47836c9c0914783ad2e8e4b5210b598c7021dfed11997d0d23717dcaa1cc3e87

General

Target

2024-05-27_8d44913e4894b840794d56a893480377_bkransomware.exe
Size

96KB
MD5

8d44913e4894b840794d56a893480377
SHA1

4f332aaa5e10748555a066a28ce31acdef9e0fc6
SHA256

47836c9c0914783ad2e8e4b5210b598c7021dfed11997d0d23717dcaa1cc3e87
SHA512

5f75702cb93a5c14dffe79a15afd00c5eb710fd309a3119597bd3d5a8ff233641d8c439bb0c5f2c33c4f8d1a1b22602d0de89c1f6bd1a5417d8b4c3f2e45490f
SSDEEP

1536:Fc8N7UsWjcd9w+AyabjDbxE+MwmvlzuazTEncjt+la4HWuLyAgh6:ZRpAyazIliazTEcjya4HWif/

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 2 IoCs

Processes:

g8QX7UIl5CLvP5k.exeCTS.exe

pid process

2872 g8QX7UIl5CLvP5k.exe
2192 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

pid	process
2872	g8QX7UIl5CLvP5k.exe
2192	CTS.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

2024-05-27_8d44913e4894b840794d56a893480377_bkransomware.exeCTS.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	2024-05-27_8d44913e4894b840794d56a893480377_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:

2024-05-27_8d44913e4894b840794d56a893480377_bkransomware.exeCTS.exe

description ioc process

File created C:\Windows\CTS.exe 2024-05-27_8d44913e4894b840794d56a893480377_bkransomware.exe
File created C:\Windows\CTS.exe CTS.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

2024-05-27_8d44913e4894b840794d56a893480377_bkransomware.exeCTS.exe

description pid process

Token: SeDebugPrivilege 3284 2024-05-27_8d44913e4894b840794d56a893480377_bkransomware.exe
Token: SeDebugPrivilege 2192 CTS.exe

description	ioc	process
File created	C:\Windows\CTS.exe	2024-05-27_8d44913e4894b840794d56a893480377_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

description	pid	process
Token: SeDebugPrivilege	3284	2024-05-27_8d44913e4894b840794d56a893480377_bkransomware.exe
Token: SeDebugPrivilege	2192	CTS.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

2024-05-27_8d44913e4894b840794d56a893480377_bkransomware.exe

description	pid	process	target process
PID 3284 wrote to memory of 2872	3284	2024-05-27_8d44913e4894b840794d56a893480377_bkransomware.exe	g8QX7UIl5CLvP5k.exe
PID 3284 wrote to memory of 2872	3284	2024-05-27_8d44913e4894b840794d56a893480377_bkransomware.exe	g8QX7UIl5CLvP5k.exe
PID 3284 wrote to memory of 2192	3284	2024-05-27_8d44913e4894b840794d56a893480377_bkransomware.exe	CTS.exe
PID 3284 wrote to memory of 2192	3284	2024-05-27_8d44913e4894b840794d56a893480377_bkransomware.exe	CTS.exe
PID 3284 wrote to memory of 2192	3284	2024-05-27_8d44913e4894b840794d56a893480377_bkransomware.exe	CTS.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-27_8d44913e4894b840794d56a893480377_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-27_8d44913e4894b840794d56a893480377_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3284

C:\Users\Admin\AppData\Local\Temp\g8QX7UIl5CLvP5k.exe
C:\Users\Admin\AppData\Local\Temp\g8QX7UIl5CLvP5k.exe
2⤵
- Executes dropped EXE
PID:2872

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:2192

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4456,i,2607710392823067546,4648797561512801463,262144 --variations-seed-version --mojo-platform-channel-handle=1304 /prefetch:8
1⤵
PID:4352

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

Filesize
394KB

MD5
e92a4a6f5886fcf9c9497c6e23544867

SHA1
e2ee9c35879975db393f3ab54b8f1430d3462ebd

SHA256
e5846775d10a5a8609a336b2380bc5a2cf6553b5740bddc1a9252b64ddcc8ebc

SHA512
9a6f038bc09a3ead714845f14a3ab6740b6c78747bdfbdd4da62be7edb13a0cf1ecf4d22f59e2e755e97089b6cdd459027ec48812ca614c168082119af032ffe

Download Submit
C:\Users\Admin\AppData\Local\Temp\g8QX7UIl5CLvP5k.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/2872-12-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads