2008	explorer.exe	30
PID 2008 wrote to memory of 2224	2008	explorer.exe	30
PID 2008 wrote to memory of 2224	2008	explorer.exe	30
PID 2224 wrote to memory of 2872	2224	spoolsv.exe	31
PID 2224 wrote to memory of 2872	2224	spoolsv.exe	31
PID 2224 wrote to memory of 2872	2224	spoolsv.exe	31
PID 2224 wrote to memory of 2872	2224	spoolsv.exe	31
PID 2872 wrote to memory of 2240	2872	svchost.exe	32
PID 2872 wrote to memory of 2240	2872	svchost.exe	32
PID 2872 wrote to memory of 2240	2872	svchost.exe	32
PID 2872 wrote to memory of 2240	2872	svchost.exe	32
PID 2008 wrote to memory of 2816	2008	explorer.exe	33
PID 2008 wrote to memory of 2816	2008	explorer.exe	33
PID 2008 wrote to memory of 2816	2008	explorer.exe	33
PID 2008 wrote to memory of 2816	2008	explorer.exe	33
PID 2872 wrote to memory of 2644	2872	svchost.exe	34
PID 2872 wrote to memory of 2644	2872	svchost.exe	34
PID 2872 wrote to memory of 2644	2872	svchost.exe	34
PID 2872 wrote to memory of 2644	2872	svchost.exe	34
PID 2872 wrote to memory of 2316	2872	svchost.exe	37
PID 2872 wrote to memory of 2316	2872	svchost.exe	37
PID 2872 wrote to memory of 2316	2872	svchost.exe	37
PID 2872 wrote to memory of 2316	2872	svchost.exe	37

C:\Users\Admin\AppData\Local\Temp\89ee1a81ae7fa351c0a459c97d5e8680N.exe
"C:\Users\Admin\AppData\Local\Temp\89ee1a81ae7fa351c0a459c97d5e8680N.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2456
- \??\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
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - 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:2008
- - \??\c:\windows\resources\spoolsv.exe
    c:\windows\resources\spoolsv.exe SE
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2224
  - - \??\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
      Suspicious use of NtSetInformationThreadHideFromDebugger
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:2872
    - - \??\c:\windows\resources\spoolsv.exe
        
        c:\windows\resources\spoolsv.exe PR
        5⤵
        Executes dropped EXE
        Suspicious use of NtSetInformationThreadHideFromDebugger
        System Location Discovery: System Language Discovery
        Suspicious use of SetWindowsHookEx
        
        PID:2240
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 19:58 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2644
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 19:59 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2316
- - C:\Windows\Explorer.exe
    C:\Windows\Explorer.exe
    3⤵
    PID:2816

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
3.6MB

MD5
c3f517d4d49e76a20a6cffda4258ced7

SHA1
7c88dacb4e028a6942b3e955ff3526774c6841a7

SHA256
5bdd1e32202c1b830eb578d73186a6815fcf39131d2008c778f807a94c2d7722

SHA512
e46651f1a635e3a431290740b0ff5562ce8746fe0b92c5cb1682bbbceae2e4cb7aaf36e3948e86db492e08b64ad1a913fca39f1bfa5865ecd634d53218e8ec0c

Download Submit
C:\Windows\Resources\svchost.exe

Filesize
3.6MB

MD5
0dc177421d0b95496a486b2caa779528

SHA1
277bb87d9e7efec94b806dcb1f1d2aeb8fff5825

SHA256
163cbe5073bfbbb2d2ad4f167162cb9318bc0df90b221760fcd2ae4712dad541

SHA512
b23c57cfdff23db61485546eb4b2f6675140e4b5830cadc6d04ba710a29d8c9edf0f6b736afa6e931ac94895bec844d2d92b6ae4689cb1aaf3c8f39980f47782

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

Filesize
3.6MB

MD5
15e7eccc9788fabd594b1a7ebf7d6e48

SHA1
cba94b8593418528e53b69fc58a05bc14912523b

SHA256
a72188ee7c69f7b84efcd2e859341d62179bd7b5c0e599718ae7aa50331f58d9

SHA512
c6e20b4d66aa9e33f7cfedde35cf5d1ffc605e58a371fbb0147144894bb4d8e5c9d3ebdf367660b2a157b6f4be0c6f9ea3e5822c237bee31158e178ec587d70b

Download Submit
memory/2008-73-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2008-61-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2008-22-0x00000000037A0000-0x0000000003B24000-memory.dmp

Filesize
3.5MB

Download
memory/2008-63-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2008-77-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2008-67-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2008-11-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2008-65-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2008-69-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2008-59-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2008-71-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2008-55-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2008-52-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2008-53-0x00000000037A0000-0x0000000003B24000-memory.dmp

Filesize
3.5MB

Download
memory/2008-75-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2224-33-0x00000000037B0000-0x0000000003B34000-memory.dmp

Filesize
3.5MB

Download
memory/2224-48-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2240-46-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2240-58-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2240-49-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2456-51-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2456-0-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2456-35-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2456-1-0x0000000077090000-0x0000000077091000-memory.dmp

Filesize
4KB

Download
memory/2872-42-0x0000000003960000-0x0000000003CE4000-memory.dmp

Filesize
3.5MB

Download
memory/2872-64-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2872-66-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2872-62-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2872-68-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2872-60-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2872-70-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2872-57-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2872-72-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2872-56-0x0000000003960000-0x0000000003CE4000-memory.dmp

Filesize
3.5MB

Download
memory/2872-74-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2872-54-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2872-76-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2872-36-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2872-78-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download