af319509e52b77336f8736215052108b88f18e12c07142c75d9d53e2fcecd44a

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
10-07-2024 06:34

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General

Target

2024-07-10_bb19de9f5329db71d81e69ee2f21ddd3_bkransomware.exe
Size

96KB
MD5

bb19de9f5329db71d81e69ee2f21ddd3
SHA1

647723334252e318df75800e3675126b5b48acfd
SHA256

af319509e52b77336f8736215052108b88f18e12c07142c75d9d53e2fcecd44a
SHA512

fe6b835a7b3c8b2cf9cca9003d71b0e051aaf6678c631d85eb45cf9ced9b8cb95de18840e09cba08a3d474a959326d6f48ac7d6bcc7c757eb3319e57eb2e891e
SSDEEP

1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazT0N/UWpApm8MSpdPu0:ZhpAyazIlyazTClSBMK

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
1732	zhRPanaknL8K0bO.exe
1576	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"	2024-07-10_bb19de9f5329db71d81e69ee2f21ddd3_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	2024-07-10_bb19de9f5329db71d81e69ee2f21ddd3_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3932	2024-07-10_bb19de9f5329db71d81e69ee2f21ddd3_bkransomware.exe
Token: SeDebugPrivilege	1576	CTS.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3932 wrote to memory of 1732	3932	2024-07-10_bb19de9f5329db71d81e69ee2f21ddd3_bkransomware.exe	81
PID 3932 wrote to memory of 1732	3932	2024-07-10_bb19de9f5329db71d81e69ee2f21ddd3_bkransomware.exe	81
PID 3932 wrote to memory of 1576	3932	2024-07-10_bb19de9f5329db71d81e69ee2f21ddd3_bkransomware.exe	83
PID 3932 wrote to memory of 1576	3932	2024-07-10_bb19de9f5329db71d81e69ee2f21ddd3_bkransomware.exe	83
PID 3932 wrote to memory of 1576	3932	2024-07-10_bb19de9f5329db71d81e69ee2f21ddd3_bkransomware.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-07-10_bb19de9f5329db71d81e69ee2f21ddd3_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-10_bb19de9f5329db71d81e69ee2f21ddd3_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3932
- C:\Users\Admin\AppData\Local\Temp\zhRPanaknL8K0bO.exe
  C:\Users\Admin\AppData\Local\Temp\zhRPanaknL8K0bO.exe
  2⤵
  - Executes dropped EXE
  PID:1732
- 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:1576

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
394KB

MD5
9f9a02fc36ce9730989c4c29310539c0

SHA1
b03345360c7be522ce6b9ab73989d40e8affe206

SHA256
ca16c223a28cf879f0181c1cdccc50a2d58987f2fd3b32cbde4c527970835367

SHA512
ca2e9ff4249d37c039e0a6ed92907c8767c5dc49ebbdb76f3efd90bb3c1f30380b3ba794b165afe20f9c20dba2aca615f2bad9abf4c78eb408f067f153ab0e86

Download Submit
C:\Users\Admin\AppData\Local\Temp\zhRPanaknL8K0bO.exe

Filesize
25KB

MD5
abbd49c180a2f8703f6306d6fa731fdc

SHA1
d63f4bfe7f74936b2fbace803e3da6103fbf6586

SHA256
5f411c0bd9ed9a42b0f07ed568c7d0cf358a83063b225a1f8f7da3296dde90f1

SHA512
290dd984acc451b778f3db8c510bae7aec1d9547c3ad0a1829df731c136e4ecc9a37dc6a786cf8f1ecc4d14339aed1288af25055f450f6f953138c8d4d5c36e9

Download Submit
C:\Windows\CTS.exe

Filesize
71KB

MD5
66df4ffab62e674af2e75b163563fc0b

SHA1
dec8a197312e41eeb3cfef01cb2a443f0205cd6e

SHA256
075a6eecd8da1795532318f9cf880efe42461f9464d63f74deb271d33110f163

SHA512
1588dd78e6e8972013c40cdb6acfb84c8df7b081197233ce621904b645356c805d0424bb93dd46c55834dc47d9ff39ee1323cf8e670841b3fff24ab98ba87f25

Download Submit
memory/1732-8-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads