Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
16-04-2024 08:18
Static task
static1
Behavioral task
behavioral1
Sample
f313185687c6097504477b7f37195cdf_JaffaCakes118.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
f313185687c6097504477b7f37195cdf_JaffaCakes118.exe
Resource
win10v2004-20240412-en
General
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Target
f313185687c6097504477b7f37195cdf_JaffaCakes118.exe
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Size
11.5MB
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MD5
f313185687c6097504477b7f37195cdf
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SHA1
fe641fc06084e7289b9981cd907fce4368b91e23
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SHA256
560fc803cd88d0362d75b40fc0b3513330ff754c4d3115a7675aefb4b08fa36f
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SHA512
8885b3fa9f3026717953797178a2c2bf4cb4c22bebf9d343e2f13a132c8e2cd90595fa66a28cfc5f1236e097046150db84b80142a437ed61faa7cda61e538ea0
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SSDEEP
49152:ljrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr:V
Malware Config
Extracted
tofsee
43.231.4.7
lazystax.ru
Signatures
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Creates new service(s) 1 TTPs
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Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 1428 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\gaykosmw\ImagePath = "C:\\Windows\\SysWOW64\\gaykosmw\\zlmgbxyv.exe" svchost.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
f313185687c6097504477b7f37195cdf_JaffaCakes118.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000\Control Panel\International\Geo\Nation f313185687c6097504477b7f37195cdf_JaffaCakes118.exe -
Deletes itself 1 IoCs
Processes:
svchost.exepid process 1956 svchost.exe -
Executes dropped EXE 1 IoCs
Processes:
zlmgbxyv.exepid process 2556 zlmgbxyv.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
zlmgbxyv.exedescription pid process target process PID 2556 set thread context of 1956 2556 zlmgbxyv.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 2032 sc.exe 1464 sc.exe 1828 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 23 IoCs
Processes:
f313185687c6097504477b7f37195cdf_JaffaCakes118.exezlmgbxyv.exedescription pid process target process PID 2804 wrote to memory of 2164 2804 f313185687c6097504477b7f37195cdf_JaffaCakes118.exe cmd.exe PID 2804 wrote to memory of 2164 2804 f313185687c6097504477b7f37195cdf_JaffaCakes118.exe cmd.exe PID 2804 wrote to memory of 2164 2804 f313185687c6097504477b7f37195cdf_JaffaCakes118.exe cmd.exe PID 2804 wrote to memory of 3784 2804 f313185687c6097504477b7f37195cdf_JaffaCakes118.exe cmd.exe PID 2804 wrote to memory of 3784 2804 f313185687c6097504477b7f37195cdf_JaffaCakes118.exe cmd.exe PID 2804 wrote to memory of 3784 2804 f313185687c6097504477b7f37195cdf_JaffaCakes118.exe cmd.exe PID 2804 wrote to memory of 1828 2804 f313185687c6097504477b7f37195cdf_JaffaCakes118.exe sc.exe PID 2804 wrote to memory of 1828 2804 f313185687c6097504477b7f37195cdf_JaffaCakes118.exe sc.exe PID 2804 wrote to memory of 1828 2804 f313185687c6097504477b7f37195cdf_JaffaCakes118.exe sc.exe PID 2804 wrote to memory of 2032 2804 f313185687c6097504477b7f37195cdf_JaffaCakes118.exe sc.exe PID 2804 wrote to memory of 2032 2804 f313185687c6097504477b7f37195cdf_JaffaCakes118.exe sc.exe PID 2804 wrote to memory of 2032 2804 f313185687c6097504477b7f37195cdf_JaffaCakes118.exe sc.exe PID 2804 wrote to memory of 1464 2804 f313185687c6097504477b7f37195cdf_JaffaCakes118.exe sc.exe PID 2804 wrote to memory of 1464 2804 f313185687c6097504477b7f37195cdf_JaffaCakes118.exe sc.exe PID 2804 wrote to memory of 1464 2804 f313185687c6097504477b7f37195cdf_JaffaCakes118.exe sc.exe PID 2556 wrote to memory of 1956 2556 zlmgbxyv.exe svchost.exe PID 2556 wrote to memory of 1956 2556 zlmgbxyv.exe svchost.exe PID 2556 wrote to memory of 1956 2556 zlmgbxyv.exe svchost.exe PID 2556 wrote to memory of 1956 2556 zlmgbxyv.exe svchost.exe PID 2556 wrote to memory of 1956 2556 zlmgbxyv.exe svchost.exe PID 2804 wrote to memory of 1428 2804 f313185687c6097504477b7f37195cdf_JaffaCakes118.exe netsh.exe PID 2804 wrote to memory of 1428 2804 f313185687c6097504477b7f37195cdf_JaffaCakes118.exe netsh.exe PID 2804 wrote to memory of 1428 2804 f313185687c6097504477b7f37195cdf_JaffaCakes118.exe netsh.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\f313185687c6097504477b7f37195cdf_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\f313185687c6097504477b7f37195cdf_JaffaCakes118.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gaykosmw\2⤵
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zlmgbxyv.exe" C:\Windows\SysWOW64\gaykosmw\2⤵
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create gaykosmw binPath= "C:\Windows\SysWOW64\gaykosmw\zlmgbxyv.exe /d\"C:\Users\Admin\AppData\Local\Temp\f313185687c6097504477b7f37195cdf_JaffaCakes118.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 gaykosmw "wifi internet conection"2⤵
- Launches sc.exe
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start gaykosmw2⤵
- 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\gaykosmw\zlmgbxyv.exeC:\Windows\SysWOW64\gaykosmw\zlmgbxyv.exe /d"C:\Users\Admin\AppData\Local\Temp\f313185687c6097504477b7f37195cdf_JaffaCakes118.exe"1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
- 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\zlmgbxyv.exeFilesize
14.8MB
MD5049211cb5290a21689c5b5c873826c21
SHA150da439f2dcd8a826bbbe453540a99df2397642a
SHA25699d9d8bef4ab1b63c0e5793059c5780a5575b54c3deb13f05823b039fa233568
SHA5120711b0021cfa652bfde05f8f654747dd2240338aabc78a82dc8216912ebdd840f67a27fb43e6889b7d25a389dcb67234edc4ed5ac720a650b04df760ff7aab74
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memory/1956-13-0x0000000000760000-0x0000000000775000-memory.dmpFilesize
84KB
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memory/1956-17-0x0000000000760000-0x0000000000775000-memory.dmpFilesize
84KB
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memory/1956-16-0x0000000000760000-0x0000000000775000-memory.dmpFilesize
84KB
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memory/1956-15-0x0000000000760000-0x0000000000775000-memory.dmpFilesize
84KB
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memory/1956-9-0x0000000000760000-0x0000000000775000-memory.dmpFilesize
84KB
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memory/2556-7-0x0000000000400000-0x000000000041E000-memory.dmpFilesize
120KB
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memory/2556-11-0x0000000000400000-0x000000000041E000-memory.dmpFilesize
120KB
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memory/2804-3-0x0000000002170000-0x0000000002171000-memory.dmpFilesize
4KB
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memory/2804-14-0x0000000000400000-0x000000000041E000-memory.dmpFilesize
120KB
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memory/2804-0-0x0000000000400000-0x000000000041E000-memory.dmpFilesize
120KB
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memory/2804-2-0x0000000002160000-0x0000000002161000-memory.dmpFilesize
4KB
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memory/2804-1-0x0000000000400000-0x000000000041E000-memory.dmpFilesize
120KB