e0aa9d82229174edc5ad099acbaf042a025e16d7cbab449552d708ba3760e46c

Analysis

max time kernel
151s
max time network
158s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
13/08/2024, 18:19

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General

Target

94375a3366e3dc32a2226beffdb558a3_JaffaCakes118.exe
Size

215KB
MD5

94375a3366e3dc32a2226beffdb558a3
SHA1

4e3957ad50446d51e70485afe377b99c902d188d
SHA256

e0aa9d82229174edc5ad099acbaf042a025e16d7cbab449552d708ba3760e46c
SHA512

b69e49c92a986fb68f8687cbe98da89985ccb7ef77b4b2e0db057175898d6448dd6df19b7ce1030d7c5ea6174e8253d6ed35f356afa4d9f3d6713c171d326e29
SSDEEP

6144:1jWieLa1q2yhh1ySm1gGORBd9TcN7AW7Ojt5dOoSR:16ieLa1hyhh41gxj9OA1J5dOoSR

Score

10^/10

discovery persistence upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explоrer.exe"	94375a3366e3dc32a2226beffdb558a3_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
2776	explоrer.exe

Executes dropped EXE 1 IoCs

pid	Process
2776	explоrer.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1732-0-0x0000000000400000-0x0000000000464000-memory.dmp	upx
behavioral1/files/0x0026000000018f84-13.dat	upx
behavioral1/memory/2776-14-0x0000000000400000-0x0000000000464000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\explоrer.exe	94375a3366e3dc32a2226beffdb558a3_JaffaCakes118.exe
File opened for modification	C:\Windows\explоrer.exe	94375a3366e3dc32a2226beffdb558a3_JaffaCakes118.exe

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	94375a3366e3dc32a2226beffdb558a3_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explоrer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iexplore.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ctfmon.exe

Modifies Internet Explorer settings 1 TTPs 3 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe
2052	iexplore.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2776	explоrer.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	2924	vssvc.exe
Token: SeRestorePrivilege	2924	vssvc.exe
Token: SeAuditPrivilege	2924	vssvc.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3012	ctfmon.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2052	iexplore.exe
2052	iexplore.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1732 wrote to memory of 2776	1732	94375a3366e3dc32a2226beffdb558a3_JaffaCakes118.exe	29
PID 1732 wrote to memory of 2776	1732	94375a3366e3dc32a2226beffdb558a3_JaffaCakes118.exe	29
PID 1732 wrote to memory of 2776	1732	94375a3366e3dc32a2226beffdb558a3_JaffaCakes118.exe	29
PID 1732 wrote to memory of 2776	1732	94375a3366e3dc32a2226beffdb558a3_JaffaCakes118.exe	29
PID 2776 wrote to memory of 2052	2776	explоrer.exe	30
PID 2776 wrote to memory of 2052	2776	explоrer.exe	30
PID 2776 wrote to memory of 2052	2776	explоrer.exe	30
PID 2776 wrote to memory of 2052	2776	explоrer.exe	30
PID 2052 wrote to memory of 3012	2052	iexplore.exe	31
PID 2052 wrote to memory of 3012	2052	iexplore.exe	31
PID 2052 wrote to memory of 3012	2052	iexplore.exe	31
PID 2052 wrote to memory of 3012	2052	iexplore.exe	31

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\94375a3366e3dc32a2226beffdb558a3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\94375a3366e3dc32a2226beffdb558a3_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1732
- C:\Windows\explоrer.exe
  "C:\Windows\explоrer.exe" C:\Users\Admin\AppData\Local\Temp\94375a3366e3dc32a2226beffdb558a3_JaffaCakes118.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2776
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Modifies Internet Explorer settings
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2052
  - - C:\Windows\SysWOW64\ctfmon.exe
      ctfmon.exe
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of FindShellTrayWindow
      PID:3012

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2924

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

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\Microsoft\Windows\Temporary Internet Files\Content.IE5\NFAY0EOS\ib2[1].htm

Filesize
162B

MD5
4f8e702cc244ec5d4de32740c0ecbd97

SHA1
3adb1f02d5b6054de0046e367c1d687b6cdf7aff

SHA256
9e17cb15dd75bbbd5dbb984eda674863c3b10ab72613cf8a39a00c3e11a8492a

SHA512
21047fea5269fee75a2a187aa09316519e35068cb2f2f76cfaf371e5224445e9d5c98497bd76fb9608d2b73e9dac1a3f5bfadfdc4623c479d53ecf93d81d3c9f

Download Submit
C:\Windows\explоrer.exe

Filesize
215KB

MD5
94375a3366e3dc32a2226beffdb558a3

SHA1
4e3957ad50446d51e70485afe377b99c902d188d

SHA256
e0aa9d82229174edc5ad099acbaf042a025e16d7cbab449552d708ba3760e46c

SHA512
b69e49c92a986fb68f8687cbe98da89985ccb7ef77b4b2e0db057175898d6448dd6df19b7ce1030d7c5ea6174e8253d6ed35f356afa4d9f3d6713c171d326e29

Download Submit
memory/1732-0-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/1732-1-0x00000000001B0000-0x00000000001C5000-memory.dmp

Filesize
84KB

Download
memory/1732-2-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/1732-3-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/1732-12-0x00000000004A0000-0x0000000000504000-memory.dmp

Filesize
400KB

Download
memory/2776-14-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2776-22-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download