22542d1aef8c0987be0f91b90e4f70f372cc1b16ed67bbb1582798cac732f538

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
31/08/2024, 04:26

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General

Target
cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe
Size 414KB
Sample240831-e2x8mswbll
SHA256 22542d1aef8c0987be0f91b90e4f70f372cc1b16ed67bbb1582798cac732f538
MD5 cc38e3ac1ca97aefdaf92643c1dc68f3
SHA1 3f80d544c9e3b789db490a13c86dc5cd61682bc2
SHA512 04c876e75e495e1dad18c06d669c2965feaa25d454fa54dc754091effc67c4704a78c10a53185b0cdb4e2cc3b5ca9ab6854632205539e6853dbd84e1b4f79235
SSDEEP 6144:w31JnqbGb0cd0yGdXeEW58hp9b5vwMVO5UWoU8F0:w3Hqb3meXe0loWkUl
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

discovery persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2904	kemelsystmgr.exe

Loads dropped DLL 1 IoCs

pid	Process
2640	cmd.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\systemkemel = "C:\\Users\\Admin\\AppData\\Local\\kemelsystmgr.exe"	kemelsystmgr.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kemelsystmgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2416	cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe
Token: SeDebugPrivilege	2904	kemelsystmgr.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2416 wrote to memory of 2804	2416	cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe	31
PID 2416 wrote to memory of 2804	2416	cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe	31
PID 2416 wrote to memory of 2804	2416	cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe	31
PID 2416 wrote to memory of 2804	2416	cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe	31
PID 2416 wrote to memory of 2640	2416	cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe	33
PID 2416 wrote to memory of 2640	2416	cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe	33
PID 2416 wrote to memory of 2640	2416	cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe	33
PID 2416 wrote to memory of 2640	2416	cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe	33
PID 2640 wrote to memory of 2904	2640	cmd.exe	35
PID 2640 wrote to memory of 2904	2640	cmd.exe	35
PID 2640 wrote to memory of 2904	2640	cmd.exe	35
PID 2640 wrote to memory of 2904	2640	cmd.exe	35
PID 2904 wrote to memory of 1864	2904	kemelsystmgr.exe	36
PID 2904 wrote to memory of 1864	2904	kemelsystmgr.exe	36
PID 2904 wrote to memory of 1864	2904	kemelsystmgr.exe	36
PID 2904 wrote to memory of 1864	2904	kemelsystmgr.exe	36
PID 2904 wrote to memory of 1864	2904	kemelsystmgr.exe	36
PID 2904 wrote to memory of 1864	2904	kemelsystmgr.exe	36
PID 2904 wrote to memory of 1864	2904	kemelsystmgr.exe	36

C:\Users\Admin\AppData\Local\Temp\cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2416
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Local\Temp\cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe" "C:\Users\Admin\AppData\Local\kemelsystmgr.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2804
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c, "C:\Users\Admin\AppData\Local\kemelsystmgr.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2640
- - C:\Users\Admin\AppData\Local\kemelsystmgr.exe
    "C:\Users\Admin\AppData\Local\kemelsystmgr.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2904
  - - C:\Users\Admin\AppData\Local\kemelsystmgr.exe
      "C:\Users\Admin\AppData\Local\kemelsystmgr.exe"
      4⤵
      PID:1864

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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kemelsystmgr.exe

Path C:\Users\Admin\AppData\Local\kemelsystmgr.exe
Size 414KB
SHA256 22542d1aef8c0987be0f91b90e4f70f372cc1b16ed67bbb1582798cac732f538
MD5 cc38e3ac1ca97aefdaf92643c1dc68f3
SHA1 3f80d544c9e3b789db490a13c86dc5cd61682bc2
SHA512 04c876e75e495e1dad18c06d669c2965feaa25d454fa54dc754091effc67c4704a78c10a53185b0cdb4e2cc3b5ca9ab6854632205539e6853dbd84e1b4f79235
SSDEEP 6144:w31JnqbGb0cd0yGdXeEW58hp9b5vwMVO5UWoU8F0:w3Hqb3meXe0loWkUl
MD5 SHA1 SHA512 SSDEEP

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memory/1864-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

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memory/1864-19-0x0000000000400000-0x000000000042A000-memory.dmp

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memory/1864-16-0x0000000000400000-0x000000000042A000-memory.dmp

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memory/2416-4-0x000000007437E000-0x000000007437F000-memory.dmp

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memory/2416-5-0x0000000074370000-0x0000000074A5E000-memory.dmp

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memory/2416-8-0x0000000074370000-0x0000000074A5E000-memory.dmp

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memory/2416-0-0x000000007437E000-0x000000007437F000-memory.dmp

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memory/2416-3-0x0000000074370000-0x0000000074A5E000-memory.dmp

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memory/2416-2-0x0000000000420000-0x000000000043A000-memory.dmp

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memory/2416-1-0x0000000001000000-0x000000000106E000-memory.dmp

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memory/2904-12-0x00000000010D0000-0x000000000113E000-memory.dmp

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memory/2904-13-0x0000000074320000-0x0000000074A0E000-memory.dmp

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memory/2904-14-0x0000000074320000-0x0000000074A0E000-memory.dmp

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memory/2904-15-0x0000000074320000-0x0000000074A0E000-memory.dmp

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memory/2904-21-0x0000000074320000-0x0000000074A0E000-memory.dmp

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memory/2904-22-0x0000000074320000-0x0000000074A0E000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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