39598709c182d94d979250af01e2b7d865e0fd151b0ac5bf8099262d8dd724e6

Analysis

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

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
30/04/2024, 01:04

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General

Target

2024-04-30_bcd8968cc9d538f4d7b294b477f456e3_bkransomware.exe
Size

71KB
MD5

bcd8968cc9d538f4d7b294b477f456e3
SHA1

0a80cb28a8ead18b7895d66fdac5d54411096ec5
SHA256

39598709c182d94d979250af01e2b7d865e0fd151b0ac5bf8099262d8dd724e6
SHA512

ffeccf5a1d67d81f2eed800b5957ad2d0238f8854eb2efd1ed70ac36aaa0df1d817b2f55ee0b5b49301676bd71895946ed742daacb72a6263ad78af693c9f34b
SSDEEP

1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazTF:ZhpAyazIlyazTF

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2196	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"	2024-04-30_bcd8968cc9d538f4d7b294b477f456e3_bkransomware.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	2024-04-30_bcd8968cc9d538f4d7b294b477f456e3_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1028	2024-04-30_bcd8968cc9d538f4d7b294b477f456e3_bkransomware.exe
Token: SeDebugPrivilege	2196	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1028 wrote to memory of 2196	1028	2024-04-30_bcd8968cc9d538f4d7b294b477f456e3_bkransomware.exe	28
PID 1028 wrote to memory of 2196	1028	2024-04-30_bcd8968cc9d538f4d7b294b477f456e3_bkransomware.exe	28
PID 1028 wrote to memory of 2196	1028	2024-04-30_bcd8968cc9d538f4d7b294b477f456e3_bkransomware.exe	28
PID 1028 wrote to memory of 2196	1028	2024-04-30_bcd8968cc9d538f4d7b294b477f456e3_bkransomware.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-30_bcd8968cc9d538f4d7b294b477f456e3_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-30_bcd8968cc9d538f4d7b294b477f456e3_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1028
- 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:2196

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\Q7XxYfHpSM2JfIN.exe

Filesize
71KB

MD5
7792edf431f567bc91b697104e92e798

SHA1
b28575e278898ca63dcea87e40617afc7d85bdab

SHA256
08f2ef961496ad170b9efa40bf833ed056b773ad5a05eb4f72969abfea58c1d8

SHA512
eefb791c3a2adbf720aa85910a69f233dcc8e7b724ff46539b11c8d1c78960d2d31ed07fdc0b30b10142c411fcd66fabff3cc46a5c1f18c7d4b39017de78c77d

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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