803823f9c11b508b839dd906ca03f59b5d361495a67c8074099846f2bc7539f8

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
27/06/2024, 08:48

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General

Target

2024-06-27_76a3a45f7ab66676b9ea57b1e1a8f982_bkransomware.exe
Size

71KB
MD5

76a3a45f7ab66676b9ea57b1e1a8f982
SHA1

c0d8b4a440c46b8de0ca4bed3a3349c478446efb
SHA256

803823f9c11b508b839dd906ca03f59b5d361495a67c8074099846f2bc7539f8
SHA512

ad2a8deec6e45db7b6c7566edbc064efbdf82b81953dde9d8b1eb67008365294010b336191fcc654a2b8f49134fae2ff628194f0bce9b71ce8aca3fea3aea608
SSDEEP

1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazTC:ZhpAyazIlyazTC

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1412	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_76a3a45f7ab66676b9ea57b1e1a8f982_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_76a3a45f7ab66676b9ea57b1e1a8f982_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2944	2024-06-27_76a3a45f7ab66676b9ea57b1e1a8f982_bkransomware.exe
Token: SeDebugPrivilege	1412	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2944 wrote to memory of 1412	2944	2024-06-27_76a3a45f7ab66676b9ea57b1e1a8f982_bkransomware.exe	28
PID 2944 wrote to memory of 1412	2944	2024-06-27_76a3a45f7ab66676b9ea57b1e1a8f982_bkransomware.exe	28
PID 2944 wrote to memory of 1412	2944	2024-06-27_76a3a45f7ab66676b9ea57b1e1a8f982_bkransomware.exe	28
PID 2944 wrote to memory of 1412	2944	2024-06-27_76a3a45f7ab66676b9ea57b1e1a8f982_bkransomware.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-27_76a3a45f7ab66676b9ea57b1e1a8f982_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-27_76a3a45f7ab66676b9ea57b1e1a8f982_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2944
- 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:1412

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\tt8ux9Gv0MUOAA4.exe

Filesize
71KB

MD5
1c87e3c9fb96d45926fd6b3621a40e48

SHA1
c6cf21f2dd833af23da25ac8413d3e0031eac479

SHA256
294b2a51dbacc1b9a19b91415a4b3db89f5e502234ffbfa9232cd1eab587475b

SHA512
a48cf6c8a60f3fe26e508e4fbd5affd61c15a7f3c246bf2a2ffd446e47ea1f58f880fd786ca839bdae6a3496623a795dffa6e1bee6c2193e1f8702e1d3a1f5df

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

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Downloads