184829c7ebf3ab12776cb45bde088a2e80452b60fbfb885fc03cf53f9328b2e1

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13/10/2024, 14:54

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General

Target

184829c7ebf3ab12776cb45bde088a2e80452b60fbfb885fc03cf53f9328b2e1N.exe
Size

135KB
MD5

23155487d27889815904e78fa4d11be0
SHA1

2d4d2b79aec7d2fe31da46394793227a8f0e56ac
SHA256

184829c7ebf3ab12776cb45bde088a2e80452b60fbfb885fc03cf53f9328b2e1
SHA512

2fd638933e6bac4cbf5c545a772616b6536424fbaa1235c832437ed12490559b2ffc44f04fbb8bc85fea23b96f681d5eb46155a00ed300b40d4e1947862cf3ce
SSDEEP

1536:UfsEqouTRcG/Mzvgf7xEuvnXNTRdUzwTekUOisZ1yDDajtXbVpmAf:UVqoCl/YgjxEufVU0TbTyDDalzVf

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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe

Executes dropped EXE 4 IoCs

pid	Process
2468	explorer.exe
2036	spoolsv.exe
2120	svchost.exe
2764	spoolsv.exe

Loads dropped DLL 4 IoCs

pid	Process
1796	184829c7ebf3ab12776cb45bde088a2e80452b60fbfb885fc03cf53f9328b2e1N.exe
2468	explorer.exe
2036	spoolsv.exe
2120	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"	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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\resources\\svchost.exe RO"	explorer.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\themes\explorer.exe	184829c7ebf3ab12776cb45bde088a2e80452b60fbfb885fc03cf53f9328b2e1N.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	184829c7ebf3ab12776cb45bde088a2e80452b60fbfb885fc03cf53f9328b2e1N.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
584	schtasks.exe
2796	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1796	184829c7ebf3ab12776cb45bde088a2e80452b60fbfb885fc03cf53f9328b2e1N.exe
1796	184829c7ebf3ab12776cb45bde088a2e80452b60fbfb885fc03cf53f9328b2e1N.exe
1796	184829c7ebf3ab12776cb45bde088a2e80452b60fbfb885fc03cf53f9328b2e1N.exe
1796	184829c7ebf3ab12776cb45bde088a2e80452b60fbfb885fc03cf53f9328b2e1N.exe
1796	184829c7ebf3ab12776cb45bde088a2e80452b60fbfb885fc03cf53f9328b2e1N.exe
1796	184829c7ebf3ab12776cb45bde088a2e80452b60fbfb885fc03cf53f9328b2e1N.exe
1796	184829c7ebf3ab12776cb45bde088a2e80452b60fbfb885fc03cf53f9328b2e1N.exe
1796	184829c7ebf3ab12776cb45bde088a2e80452b60fbfb885fc03cf53f9328b2e1N.exe
1796	184829c7ebf3ab12776cb45bde088a2e80452b60fbfb885fc03cf53f9328b2e1N.exe
1796	184829c7ebf3ab12776cb45bde088a2e80452b60fbfb885fc03cf53f9328b2e1N.exe
1796	184829c7ebf3ab12776cb45bde088a2e80452b60fbfb885fc03cf53f9328b2e1N.exe
1796	184829c7ebf3ab12776cb45bde088a2e80452b60fbfb885fc03cf53f9328b2e1N.exe
1796	184829c7ebf3ab12776cb45bde088a2e80452b60fbfb885fc03cf53f9328b2e1N.exe
1796	184829c7ebf3ab12776cb45bde088a2e80452b60fbfb885fc03cf53f9328b2e1N.exe
1796	184829c7ebf3ab12776cb45bde088a2e80452b60fbfb885fc03cf53f9328b2e1N.exe
1796	184829c7ebf3ab12776cb45bde088a2e80452b60fbfb885fc03cf53f9328b2e1N.exe
1796	184829c7ebf3ab12776cb45bde088a2e80452b60fbfb885fc03cf53f9328b2e1N.exe
2468	explorer.exe
2468	explorer.exe
2468	explorer.exe
2468	explorer.exe
2468	explorer.exe
2468	explorer.exe
2468	explorer.exe
2468	explorer.exe
2468	explorer.exe
2468	explorer.exe
2468	explorer.exe
2468	explorer.exe
2468	explorer.exe
2468	explorer.exe
2468	explorer.exe
2468	explorer.exe
2120	svchost.exe
2120	svchost.exe
2120	svchost.exe
2120	svchost.exe
2120	svchost.exe
2120	svchost.exe
2120	svchost.exe
2120	svchost.exe
2120	svchost.exe
2120	svchost.exe
2120	svchost.exe
2120	svchost.exe
2120	svchost.exe
2120	svchost.exe
2120	svchost.exe
2120	svchost.exe
2468	explorer.exe
2468	explorer.exe
2120	svchost.exe
2468	explorer.exe
2120	svchost.exe
2468	explorer.exe
2468	explorer.exe
2120	svchost.exe
2468	explorer.exe
2120	svchost.exe
2120	svchost.exe
2468	explorer.exe
2468	explorer.exe
2120	svchost.exe
2468	explorer.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2468	explorer.exe
2120	svchost.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
1796	184829c7ebf3ab12776cb45bde088a2e80452b60fbfb885fc03cf53f9328b2e1N.exe
1796	184829c7ebf3ab12776cb45bde088a2e80452b60fbfb885fc03cf53f9328b2e1N.exe
2468	explorer.exe
2468	explorer.exe
2036	spoolsv.exe
2036	spoolsv.exe
2120	svchost.exe
2120	svchost.exe
2764	spoolsv.exe
2764	spoolsv.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 1796 wrote to memory of 2468	1796	184829c7ebf3ab12776cb45bde088a2e80452b60fbfb885fc03cf53f9328b2e1N.exe	31
PID 1796 wrote to memory of 2468	1796	184829c7ebf3ab12776cb45bde088a2e80452b60fbfb885fc03cf53f9328b2e1N.exe	31
PID 1796 wrote to memory of 2468	1796	184829c7ebf3ab12776cb45bde088a2e80452b60fbfb885fc03cf53f9328b2e1N.exe	31
PID 1796 wrote to memory of 2468	1796	184829c7ebf3ab12776cb45bde088a2e80452b60fbfb885fc03cf53f9328b2e1N.exe	31
PID 2468 wrote to memory of 2036	2468	explorer.exe	32
PID 2468 wrote to memory of 2036	2468	explorer.exe	32
PID 2468 wrote to memory of 2036	2468	explorer.exe	32
PID 2468 wrote to memory of 2036	2468	explorer.exe	32
PID 2036 wrote to memory of 2120	2036	spoolsv.exe	33
PID 2036 wrote to memory of 2120	2036	spoolsv.exe	33
PID 2036 wrote to memory of 2120	2036	spoolsv.exe	33
PID 2036 wrote to memory of 2120	2036	spoolsv.exe	33
PID 2120 wrote to memory of 2764	2120	svchost.exe	34
PID 2120 wrote to memory of 2764	2120	svchost.exe	34
PID 2120 wrote to memory of 2764	2120	svchost.exe	34
PID 2120 wrote to memory of 2764	2120	svchost.exe	34
PID 2468 wrote to memory of 2676	2468	explorer.exe	35
PID 2468 wrote to memory of 2676	2468	explorer.exe	35
PID 2468 wrote to memory of 2676	2468	explorer.exe	35
PID 2468 wrote to memory of 2676	2468	explorer.exe	35
PID 2120 wrote to memory of 584	2120	svchost.exe	36
PID 2120 wrote to memory of 584	2120	svchost.exe	36
PID 2120 wrote to memory of 584	2120	svchost.exe	36
PID 2120 wrote to memory of 584	2120	svchost.exe	36
PID 2120 wrote to memory of 2796	2120	svchost.exe	39
PID 2120 wrote to memory of 2796	2120	svchost.exe	39
PID 2120 wrote to memory of 2796	2120	svchost.exe	39
PID 2120 wrote to memory of 2796	2120	svchost.exe	39

C:\Users\Admin\AppData\Local\Temp\184829c7ebf3ab12776cb45bde088a2e80452b60fbfb885fc03cf53f9328b2e1N.exe
"C:\Users\Admin\AppData\Local\Temp\184829c7ebf3ab12776cb45bde088a2e80452b60fbfb885fc03cf53f9328b2e1N.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:1796
- \??\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:2468
- - \??\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:2036
  - - \??\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:2120
    - - \??\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:2764
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 14:56 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:584
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 14:57 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2796
- - C:\Windows\Explorer.exe
    C:\Windows\Explorer.exe
    3⤵
    PID:2676

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
2dc4fa5f0e920ffe136c0de0a3aebcd6

SHA1
18601a3262dca1d78a1eeaa95c6ebdcdcb5a03f2

SHA256
4dbecaf32d0094933f158c61e4a3d535e1f0253cfddc57e25c3eea59825c892e

SHA512
307cecde877d051b6be7f39efa92892dde6be94447fc70a97aa044d8a31e005e3e6a015a6441c53eee18e589abba4f4db8b9f696afbc676af926083597822dc7

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

Filesize
135KB

MD5
2399316d3639539a79e74ea654399783

SHA1
af11d08dd3b366614e62cb9d3e1b1f6f1e67ca0c

SHA256
b84c76d16859f96fd014f1101e17bb687ce883ce86f3d4986162900d825c00b8

SHA512
570fb1430e44602e271faa856e176f8f0b6ea9780d03c4a049dc2a10d484f380f01b1fb32a2e52822c9976a1413b3c5f1d0f51c85e71a2dc5f4bcb6dc5883afe

Download Submit
\Windows\Resources\svchost.exe

Filesize
135KB

MD5
eff508229ce00f523ce664d16094b71d

SHA1
40c744f60b2b3e1d88d017d3bc719c5170f5d4f7

SHA256
1ce5f9c40a4bd952b85e8be03daa6801e17f22fa9eb5c75d3ce6abbf7444ea8a

SHA512
dea31fe71aeac63afca0b1be1975ca26bc443af4a76d734f77a5d9aa5d4c6230abc95d0e9b7507015d079c535b6d53f70a6785e8a84078fbd22296f9b4e3b90f

Download Submit
memory/1796-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/1796-42-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2036-41-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2120-35-0x0000000000420000-0x000000000043F000-memory.dmp

Filesize
124KB

Download
memory/2120-45-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2120-46-0x0000000000420000-0x000000000043F000-memory.dmp

Filesize
124KB

Download
memory/2468-43-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2468-44-0x00000000002E0000-0x00000000002FF000-memory.dmp

Filesize
124KB

Download
memory/2764-40-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

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