6bcd08588071e43d6c69383144bda302f391f5d534eb6106d461ea0bbc86c0af

Analysis

max time kernel
150s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
20/07/2024, 10:12

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General

Target

6010ea64fd02fe70e25b0e6da0b665b9_JaffaCakes118.exe
Size

54KB
MD5

6010ea64fd02fe70e25b0e6da0b665b9
SHA1

abbf71d3d36e8ca01811cd69d6d90dac88a30056
SHA256

6bcd08588071e43d6c69383144bda302f391f5d534eb6106d461ea0bbc86c0af
SHA512

2e080c91af5cfea1816306bc57a491b4e916216e1d1b458bf7b0edf5342937309721fcab69aa07131d55086756b4c511ec144cede9a06238bdc56473cc3a60fa
SSDEEP

1536:g4Qj3hysJHQFeYpoOBNK55x2v1PQapp9OujJGz:gLDHeZ055Mtpp9OSJk

Score

7^/10

persistence upx

Malware Config

Signatures

Loads dropped DLL 2 IoCs

pid	Process
2840	6010ea64fd02fe70e25b0e6da0b665b9_JaffaCakes118.exe
4244	rundll32.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2840-1-0x0000000000400000-0x0000000000410629-memory.dmp	upx
behavioral2/memory/2840-2-0x0000000000400000-0x0000000000410629-memory.dmp	upx
behavioral2/memory/2840-5-0x0000000000400000-0x0000000000410629-memory.dmp	upx
behavioral2/memory/2840-11-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/2840-13-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/2840-12-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/2840-19-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/4244-29-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/4244-32-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/4244-34-0x0000000010000000-0x0000000010014000-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\\ddcBRlkI.dll,#1"	rundll32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\ddcBRlkI.dll	6010ea64fd02fe70e25b0e6da0b665b9_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\iifgFVnN.dll	6010ea64fd02fe70e25b0e6da0b665b9_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\iifgFVnN.dll	6010ea64fd02fe70e25b0e6da0b665b9_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\ddcBRlkI.dll	6010ea64fd02fe70e25b0e6da0b665b9_JaffaCakes118.exe

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{24DAAFB8-B7F5-463F-88C1-D497611FC253}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{24DAAFB8-B7F5-463F-88C1-D497611FC253}\InprocServer32\ = "C:\\Windows\\SysWow64\\ddcBRlkI.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{24DAAFB8-B7F5-463F-88C1-D497611FC253}\InprocServer32\ThreadingModel = "Both"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{24DAAFB8-B7F5-463F-88C1-D497611FC253}	rundll32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2840	6010ea64fd02fe70e25b0e6da0b665b9_JaffaCakes118.exe
2840	6010ea64fd02fe70e25b0e6da0b665b9_JaffaCakes118.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2840	6010ea64fd02fe70e25b0e6da0b665b9_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2840	6010ea64fd02fe70e25b0e6da0b665b9_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2840 wrote to memory of 616	2840	6010ea64fd02fe70e25b0e6da0b665b9_JaffaCakes118.exe	5
PID 2840 wrote to memory of 4244	2840	6010ea64fd02fe70e25b0e6da0b665b9_JaffaCakes118.exe	95
PID 2840 wrote to memory of 4244	2840	6010ea64fd02fe70e25b0e6da0b665b9_JaffaCakes118.exe	95
PID 2840 wrote to memory of 4244	2840	6010ea64fd02fe70e25b0e6da0b665b9_JaffaCakes118.exe	95
PID 2840 wrote to memory of 2716	2840	6010ea64fd02fe70e25b0e6da0b665b9_JaffaCakes118.exe	96
PID 2840 wrote to memory of 2716	2840	6010ea64fd02fe70e25b0e6da0b665b9_JaffaCakes118.exe	96
PID 2840 wrote to memory of 2716	2840	6010ea64fd02fe70e25b0e6da0b665b9_JaffaCakes118.exe	96

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

C:\Users\Admin\AppData\Local\Temp\6010ea64fd02fe70e25b0e6da0b665b9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\6010ea64fd02fe70e25b0e6da0b665b9_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2840
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Windows\system32\ddcBRlkI.dll,a
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  PID:4244
- 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\6010ea64fd02fe70e25b0e6da0b665b9_JaffaCakes118.exe"
  2⤵
  PID:2716

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

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\iifgFVnN.dll

Filesize
35KB

MD5
b47c38fb285ce6ced97f76198e4af5b4

SHA1
408735a0c5f82a661eaafe9a950b7ab1e531aa37

SHA256
3825abf0209cf011116ee1362363d9f275f1bc7cd88ff2b5e746519daf6fed01

SHA512
3e0f90fa7b5f002b426fcbcf464c4edfd0ad0e70cf00f3c5101cfa417d916c12ac91df6e66b12e765234f49a6fd3c87f3497731d0a6e150f2bcff89a4aa44ac8

Download Submit
memory/2840-13-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/2840-12-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/2840-4-0x0000000000407000-0x0000000000410000-memory.dmp

Filesize
36KB

Download
memory/2840-5-0x0000000000400000-0x0000000000410629-memory.dmp

Filesize
65KB

Download
memory/2840-2-0x0000000000400000-0x0000000000410629-memory.dmp

Filesize
65KB

Download
memory/2840-11-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/2840-0-0x0000000000400000-0x0000000000410629-memory.dmp

Filesize
65KB

Download
memory/2840-3-0x00000000005C0000-0x00000000005CC000-memory.dmp

Filesize
48KB

Download
memory/2840-19-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/2840-1-0x0000000000400000-0x0000000000410629-memory.dmp

Filesize
65KB

Download
memory/4244-29-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/4244-31-0x000000001000E000-0x0000000010013000-memory.dmp

Filesize
20KB

Download
memory/4244-32-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/4244-30-0x00000000005C0000-0x00000000005C7000-memory.dmp

Filesize
28KB

Download
memory/4244-34-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download