3f821fe7e872b7ee3823468408e6c8a7df6c51cae0b346c0cf64d55e0726d45b

Analysis

max time kernel
150s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03-10-2024 20:57

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General

Target

107c093b6d8a6e84ba775aa397bfac80_JaffaCakes118.exe
Size

789KB
MD5

107c093b6d8a6e84ba775aa397bfac80
SHA1

5405c4bea6e9831076cc0d7eed5dc3ebfae76468
SHA256

3f821fe7e872b7ee3823468408e6c8a7df6c51cae0b346c0cf64d55e0726d45b
SHA512

59444076109daa1134fa89a49bafa269b9c6637696268603ca2e929fedd3353d92f16e6b432b7b1afb5731aa40986f45a3965e313b2ff722a70806eb5236f935
SSDEEP

12288:rbpHYUKy5U1bo9t8DMRSW9vbciUiLuAvOxMt11i27Qitjz:r5sJo6YrFUiyAak11Ltjz

Score

7^/10

discovery persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1984	svchest000.exe

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\\107c093b6d8a6e84ba775aa397bfac80_JaffaCakes118.exe"	107c093b6d8a6e84ba775aa397bfac80_JaffaCakes118.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2136	107c093b6d8a6e84ba775aa397bfac80_JaffaCakes118.exe
1984	svchest000.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2136-0-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/memory/2136-1-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/files/0x0008000000016890-7.dat	upx
behavioral1/memory/1984-10-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/memory/1984-13-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/memory/2136-14-0x0000000000400000-0x0000000000597000-memory.dmp	upx

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	\??\c:\Windows\BJ.exe	107c093b6d8a6e84ba775aa397bfac80_JaffaCakes118.exe
File opened for modification	\??\c:\Windows\BJ.exe	107c093b6d8a6e84ba775aa397bfac80_JaffaCakes118.exe
File created	\??\c:\Windows\svchest000.exe	107c093b6d8a6e84ba775aa397bfac80_JaffaCakes118.exe
File opened for modification	\??\c:\Windows\svchest000.exe	107c093b6d8a6e84ba775aa397bfac80_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	107c093b6d8a6e84ba775aa397bfac80_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchest000.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2136 wrote to memory of 1984	2136	107c093b6d8a6e84ba775aa397bfac80_JaffaCakes118.exe	28
PID 2136 wrote to memory of 1984	2136	107c093b6d8a6e84ba775aa397bfac80_JaffaCakes118.exe	28
PID 2136 wrote to memory of 1984	2136	107c093b6d8a6e84ba775aa397bfac80_JaffaCakes118.exe	28
PID 2136 wrote to memory of 1984	2136	107c093b6d8a6e84ba775aa397bfac80_JaffaCakes118.exe	28

C:\Users\Admin\AppData\Local\Temp\107c093b6d8a6e84ba775aa397bfac80_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\107c093b6d8a6e84ba775aa397bfac80_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:2136
- \??\c:\Windows\svchest000.exe
  c:\Windows\svchest000.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  PID:1984

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\svchest000.exe

Filesize
789KB

MD5
107c093b6d8a6e84ba775aa397bfac80

SHA1
5405c4bea6e9831076cc0d7eed5dc3ebfae76468

SHA256
3f821fe7e872b7ee3823468408e6c8a7df6c51cae0b346c0cf64d55e0726d45b

SHA512
59444076109daa1134fa89a49bafa269b9c6637696268603ca2e929fedd3353d92f16e6b432b7b1afb5731aa40986f45a3965e313b2ff722a70806eb5236f935

Download Submit
memory/1984-10-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/1984-13-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/2136-0-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/2136-1-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/2136-14-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/2136-15-0x00000000027B0000-0x0000000002947000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads