1087577c201b1a5c54105a7ec45fe526c72ff63958c63a1795e5346a7eff2e33

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
26/05/2024, 21:22

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General

Target

2024-05-26_0df64690ba45b57d3a39f0a4c9132477_bkransomware.exe
Size

71KB
MD5

0df64690ba45b57d3a39f0a4c9132477
SHA1

a67efc968af5e4c98d978e6e4881bc10e4f7a62e
SHA256

1087577c201b1a5c54105a7ec45fe526c72ff63958c63a1795e5346a7eff2e33
SHA512

4c7e73bb15dc099c0801666a1154a7a0f621fb330328b898d15893e6a6f7d3807ffdca1dc79770002b2b5ad5c461d9d8e4e35b995e0f3b09c23667a32d5ac330
SSDEEP

1536:Fc8N7UsWjcd9w+AyabjDbxE+MwmvlzuazTy:ZRpAyazIliazTy

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2292	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"	2024-05-26_0df64690ba45b57d3a39f0a4c9132477_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	2024-05-26_0df64690ba45b57d3a39f0a4c9132477_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3012	2024-05-26_0df64690ba45b57d3a39f0a4c9132477_bkransomware.exe
Token: SeDebugPrivilege	2292	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3012 wrote to memory of 2292	3012	2024-05-26_0df64690ba45b57d3a39f0a4c9132477_bkransomware.exe	28
PID 3012 wrote to memory of 2292	3012	2024-05-26_0df64690ba45b57d3a39f0a4c9132477_bkransomware.exe	28
PID 3012 wrote to memory of 2292	3012	2024-05-26_0df64690ba45b57d3a39f0a4c9132477_bkransomware.exe	28
PID 3012 wrote to memory of 2292	3012	2024-05-26_0df64690ba45b57d3a39f0a4c9132477_bkransomware.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-26_0df64690ba45b57d3a39f0a4c9132477_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-26_0df64690ba45b57d3a39f0a4c9132477_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3012
- 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:2292

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\qqbvlCTqeleD1lN.exe

Filesize
71KB

MD5
775961b0bba3f439a986338af6d8ece3

SHA1
e340c7822771bfbfee53419e2e4b084514e3f468

SHA256
a736c01d090f9451ceb6db4c592d38abf72100fb1dbb1e7a381bc3419df0c8f5

SHA512
457dcf50ab0c3d738b88d0ea1fc62c8e766dc45f7bb6f78df10c9bfcadb1b2d56222ed378a28de7eac28d490236b2e35c6e1bd7f8844916a99754d3744fda4cc

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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