d3f5c28531c0db967be69fa437dcd7437d81fdc9c1bbb6860b7ab9dcb2d1200c

General

Target

2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exe
Size

96KB
MD5

32114b316b47eb935499abfe766b3739
SHA1

39e6cd2a97475cedf70ab4ef29a089af513b4779
SHA256

d3f5c28531c0db967be69fa437dcd7437d81fdc9c1bbb6860b7ab9dcb2d1200c
SHA512

49df773f572f31f66e6fde7ff2aa719e59c44cb0bb3cad07c4e91d3396d35ee810b271a11529de53797ac1804ab47f4491e513d9a49566b8f2fcda1a40db9177
SSDEEP

1536:Fc8N7UsWjcd9w+AyabjDbxE+MwmvlzuazTI+ypaRFu144OZkcMoeS4NZd1fu:ZRpAyazIliazT9MajuulZkcMXTd1m

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 2 IoCs

Processes:

PHt79Y52M8FTjVW.exeCTS.exe

pid process

3004 PHt79Y52M8FTjVW.exe
1748 CTS.exe
Loads dropped DLL 3 IoCs

Processes:

2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exe

pid process

2928 2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exe
2928 2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exe
2812
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

pid	process
3004	PHt79Y52M8FTjVW.exe
1748	CTS.exe

pid	process
2928	2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exe
2928	2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exe
2812

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exeCTS.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	2024-05-24_32114b316b47eb935499abfe766b3739_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

Processes:

2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exeCTS.exe

description ioc process

File created C:\Windows\CTS.exe 2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exe
File created C:\Windows\CTS.exe CTS.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exeCTS.exe

description pid process

Token: SeDebugPrivilege 2928 2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exe
Token: SeDebugPrivilege 1748 CTS.exe

description	ioc	process
File created	C:\Windows\CTS.exe	2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

description	pid	process
Token: SeDebugPrivilege	2928	2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exe
Token: SeDebugPrivilege	1748	CTS.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exe

description	pid	process	target process
PID 2928 wrote to memory of 3004	2928	2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exe	PHt79Y52M8FTjVW.exe
PID 2928 wrote to memory of 3004	2928	2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exe	PHt79Y52M8FTjVW.exe
PID 2928 wrote to memory of 3004	2928	2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exe	PHt79Y52M8FTjVW.exe
PID 2928 wrote to memory of 3004	2928	2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exe	PHt79Y52M8FTjVW.exe
PID 2928 wrote to memory of 1748	2928	2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exe	CTS.exe
PID 2928 wrote to memory of 1748	2928	2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exe	CTS.exe
PID 2928 wrote to memory of 1748	2928	2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exe	CTS.exe
PID 2928 wrote to memory of 1748	2928	2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exe	CTS.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2928

C:\Users\Admin\AppData\Local\Temp\PHt79Y52M8FTjVW.exe
C:\Users\Admin\AppData\Local\Temp\PHt79Y52M8FTjVW.exe
2⤵
- Executes dropped EXE
PID:3004

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:1748

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\PHt79Y52M8FTjVW.exe
Filesize
96KB

MD5
92a958afe64c56108707e8c067c4c410

SHA1
bfebc5ca53d5158f4d2188c63167c3a772112ecf

SHA256
a15851c4694821a9407f07f421dc039081b71cdd3e2b426b54a2893c6e29e948

SHA512
543d5b66aabfde612bf13846f96faf28a31d28659a390bfded93ad79f09358680e48970ec2893dca84fb137cc89a51ddc46d31a8b545d792b38680b645ddc3d9

Download Submit
C:\Windows\CTS.exe
Filesize
71KB

MD5
f9d4ab0a726adc9b5e4b7d7b724912f1

SHA1
3d42ca2098475924f70ee4a831c4f003b4682328

SHA256
b43be87e8586ca5e995979883468f3b3d9dc5212fbfd0b5f3341a5b7c56e0fbc

SHA512
22a5f0e4b2716244e978ee50771823926f86baf0382ece48fd049f039cf77b5eb0691d83c61148903cff081fdbea969f47b8ed521647717f42bbed5c64552432

Download Submit
\Users\Admin\AppData\Local\Temp\PHt79Y52M8FTjVW.exe
Filesize
25KB

MD5
abbd49c180a2f8703f6306d6fa731fdc

SHA1
d63f4bfe7f74936b2fbace803e3da6103fbf6586

SHA256
5f411c0bd9ed9a42b0f07ed568c7d0cf358a83063b225a1f8f7da3296dde90f1

SHA512
290dd984acc451b778f3db8c510bae7aec1d9547c3ad0a1829df731c136e4ecc9a37dc6a786cf8f1ecc4d14339aed1288af25055f450f6f953138c8d4d5c36e9

Download Submit
memory/3004-15-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads