2cc7cd8a4d11f5533d92c92fbd43e4ca03c44f209328e08fcd66312369c9f091

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
05-06-2024 07:37

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General

Target

2024-06-05_b1c82e7b785ca222c0e03d19bca12f6b_bkransomware.exe
Size

76KB
MD5

b1c82e7b785ca222c0e03d19bca12f6b
SHA1

ac79419e5fb8127db54fcf03c8cb2d6ee9914dd1
SHA256

2cc7cd8a4d11f5533d92c92fbd43e4ca03c44f209328e08fcd66312369c9f091
SHA512

91ed6e89a76e63a55922a6f4aa67a54f8f49334b97cb759fe4b83f9abb6a0eda6dca336b70667cf9e91277c9d90c5e67402864b1c60a2003d8aaf04c716a000d
SSDEEP

1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazTAcRwy2:ZhpAyazIlyazTbRwy2

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2840	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"	2024-06-05_b1c82e7b785ca222c0e03d19bca12f6b_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	2024-06-05_b1c82e7b785ca222c0e03d19bca12f6b_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2460	2024-06-05_b1c82e7b785ca222c0e03d19bca12f6b_bkransomware.exe
Token: SeDebugPrivilege	2840	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2460 wrote to memory of 2840	2460	2024-06-05_b1c82e7b785ca222c0e03d19bca12f6b_bkransomware.exe	28
PID 2460 wrote to memory of 2840	2460	2024-06-05_b1c82e7b785ca222c0e03d19bca12f6b_bkransomware.exe	28
PID 2460 wrote to memory of 2840	2460	2024-06-05_b1c82e7b785ca222c0e03d19bca12f6b_bkransomware.exe	28
PID 2460 wrote to memory of 2840	2460	2024-06-05_b1c82e7b785ca222c0e03d19bca12f6b_bkransomware.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-05_b1c82e7b785ca222c0e03d19bca12f6b_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-05_b1c82e7b785ca222c0e03d19bca12f6b_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2460
- 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:2840

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\nd577k3cOXpycvA.exe

Filesize
76KB

MD5
02c592501a4c2387bd690ab4434a6259

SHA1
447aba77a96e90990f1549b8d6d6d49f9f90b110

SHA256
d5ee408032c9666e7a3a4ccc5751aecb5771e54d4d07c219b6fcab92f97ccefb

SHA512
5df52db5db023d7e617802062900e0951fe3659a8043225122e6f4c24f1a16a01313325d663e7ae266e1409301ab315c1d66ac22cfa526f2b23e6c17ed10e667

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C:\Windows\CTS.exe

Filesize
71KB

MD5
66df4ffab62e674af2e75b163563fc0b

SHA1
dec8a197312e41eeb3cfef01cb2a443f0205cd6e

SHA256
075a6eecd8da1795532318f9cf880efe42461f9464d63f74deb271d33110f163

SHA512
1588dd78e6e8972013c40cdb6acfb84c8df7b081197233ce621904b645356c805d0424bb93dd46c55834dc47d9ff39ee1323cf8e670841b3fff24ab98ba87f25

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads