6587a6f0e93193af32e5d0466129d785b23d2642870e1ed5fb00a7cc58b9996a

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
15-04-2024 18:12

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General

Target

f1acb1c13eae0c6d79d61586bdb220f6_JaffaCakes118.exe
Size

187KB
MD5

f1acb1c13eae0c6d79d61586bdb220f6
SHA1

35016709a849233cb5e4f8834708a859463a281d
SHA256

6587a6f0e93193af32e5d0466129d785b23d2642870e1ed5fb00a7cc58b9996a
SHA512

f098155a529ba468a848d7fd22081ab570b9462ae46f8aff39548f2e9c427c3931f0b6cb1693924f639af0a3a233f86db66c643816672776681b5b373fbe9f4a
SSDEEP

3072:zrFacvMOnBC4ODDSe5GUs4KOTQJ/FtMVKVGxbfT/j/MVG:/zxBCxD6TlOTiUo6DXB

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\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f1acb1c13eae0c6d79d61586bdb220f6_JaffaCakes118.exe"	f1acb1c13eae0c6d79d61586bdb220f6_JaffaCakes118.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5072-0-0x0000000000400000-0x000000000043C000-memory.dmp	upx
behavioral2/memory/5072-2-0x0000000000400000-0x000000000043C000-memory.dmp	upx
behavioral2/memory/5072-3-0x0000000000400000-0x000000000043C000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Shell = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f1acb1c13eae0c6d79d61586bdb220f6_JaffaCakes118.exe"	f1acb1c13eae0c6d79d61586bdb220f6_JaffaCakes118.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
4324	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4324	taskkill.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5072 wrote to memory of 4324	5072	f1acb1c13eae0c6d79d61586bdb220f6_JaffaCakes118.exe	84
PID 5072 wrote to memory of 4324	5072	f1acb1c13eae0c6d79d61586bdb220f6_JaffaCakes118.exe	84
PID 5072 wrote to memory of 4324	5072	f1acb1c13eae0c6d79d61586bdb220f6_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\f1acb1c13eae0c6d79d61586bdb220f6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f1acb1c13eae0c6d79d61586bdb220f6_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:5072
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /F /IM explorer.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:4324

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

memory/5072-0-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/5072-1-0x0000000000450000-0x0000000000451000-memory.dmp

Filesize
4KB

Download
memory/5072-2-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/5072-3-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads