Analysis
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max time kernel
77s -
max time network
80s -
platform
windows7_x64 -
resource
win7-20240215-en -
resource tags
arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system -
submitted
25-04-2024 03:17
Static task
static1
Behavioral task
behavioral1
Sample
pukix.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
pukix.exe
Resource
win10-20240404-en
General
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Target
pukix.exe
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Size
1.0MB
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MD5
7c93e4041e21ef8e4d45f7343abcae94
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SHA1
146bc0e573b4dca3f38c147477e6c7fcabe536b3
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SHA256
2c82e9c61a9213ce1a25357b667d6929772bc8ad4324db38e8dd7f00c00eacc6
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SHA512
75903fabcf9c645f5caad2494c677d8e7e3c7a1d8a39e400fa8aea685d32e3253f0ce0423af4dba99a7e5a054b69ef48b5475d814de539574b2192794fcfedda
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SSDEEP
24576:ykMXdjSpUjdjKIDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDr:yBXhSq1PDDDDDDDDDDDDDDDDDDDDDDD7
Malware Config
Extracted
tofsee
43.231.4.7
lazystax.ru
Signatures
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Processes:
svchost.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\mmendqp = "0" svchost.exe -
Creates new service(s) 1 TTPs
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Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 2432 netsh.exe -
Sets service image path in registry 2 TTPs 1 IoCs
Processes:
svchost.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\mmendqp\ImagePath = "C:\\Windows\\SysWOW64\\mmendqp\\rtmxemaq.exe" svchost.exe -
Deletes itself 1 IoCs
Processes:
svchost.exepid process 2876 svchost.exe -
Executes dropped EXE 1 IoCs
Processes:
rtmxemaq.exepid process 2548 rtmxemaq.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
rtmxemaq.exedescription pid process target process PID 2548 set thread context of 2876 2548 rtmxemaq.exe svchost.exe -
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exesc.exesc.exepid process 2528 sc.exe 2640 sc.exe 2516 sc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 30 IoCs
Processes:
pukix.exertmxemaq.exedescription pid process target process PID 2564 wrote to memory of 2520 2564 pukix.exe cmd.exe PID 2564 wrote to memory of 2520 2564 pukix.exe cmd.exe PID 2564 wrote to memory of 2520 2564 pukix.exe cmd.exe PID 2564 wrote to memory of 2520 2564 pukix.exe cmd.exe PID 2564 wrote to memory of 2596 2564 pukix.exe cmd.exe PID 2564 wrote to memory of 2596 2564 pukix.exe cmd.exe PID 2564 wrote to memory of 2596 2564 pukix.exe cmd.exe PID 2564 wrote to memory of 2596 2564 pukix.exe cmd.exe PID 2564 wrote to memory of 2528 2564 pukix.exe sc.exe PID 2564 wrote to memory of 2528 2564 pukix.exe sc.exe PID 2564 wrote to memory of 2528 2564 pukix.exe sc.exe PID 2564 wrote to memory of 2528 2564 pukix.exe sc.exe PID 2564 wrote to memory of 2640 2564 pukix.exe sc.exe PID 2564 wrote to memory of 2640 2564 pukix.exe sc.exe PID 2564 wrote to memory of 2640 2564 pukix.exe sc.exe PID 2564 wrote to memory of 2640 2564 pukix.exe sc.exe PID 2564 wrote to memory of 2516 2564 pukix.exe sc.exe PID 2564 wrote to memory of 2516 2564 pukix.exe sc.exe PID 2564 wrote to memory of 2516 2564 pukix.exe sc.exe PID 2564 wrote to memory of 2516 2564 pukix.exe sc.exe PID 2564 wrote to memory of 2432 2564 pukix.exe netsh.exe PID 2564 wrote to memory of 2432 2564 pukix.exe netsh.exe PID 2564 wrote to memory of 2432 2564 pukix.exe netsh.exe PID 2564 wrote to memory of 2432 2564 pukix.exe netsh.exe PID 2548 wrote to memory of 2876 2548 rtmxemaq.exe svchost.exe PID 2548 wrote to memory of 2876 2548 rtmxemaq.exe svchost.exe PID 2548 wrote to memory of 2876 2548 rtmxemaq.exe svchost.exe PID 2548 wrote to memory of 2876 2548 rtmxemaq.exe svchost.exe PID 2548 wrote to memory of 2876 2548 rtmxemaq.exe svchost.exe PID 2548 wrote to memory of 2876 2548 rtmxemaq.exe svchost.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\pukix.exe"C:\Users\Admin\AppData\Local\Temp\pukix.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mmendqp\2⤵
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rtmxemaq.exe" C:\Windows\SysWOW64\mmendqp\2⤵
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create mmendqp binPath= "C:\Windows\SysWOW64\mmendqp\rtmxemaq.exe /d\"C:\Users\Admin\AppData\Local\Temp\pukix.exe\"" type= own start= auto DisplayName= "wifi support"2⤵
- Launches sc.exe
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" description mmendqp "wifi internet conection"2⤵
- Launches sc.exe
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start mmendqp2⤵
- Launches sc.exe
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C:\Windows\SysWOW64\netsh.exe"C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul2⤵
- Modifies Windows Firewall
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C:\Windows\SysWOW64\mmendqp\rtmxemaq.exeC:\Windows\SysWOW64\mmendqp\rtmxemaq.exe /d"C:\Users\Admin\AppData\Local\Temp\pukix.exe"1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
Network
MITRE ATT&CK Matrix ATT&CK v13
Persistence
Create or Modify System Process
2Windows Service
2Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Privilege Escalation
Create or Modify System Process
2Windows Service
2Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\rtmxemaq.exeFilesize
13.3MB
MD5b8aab9e676b7fb1ddb9ddb81cf38af96
SHA1ffa0db0a885341067679ab48b252903dc3ed881c
SHA25688940f33a56e7567380122166da27cd937c83a45cf712d1999fcca5b52745d3d
SHA5122468d4cc04ac05468268dac17e7dac71132f702ccfa7d1d128fc8b9fb19d53fb0594ceb5eedd3a23825d6d094fcfefa4bf1e5c2d671321076974f9d4e01972bc
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memory/2548-10-0x00000000004E0000-0x00000000005E0000-memory.dmpFilesize
1024KB
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memory/2548-18-0x0000000000400000-0x000000000046C000-memory.dmpFilesize
432KB
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memory/2548-12-0x0000000000400000-0x000000000046C000-memory.dmpFilesize
432KB
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memory/2564-7-0x0000000000400000-0x000000000046C000-memory.dmpFilesize
432KB
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memory/2564-9-0x0000000000290000-0x0000000000390000-memory.dmpFilesize
1024KB
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memory/2564-1-0x0000000000290000-0x0000000000390000-memory.dmpFilesize
1024KB
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memory/2564-11-0x00000000001B0000-0x00000000001C3000-memory.dmpFilesize
76KB
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memory/2564-3-0x0000000000400000-0x000000000046C000-memory.dmpFilesize
432KB
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memory/2564-2-0x00000000001B0000-0x00000000001C3000-memory.dmpFilesize
76KB
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memory/2876-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmpFilesize
4KB
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memory/2876-13-0x0000000000080000-0x0000000000095000-memory.dmpFilesize
84KB
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memory/2876-16-0x0000000000080000-0x0000000000095000-memory.dmpFilesize
84KB
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memory/2876-20-0x0000000000080000-0x0000000000095000-memory.dmpFilesize
84KB
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memory/2876-21-0x0000000000080000-0x0000000000095000-memory.dmpFilesize
84KB
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memory/2876-22-0x0000000000080000-0x0000000000095000-memory.dmpFilesize
84KB
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memory/2876-23-0x0000000000080000-0x0000000000095000-memory.dmpFilesize
84KB