1f599bf939d69da269e0f02afd801a7cfd15313780eca4bbd2050d55a0cfbf8b

Analysis

max time kernel
122s
max time network
122s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
02/05/2024, 17:31

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General

Target

2024-05-02_d385ffbed371e217a5f3c9884040562a_bkransomware.exe
Size

71KB
MD5

d385ffbed371e217a5f3c9884040562a
SHA1

92008cd6ff55a5ebe9cd862b18606e53031aa077
SHA256

1f599bf939d69da269e0f02afd801a7cfd15313780eca4bbd2050d55a0cfbf8b
SHA512

3e37b78647790de457930c624ffc8cdb938aac76cf92e4a468731921770c9a28e002f6d56620dc2f1bd81cfedc5f2bf94fd027c512aba36f5f7bc6104411826e
SSDEEP

1536:Fc8N7UsWjcd9w+AyabjDbxE+MwmvlzuazTT:ZRpAyazIliazTT

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2744	CTS.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Adds Run key to start application 2 TTPs 2 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\CTS = "C:\\Windows\\CTS.exe"	2024-05-02_d385ffbed371e217a5f3c9884040562a_bkransomware.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	CTS.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	2024-05-02_d385ffbed371e217a5f3c9884040562a_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1508	2024-05-02_d385ffbed371e217a5f3c9884040562a_bkransomware.exe
Token: SeDebugPrivilege	2744	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1508 wrote to memory of 2744	1508	2024-05-02_d385ffbed371e217a5f3c9884040562a_bkransomware.exe	28
PID 1508 wrote to memory of 2744	1508	2024-05-02_d385ffbed371e217a5f3c9884040562a_bkransomware.exe	28
PID 1508 wrote to memory of 2744	1508	2024-05-02_d385ffbed371e217a5f3c9884040562a_bkransomware.exe	28
PID 1508 wrote to memory of 2744	1508	2024-05-02_d385ffbed371e217a5f3c9884040562a_bkransomware.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-02_d385ffbed371e217a5f3c9884040562a_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-02_d385ffbed371e217a5f3c9884040562a_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1508
- C:\Windows\CTS.exe
  "C:\Windows\CTS.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  PID:2744

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

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\vTzDAb413rO4LFt.exe

Filesize
71KB

MD5
5c246844adf0d7da800a749368b74da5

SHA1
d3d89f2b07377e2f0ad42f0f27d03621b7ccbe88

SHA256
693db0d5b559dff4d24673bb79f61c5b869cf9a92c17b60f924cffbf563021b2

SHA512
c33008fe1facea456b77468ddfc3958eb5b88c7498ed503a4efcee26e592c2e56ab1dd568a504a21773b4d5626cb003851819d270db5aee9e5c359ae307d959b

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C:\Windows\CTS.exe

Filesize
71KB

MD5
f9d4ab0a726adc9b5e4b7d7b724912f1

SHA1
3d42ca2098475924f70ee4a831c4f003b4682328

SHA256
b43be87e8586ca5e995979883468f3b3d9dc5212fbfd0b5f3341a5b7c56e0fbc

SHA512
22a5f0e4b2716244e978ee50771823926f86baf0382ece48fd049f039cf77b5eb0691d83c61148903cff081fdbea969f47b8ed521647717f42bbed5c64552432

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads