1174995b7eca1869929bbc8026d17bb60cfa8310a570bd5611908caca15deead

Analysis

max time kernel
130s
max time network
140s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
14-07-2024 11:49

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General

Target

45af3ee5c1252a150d1652574d6da322_JaffaCakes118.exe
Size

83KB
MD5

45af3ee5c1252a150d1652574d6da322
SHA1

d28c518df33624496514f7ecdc16ffdf7ee19a26
SHA256

1174995b7eca1869929bbc8026d17bb60cfa8310a570bd5611908caca15deead
SHA512

e3554bddd6cccfd695583785356548dad0679efea9ded6a6f6eec481a378c4f9eb93ce50cb77bb0eeb53f8e76a5daed9eb7ba40d60a1de4614bbb62ef5461430
SSDEEP

1536:+ocEVv0azBsFgr4NYLrAA73xJKLMWngDKVeJqlTuo:7cGeyL/nKHngDKVeJqlSo

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies firewall policy service 3 TTPs 1 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Program Files (x86)\Common Files\System\klass.exe = "C:\\Program Files (x86)\\Common Files\\System\\klass.exe:*:Enabled:Windows Update"	klass.exe

Executes dropped EXE 1 IoCs

pid	Process
2100	klass.exe

Loads dropped DLL 2 IoCs

pid	Process
3008	45af3ee5c1252a150d1652574d6da322_JaffaCakes118.exe
3008	45af3ee5c1252a150d1652574d6da322_JaffaCakes118.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\Windows Update = "C:\\Program Files (x86)\\Common Files\\System\\klass.exe"	klass.exe

Drops file in Program Files directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Common Files\System	klass.exe
File created	C:\Program Files (x86)\Common Files\System\klass.exe	klass.exe
File opened for modification	C:\Program Files (x86)\Common Files\System\klass.exe	klass.exe
File opened for modification	C:\Program Files (x86)\Common Files\System	45af3ee5c1252a150d1652574d6da322_JaffaCakes118.exe
File created	C:\Program Files (x86)\Common Files\System\klass.exe	45af3ee5c1252a150d1652574d6da322_JaffaCakes118.exe
File opened for modification	C:\Program Files (x86)\Common Files\System\klass.exe	45af3ee5c1252a150d1652574d6da322_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3008 wrote to memory of 2100	3008	45af3ee5c1252a150d1652574d6da322_JaffaCakes118.exe	30
PID 3008 wrote to memory of 2100	3008	45af3ee5c1252a150d1652574d6da322_JaffaCakes118.exe	30
PID 3008 wrote to memory of 2100	3008	45af3ee5c1252a150d1652574d6da322_JaffaCakes118.exe	30
PID 3008 wrote to memory of 2100	3008	45af3ee5c1252a150d1652574d6da322_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\45af3ee5c1252a150d1652574d6da322_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\45af3ee5c1252a150d1652574d6da322_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:3008
- C:\Program Files (x86)\Common Files\System\klass.exe
  "C:\Program Files (x86)\Common Files\System\klass.exe"
  2⤵
  - Modifies firewall policy service
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Program Files directory
  PID:2100

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

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Program Files (x86)\Common Files\System\klass.exe

Filesize
83KB

MD5
45af3ee5c1252a150d1652574d6da322

SHA1
d28c518df33624496514f7ecdc16ffdf7ee19a26

SHA256
1174995b7eca1869929bbc8026d17bb60cfa8310a570bd5611908caca15deead

SHA512
e3554bddd6cccfd695583785356548dad0679efea9ded6a6f6eec481a378c4f9eb93ce50cb77bb0eeb53f8e76a5daed9eb7ba40d60a1de4614bbb62ef5461430

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads