ea18ad74d460aec70d1f49401a5d56b23ba90c392f1172a924f6272430bef78e

General

Target

2024-04-28_f4bab9d986f97cf0676e07f2f6da69ed_bkransomware.exe
Size

96KB
MD5

f4bab9d986f97cf0676e07f2f6da69ed
SHA1

4d7baa80e71cc5f31033193c8db2e5bf7842c723
SHA256

ea18ad74d460aec70d1f49401a5d56b23ba90c392f1172a924f6272430bef78e
SHA512

f28b89d0654c7a965b56eb00ac8091227b18fab035dca56efd6fe06fff03df0e106653a64a4982728f96e22a1e84ee66191ea37ab999ac188c4107e08be2be00
SSDEEP

1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazTZdIQOHg26:ZhpAyazIlyazTZehA3

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 2 IoCs

Processes:

jxEQJdTrW6XS6Sp.exeCTS.exe

pid process

2028 jxEQJdTrW6XS6Sp.exe
2624 CTS.exe
Loads dropped DLL 3 IoCs

Processes:

2024-04-28_f4bab9d986f97cf0676e07f2f6da69ed_bkransomware.exe

pid process

3056 2024-04-28_f4bab9d986f97cf0676e07f2f6da69ed_bkransomware.exe
3056 2024-04-28_f4bab9d986f97cf0676e07f2f6da69ed_bkransomware.exe
1188
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
2028	jxEQJdTrW6XS6Sp.exe
2624	CTS.exe

pid	process
3056	2024-04-28_f4bab9d986f97cf0676e07f2f6da69ed_bkransomware.exe
3056	2024-04-28_f4bab9d986f97cf0676e07f2f6da69ed_bkransomware.exe
1188

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_f4bab9d986f97cf0676e07f2f6da69ed_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_f4bab9d986f97cf0676e07f2f6da69ed_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_f4bab9d986f97cf0676e07f2f6da69ed_bkransomware.exeCTS.exe

description ioc process

File created C:\Windows\CTS.exe 2024-04-28_f4bab9d986f97cf0676e07f2f6da69ed_bkransomware.exe
File created C:\Windows\CTS.exe CTS.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

2024-04-28_f4bab9d986f97cf0676e07f2f6da69ed_bkransomware.exeCTS.exe

description pid process

Token: SeDebugPrivilege 3056 2024-04-28_f4bab9d986f97cf0676e07f2f6da69ed_bkransomware.exe
Token: SeDebugPrivilege 2624 CTS.exe

description	ioc	process
File created	C:\Windows\CTS.exe	2024-04-28_f4bab9d986f97cf0676e07f2f6da69ed_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

description	pid	process
Token: SeDebugPrivilege	3056	2024-04-28_f4bab9d986f97cf0676e07f2f6da69ed_bkransomware.exe
Token: SeDebugPrivilege	2624	CTS.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

2024-04-28_f4bab9d986f97cf0676e07f2f6da69ed_bkransomware.exe

description	pid	process	target process
PID 3056 wrote to memory of 2028	3056	2024-04-28_f4bab9d986f97cf0676e07f2f6da69ed_bkransomware.exe	jxEQJdTrW6XS6Sp.exe
PID 3056 wrote to memory of 2028	3056	2024-04-28_f4bab9d986f97cf0676e07f2f6da69ed_bkransomware.exe	jxEQJdTrW6XS6Sp.exe
PID 3056 wrote to memory of 2028	3056	2024-04-28_f4bab9d986f97cf0676e07f2f6da69ed_bkransomware.exe	jxEQJdTrW6XS6Sp.exe
PID 3056 wrote to memory of 2028	3056	2024-04-28_f4bab9d986f97cf0676e07f2f6da69ed_bkransomware.exe	jxEQJdTrW6XS6Sp.exe
PID 3056 wrote to memory of 2624	3056	2024-04-28_f4bab9d986f97cf0676e07f2f6da69ed_bkransomware.exe	CTS.exe
PID 3056 wrote to memory of 2624	3056	2024-04-28_f4bab9d986f97cf0676e07f2f6da69ed_bkransomware.exe	CTS.exe
PID 3056 wrote to memory of 2624	3056	2024-04-28_f4bab9d986f97cf0676e07f2f6da69ed_bkransomware.exe	CTS.exe
PID 3056 wrote to memory of 2624	3056	2024-04-28_f4bab9d986f97cf0676e07f2f6da69ed_bkransomware.exe	CTS.exe

C:\Users\Admin\AppData\Local\Temp\2024-04-28_f4bab9d986f97cf0676e07f2f6da69ed_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-28_f4bab9d986f97cf0676e07f2f6da69ed_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:3056

C:\Users\Admin\AppData\Local\Temp\jxEQJdTrW6XS6Sp.exe
C:\Users\Admin\AppData\Local\Temp\jxEQJdTrW6XS6Sp.exe
2⤵
- Executes dropped EXE
PID:2028

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:2624

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\jxEQJdTrW6XS6Sp.exe
Filesize
96KB

MD5
82d175fd8982bf3cd647570d31568308

SHA1
d2765aaeea56204e10c97e5ed2486cc1c5340735

SHA256
6c0dbf3d18eb1003b0ebfa89669af2e1aa0d9f72b779f52e3ab63d68e92b857d

SHA512
961a01635f5ac5d4abd14e4f3fb982e758b01f96fa231fcb9b4a6bfcede9265c9f253db2c054a159a781d76c11a4992f67915ebe6d965557c84dc429a43e7774

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

MD5
66df4ffab62e674af2e75b163563fc0b

SHA1
dec8a197312e41eeb3cfef01cb2a443f0205cd6e

SHA256
075a6eecd8da1795532318f9cf880efe42461f9464d63f74deb271d33110f163

SHA512
1588dd78e6e8972013c40cdb6acfb84c8df7b081197233ce621904b645356c805d0424bb93dd46c55834dc47d9ff39ee1323cf8e670841b3fff24ab98ba87f25

Download Submit
\Users\Admin\AppData\Local\Temp\jxEQJdTrW6XS6Sp.exe
Filesize
25KB

MD5
abbd49c180a2f8703f6306d6fa731fdc

SHA1
d63f4bfe7f74936b2fbace803e3da6103fbf6586

SHA256
5f411c0bd9ed9a42b0f07ed568c7d0cf358a83063b225a1f8f7da3296dde90f1

SHA512
290dd984acc451b778f3db8c510bae7aec1d9547c3ad0a1829df731c136e4ecc9a37dc6a786cf8f1ecc4d14339aed1288af25055f450f6f953138c8d4d5c36e9

Download Submit
memory/2028-15-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads