02d4b737710e691f6de87270584e301f053f85cee178dfa98394f88428e2579b

Analysis

max time kernel
149s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
15/07/2024, 13:04

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General

Target

49e6273aa4018fdc50c23134ed43899f_JaffaCakes118.exe
Size

56KB
MD5

49e6273aa4018fdc50c23134ed43899f
SHA1

1658e140cad9ee0b867bd161d8af732adfcfe8e7
SHA256

02d4b737710e691f6de87270584e301f053f85cee178dfa98394f88428e2579b
SHA512

64f35d825ebb5b948e7339a4254c61491db8c08829d99f4d6970042602b64fb89717225fa9f41496ef64e5d81f0abc2246405886a3d40539554a91eddf585b4f
SSDEEP

1536:A61/zZjmKlMhE9ZtxHw7LkQmPBjOgUJhBfN+aJSG89Q:1hXlMGxzQmd5a

Score

7^/10

persistence upx

Malware Config

Signatures

Loads dropped DLL 2 IoCs

pid	Process
4400	49e6273aa4018fdc50c23134ed43899f_JaffaCakes118.exe
1420	rundll32.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4400-1-0x0000000000400000-0x0000000000411E94-memory.dmp	upx
behavioral2/memory/4400-2-0x0000000000400000-0x0000000000411E94-memory.dmp	upx
behavioral2/memory/4400-5-0x0000000000400000-0x0000000000411E94-memory.dmp	upx
behavioral2/memory/4400-12-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/4400-11-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/4400-13-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/4400-19-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/1420-29-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/1420-33-0x0000000010000000-0x0000000010014000-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\\fccywtuR.dll,#1"	rundll32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\fccywtuR.dll	49e6273aa4018fdc50c23134ed43899f_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\rqRLcBqN.dll	49e6273aa4018fdc50c23134ed43899f_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\rqRLcBqN.dll	49e6273aa4018fdc50c23134ed43899f_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\fccywtuR.dll	49e6273aa4018fdc50c23134ed43899f_JaffaCakes118.exe

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E525B124-28E1-4D57-B784-B2AABFBBFA66}	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E525B124-28E1-4D57-B784-B2AABFBBFA66}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E525B124-28E1-4D57-B784-B2AABFBBFA66}\InprocServer32\ = "C:\\Windows\\SysWow64\\fccywtuR.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E525B124-28E1-4D57-B784-B2AABFBBFA66}\InprocServer32\ThreadingModel = "Both"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4400	49e6273aa4018fdc50c23134ed43899f_JaffaCakes118.exe
4400	49e6273aa4018fdc50c23134ed43899f_JaffaCakes118.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe
1420	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4400	49e6273aa4018fdc50c23134ed43899f_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4400	49e6273aa4018fdc50c23134ed43899f_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4400 wrote to memory of 612	4400	49e6273aa4018fdc50c23134ed43899f_JaffaCakes118.exe	5
PID 4400 wrote to memory of 1420	4400	49e6273aa4018fdc50c23134ed43899f_JaffaCakes118.exe	88
PID 4400 wrote to memory of 1420	4400	49e6273aa4018fdc50c23134ed43899f_JaffaCakes118.exe	88
PID 4400 wrote to memory of 1420	4400	49e6273aa4018fdc50c23134ed43899f_JaffaCakes118.exe	88
PID 4400 wrote to memory of 3032	4400	49e6273aa4018fdc50c23134ed43899f_JaffaCakes118.exe	89
PID 4400 wrote to memory of 3032	4400	49e6273aa4018fdc50c23134ed43899f_JaffaCakes118.exe	89
PID 4400 wrote to memory of 3032	4400	49e6273aa4018fdc50c23134ed43899f_JaffaCakes118.exe	89

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:612

C:\Users\Admin\AppData\Local\Temp\49e6273aa4018fdc50c23134ed43899f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\49e6273aa4018fdc50c23134ed43899f_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:4400
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Windows\system32\fccywtuR.dll,a
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  PID:1420
- 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\49e6273aa4018fdc50c23134ed43899f_JaffaCakes118.exe"
  2⤵
  PID:3032

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\rqRLcBqN.dll

Filesize
35KB

MD5
d49deef229a50dddcc0fb8d859ae1915

SHA1
fbba70be0761d85e362885d871dddf77ba06f5b4

SHA256
2c79e61e26f5fb2181c9178d7a743f9a3cada76c4ccd0649debcbf513114bc3f

SHA512
8c254ad09640466209b0601f0e0344c1656d17417633ba9ab417db1ead3520d6012143316fbf36aeaed3b004245de671b7947a3e868c671f5f026d4063d04c85

Download Submit
memory/1420-29-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/1420-35-0x0000000000920000-0x0000000000921000-memory.dmp

Filesize
4KB

Download
memory/1420-33-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/1420-30-0x0000000000920000-0x0000000000921000-memory.dmp

Filesize
4KB

Download
memory/1420-31-0x000000001000E000-0x0000000010013000-memory.dmp

Filesize
20KB

Download
memory/4400-5-0x0000000000400000-0x0000000000411E94-memory.dmp

Filesize
71KB

Download
memory/4400-11-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/4400-13-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/4400-19-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/4400-12-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/4400-4-0x0000000000407000-0x0000000000411000-memory.dmp

Filesize
40KB

Download
memory/4400-0-0x0000000000400000-0x0000000000411E94-memory.dmp

Filesize
71KB

Download
memory/4400-3-0x00000000005C0000-0x00000000005CD000-memory.dmp

Filesize
52KB

Download
memory/4400-2-0x0000000000400000-0x0000000000411E94-memory.dmp

Filesize
71KB

Download
memory/4400-1-0x0000000000400000-0x0000000000411E94-memory.dmp

Filesize
71KB

Download