611b7d993306abb5ecfefe943384bca6fe253bdebac09843c9e6657b961c242d

Analysis

max time kernel
117s
max time network
122s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
27/06/2024, 15:53

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General

Target

16993b93db36ac692ee2004714ea0155_JaffaCakes118.dll
Size

82KB
MD5

16993b93db36ac692ee2004714ea0155
SHA1

4b5d13bef2bdf85cbeebe2058a5802eadbe2431b
SHA256

611b7d993306abb5ecfefe943384bca6fe253bdebac09843c9e6657b961c242d
SHA512

d607e1176c3b607aa625d47dbf68c119f5434b6cfc1bf295f60ec523ee6f5f1f0654a07a70d3766e8f4b1804c3ba93fe96306450f3f9c3329140ea341c48d2aa
SSDEEP

1536:lHzzyR8paSGENjetVS2YxOw/ZI5j1lpAJhzAUTprARyCTUvBcZdXWlsK:lHzKdHS/c8mj1fAJZmRJTkRsK

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-1-5-21-39690363-730359138-1046745555-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "0"	rundll32.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2780-1-0x0000000010000000-0x000000001001C000-memory.dmp	upx
behavioral1/memory/2780-11-0x0000000010000000-0x000000001001C000-memory.dmp	upx

Enumerates connected drives 3 TTPs 1 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\B:	rundll32.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000\Software\Microsoft\Internet Explorer\Toolbar	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000\Software\Microsoft\Internet Explorer\Toolbar\Locked = "1"	explorer.exe

Modifies registry class 28 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 = 7400310000000000cc5811161100557365727300600008000400efbeee3a851acc5811162a000000e601000000000100000000000000000036000000000055007300650072007300000040007300680065006c006c00330032002e0064006c006c002c002d0032003100380031003300000014000000	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f50e04fd020ea3a6910a2d808002b30309d0000	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\MRUListEx = ffffffff	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\KnownFolderDerivedFolderType = "{57807898-8C4F-4462-BB63-71042380B109}"	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\MRUListEx = 00000000ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0 = 5200310000000000cc581116122041707044617461003c0008000400efbecc581116cc5811162a000000ed0100000000020000000000000000000000000000004100700070004400610074006100000016000000	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 = 4c00310000000000cc58081f100041646d696e00380008000400efbecc581116cc58081f2a00000030000000000004000000000000000000000000000000410064006d0069006e00000014000000	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 19002f433a5c000000000000000000000000000000000000000000	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\MRUListEx = 00000000ffffffff	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\SniffedFolderType = "Generic"	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_Classes\Local Settings	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = 00000000ffffffff	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\NodeSlot = "1"	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0	explorer.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2780	rundll32.exe
2780	rundll32.exe
2780	rundll32.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2780	rundll32.exe
Token: SeShutdownPrivilege	1372	Explorer.EXE
Token: SeShutdownPrivilege	1372	Explorer.EXE

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
1372	Explorer.EXE
1372	Explorer.EXE
1372	Explorer.EXE
1372	Explorer.EXE

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
1372	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2540 wrote to memory of 2780	2540	rundll32.exe	28
PID 2540 wrote to memory of 2780	2540	rundll32.exe	28
PID 2540 wrote to memory of 2780	2540	rundll32.exe	28
PID 2540 wrote to memory of 2780	2540	rundll32.exe	28
PID 2540 wrote to memory of 2780	2540	rundll32.exe	28
PID 2540 wrote to memory of 2780	2540	rundll32.exe	28
PID 2540 wrote to memory of 2780	2540	rundll32.exe	28
PID 2780 wrote to memory of 1372	2780	rundll32.exe	21
PID 2780 wrote to memory of 1532	2780	rundll32.exe	29
PID 2780 wrote to memory of 1532	2780	rundll32.exe	29
PID 2780 wrote to memory of 1532	2780	rundll32.exe	29
PID 2780 wrote to memory of 1532	2780	rundll32.exe	29

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1372
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\16993b93db36ac692ee2004714ea0155_JaffaCakes118.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2540
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\16993b93db36ac692ee2004714ea0155_JaffaCakes118.dll,#1
    3⤵
    - Modifies visibility of file extensions in Explorer
    - Enumerates connected drives
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2780
  - - C:\Windows\SysWOW64\explorer.exe
      explorer C:\Users\Admin\AppData
      4⤵
      PID:1532

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Modifies Internet Explorer settings
- Modifies registry class
PID:3040

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

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1372-10-0x0000000002620000-0x0000000002621000-memory.dmp

Filesize
4KB

Download
memory/2780-1-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/2780-0-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/2780-2-0x0000000000170000-0x0000000000191000-memory.dmp

Filesize
132KB

Download
memory/2780-5-0x0000000000170000-0x0000000000191000-memory.dmp

Filesize
132KB

Download
memory/2780-7-0x0000000000170000-0x0000000000191000-memory.dmp

Filesize
132KB

Download
memory/2780-9-0x000000007EFA0000-0x000000007EFA1000-memory.dmp

Filesize
4KB

Download
memory/2780-8-0x000000007776F000-0x0000000077770000-memory.dmp

Filesize
4KB

Download
memory/2780-11-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/3040-12-0x00000000036C0000-0x00000000036D0000-memory.dmp

Filesize
64KB

Download