132faa0a540eed4da22938aa67d2960125f9c7f7e047b5238e26ef45b630caff

Analysis

max time kernel
150s
max time network
129s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05/09/2024, 21:26

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General

Target

cdfcb8482dea366655ab7a6510e38b95_JaffaCakes118.dll
Size

135KB
MD5

cdfcb8482dea366655ab7a6510e38b95
SHA1

13bed94301f5e02ac400e53cc1e6366ecc20e234
SHA256

132faa0a540eed4da22938aa67d2960125f9c7f7e047b5238e26ef45b630caff
SHA512

dad779162dad95b361a109c182c58edf4afd9f82853d0a4ac7a8e270c0f6335ee2a8b1e2747ed888038f43e484a4d16a792579408a8c3fccbbebea8ebc1c8647
SSDEEP

1536:SNDX58zc+BwWarTdNFiHnhuzGjmplPnmeKk+iUnouy8tz4RiRM:SB5n+eWuMnECjOnmVkdkouttzcm

Score

7^/10

defense_evasion discovery privilege_escalation upx

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
2848	rundll32.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2312-0-0x0000000010000000-0x0000000010023000-memory.dmp	upx
behavioral2/files/0x00060000000226c6-4.dat	upx
behavioral2/memory/2848-6-0x0000000010000000-0x0000000010023000-memory.dmp	upx
behavioral2/memory/2312-7-0x0000000010000000-0x0000000010023000-memory.dmp	upx
behavioral2/memory/2848-8-0x0000000010000000-0x0000000010023000-memory.dmp	upx

Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs

pid	Process
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\lua.wkl	rundll32.exe
File created	C:\Windows\msremotx.dll	rundll32.exe
File opened for modification	C:\Windows\msremotx.dll	rundll32.exe
File opened for modification	C:\Windows\lua.wkl	rundll32.exe

Access Token Manipulation: Create Process with Token 1 TTPs 1 IoCs

defense_evasion privilege_escalation

Create Process with Token

T1134.002

pid	Process
2848	rundll32.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7B3AC3FA-B695-41b6-BAA0-860EB5EB6FD6}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7B3AC3FA-B695-41b6-BAA0-860EB5EB6FD6}\{F69EB73C-700A-42c9-8F9D-E8C4ABC27EF3} = "cdfcb8482dea366655ab7a6510e38b95_JaffaCakes118.dll,1309250235,-496657352,-352895392"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InProcServer32	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	rundll32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe
2848	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2020 wrote to memory of 2312	2020	rundll32.exe	90
PID 2020 wrote to memory of 2312	2020	rundll32.exe	90
PID 2020 wrote to memory of 2312	2020	rundll32.exe	90
PID 2312 wrote to memory of 2848	2312	rundll32.exe	94
PID 2312 wrote to memory of 2848	2312	rundll32.exe	94
PID 2312 wrote to memory of 2848	2312	rundll32.exe	94

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\cdfcb8482dea366655ab7a6510e38b95_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2020
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\cdfcb8482dea366655ab7a6510e38b95_JaffaCakes118.dll,#1
  2⤵
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2312
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32 "C:\Windows\msremotx.dll",_RunAs@16
    3⤵
    - Loads dropped DLL
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - Drops file in Windows directory
    - Access Token Manipulation: Create Process with Token
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:2848

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=1440,i,5469445176230119590,7931734017267321834,262144 --variations-seed-version --mojo-platform-channel-handle=1996 /prefetch:8
1⤵
PID:4716

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Access Token Manipulation

T1134

Create Process with Token

T1134.002

Defense Evasion

Access Token Manipulation

T1134

Create Process with Token

T1134.002

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\msremotx.dll

Filesize
135KB

MD5
cdfcb8482dea366655ab7a6510e38b95

SHA1
13bed94301f5e02ac400e53cc1e6366ecc20e234

SHA256
132faa0a540eed4da22938aa67d2960125f9c7f7e047b5238e26ef45b630caff

SHA512
dad779162dad95b361a109c182c58edf4afd9f82853d0a4ac7a8e270c0f6335ee2a8b1e2747ed888038f43e484a4d16a792579408a8c3fccbbebea8ebc1c8647

Download Submit
memory/2312-0-0x0000000010000000-0x0000000010023000-memory.dmp

Filesize
140KB

Download
memory/2312-7-0x0000000010000000-0x0000000010023000-memory.dmp

Filesize
140KB

Download
memory/2848-6-0x0000000010000000-0x0000000010023000-memory.dmp

Filesize
140KB

Download
memory/2848-8-0x0000000010000000-0x0000000010023000-memory.dmp

Filesize
140KB

Download