c44f71a72e5567d605fa03532adb448196069863bf75e5df5c3f8eb667de19dc

General

Target

2024-05-22_d963c26080080055b20de58a90439185_bkransomware.exe
Size

96KB
MD5

d963c26080080055b20de58a90439185
SHA1

fe0c06e30f3c2b947794fe767cc3ece9ee55ec2c
SHA256

c44f71a72e5567d605fa03532adb448196069863bf75e5df5c3f8eb667de19dc
SHA512

81bac6ac0ccd3c7a0e89380dbf35a6d2386e37499ef9897e55bc3dad5df01a0c993b9f9c387999f58afbd1cf2698538f20f479688609115a2290fd9546745ce3
SSDEEP

1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazTS/lztdM2Z6ns:ZhpAyazIlyazT0zhZ6s

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 3 IoCs

Processes:

OMB7vFRlp3zFzFD.exeCTS.exe

pid process

2180 OMB7vFRlp3zFzFD.exe
1208 CTS.exe
1224
Loads dropped DLL 3 IoCs

Processes:

2024-05-22_d963c26080080055b20de58a90439185_bkransomware.exe

pid process

2228 2024-05-22_d963c26080080055b20de58a90439185_bkransomware.exe
2228 2024-05-22_d963c26080080055b20de58a90439185_bkransomware.exe
848
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
2180	OMB7vFRlp3zFzFD.exe
1208	CTS.exe
1224

pid	process
2228	2024-05-22_d963c26080080055b20de58a90439185_bkransomware.exe
2228	2024-05-22_d963c26080080055b20de58a90439185_bkransomware.exe
848

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

2024-05-22_d963c26080080055b20de58a90439185_bkransomware.exeCTS.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	2024-05-22_d963c26080080055b20de58a90439185_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:

2024-05-22_d963c26080080055b20de58a90439185_bkransomware.exeCTS.exe

description ioc process

File created C:\Windows\CTS.exe 2024-05-22_d963c26080080055b20de58a90439185_bkransomware.exe
File created C:\Windows\CTS.exe CTS.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

2024-05-22_d963c26080080055b20de58a90439185_bkransomware.exeCTS.exe

description pid process

Token: SeDebugPrivilege 2228 2024-05-22_d963c26080080055b20de58a90439185_bkransomware.exe
Token: SeDebugPrivilege 1208 CTS.exe

description	ioc	process
File created	C:\Windows\CTS.exe	2024-05-22_d963c26080080055b20de58a90439185_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

description	pid	process
Token: SeDebugPrivilege	2228	2024-05-22_d963c26080080055b20de58a90439185_bkransomware.exe
Token: SeDebugPrivilege	1208	CTS.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

2024-05-22_d963c26080080055b20de58a90439185_bkransomware.exe

description	pid	process	target process
PID 2228 wrote to memory of 2180	2228	2024-05-22_d963c26080080055b20de58a90439185_bkransomware.exe	OMB7vFRlp3zFzFD.exe
PID 2228 wrote to memory of 2180	2228	2024-05-22_d963c26080080055b20de58a90439185_bkransomware.exe	OMB7vFRlp3zFzFD.exe
PID 2228 wrote to memory of 2180	2228	2024-05-22_d963c26080080055b20de58a90439185_bkransomware.exe	OMB7vFRlp3zFzFD.exe
PID 2228 wrote to memory of 2180	2228	2024-05-22_d963c26080080055b20de58a90439185_bkransomware.exe	OMB7vFRlp3zFzFD.exe
PID 2228 wrote to memory of 1208	2228	2024-05-22_d963c26080080055b20de58a90439185_bkransomware.exe	CTS.exe
PID 2228 wrote to memory of 1208	2228	2024-05-22_d963c26080080055b20de58a90439185_bkransomware.exe	CTS.exe
PID 2228 wrote to memory of 1208	2228	2024-05-22_d963c26080080055b20de58a90439185_bkransomware.exe	CTS.exe
PID 2228 wrote to memory of 1208	2228	2024-05-22_d963c26080080055b20de58a90439185_bkransomware.exe	CTS.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-22_d963c26080080055b20de58a90439185_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_d963c26080080055b20de58a90439185_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:2228

C:\Users\Admin\AppData\Local\Temp\OMB7vFRlp3zFzFD.exe
C:\Users\Admin\AppData\Local\Temp\OMB7vFRlp3zFzFD.exe
2⤵
- Executes dropped EXE
PID:2180

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:1208

Network

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\OMB7vFRlp3zFzFD.exe

Filesize
25KB

MD5
abbd49c180a2f8703f6306d6fa731fdc

SHA1
d63f4bfe7f74936b2fbace803e3da6103fbf6586

SHA256
5f411c0bd9ed9a42b0f07ed568c7d0cf358a83063b225a1f8f7da3296dde90f1

SHA512
290dd984acc451b778f3db8c510bae7aec1d9547c3ad0a1829df731c136e4ecc9a37dc6a786cf8f1ecc4d14339aed1288af25055f450f6f953138c8d4d5c36e9

Download Submit
C:\Windows\CTS.exe

Filesize
71KB

MD5
66df4ffab62e674af2e75b163563fc0b

SHA1
dec8a197312e41eeb3cfef01cb2a443f0205cd6e

SHA256
075a6eecd8da1795532318f9cf880efe42461f9464d63f74deb271d33110f163

SHA512
1588dd78e6e8972013c40cdb6acfb84c8df7b081197233ce621904b645356c805d0424bb93dd46c55834dc47d9ff39ee1323cf8e670841b3fff24ab98ba87f25

Download Submit
memory/2180-16-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads