Malware Analysis Report

2025-01-22 12:56

Sample ID 241227-zs5xcazner
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

Command and Scripting Interpreter: PowerShell

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-12-27 20:59

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 20:59

Reported

2024-12-27 21:02

Platform

win7-20241010-en

Max time kernel

119s

Max time network

120s

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 20:59

Reported

2024-12-27 21:02

Platform

win10v2004-20241007-en

Max time kernel

93s

Max time network

147s

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 4752 wrote to memory of 4844 N/A C:\Users\Admin\AppData\Local\Temp\Flasher.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4752 wrote to memory of 4844 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 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 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 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 101.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 133.130.81.91.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp

Files

memory/4844-0-0x00007FFBE9023000-0x00007FFBE9025000-memory.dmp

memory/4844-6-0x000001FBA2960000-0x000001FBA2982000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_yuypuiwa.hh5.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/4844-11-0x00007FFBE9020000-0x00007FFBE9AE1000-memory.dmp

memory/4844-12-0x00007FFBE9020000-0x00007FFBE9AE1000-memory.dmp

memory/4844-16-0x00007FFBE9020000-0x00007FFBE9AE1000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\qip surf_default_login_data

MD5 349e6eb110e34a08924d92f6b334801d
SHA1 bdfb289daff51890cc71697b6322aa4b35ec9169
SHA256 c9fd7be4579e4aa942e8c2b44ab10115fa6c2fe6afd0c584865413d9d53f3b2a
SHA512 2a635b815a5e117ea181ee79305ee1baf591459427acc5210d8c6c7e447be3513ead871c605eb3d32e4ab4111b2a335f26520d0ef8c1245a4af44e1faec44574

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

MD5 a182561a527f929489bf4b8f74f65cd7
SHA1 8cd6866594759711ea1836e86a5b7ca64ee8911f
SHA256 42aad7886965428a941508b776a666a4450eb658cb90e80fae1e7457fc71f914
SHA512 9bc3bf5a82f6f057e873adebd5b7a4c64adef966537ab9c565fe7c4bb3582e2e485ff993d5ab8a6002363231958fabd0933b48811371b8c155eaa74592b66558

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

MD5 9a3be5cb8635e4df5189c9aaa9c1b3c0
SHA1 9a7ce80c8b4362b7c10294bb1551a6172e656f47
SHA256 958f70959a70caf02c0063fe80f12c4d4d3f822a9fd640a6685c345d98708c26
SHA512 5c538513eba7ebaf7028b924d992b4c32ca323ad44f7a31e21970ed6852ea8b54cf71b2f811e8bf97f2744ee151e001ea52ba43b61cd032cc5a4c886292aac65

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

MD5 30d733630e41857f2b826af9ab9a7ffd
SHA1 7d36f62a4e3b5354bcb2b69380038d34ea5d4c60
SHA256 5296f3a0b539c2e54697113ba8f74c2982cbcd66e61550ce1931a6f88dd2b62a
SHA512 25a1ec0cdf9f8ba80631bd527f865afd8e86327c7bf454fe77fd05c353ade237661263f8d5e15a518e09e02cf4ba3337cacaf3e6369df44f73555f79ecaeced8

C:\Users\Admin\AppData\Local\Temp\S5vPntY8GgTI3UeWFODYoMwBTECWOX\sensfiles.zip

MD5 3a37c0f6dd9a33ec3195ea9ea8cb0247
SHA1 90cee4d4f3ad302bb419872ad96fc98463e6c8ce
SHA256 921fb5434f5af93b6f176c83e24ca873a6e92aa61d13fdc2a55e35693e83932a
SHA512 fd6607562afe21480c38422b28e4c15f8f639202ef06309b1aca29552cdd7aef42d4b1fb0927d223bbdbec40ff0d04d894557985f58e0d52241df016bf334aec