9124522be7d10d17f16a44f4fd73744cf83a69c5594b2c55a2205cf3b48bd0d1

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
03/05/2024, 07:44

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General

Target

2024-05-03_2556ec8533008b46d31e4f6a799f24ee_bkransomware.exe
Size

71KB
MD5

2556ec8533008b46d31e4f6a799f24ee
SHA1

2124f8aaa670653450faaa9d95635b355b7acb3e
SHA256

9124522be7d10d17f16a44f4fd73744cf83a69c5594b2c55a2205cf3b48bd0d1
SHA512

ee592f30c24039f703b429f9ad147c2f468fd5778f7a88b8b83b9e999b7a04df03b19f8208d68791409ad521026265e4c55d9f2eb48bce1852cea4be279e274e
SSDEEP

1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazTy3:ZhpAyazIlyazTs

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2380	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"	2024-05-03_2556ec8533008b46d31e4f6a799f24ee_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	2024-05-03_2556ec8533008b46d31e4f6a799f24ee_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2844	2024-05-03_2556ec8533008b46d31e4f6a799f24ee_bkransomware.exe
Token: SeDebugPrivilege	2380	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2844 wrote to memory of 2380	2844	2024-05-03_2556ec8533008b46d31e4f6a799f24ee_bkransomware.exe	28
PID 2844 wrote to memory of 2380	2844	2024-05-03_2556ec8533008b46d31e4f6a799f24ee_bkransomware.exe	28
PID 2844 wrote to memory of 2380	2844	2024-05-03_2556ec8533008b46d31e4f6a799f24ee_bkransomware.exe	28
PID 2844 wrote to memory of 2380	2844	2024-05-03_2556ec8533008b46d31e4f6a799f24ee_bkransomware.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-03_2556ec8533008b46d31e4f6a799f24ee_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-03_2556ec8533008b46d31e4f6a799f24ee_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2844
- 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:2380

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\oZpFCzL66ncMyZm.exe

Filesize
71KB

MD5
a3519f5fad2ea64c4a36b80be2f4677f

SHA1
8444a03e8925e669e2ebd3c93930653578a27e56

SHA256
b28080a6c71d097f19aa285c76035a44b13e63f0a34fd72c99215588c3e555ea

SHA512
a6408f2951fd0539672f384a43ce14edd4ccebb36045abcacd924e8a68f0d0bfd3fe23ea0c07605f7ce64bfc74b4c553f33744bd6b6564cd90391d3f8adba239

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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