57b0d2464f45f8a06458bba0258ee837e17bb7bcd8ca2126ba496b1aa8882a03

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240704-en
resource tags

arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
submitted
27/07/2024, 06:46

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General

Target

7740340d1b530b015df56a67d89e4b82_JaffaCakes118.exe
Size

55KB
MD5

7740340d1b530b015df56a67d89e4b82
SHA1

21714d431f2e569ddeddb9551b746d248edea359
SHA256

57b0d2464f45f8a06458bba0258ee837e17bb7bcd8ca2126ba496b1aa8882a03
SHA512

0f7d8d2485e1ceb12a461a1cd7359e934cc6ce3914b8f0734d3f52fb39cdf3a3e780f1430e35394fa56f72a32d4892729ff00384c0984b892a5a8ecd9faacd0a
SSDEEP

1536:aZsMdhglKOz2lMQl3RfAaosNUA/0RzwmtuTEIqkR6E1:aZsSUgnl3RfAaorRYTEk91

Score

7^/10

discovery persistence upx

Malware Config

Signatures

Loads dropped DLL 2 IoCs

pid	Process
1128	7740340d1b530b015df56a67d89e4b82_JaffaCakes118.exe
216	rundll32.exe

UPX packed file 10 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/1128-3-0x0000000000400000-0x0000000000410976-memory.dmp	upx
behavioral2/memory/1128-2-0x0000000000400000-0x0000000000410976-memory.dmp	upx
behavioral2/memory/1128-5-0x0000000000400000-0x0000000000410976-memory.dmp	upx
behavioral2/memory/1128-13-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/1128-11-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/1128-12-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/1128-19-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/216-29-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/216-33-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/216-34-0x0000000010000000-0x0000000010014000-memory.dmp	upx

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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MSServer = "rundll32.exe C:\\Windows\\system32\\ljJATMFX.dll,#1"	rundll32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\ljJATMFX.dll	7740340d1b530b015df56a67d89e4b82_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\ljJBuutU.dll	7740340d1b530b015df56a67d89e4b82_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\ljJBuutU.dll	7740340d1b530b015df56a67d89e4b82_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\ljJATMFX.dll	7740340d1b530b015df56a67d89e4b82_JaffaCakes118.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	7740340d1b530b015df56a67d89e4b82_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8C57CB69-EC1F-4FF3-916F-52151AABC187}	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8C57CB69-EC1F-4FF3-916F-52151AABC187}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8C57CB69-EC1F-4FF3-916F-52151AABC187}\InprocServer32\ = "C:\\Windows\\SysWow64\\ljJATMFX.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8C57CB69-EC1F-4FF3-916F-52151AABC187}\InprocServer32\ThreadingModel = "Both"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1128	7740340d1b530b015df56a67d89e4b82_JaffaCakes118.exe
1128	7740340d1b530b015df56a67d89e4b82_JaffaCakes118.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe
216	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1128	7740340d1b530b015df56a67d89e4b82_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1128	7740340d1b530b015df56a67d89e4b82_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1128 wrote to memory of 616	1128	7740340d1b530b015df56a67d89e4b82_JaffaCakes118.exe	5
PID 1128 wrote to memory of 216	1128	7740340d1b530b015df56a67d89e4b82_JaffaCakes118.exe	96
PID 1128 wrote to memory of 216	1128	7740340d1b530b015df56a67d89e4b82_JaffaCakes118.exe	96
PID 1128 wrote to memory of 216	1128	7740340d1b530b015df56a67d89e4b82_JaffaCakes118.exe	96
PID 1128 wrote to memory of 1828	1128	7740340d1b530b015df56a67d89e4b82_JaffaCakes118.exe	97
PID 1128 wrote to memory of 1828	1128	7740340d1b530b015df56a67d89e4b82_JaffaCakes118.exe	97
PID 1128 wrote to memory of 1828	1128	7740340d1b530b015df56a67d89e4b82_JaffaCakes118.exe	97

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:616

C:\Users\Admin\AppData\Local\Temp\7740340d1b530b015df56a67d89e4b82_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\7740340d1b530b015df56a67d89e4b82_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1128
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Windows\system32\ljJATMFX.dll,a
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  PID:216
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\removalfile.bat "C:\Users\Admin\AppData\Local\Temp\7740340d1b530b015df56a67d89e4b82_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1828

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 Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\removalfile.bat

Filesize
43B

MD5
9a7ef09167a6f4433681b94351509043

SHA1
259b1375ed8e84943ca1d42646bb416325c89e12

SHA256
d5739a0510d89da572eb0b0d394d4fb4dd361cd9ee0144b9b31c590df93c3be7

SHA512
96b84cd88a0e4b7c1122af3ed6ce5edf0a9a4e9bf79575eadfac16b2c46f1278d57755d29f21d7c6dcb4403be24b7ac7da4837c6cc9c602342a8f2b8e54883df

Download Submit
C:\Windows\SysWOW64\ljJBuutU.dll

Filesize
34KB

MD5
d86383a98d4e1b41a795488ea084a566

SHA1
77f598268c3340839dd13d19d742b63e00c3ada4

SHA256
4d1cb47050f12fd579faeac3596ab124c4e3c17ae09f8a2b31b3c7a2f1ec0ea7

SHA512
d7a27113f168986e65ce8f2fa849cc771439093f6f43f56ed92e39dae95d2d05c359b710eba279191beae8ced3de9a9f880fca3f5642d6b3702f84d6a71ac669

Download Submit
memory/216-37-0x000000001000E000-0x0000000010013000-memory.dmp

Filesize
20KB

Download
memory/216-36-0x0000000000DE0000-0x0000000000DE7000-memory.dmp

Filesize
28KB

Download
memory/216-34-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/216-33-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/216-29-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/216-30-0x0000000000DE0000-0x0000000000DE7000-memory.dmp

Filesize
28KB

Download
memory/216-31-0x000000001000E000-0x0000000010013000-memory.dmp

Filesize
20KB

Download
memory/1128-5-0x0000000000400000-0x0000000000410976-memory.dmp

Filesize
66KB

Download
memory/1128-19-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/1128-12-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/1128-11-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/1128-13-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/1128-4-0x0000000000407000-0x0000000000410000-memory.dmp

Filesize
36KB

Download
memory/1128-0-0x0000000000400000-0x0000000000410976-memory.dmp

Filesize
66KB

Download
memory/1128-2-0x0000000000400000-0x0000000000410976-memory.dmp

Filesize
66KB

Download
memory/1128-3-0x0000000000400000-0x0000000000410976-memory.dmp

Filesize
66KB

Download
memory/1128-1-0x00000000005A0000-0x00000000005AC000-memory.dmp

Filesize
48KB

Download