9f3527471f241bbaf25c09b0aaaf6bbbe42a768e3d6dc2611ad99b4c64775705

Analysis

max time kernel
122s
max time network
122s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
09/07/2024, 11:46

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General

Target

2024-07-09_8b4a17138f7eb1975175d80da23c0a64_bkransomware.exe
Size

71KB
MD5

8b4a17138f7eb1975175d80da23c0a64
SHA1

bc6716d1776c32dbd61fe8c00e655b29840fe2d8
SHA256

9f3527471f241bbaf25c09b0aaaf6bbbe42a768e3d6dc2611ad99b4c64775705
SHA512

fa10a51351c93f3b451958725e5fa14b87bf9f7691cf958b3b1eae24fd16f5db2f5b67a116ef0aad4ca95f12d9f29d191e24bfb15c61b0cf65d0b12a55c84f05
SSDEEP

1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazTn:ZhpAyazIlyazTn

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2792	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"	2024-07-09_8b4a17138f7eb1975175d80da23c0a64_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	2024-07-09_8b4a17138f7eb1975175d80da23c0a64_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2788	2024-07-09_8b4a17138f7eb1975175d80da23c0a64_bkransomware.exe
Token: SeDebugPrivilege	2792	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2788 wrote to memory of 2792	2788	2024-07-09_8b4a17138f7eb1975175d80da23c0a64_bkransomware.exe	31
PID 2788 wrote to memory of 2792	2788	2024-07-09_8b4a17138f7eb1975175d80da23c0a64_bkransomware.exe	31
PID 2788 wrote to memory of 2792	2788	2024-07-09_8b4a17138f7eb1975175d80da23c0a64_bkransomware.exe	31
PID 2788 wrote to memory of 2792	2788	2024-07-09_8b4a17138f7eb1975175d80da23c0a64_bkransomware.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-07-09_8b4a17138f7eb1975175d80da23c0a64_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-09_8b4a17138f7eb1975175d80da23c0a64_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2788
- 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:2792

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\AUaSUznc0BBTylo.exe

Filesize
71KB

MD5
2fa9fc10887536be82370d1108becf29

SHA1
c7d143e27c011647d91320ff37593b29f8a76e29

SHA256
352c105f73b6294942bfa4f0230946a68c6265872ec813fe62f632281dc178f7

SHA512
a747cffcf6bcced080ddb64a900a1cdce1b71e3f49b2cde609899c525600791bc66c3040d9caf8b99cd91afc0ec39ff5b1028bbcae21845ac53f70f1c3be1667

Download Submit
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