ef631389eb569c539e1ac61d88088d7ea3a633a603f9183db78ff70991aa775b

Analysis

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

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
11-08-2024 06:00

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General

Target

89439bf9f380261ac54f57787addef28_JaffaCakes118.exe
Size

643KB
MD5

89439bf9f380261ac54f57787addef28
SHA1

1b2622adeedc7fa438cc84c43d895cb930dbc34a
SHA256

ef631389eb569c539e1ac61d88088d7ea3a633a603f9183db78ff70991aa775b
SHA512

5ba08c2dfa1aa5a86a3919d8baaed4d28fa3ebbb9924339a038c1cca4e50339d2532a9004fb79ebaaf8be8642b847032f895b2fc8fc7a6b9118d158f88ee11b3
SSDEEP

12288:rbpHYUKy5U1bo9t8DMRSW9vbciUiLuAvOxMt11i27QitjeqEC:r5sJo6YrFUiyAak11LtjeqEC

Score

7^/10

discovery persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2272	svchest425075242507520.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/720-0-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral2/memory/720-1-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral2/files/0x000a000000023494-8.dat	upx
behavioral2/memory/2272-12-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral2/memory/720-13-0x0000000000400000-0x0000000000597000-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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Kris = "C:\\Users\\Admin\\AppData\\Local\\Temp\\89439bf9f380261ac54f57787addef28_JaffaCakes118.exe"	89439bf9f380261ac54f57787addef28_JaffaCakes118.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
720	89439bf9f380261ac54f57787addef28_JaffaCakes118.exe
2272	svchest425075242507520.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	\??\c:\Windows\BJ.exe	89439bf9f380261ac54f57787addef28_JaffaCakes118.exe
File opened for modification	\??\c:\Windows\BJ.exe	89439bf9f380261ac54f57787addef28_JaffaCakes118.exe
File created	\??\c:\Windows\svchest425075242507520.exe	89439bf9f380261ac54f57787addef28_JaffaCakes118.exe
File opened for modification	\??\c:\Windows\svchest425075242507520.exe	89439bf9f380261ac54f57787addef28_JaffaCakes118.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	89439bf9f380261ac54f57787addef28_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchest425075242507520.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 720 wrote to memory of 2272	720	89439bf9f380261ac54f57787addef28_JaffaCakes118.exe	84
PID 720 wrote to memory of 2272	720	89439bf9f380261ac54f57787addef28_JaffaCakes118.exe	84
PID 720 wrote to memory of 2272	720	89439bf9f380261ac54f57787addef28_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\89439bf9f380261ac54f57787addef28_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\89439bf9f380261ac54f57787addef28_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:720
- \??\c:\Windows\svchest425075242507520.exe
  c:\Windows\svchest425075242507520.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  PID:2272

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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

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\svchest425075242507520.exe

Filesize
643KB

MD5
89439bf9f380261ac54f57787addef28

SHA1
1b2622adeedc7fa438cc84c43d895cb930dbc34a

SHA256
ef631389eb569c539e1ac61d88088d7ea3a633a603f9183db78ff70991aa775b

SHA512
5ba08c2dfa1aa5a86a3919d8baaed4d28fa3ebbb9924339a038c1cca4e50339d2532a9004fb79ebaaf8be8642b847032f895b2fc8fc7a6b9118d158f88ee11b3

Download Submit
memory/720-0-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/720-1-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/720-13-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/2272-12-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads