Malware Analysis Report

2025-01-22 12:57

Sample ID 241227-zkvreazmdj
Target Flasher.exe
SHA256 989af492fa898868e67636bf47e06a7c5864f31849fc3b3a07b07e7a3a62d944
Tags
lucastealer credential_access execution spyware stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

989af492fa898868e67636bf47e06a7c5864f31849fc3b3a07b07e7a3a62d944

Threat Level: Known bad

The file Flasher.exe was found to be: Known bad.

Malicious Activity Summary

lucastealer credential_access execution spyware stealer

Luca Stealer payload

Lucastealer family

Reads user/profile data of web browsers

Unsecured Credentials: Credentials In Files

Accesses cryptocurrency files/wallets, possible credential harvesting

Unsigned PE

Command and Scripting Interpreter: PowerShell

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-12-27 20:47

Signatures

Luca Stealer payload

Description Indicator Process Target
N/A N/A N/A N/A

Lucastealer family

lucastealer

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-12-27 20:47

Reported

2024-12-27 20:49

Platform

win7-20240903-en

Max time kernel

117s

Max time network

117s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Flasher.exe"

Signatures

N/A

Processes

C:\Users\Admin\AppData\Local\Temp\Flasher.exe

"C:\Users\Admin\AppData\Local\Temp\Flasher.exe"

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-12-27 20:47

Reported

2024-12-27 20:49

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Flasher.exe"

Signatures

Reads user/profile data of web browsers

spyware stealer

Unsecured Credentials: Credentials In Files

credential_access stealer

Accesses cryptocurrency files/wallets, possible credential harvesting

spyware

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 5104 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\Flasher.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 5104 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\Flasher.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

Processes

C:\Users\Admin\AppData\Local\Temp\Flasher.exe

"C:\Users\Admin\AppData\Local\Temp\Flasher.exe"

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

"powershell.exe" -NoProfile -NonInteractive -NoLogo -Command "Get-Culture | Select -ExpandProperty DisplayName"

Network

Country Destination Domain Proto
US 8.8.8.8:53 ipwho.is udp
DE 195.201.57.90:443 ipwho.is tcp
US 8.8.8.8:53 90.57.201.195.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 api.telegram.org udp
NL 149.154.167.220:443 api.telegram.org tcp
US 8.8.8.8:53 220.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 107.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp

Files

memory/2892-0-0x00007FF8FC723000-0x00007FF8FC725000-memory.dmp

memory/2892-10-0x000001277FB40000-0x000001277FB62000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zt0oqjij.0vh.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/2892-11-0x00007FF8FC720000-0x00007FF8FD1E1000-memory.dmp

memory/2892-12-0x00007FF8FC720000-0x00007FF8FD1E1000-memory.dmp

memory/2892-16-0x00007FF8FC720000-0x00007FF8FD1E1000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\elements browser_network_cookies

MD5 ac4e41f2d6dcef4d9a78e21842fd5c98
SHA1 17da11f1d54ecacc839e8da181fd26fa88b24955
SHA256 a6f90ae750166f2f9a29e0ab565a528f580f8449502377dd94715a1a2a312e25
SHA512 a6be85df6c267e3a1ac98f23023f96a8d1d3ba99a6a07cd30679ee5e24cc9c1faf68971e71f1bddf87f5bf1b19d16790ecba534ad0bdd6a608f5b672f24d5b03

C:\Users\Admin\AppData\Local\Temp\mail.ru_default_login_data

MD5 349e6eb110e34a08924d92f6b334801d
SHA1 bdfb289daff51890cc71697b6322aa4b35ec9169
SHA256 c9fd7be4579e4aa942e8c2b44ab10115fa6c2fe6afd0c584865413d9d53f3b2a
SHA512 2a635b815a5e117ea181ee79305ee1baf591459427acc5210d8c6c7e447be3513ead871c605eb3d32e4ab4111b2a335f26520d0ef8c1245a4af44e1faec44574

C:\Users\Admin\AppData\Local\Temp\elements browser_default_webdata

MD5 ab87d892a202f83f7e925c5e294069e8
SHA1 0b86361ff41417a38ce3f5b5250bb6ecd166a6a1
SHA256 bdc61a1c60fe8c08fe7a5256e9c8d7ad1ba4dd0963a54357c484256fc8834130
SHA512 f9a03eaae52d7fb544047fea3ffa7d8c6f7debdbb907348adfc46545e7b6c3783427983f16885ae138e43e51eec6ce73520c38581e4d9bb7140beeae2137de41

C:\Users\Admin\AppData\Local\Temp\elements browser_default_login_data

MD5 a182561a527f929489bf4b8f74f65cd7
SHA1 8cd6866594759711ea1836e86a5b7ca64ee8911f
SHA256 42aad7886965428a941508b776a666a4450eb658cb90e80fae1e7457fc71f914
SHA512 9bc3bf5a82f6f057e873adebd5b7a4c64adef966537ab9c565fe7c4bb3582e2e485ff993d5ab8a6002363231958fabd0933b48811371b8c155eaa74592b66558

C:\Users\Admin\AppData\Local\Temp\zY0eoNbWpMutHYFfJJ8uiTJG2VvjwM\sensfiles.zip

MD5 a9b4f0dfe471e36daedeaeaa3a819b63
SHA1 93cf68d4344efb4e44d13f4871c670e9e0c15c4d
SHA256 507279e1816c4e988cfcc3ab9a3de374a2f7c363e801a5e0ee3d6796004377d0
SHA512 f8194ea1ea03bc2b6b7c4cb34ff4ee2dfdf3ae43933a9d09d6e957af13e0a28b95979370348c5df8fd37ab4e46bbe65e52c963744ee4ce18cf9bd4b419d9e45f