d206754e9acc8e3a8a1a4635c170849a79da0af76900dc5492136f6b4caf16c4

Analysis

max time kernel
120s
max time network
18s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
26-07-2024 14:18

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General

Target

1aca0a22e141cd74df39829beab1cec0N.exe
Size

135KB
MD5

1aca0a22e141cd74df39829beab1cec0
SHA1

1d19212f3131046a2bc5b8735a40010527000a23
SHA256

d206754e9acc8e3a8a1a4635c170849a79da0af76900dc5492136f6b4caf16c4
SHA512

dff1157cbe4f73f3900f4bd5ba5764a6d870d6442b4d192b203546966de91f3fe58adb2270afabb2aeb83973380b57911f76207710ae17c856a1e550345af83b
SSDEEP

3072:UVqoCl/YgjxEufVU0TbTyDDal4dzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzj:UsLqdufVUNDaAzzzzzzzzzzzzzzzzzzj

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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe

Executes dropped EXE 4 IoCs

pid	Process
1944	explorer.exe
1056	spoolsv.exe
2056	svchost.exe
2836	spoolsv.exe

Loads dropped DLL 4 IoCs

pid	Process
2992	1aca0a22e141cd74df39829beab1cec0N.exe
1944	explorer.exe
1056	spoolsv.exe
2056	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\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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\resources\\themes\\explorer.exe RO"	explorer.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

Drops file in Windows directory 4 IoCs

description	ioc	Process
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	1aca0a22e141cd74df39829beab1cec0N.exe
File opened for modification	\??\c:\windows\resources\spoolsv.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	spoolsv.exe
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	1aca0a22e141cd74df39829beab1cec0N.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

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
2396	schtasks.exe
2244	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2992	1aca0a22e141cd74df39829beab1cec0N.exe
2992	1aca0a22e141cd74df39829beab1cec0N.exe
2992	1aca0a22e141cd74df39829beab1cec0N.exe
2992	1aca0a22e141cd74df39829beab1cec0N.exe
2992	1aca0a22e141cd74df39829beab1cec0N.exe
2992	1aca0a22e141cd74df39829beab1cec0N.exe
2992	1aca0a22e141cd74df39829beab1cec0N.exe
2992	1aca0a22e141cd74df39829beab1cec0N.exe
2992	1aca0a22e141cd74df39829beab1cec0N.exe
2992	1aca0a22e141cd74df39829beab1cec0N.exe
2992	1aca0a22e141cd74df39829beab1cec0N.exe
2992	1aca0a22e141cd74df39829beab1cec0N.exe
2992	1aca0a22e141cd74df39829beab1cec0N.exe
2992	1aca0a22e141cd74df39829beab1cec0N.exe
2992	1aca0a22e141cd74df39829beab1cec0N.exe
2992	1aca0a22e141cd74df39829beab1cec0N.exe
2992	1aca0a22e141cd74df39829beab1cec0N.exe
1944	explorer.exe
1944	explorer.exe
1944	explorer.exe
1944	explorer.exe
1944	explorer.exe
1944	explorer.exe
1944	explorer.exe
1944	explorer.exe
1944	explorer.exe
1944	explorer.exe
1944	explorer.exe
1944	explorer.exe
1944	explorer.exe
1944	explorer.exe
1944	explorer.exe
1944	explorer.exe
2056	svchost.exe
2056	svchost.exe
2056	svchost.exe
2056	svchost.exe
2056	svchost.exe
2056	svchost.exe
2056	svchost.exe
2056	svchost.exe
2056	svchost.exe
2056	svchost.exe
2056	svchost.exe
2056	svchost.exe
2056	svchost.exe
2056	svchost.exe
2056	svchost.exe
2056	svchost.exe
1944	explorer.exe
1944	explorer.exe
1944	explorer.exe
2056	svchost.exe
2056	svchost.exe
1944	explorer.exe
1944	explorer.exe
2056	svchost.exe
1944	explorer.exe
2056	svchost.exe
2056	svchost.exe
1944	explorer.exe
2056	svchost.exe
1944	explorer.exe
2056	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
1944	explorer.exe
2056	svchost.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
2992	1aca0a22e141cd74df39829beab1cec0N.exe
2992	1aca0a22e141cd74df39829beab1cec0N.exe
1944	explorer.exe
1944	explorer.exe
1056	spoolsv.exe
1056	spoolsv.exe
2056	svchost.exe
2056	svchost.exe
2836	spoolsv.exe
2836	spoolsv.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2992 wrote to memory of 1944	2992	1aca0a22e141cd74df39829beab1cec0N.exe	30
PID 2992 wrote to memory of 1944	2992	1aca0a22e141cd74df39829beab1cec0N.exe	30
PID 2992 wrote to memory of 1944	2992	1aca0a22e141cd74df39829beab1cec0N.exe	30
PID 2992 wrote to memory of 1944	2992	1aca0a22e141cd74df39829beab1cec0N.exe	30
PID 1944 wrote to memory of 1056	1944	explorer.exe	31
PID 1944 wrote to memory of 1056	1944	explorer.exe	31
PID 1944 wrote to memory of 1056	1944	explorer.exe	31
PID 1944 wrote to memory of 1056	1944	explorer.exe	31
PID 1056 wrote to memory of 2056	1056	spoolsv.exe	32
PID 1056 wrote to memory of 2056	1056	spoolsv.exe	32
PID 1056 wrote to memory of 2056	1056	spoolsv.exe	32
PID 1056 wrote to memory of 2056	1056	spoolsv.exe	32
PID 2056 wrote to memory of 2836	2056	svchost.exe	33
PID 2056 wrote to memory of 2836	2056	svchost.exe	33
PID 2056 wrote to memory of 2836	2056	svchost.exe	33
PID 2056 wrote to memory of 2836	2056	svchost.exe	33
PID 1944 wrote to memory of 2748	1944	explorer.exe	34
PID 1944 wrote to memory of 2748	1944	explorer.exe	34
PID 1944 wrote to memory of 2748	1944	explorer.exe	34
PID 1944 wrote to memory of 2748	1944	explorer.exe	34
PID 2056 wrote to memory of 2244	2056	svchost.exe	35
PID 2056 wrote to memory of 2244	2056	svchost.exe	35
PID 2056 wrote to memory of 2244	2056	svchost.exe	35
PID 2056 wrote to memory of 2244	2056	svchost.exe	35
PID 2056 wrote to memory of 2396	2056	svchost.exe	39
PID 2056 wrote to memory of 2396	2056	svchost.exe	39
PID 2056 wrote to memory of 2396	2056	svchost.exe	39
PID 2056 wrote to memory of 2396	2056	svchost.exe	39

C:\Users\Admin\AppData\Local\Temp\1aca0a22e141cd74df39829beab1cec0N.exe
"C:\Users\Admin\AppData\Local\Temp\1aca0a22e141cd74df39829beab1cec0N.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:2992
- \??\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:1944
- - \??\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:1056
  - - \??\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:2056
    - - \??\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:2836
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 14:22 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2244
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 14:23 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2396
- - C:\Windows\Explorer.exe
    C:\Windows\Explorer.exe
    3⤵
    PID:2748

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\Themes\explorer.exe

Filesize
135KB

MD5
8ea476c7b4dad4fbbe53a2796a69ba79

SHA1
b1e2f87b4c1766c2568cdd5f72b02b4d9c70766f

SHA256
75aca8d1be8d6c6040347807067153e5ffa0c30945da570c4733836370273803

SHA512
83666033cb7bd0c1cad925c8086647cd1c88efddc42a248d5326abc93099059001e15b734df0deaf8988934738d188508f89e3757e96b76d70f1b2794cb76370

Download Submit
\Windows\Resources\spoolsv.exe

Filesize
135KB

MD5
adcc8c8f1567fe02cec3b5f4a874bf37

SHA1
72a5aa9bfe7d45637135244bf756ce66fd2fbbcd

SHA256
e0fb3db8e83281616ee631347301d70d77ed3cc1ca3208d1a177fcceb29f2696

SHA512
a1d0a07b76761a3fc33fc53e0568e3b285e2a9b3f6bed10dac730614d72e55260b1599b59fab68abd4850336c610dad9a99a6563ab94b9c445ffb7ee065c5570

Download Submit
\Windows\Resources\svchost.exe

Filesize
135KB

MD5
a92c6534bd2797188e1b337b9c6c06de

SHA1
499f796022a6ea8397a8833918495ada6adcb57d

SHA256
7829314b902ffc73b81f9dfc55b180588fd204737c8c2c7845d6091841de3ce5

SHA512
c1b9ac09bac8ca47dffcccd8d75029ca02ebbd64f128eeb5199177f6ed5866519e759fcf02b1608fafc9823745c42d6d7f37f869605149a572060ce49bec127a

Download Submit
memory/1056-24-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/1056-44-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/1944-23-0x0000000000310000-0x000000000032F000-memory.dmp

Filesize
124KB

Download
memory/2056-39-0x00000000002C0000-0x00000000002DF000-memory.dmp

Filesize
124KB

Download
memory/2836-43-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2992-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2992-9-0x00000000002A0000-0x00000000002BF000-memory.dmp

Filesize
124KB

Download
memory/2992-45-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download