31cd90d982c494e1f05ac4383b169718b60090b61a669582383817c28963ec08

Analysis

max time kernel
118s
max time network
123s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
27-06-2024 20:24

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General

Target

2024-06-27_5c360a29cb295230d637d85f03b0674d_bkransomware.exe
Size

71KB
MD5

5c360a29cb295230d637d85f03b0674d
SHA1

50d518b2f0bd64a7b555b36041e9e9774fa8cb04
SHA256

31cd90d982c494e1f05ac4383b169718b60090b61a669582383817c28963ec08
SHA512

a963eca8f1194beef7219f146c8a4d65d64ea4b989ea09ed8320ff15e8b847ef8c2d88543a7f6597b94bfc75714231fd8c389671a3df8f8b9e914d7c6990f767
SSDEEP

1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazTwH:ZhpAyazIlyazTM

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2148	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"	2024-06-27_5c360a29cb295230d637d85f03b0674d_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	2024-06-27_5c360a29cb295230d637d85f03b0674d_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2996	2024-06-27_5c360a29cb295230d637d85f03b0674d_bkransomware.exe
Token: SeDebugPrivilege	2148	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2996 wrote to memory of 2148	2996	2024-06-27_5c360a29cb295230d637d85f03b0674d_bkransomware.exe	28
PID 2996 wrote to memory of 2148	2996	2024-06-27_5c360a29cb295230d637d85f03b0674d_bkransomware.exe	28
PID 2996 wrote to memory of 2148	2996	2024-06-27_5c360a29cb295230d637d85f03b0674d_bkransomware.exe	28
PID 2996 wrote to memory of 2148	2996	2024-06-27_5c360a29cb295230d637d85f03b0674d_bkransomware.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-27_5c360a29cb295230d637d85f03b0674d_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-27_5c360a29cb295230d637d85f03b0674d_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2996
- 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:2148

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\HNVhMvNwfk9KfhJ.exe

Filesize
71KB

MD5
d3071e6b39cff5c1e439c77530a270de

SHA1
7cb867b5d83f2e964df32e212961a2c4e9abee51

SHA256
e6f9531284c75c0d449220cb46f1379ab31386be729022f0cd8e3dfc41871156

SHA512
01b920e36a862bde4670983c7902b4754de3eb19f0920a06dfdc8c58dba12d9f9651cce371585692b7435f1241b262e64600ca3e649d0b56e79d02b1f3d09069

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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