38e5fd8f4bb3ed7d8ff33f91d9c467670083b5f03c12293f2c5f46a04d0127e2

General

Target

3daf9e6ae81363247c5f955329c41d5b.exe
Size

41KB
MD5

3daf9e6ae81363247c5f955329c41d5b
SHA1

7d0d61155a59d3122f191eba20eeff836424523d
SHA256

38e5fd8f4bb3ed7d8ff33f91d9c467670083b5f03c12293f2c5f46a04d0127e2
SHA512

1751a07f32581c85c5bcefa61198a41cb8d9138282403ab87606b936efe27430038a0f2039d7b3f2a41e4eb9ab9f113e9d3c0e679e0dae225cb60b3b11381556
SSDEEP

768:4QGiv2CKlMTFlhJDIVwqXlyOraLmMhJ3iR5Np9KtwkS7Cm94COfsziPg:3VvlKlCFWVnXlyOGD3i/L9OpS79vYsz9

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1260	Stell.exe

Loads dropped DLL 1 IoCs

pid	Process
2120	3daf9e6ae81363247c5f955329c41d5b.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	Stell.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	Stell.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	Stell.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
2848	NOTEPAD.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1260	Stell.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2120 wrote to memory of 1260	2120	3daf9e6ae81363247c5f955329c41d5b.exe	27
PID 2120 wrote to memory of 1260	2120	3daf9e6ae81363247c5f955329c41d5b.exe	27
PID 2120 wrote to memory of 1260	2120	3daf9e6ae81363247c5f955329c41d5b.exe	27
PID 2120 wrote to memory of 1260	2120	3daf9e6ae81363247c5f955329c41d5b.exe	27
PID 2120 wrote to memory of 2848	2120	3daf9e6ae81363247c5f955329c41d5b.exe	28
PID 2120 wrote to memory of 2848	2120	3daf9e6ae81363247c5f955329c41d5b.exe	28
PID 2120 wrote to memory of 2848	2120	3daf9e6ae81363247c5f955329c41d5b.exe	28
PID 2120 wrote to memory of 2848	2120	3daf9e6ae81363247c5f955329c41d5b.exe	28

C:\Users\Admin\AppData\Local\Temp\3daf9e6ae81363247c5f955329c41d5b.exe
"C:\Users\Admin\AppData\Local\Temp\3daf9e6ae81363247c5f955329c41d5b.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2120
- C:\Users\Admin\AppData\Local\Temp\Stell.exe
  "C:\Users\Admin\AppData\Local\Temp\Stell.exe"
  2⤵
  - Executes dropped EXE
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:1260
- C:\Windows\SysWOW64\NOTEPAD.EXE
  "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\prohy.txt
  2⤵
  - Opens file in notepad (likely ransom note)
  PID:2848

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

3

T1552

Credentials In Files

3

T1552.001

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\prohy.txt

Filesize
18KB

MD5
9b184272fa8eecb5c99fc1805ac7529e

SHA1
f9a21718765f6f842049513a8779dc738917f8af

SHA256
796db843fcb613b8a6307307ad3456e451de984cd64c14f038eb0552a3342cc1

SHA512
77fb8972d85dfd8d96793086f6405426834901853cd0d934f890b3e9473c30d2057fdfa94703e289b35ef83097081b73308676ae419fd517aacac2c36fee53c5

Download Submit
C:\Users\Admin\AppData\Local\Temp\ufr_reports\NO_PWDS_report_01-01-2024_19-30-51-63686EB9-IJCD.bin

Filesize
1KB

MD5
bde7ff0702e575892d97d0335cb71f1b

SHA1
4a527daf49c17c14e1fc3149e4e2a993e6ca3f8d

SHA256
71801d0a9c855653580b08d6cdb9a05f15c51a330c63abeff01ff3929153c5a7

SHA512
e1ecc405e6e119d1fa03a636310df4fd9c53c78b1487871e41abf122d85bfccce8420d21c9fa3b3e750355d409afb7be9e87931f73393db8cf65010063f646f6

Download Submit
\Users\Admin\AppData\Local\Temp\Stell.exe

Filesize
22KB

MD5
ae0f7196eb6ca11f59fdf63c6bcfd488

SHA1
8308a06843f003d65ad608767f0278e8b4019d41

SHA256
01255c3a07b62f23832c1635d1f6e822d7b85ba34f32fbaa0e0c90c06b25fd12

SHA512
c27f8ec49eb252097394164e6469e96030c87f4d41a3233f19704d85ac60253cbdbd3e2ae4afd317de76d30163f9f65503d65c0adb431c540397961d54dc3e05

Download Submit
memory/1260-10-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1260-16-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1260-23-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2120-9-0x0000000002510000-0x0000000002565000-memory.dmp

Filesize
340KB

Download

Analysis

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