56109bb5d2409532d9e862fcd21448519ea752530e55576a48e2ceaa1648c599

General

Target

2024-04-28_0e212a11c6b12c052d0f57e005222243_bkransomware.exe
Size

96KB
MD5

0e212a11c6b12c052d0f57e005222243
SHA1

da5144bb70b9660f0714619ceffe2f2d514de92e
SHA256

56109bb5d2409532d9e862fcd21448519ea752530e55576a48e2ceaa1648c599
SHA512

ecb5bb9db8385c7dbc7ed5db959f1afcca01abacdd9c7c84c96b3f142f23dc48746a94e0bd24724231f80ab8ce9fe73d2dd986f8c71e6d2c98a058421467ce64
SSDEEP

1536:Fc8N7UsWjcd9w+AyabjDbxE+MwmvlzuazTNmgGeVD/WcX16Z:ZRpAyazIliazTNmgl+Co

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 2 IoCs

Processes:

H7BfgxdgXMiLIFi.exeCTS.exe

pid process

1448 H7BfgxdgXMiLIFi.exe
1404 CTS.exe
Loads dropped DLL 3 IoCs

Processes:

2024-04-28_0e212a11c6b12c052d0f57e005222243_bkransomware.exe

pid process

2696 2024-04-28_0e212a11c6b12c052d0f57e005222243_bkransomware.exe
2696 2024-04-28_0e212a11c6b12c052d0f57e005222243_bkransomware.exe
1756
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
1448	H7BfgxdgXMiLIFi.exe
1404	CTS.exe

pid	process
2696	2024-04-28_0e212a11c6b12c052d0f57e005222243_bkransomware.exe
2696	2024-04-28_0e212a11c6b12c052d0f57e005222243_bkransomware.exe
1756

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

2024-04-28_0e212a11c6b12c052d0f57e005222243_bkransomware.exeCTS.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	2024-04-28_0e212a11c6b12c052d0f57e005222243_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:

2024-04-28_0e212a11c6b12c052d0f57e005222243_bkransomware.exeCTS.exe

description ioc process

File created C:\Windows\CTS.exe 2024-04-28_0e212a11c6b12c052d0f57e005222243_bkransomware.exe
File created C:\Windows\CTS.exe CTS.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

2024-04-28_0e212a11c6b12c052d0f57e005222243_bkransomware.exeCTS.exe

description pid process

Token: SeDebugPrivilege 2696 2024-04-28_0e212a11c6b12c052d0f57e005222243_bkransomware.exe
Token: SeDebugPrivilege 1404 CTS.exe

description	ioc	process
File created	C:\Windows\CTS.exe	2024-04-28_0e212a11c6b12c052d0f57e005222243_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

description	pid	process
Token: SeDebugPrivilege	2696	2024-04-28_0e212a11c6b12c052d0f57e005222243_bkransomware.exe
Token: SeDebugPrivilege	1404	CTS.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

2024-04-28_0e212a11c6b12c052d0f57e005222243_bkransomware.exe

description	pid	process	target process
PID 2696 wrote to memory of 1448	2696	2024-04-28_0e212a11c6b12c052d0f57e005222243_bkransomware.exe	H7BfgxdgXMiLIFi.exe
PID 2696 wrote to memory of 1448	2696	2024-04-28_0e212a11c6b12c052d0f57e005222243_bkransomware.exe	H7BfgxdgXMiLIFi.exe
PID 2696 wrote to memory of 1448	2696	2024-04-28_0e212a11c6b12c052d0f57e005222243_bkransomware.exe	H7BfgxdgXMiLIFi.exe
PID 2696 wrote to memory of 1448	2696	2024-04-28_0e212a11c6b12c052d0f57e005222243_bkransomware.exe	H7BfgxdgXMiLIFi.exe
PID 2696 wrote to memory of 1404	2696	2024-04-28_0e212a11c6b12c052d0f57e005222243_bkransomware.exe	CTS.exe
PID 2696 wrote to memory of 1404	2696	2024-04-28_0e212a11c6b12c052d0f57e005222243_bkransomware.exe	CTS.exe
PID 2696 wrote to memory of 1404	2696	2024-04-28_0e212a11c6b12c052d0f57e005222243_bkransomware.exe	CTS.exe
PID 2696 wrote to memory of 1404	2696	2024-04-28_0e212a11c6b12c052d0f57e005222243_bkransomware.exe	CTS.exe

C:\Users\Admin\AppData\Local\Temp\2024-04-28_0e212a11c6b12c052d0f57e005222243_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-28_0e212a11c6b12c052d0f57e005222243_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:2696

C:\Users\Admin\AppData\Local\Temp\H7BfgxdgXMiLIFi.exe
C:\Users\Admin\AppData\Local\Temp\H7BfgxdgXMiLIFi.exe
2⤵
- Executes dropped EXE
PID:1448

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:1404

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\H7BfgxdgXMiLIFi.exe
Filesize
96KB

MD5
601d1669e35a570ad2f3103dad5752e5

SHA1
7b4a594ace97c8902871ccab5bd4eaf0fe037c08

SHA256
a4f40cadeeeb37a35574592627e3e761328aded6ec91cdae726fe85742fe242b

SHA512
6472e544f2a8346b4b960e8c6ef9b4b3b7aeb6d3f4f2d8d925c383a93852e0d3ccb95b0f2a7215ebd913c7a164b66a75c4834c0ce80e86d8634379732c42abb5

Download Submit
C:\Users\Admin\AppData\Local\Temp\H7BfgxdgXMiLIFi.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/1448-15-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads