05f7e88ea814c8d699f5364abf42f82b16943676ea6bdf2d528f0c6995560134

Analysis

max time kernel
117s
max time network
124s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
30/06/2024, 00:24

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General

Target

2024-06-30_2f81a659a182c0e3cf3a2fb3923b3e3f_bkransomware.exe
Size

71KB
MD5

2f81a659a182c0e3cf3a2fb3923b3e3f
SHA1

b0cdda5590db83885180f9502921a51df5043792
SHA256

05f7e88ea814c8d699f5364abf42f82b16943676ea6bdf2d528f0c6995560134
SHA512

98e7e2c4ed0d5be21d2f85f3141ee6ad5ee522ee5b829dbd688fe259d2fa4237bbb3ba017fb36df6567b34b2e1138dcc6c3f441a1839593e1bd47c0ab2949cea
SSDEEP

1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazTW:ZhpAyazIlyazTW

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2328	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"	2024-06-30_2f81a659a182c0e3cf3a2fb3923b3e3f_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	2024-06-30_2f81a659a182c0e3cf3a2fb3923b3e3f_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2392	2024-06-30_2f81a659a182c0e3cf3a2fb3923b3e3f_bkransomware.exe
Token: SeDebugPrivilege	2328	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2392 wrote to memory of 2328	2392	2024-06-30_2f81a659a182c0e3cf3a2fb3923b3e3f_bkransomware.exe	28
PID 2392 wrote to memory of 2328	2392	2024-06-30_2f81a659a182c0e3cf3a2fb3923b3e3f_bkransomware.exe	28
PID 2392 wrote to memory of 2328	2392	2024-06-30_2f81a659a182c0e3cf3a2fb3923b3e3f_bkransomware.exe	28
PID 2392 wrote to memory of 2328	2392	2024-06-30_2f81a659a182c0e3cf3a2fb3923b3e3f_bkransomware.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-30_2f81a659a182c0e3cf3a2fb3923b3e3f_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-30_2f81a659a182c0e3cf3a2fb3923b3e3f_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2392
- 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:2328

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\342kRHTp7S8fj3p.exe

Filesize
71KB

MD5
efa6c8cbb72874022c2874dda6907908

SHA1
76923e202fc7bf2fb2e6435310a936f52e2ef5fd

SHA256
b86bfd92e63cb54b524590e9105479664661b64fa38d785e8f1daafd999fdf12

SHA512
16c125ef66096a3edf8df8871e51b16bd509c89d39df39589a39523daa97577fccddcecc4f85907cc0746683f7150dc7e267c5fab8dd9fc869903e95c23bc8f9

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