e36c25263c4f61e1580f83d8c155395be74bd4281a55d9f04d0a13fa704b2c3b

Analysis

max time kernel
150s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
01/09/2024, 00:39

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General

Target

cde499054f65dcd55a65a8eaa97798e5_JaffaCakes118.exe
Size

69KB
MD5

cde499054f65dcd55a65a8eaa97798e5
SHA1

d7ffdce31288c7ff4fc0a99153b2628c5a98feee
SHA256

e36c25263c4f61e1580f83d8c155395be74bd4281a55d9f04d0a13fa704b2c3b
SHA512

61bc102b49695d99a88ddf07ba44e057263d79fe90bc88cc6cd14d6e490e5fc03f4ed3369ee54afb3592d6ed5acba22c448fb8ba479e2cb531d954efffe874d1
SSDEEP

1536:2YCaXAyFGiEjhndDT/fm2Z3r0oqHviqt6xwMLKRj8QQ9DJ/SxxNT:qyFbE9ndnnmOfqt6j2Ov9W

Score

7^/10

discovery persistence upx

Malware Config

Signatures

Loads dropped DLL 2 IoCs

pid	Process
2328	cde499054f65dcd55a65a8eaa97798e5_JaffaCakes118.exe
2776	rundll32.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2328-3-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2328-2-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2328-5-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2328-11-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/2328-12-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/2328-13-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/2328-21-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/2776-31-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/2776-34-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/2776-36-0x0000000010000000-0x0000000010014000-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\\xxyxWOfe.dll,#1"	rundll32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\pmnoMedc.dll	cde499054f65dcd55a65a8eaa97798e5_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\pmnoMedc.dll	cde499054f65dcd55a65a8eaa97798e5_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\xxyxWOfe.dll	cde499054f65dcd55a65a8eaa97798e5_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\xxyxWOfe.dll	cde499054f65dcd55a65a8eaa97798e5_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	cde499054f65dcd55a65a8eaa97798e5_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\{516B16E3-E30E-4EF3-B8A8-2E70D4743383}	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{516B16E3-E30E-4EF3-B8A8-2E70D4743383}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{516B16E3-E30E-4EF3-B8A8-2E70D4743383}\InprocServer32\ = "C:\\Windows\\SysWow64\\xxyxWOfe.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{516B16E3-E30E-4EF3-B8A8-2E70D4743383}\InprocServer32\ThreadingModel = "Both"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2328	cde499054f65dcd55a65a8eaa97798e5_JaffaCakes118.exe
2328	cde499054f65dcd55a65a8eaa97798e5_JaffaCakes118.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe
2776	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2328	cde499054f65dcd55a65a8eaa97798e5_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2328	cde499054f65dcd55a65a8eaa97798e5_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2328 wrote to memory of 608	2328	cde499054f65dcd55a65a8eaa97798e5_JaffaCakes118.exe	5
PID 2328 wrote to memory of 2776	2328	cde499054f65dcd55a65a8eaa97798e5_JaffaCakes118.exe	98
PID 2328 wrote to memory of 2776	2328	cde499054f65dcd55a65a8eaa97798e5_JaffaCakes118.exe	98
PID 2328 wrote to memory of 2776	2328	cde499054f65dcd55a65a8eaa97798e5_JaffaCakes118.exe	98
PID 2328 wrote to memory of 944	2328	cde499054f65dcd55a65a8eaa97798e5_JaffaCakes118.exe	99
PID 2328 wrote to memory of 944	2328	cde499054f65dcd55a65a8eaa97798e5_JaffaCakes118.exe	99
PID 2328 wrote to memory of 944	2328	cde499054f65dcd55a65a8eaa97798e5_JaffaCakes118.exe	99

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:608

C:\Users\Admin\AppData\Local\Temp\cde499054f65dcd55a65a8eaa97798e5_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cde499054f65dcd55a65a8eaa97798e5_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:2328
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Windows\system32\xxyxWOfe.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:2776
- 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\cde499054f65dcd55a65a8eaa97798e5_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:944

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\pmnoMedc.dll

Filesize
40KB

MD5
59d97f09eff411a51d3e43d3a2521a58

SHA1
2b87d4917dd0a0803af406a418a82c7ea1e5b71b

SHA256
4fb46b40c6c64a32dfc91fd6beea78d049bbf7485d24486e9f0220d6446b2b2b

SHA512
a86f123479d7bb73c866477f48a44df83b563e395d6d283dd532f74aed7b821c2c261f9cb665ede014b86f206f640ae38662340cb83e378ed5d1322d07181bcb

Download Submit
memory/2328-12-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/2328-19-0x0000000000407000-0x0000000000412000-memory.dmp

Filesize
44KB

Download
memory/2328-4-0x0000000000407000-0x0000000000412000-memory.dmp

Filesize
44KB

Download
memory/2328-5-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2328-11-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/2328-3-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2328-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2328-13-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/2328-18-0x0000000000570000-0x000000000057F000-memory.dmp

Filesize
60KB

Download
memory/2328-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2328-21-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/2328-1-0x0000000000570000-0x000000000057F000-memory.dmp

Filesize
60KB

Download
memory/2776-31-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/2776-34-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/2776-33-0x000000001000E000-0x0000000010013000-memory.dmp

Filesize
20KB

Download
memory/2776-32-0x0000000000FE0000-0x0000000000FE8000-memory.dmp

Filesize
32KB

Download
memory/2776-36-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download