7eacfc2d9de3958bdb37b45aea9adf05f7fa54385eab52008bb8221657e26ed6

Analysis

max time kernel
51s
max time network
57s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
15/06/2024, 18:56

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General

Target

2024-06-15_9f32326073aca37dd5a18c13b419e56a_bkransomware.exe
Size

71KB
MD5

9f32326073aca37dd5a18c13b419e56a
SHA1

0d93ca451ea0ff6f2824588bda51fe0bfe0a6dbf
SHA256

7eacfc2d9de3958bdb37b45aea9adf05f7fa54385eab52008bb8221657e26ed6
SHA512

ac7c83bd1d3862d396b6784f3c6926c281563b8deec9a79a670117c0269259010c6e6a6ae987e1e740bfa41d8d2796376a503a5de26596e16334f8038d249468
SSDEEP

1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazTU:ZhpAyazIlyazTU

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1296	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"	CTS.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	2024-06-15_9f32326073aca37dd5a18c13b419e56a_bkransomware.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	2024-06-15_9f32326073aca37dd5a18c13b419e56a_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1700	2024-06-15_9f32326073aca37dd5a18c13b419e56a_bkransomware.exe
Token: SeDebugPrivilege	1296	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1700 wrote to memory of 1296	1700	2024-06-15_9f32326073aca37dd5a18c13b419e56a_bkransomware.exe	81
PID 1700 wrote to memory of 1296	1700	2024-06-15_9f32326073aca37dd5a18c13b419e56a_bkransomware.exe	81
PID 1700 wrote to memory of 1296	1700	2024-06-15_9f32326073aca37dd5a18c13b419e56a_bkransomware.exe	81

C:\Users\Admin\AppData\Local\Temp\2024-06-15_9f32326073aca37dd5a18c13b419e56a_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-15_9f32326073aca37dd5a18c13b419e56a_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1700
- 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:1296

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml

Filesize
393KB

MD5
824cd88eb16e3875a32f852fccaa71f6

SHA1
aa12fef71728609da45e853826b526061cfd961b

SHA256
e7d6e6e65015d314f7c95f8e216eb2bd6e5f745e570255691e3f78b4f4f39187

SHA512
431cdb0fba076822cd4c5d97c7d679bb54efa787cc73151642547caed108feec5d49fb568e5a180012390e72a41dd74ab087a5955f9a983a2f7fd14a2038f862

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C:\Users\Admin\AppData\Local\Temp\u0FkVG8ar8Q4ECm.exe

Filesize
71KB

MD5
2dfb9a59a816310ebac87941abcc6e25

SHA1
b2379d5670d3b8678d771677b68483c895c83967

SHA256
fda3305cd363022037bbc3cb2056d536a5ac53bd0cb2e2dccfc3af82474f2d71

SHA512
a4e1d73446950a3aa06d2811e01ad073b4ed227c440c874a0b8b0ab62d194573cdf8d370b0e0351c380a41cc5509a31f05cfe0dc7c3e13a2724181c6ffbd248b

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

Replay Monitor

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Downloads