782493c1eec3bf3ef0f740d74f71bc17d188818469c96035283f1b25b1f66b7a

Analysis

max time kernel
148s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
21/04/2024, 14:55

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General

Target
ff8964c8f5d252262d791d51888448c0_JaffaCakes118.exe
Size 14KB
Sample240421-san3jsdf77
SHA256 782493c1eec3bf3ef0f740d74f71bc17d188818469c96035283f1b25b1f66b7a
MD5 ff8964c8f5d252262d791d51888448c0
SHA1 9c0fb272ab6e65ab7655dfac8b9ee7d5d4fdc596
SHA512 a326141a448159d44f2855fec49f7bb29c90915c66c15da05cad6ac02ba9def8a7a11d96ddaf7f819ee912366958e8df10f7c67e7ebb8b9657c14dc9defabd66
SSDEEP 384:cdGT27FyStC7nXxqYK/cyUlv3b0OQYYqHpzN9r:HC/yXYj/cDv49mL
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

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\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\system32\\drivers\\services.exe"	ff8964c8f5d252262d791d51888448c0_JaffaCakes118.exe

Drops file in Drivers directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\drivers\services.exe	ff8964c8f5d252262d791d51888448c0_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\drivers\services.exe	ff8964c8f5d252262d791d51888448c0_JaffaCakes118.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Schedule\ImagePath = "C:\\Windows\\system32\\drivers\\services.exe"	ff8964c8f5d252262d791d51888448c0_JaffaCakes118.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\userinit.exe	ff8964c8f5d252262d791d51888448c0_JaffaCakes118.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\userinit.exe	ff8964c8f5d252262d791d51888448c0_JaffaCakes118.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3104-0-0x0000000000400000-0x000000000041B000-memory.dmp	upx
behavioral2/files/0x0008000000023249-5.dat	upx
behavioral2/memory/3104-7-0x0000000000400000-0x000000000041B000-memory.dmp	upx

Adds Run key to start application 2 TTPs 4 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\winlogon = "C:\\Users\\Admin\\svchost.exe"	ff8964c8f5d252262d791d51888448c0_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\[system] = "C:\\Windows\\system32\\drivers\\services.exe"	ff8964c8f5d252262d791d51888448c0_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winlogon = "C:\\Users\\Admin\\svchost.exe"	ff8964c8f5d252262d791d51888448c0_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\[system] = "C:\\Windows\\system32\\drivers\\services.exe"	ff8964c8f5d252262d791d51888448c0_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\ff8964c8f5d252262d791d51888448c0_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ff8964c8f5d252262d791d51888448c0_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in Drivers directory
- Sets service image path in registry
- Drops startup file
- Adds Run key to start application
PID:3104

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 --no-appcompat-clear --mojo-platform-channel-handle=3896 --field-trial-handle=2304,i,6987730730348465820,3913273227385401271,262144 --variations-seed-version /prefetch:8
1⤵
PID:3392

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

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

userinit.exe

Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\userinit.exe
Size 14KB
SHA256 782493c1eec3bf3ef0f740d74f71bc17d188818469c96035283f1b25b1f66b7a
MD5 ff8964c8f5d252262d791d51888448c0
SHA1 9c0fb272ab6e65ab7655dfac8b9ee7d5d4fdc596
SHA512 a326141a448159d44f2855fec49f7bb29c90915c66c15da05cad6ac02ba9def8a7a11d96ddaf7f819ee912366958e8df10f7c67e7ebb8b9657c14dc9defabd66
SSDEEP 384:cdGT27FyStC7nXxqYK/cyUlv3b0OQYYqHpzN9r:HC/yXYj/cDv49mL
MD5 SHA1 SHA512 SSDEEP

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memory/3104-0-0x0000000000400000-0x000000000041B000-memory.dmp

Download

memory/3104-7-0x0000000000400000-0x000000000041B000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads