6f2765fc71ae10668040a957b5268157a27ec970cd1abcdf299dd7776fd1f247

Analysis

max time kernel
93s
max time network
101s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
04-06-2024 12:01

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General

Target

2024-06-04_f74e22dd56d8de303124c8eb9f76c893_bkransomware.exe
Size

96KB
MD5

f74e22dd56d8de303124c8eb9f76c893
SHA1

93ff53a91c9835c55e8db7c3508b448933385aac
SHA256

6f2765fc71ae10668040a957b5268157a27ec970cd1abcdf299dd7776fd1f247
SHA512

2c30b64858e466498e21a3b2fda33d798f570b15b5e3da65543a5d5c933dc4360f21d6824290b025fb15d799e9a2da1f16c14d8d6e687675a416245ed835b637
SSDEEP

1536:Fc8N7UsWjcd9w+AyabjDbxE+MwmvlzuazT6uGQbROOA6O1UMU:ZRpAyazIliazTTG3PUR

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
4788	sc2MgVC7V13HyP6.exe
3800	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"	2024-06-04_f74e22dd56d8de303124c8eb9f76c893_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	2024-06-04_f74e22dd56d8de303124c8eb9f76c893_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2908	2024-06-04_f74e22dd56d8de303124c8eb9f76c893_bkransomware.exe
Token: SeDebugPrivilege	3800	CTS.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2908 wrote to memory of 4788	2908	2024-06-04_f74e22dd56d8de303124c8eb9f76c893_bkransomware.exe	82
PID 2908 wrote to memory of 4788	2908	2024-06-04_f74e22dd56d8de303124c8eb9f76c893_bkransomware.exe	82
PID 2908 wrote to memory of 3800	2908	2024-06-04_f74e22dd56d8de303124c8eb9f76c893_bkransomware.exe	83
PID 2908 wrote to memory of 3800	2908	2024-06-04_f74e22dd56d8de303124c8eb9f76c893_bkransomware.exe	83
PID 2908 wrote to memory of 3800	2908	2024-06-04_f74e22dd56d8de303124c8eb9f76c893_bkransomware.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-06-04_f74e22dd56d8de303124c8eb9f76c893_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-04_f74e22dd56d8de303124c8eb9f76c893_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2908
- C:\Users\Admin\AppData\Local\Temp\sc2MgVC7V13HyP6.exe
  C:\Users\Admin\AppData\Local\Temp\sc2MgVC7V13HyP6.exe
  2⤵
  - Executes dropped EXE
  PID:4788
- 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:3800

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\Microsoft\Office\16.0\excel.exe_Rules.xml

Filesize
394KB

MD5
01c226fe23d2a8fef39fb735b82165e4

SHA1
ded2294a5ffb16c3550206c450d60e7401f1583a

SHA256
0c5bcc360892985ff40abc34120be11e967b90682bfdc9d0e6b2d97519c87807

SHA512
93425983e5943a73e99e128c27941c7add4d92355df5cc93e94823c915867111f85661bc52f266bb01de8c58261e7b0d665b7829f0f840b9b0376d6109c6c778

Download Submit
C:\Users\Admin\AppData\Local\Temp\sc2MgVC7V13HyP6.exe

Filesize
25KB

MD5
abbd49c180a2f8703f6306d6fa731fdc

SHA1
d63f4bfe7f74936b2fbace803e3da6103fbf6586

SHA256
5f411c0bd9ed9a42b0f07ed568c7d0cf358a83063b225a1f8f7da3296dde90f1

SHA512
290dd984acc451b778f3db8c510bae7aec1d9547c3ad0a1829df731c136e4ecc9a37dc6a786cf8f1ecc4d14339aed1288af25055f450f6f953138c8d4d5c36e9

Download Submit
C:\Windows\CTS.exe

Filesize
71KB

MD5
f9d4ab0a726adc9b5e4b7d7b724912f1

SHA1
3d42ca2098475924f70ee4a831c4f003b4682328

SHA256
b43be87e8586ca5e995979883468f3b3d9dc5212fbfd0b5f3341a5b7c56e0fbc

SHA512
22a5f0e4b2716244e978ee50771823926f86baf0382ece48fd049f039cf77b5eb0691d83c61148903cff081fdbea969f47b8ed521647717f42bbed5c64552432

Download Submit
memory/4788-10-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads