e5dfed3f665d93160eb7ed7c3abaa39ca23c6768e44a23d6cf60804530c4742a

Analysis

max time kernel
120s
max time network
19s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
22/07/2024, 23:29

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General

Target

2b5a6fe14376cbb5dc3ccc73aec34110N.exe
Size

135KB
MD5

2b5a6fe14376cbb5dc3ccc73aec34110
SHA1

e6df196f3a11432091fd329d8a0f7b2cc9abf9c4
SHA256

e5dfed3f665d93160eb7ed7c3abaa39ca23c6768e44a23d6cf60804530c4742a
SHA512

14eb250c9a7df54f531fd6fc1dd88f6de40795aa227af67bb5f5e23db20b450a3cced267af0ce17279920ea9601cacf8102712739338c1723f5d06a6181e46b0
SSDEEP

1536:4fsEqouTRcG/Mzvgf7xEuvnXNTRdUzwTekUOisZ1yDDajtXbVgEhu:4VqoCl/YgjxEufVU0TbTyDDalquu

Score

10^/10

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-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe

Executes dropped EXE 4 IoCs

pid	Process
2756	explorer.exe
2916	spoolsv.exe
2852	svchost.exe
2776	spoolsv.exe

Loads dropped DLL 4 IoCs

pid	Process
2012	2b5a6fe14376cbb5dc3ccc73aec34110N.exe
2756	explorer.exe
2916	spoolsv.exe
2852	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

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\windows\resources\themes\explorer.exe	2b5a6fe14376cbb5dc3ccc73aec34110N.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

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
2384	schtasks.exe
2612	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2012	2b5a6fe14376cbb5dc3ccc73aec34110N.exe
2012	2b5a6fe14376cbb5dc3ccc73aec34110N.exe
2012	2b5a6fe14376cbb5dc3ccc73aec34110N.exe
2012	2b5a6fe14376cbb5dc3ccc73aec34110N.exe
2012	2b5a6fe14376cbb5dc3ccc73aec34110N.exe
2012	2b5a6fe14376cbb5dc3ccc73aec34110N.exe
2012	2b5a6fe14376cbb5dc3ccc73aec34110N.exe
2012	2b5a6fe14376cbb5dc3ccc73aec34110N.exe
2012	2b5a6fe14376cbb5dc3ccc73aec34110N.exe
2012	2b5a6fe14376cbb5dc3ccc73aec34110N.exe
2012	2b5a6fe14376cbb5dc3ccc73aec34110N.exe
2012	2b5a6fe14376cbb5dc3ccc73aec34110N.exe
2012	2b5a6fe14376cbb5dc3ccc73aec34110N.exe
2012	2b5a6fe14376cbb5dc3ccc73aec34110N.exe
2012	2b5a6fe14376cbb5dc3ccc73aec34110N.exe
2012	2b5a6fe14376cbb5dc3ccc73aec34110N.exe
2012	2b5a6fe14376cbb5dc3ccc73aec34110N.exe
2756	explorer.exe
2756	explorer.exe
2756	explorer.exe
2756	explorer.exe
2756	explorer.exe
2756	explorer.exe
2756	explorer.exe
2756	explorer.exe
2756	explorer.exe
2756	explorer.exe
2756	explorer.exe
2756	explorer.exe
2756	explorer.exe
2756	explorer.exe
2756	explorer.exe
2756	explorer.exe
2852	svchost.exe
2852	svchost.exe
2852	svchost.exe
2852	svchost.exe
2852	svchost.exe
2852	svchost.exe
2852	svchost.exe
2852	svchost.exe
2852	svchost.exe
2852	svchost.exe
2852	svchost.exe
2852	svchost.exe
2852	svchost.exe
2852	svchost.exe
2852	svchost.exe
2852	svchost.exe
2756	explorer.exe
2756	explorer.exe
2756	explorer.exe
2852	svchost.exe
2852	svchost.exe
2756	explorer.exe
2852	svchost.exe
2756	explorer.exe
2756	explorer.exe
2852	svchost.exe
2756	explorer.exe
2852	svchost.exe
2756	explorer.exe
2852	svchost.exe
2756	explorer.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2756	explorer.exe
2852	svchost.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
2012	2b5a6fe14376cbb5dc3ccc73aec34110N.exe
2012	2b5a6fe14376cbb5dc3ccc73aec34110N.exe
2756	explorer.exe
2756	explorer.exe
2916	spoolsv.exe
2916	spoolsv.exe
2852	svchost.exe
2852	svchost.exe
2776	spoolsv.exe
2776	spoolsv.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2012 wrote to memory of 2756	2012	2b5a6fe14376cbb5dc3ccc73aec34110N.exe	30
PID 2012 wrote to memory of 2756	2012	2b5a6fe14376cbb5dc3ccc73aec34110N.exe	30
PID 2012 wrote to memory of 2756	2012	2b5a6fe14376cbb5dc3ccc73aec34110N.exe	30
PID 2012 wrote to memory of 2756	2012	2b5a6fe14376cbb5dc3ccc73aec34110N.exe	30
PID 2756 wrote to memory of 2916	2756	explorer.exe	31
PID 2756 wrote to memory of 2916	2756	explorer.exe	31
PID 2756 wrote to memory of 2916	2756	explorer.exe	31
PID 2756 wrote to memory of 2916	2756	explorer.exe	31
PID 2916 wrote to memory of 2852	2916	spoolsv.exe	32
PID 2916 wrote to memory of 2852	2916	spoolsv.exe	32
PID 2916 wrote to memory of 2852	2916	spoolsv.exe	32
PID 2916 wrote to memory of 2852	2916	spoolsv.exe	32
PID 2852 wrote to memory of 2776	2852	svchost.exe	33
PID 2852 wrote to memory of 2776	2852	svchost.exe	33
PID 2852 wrote to memory of 2776	2852	svchost.exe	33
PID 2852 wrote to memory of 2776	2852	svchost.exe	33
PID 2756 wrote to memory of 2752	2756	explorer.exe	34
PID 2756 wrote to memory of 2752	2756	explorer.exe	34
PID 2756 wrote to memory of 2752	2756	explorer.exe	34
PID 2756 wrote to memory of 2752	2756	explorer.exe	34
PID 2852 wrote to memory of 2612	2852	svchost.exe	35
PID 2852 wrote to memory of 2612	2852	svchost.exe	35
PID 2852 wrote to memory of 2612	2852	svchost.exe	35
PID 2852 wrote to memory of 2612	2852	svchost.exe	35
PID 2852 wrote to memory of 2384	2852	svchost.exe	38
PID 2852 wrote to memory of 2384	2852	svchost.exe	38
PID 2852 wrote to memory of 2384	2852	svchost.exe	38
PID 2852 wrote to memory of 2384	2852	svchost.exe	38

C:\Users\Admin\AppData\Local\Temp\2b5a6fe14376cbb5dc3ccc73aec34110N.exe
"C:\Users\Admin\AppData\Local\Temp\2b5a6fe14376cbb5dc3ccc73aec34110N.exe"
1⤵
- Loads dropped DLL
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2012
- \??\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
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2756
- - \??\c:\windows\resources\spoolsv.exe
    c:\windows\resources\spoolsv.exe SE
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Drops file in Windows directory
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2916
  - - \??\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 behavior: EnumeratesProcesses
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:2852
    - - \??\c:\windows\resources\spoolsv.exe
        
        c:\windows\resources\spoolsv.exe PR
        5⤵
        Executes dropped EXE
        Suspicious use of SetWindowsHookEx
        
        PID:2776
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 23:31 /f
        5⤵
        Scheduled Task/Job: Scheduled Task
        
        PID:2612
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 23:32 /f
        5⤵
        Scheduled Task/Job: Scheduled Task
        
        PID:2384
- - C:\Windows\Explorer.exe
    C:\Windows\Explorer.exe
    3⤵
    PID:2752

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\Resources\spoolsv.exe

Filesize
135KB

MD5
c88ffcc7c2f8f6c41203e3998dfe647b

SHA1
40aee9e36c7e977911a001cee019c2ce9fe13995

SHA256
426033ccec0b4de5f6b4c4a39fb2553ccd9f20415fb1e6db6596a5ca7f7eb7b5

SHA512
5b08569fd9e086b478059715c567b60cebd0c120aaeb196eccd835e4d808a76508459cce940ba8db6a7d7505d8407a310c5b929e4338f3f1dd53cc59d37ca172

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

Filesize
135KB

MD5
dbb3a6db6ff23d551e14f354ef03d32c

SHA1
8bb96dbe3bf538a2e6909e4a79c7b8d4be0ea42c

SHA256
176cdbe764738718769bdfe3eda7067d2dfa05a640e4296893147678e5aaccf7

SHA512
d619be1c9cf4f679ab86e475ae94696605220c338ce3b769dc47ba3ff72519fc3437bd2b057c50b6f8c2f66d6c2a005c36f34608d47e1fc7724f7578a366368e

Download Submit
\Windows\Resources\svchost.exe

Filesize
135KB

MD5
154821bccb874818567f71684883435c

SHA1
84d1e8773ca496b7e4c5cd9f1de8ec8042940826

SHA256
1505f25356fcc15e19d2b78e0691e712b1d19108a6ea71ef70eccba004946a8e

SHA512
67c9dea3e7c09b8354372b0b23c20d9884a681dbba53dd2ca416a5ad79c16a260293939ddfb6fa8dac7ca829a7c5c85e9c8287082c36c78443a149e8009b3ff6

Download Submit
memory/2012-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2012-41-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2776-40-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2852-35-0x0000000000270000-0x000000000028F000-memory.dmp

Filesize
124KB

Download