8c3bc907b83f4934fa6454be1326d0beff37280b505f5ce86fde3fec3b1d409f

Analysis

max time kernel
137s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
01-07-2024 12:27

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General

Target

1b4cd56e54d3f9030a153590fb3fa9e5_JaffaCakes118.dll
Size

152KB
MD5

1b4cd56e54d3f9030a153590fb3fa9e5
SHA1

47aa904320fd28fcd20a541d29fcaf3e47643f0a
SHA256

8c3bc907b83f4934fa6454be1326d0beff37280b505f5ce86fde3fec3b1d409f
SHA512

314539e102895170d8a6cf62d47fb8b0afc0eb0bb53ff05438d6579eb0596ab49dd4907513101f115075cf55c9a225891e2e043151892aebc94d3ce8f50d650e
SSDEEP

3072:cyasTYCiekX26Trr7jahzAAeQW2QK6FlwnaBLWPakxlEiGhU030:cosekX3rfahzp5fQVlwmeqhb0

Score

10^/10

evasion upx

Malware Config

Signatures

Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "0"	rundll32.exe

Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	rundll32.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/956-0-0x0000000010000000-0x000000001001B000-memory.dmp	upx
behavioral2/memory/956-10-0x0000000010000000-0x000000001001B000-memory.dmp	upx

Modifies Internet Explorer settings 1 TTPs 4 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser\ITBar7Layout = 13000000000000000000000020000000100000000000000001000000010700005e01000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Software\Microsoft\Internet Explorer\Toolbar	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\Locked = "1"	explorer.exe

Modifies registry class 32 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = 00000000ffffffff	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 = 5000310000000000a8588e5b100041646d696e003c0009000400efbea858bc53e158c7632e00000076e10100000001000000000000000000000000000000978aa500410064006d0069006e00000014000000	explorer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	explorer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\MRUListEx = 00000000ffffffff	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\NodeSlot = "1"	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\MRUListEx = ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000_Classes\Local Settings	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 19002f433a5c000000000000000000000000000000000000000000	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 = 7800310000000000a858bc531100557365727300640009000400efbe874f7748e158c7632e000000c70500000000010000000000000000003a0000000000070de60055007300650072007300000040007300680065006c006c00330032002e0064006c006c002c002d0032003100380031003300000014000000	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\SniffedFolderType = "Generic"	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f50e04fd020ea3a6910a2d808002b30309d0000	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\MRUListEx = 00000000ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\WorkFolders	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0 = 5600310000000000a858bc5312004170704461746100400009000400efbea858bc53a85818542e00000081e10100000001000000000000000000000000000000fa20da004100700070004400610074006100000016000000	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1	explorer.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
4500	explorer.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
956	rundll32.exe
956	rundll32.exe
956	rundll32.exe
956	rundll32.exe
956	rundll32.exe
956	rundll32.exe

Suspicious use of AdjustPrivilegeToken 15 IoCs

description	pid	Process
Token: SeDebugPrivilege	956	rundll32.exe
Token: SeShutdownPrivilege	3556	Explorer.EXE
Token: SeCreatePagefilePrivilege	3556	Explorer.EXE
Token: SeShutdownPrivilege	3556	Explorer.EXE
Token: SeCreatePagefilePrivilege	3556	Explorer.EXE
Token: SeShutdownPrivilege	3556	Explorer.EXE
Token: SeCreatePagefilePrivilege	3556	Explorer.EXE
Token: SeShutdownPrivilege	3556	Explorer.EXE
Token: SeCreatePagefilePrivilege	3556	Explorer.EXE
Token: SeShutdownPrivilege	3556	Explorer.EXE
Token: SeCreatePagefilePrivilege	3556	Explorer.EXE
Token: SeShutdownPrivilege	3556	Explorer.EXE
Token: SeCreatePagefilePrivilege	3556	Explorer.EXE
Token: SeShutdownPrivilege	3556	Explorer.EXE
Token: SeCreatePagefilePrivilege	3556	Explorer.EXE

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
3556	Explorer.EXE
3556	Explorer.EXE
3556	Explorer.EXE
3556	Explorer.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4500	explorer.exe
4500	explorer.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3556	Explorer.EXE

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3896 wrote to memory of 956	3896	rundll32.exe	80
PID 3896 wrote to memory of 956	3896	rundll32.exe	80
PID 3896 wrote to memory of 956	3896	rundll32.exe	80
PID 956 wrote to memory of 3556	956	rundll32.exe	56
PID 956 wrote to memory of 3640	956	rundll32.exe	81
PID 956 wrote to memory of 3640	956	rundll32.exe	81
PID 956 wrote to memory of 3640	956	rundll32.exe	81

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
PID:3556
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\1b4cd56e54d3f9030a153590fb3fa9e5_JaffaCakes118.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3896
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\1b4cd56e54d3f9030a153590fb3fa9e5_JaffaCakes118.dll,#1
    3⤵
    - Modifies visibility of file extensions in Explorer
    - Modifies visiblity of hidden/system files in Explorer
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:956
  - - C:\Windows\SysWOW64\explorer.exe
      explorer C:\Users\Admin\AppData
      4⤵
      PID:3640

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:4500

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:1316

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/956-0-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/956-2-0x0000000000DB0000-0x0000000000DD1000-memory.dmp

Filesize
132KB

Download
memory/956-4-0x0000000000DB0000-0x0000000000DD1000-memory.dmp

Filesize
132KB

Download
memory/956-7-0x0000000077B42000-0x0000000077B43000-memory.dmp

Filesize
4KB

Download
memory/956-6-0x0000000000DB0000-0x0000000000DD1000-memory.dmp

Filesize
132KB

Download
memory/956-8-0x000000007F930000-0x000000007F931000-memory.dmp

Filesize
4KB

Download
memory/956-11-0x0000000000DB0000-0x0000000000DD1000-memory.dmp

Filesize
132KB

Download
memory/956-10-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download