Malware Analysis Report

2025-01-18 09:30

Sample ID 240202-q1tplshfhq
Target quisisana-ag.zip
SHA256 cf5f5b0a1d18d969ed91d3c5b3c43b043da5f753ac7e6d584cea2805be6fc283
Tags
strela 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

cf5f5b0a1d18d969ed91d3c5b3c43b043da5f753ac7e6d584cea2805be6fc283

Threat Level: Known bad

The file quisisana-ag.zip was found to be: Known bad.

Malicious Activity Summary

strela stealer

Strela

Loads dropped DLL

Checks computer location settings

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-02-02 13:44

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-02-02 13:44

Reported

2024-02-02 13:46

Platform

win7-20231215-en

Max time kernel

119s

Max time network

124s

Command Line

wscript.exe C:\Users\Admin\AppData\Local\Temp\24946_15193478413494.js

Signatures

Strela

stealer strela

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Windows\system32\rundll32.exe N/A
N/A N/A C:\Windows\system32\rundll32.exe N/A
N/A N/A C:\Windows\system32\rundll32.exe N/A
N/A N/A C:\Windows\system32\rundll32.exe N/A

Enumerates physical storage devices

Processes

C:\Windows\system32\wscript.exe

wscript.exe C:\Users\Admin\AppData\Local\Temp\24946_15193478413494.js

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /k copy "C:\Users\Admin\AppData\Local\Temp\24946_15193478413494.js" "C:\Users\Admin\\vaguetongue.bat" && "C:\Users\Admin\\vaguetongue.bat"

C:\Windows\system32\findstr.exe

findstr /V agreetrick ""C:\Users\Admin\\vaguetongue.bat""

C:\Windows\system32\certutil.exe

certutil -f -decode insidiouswall ladybugwork.dll

C:\Windows\system32\rundll32.exe

rundll32 ladybugwork.dll,main

Network

N/A

Files

C:\Users\Admin\vaguetongue.bat

MD5 c587f03e38a7ca5ac023ef8745264eb4
SHA1 a01598d9c8812f2609f0a868c8e44a81ad3c0685
SHA256 1bf9722c0d8d00609a12614e512f662ea693a8d22a8854ccfcb2de8ca858d16a
SHA512 e6ee7687dddc0e23717c42ba2bf0b46cc19dcf3ff557c5be3e06fbea3e82520f5fa39afa315ff78408d812308ae04ed10a9e3cfa837a4ac5e11d9c4989f4d816

C:\Users\Admin\insidiouswall

MD5 faef51ea997d7cd9d5e06163ac7e688d
SHA1 4d363cd37ae00a68c360a4007cafc7a9b1b39916
SHA256 75e258a9a0b150d98276059a3083c32fb76ab8b6ccd8867a711d2efff1dad569
SHA512 1ee6d5e2bd041cd40dd51dabb923c1038caea987c335ed0096a44bfa352a2df11d305ec65c725a0776068ccd4df1ad88d197253d0902f2a69a28d58c0444b0f7

C:\Users\Admin\ladybugwork.dll

MD5 37da6d71a857781e6af959bf651b886c
SHA1 4947e02ade3269501720410aa0710f6bae388cca
SHA256 59574b349e6554efb11b0ce11711cf0bf399311319f7a8ab17d23011f2715f72
SHA512 783ae2f77abc6056aca179594ea5165977201378a18a4e871af1415ca9edc9174415130a7aff208785852ec21a5f12caea75910fd3d9f4463a9eac3ffb9ed8f6

memory/2992-2008-0x000007FEF5CE0000-0x000007FEF5E52000-memory.dmp

memory/2992-2009-0x0000000001D20000-0x0000000001D43000-memory.dmp

memory/2992-2010-0x0000000001D20000-0x0000000001D43000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-02-02 13:44

Reported

2024-02-02 13:47

Platform

win10v2004-20231215-en

Max time kernel

129s

Max time network

171s

Command Line

wscript.exe C:\Users\Admin\AppData\Local\Temp\24946_15193478413494.js

Signatures

Strela

stealer strela

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Control Panel\International\Geo\Nation C:\Windows\system32\wscript.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Windows\system32\rundll32.exe N/A

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3320 wrote to memory of 380 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\cmd.exe
PID 3320 wrote to memory of 380 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\cmd.exe
PID 380 wrote to memory of 1624 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\findstr.exe
PID 380 wrote to memory of 1624 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\findstr.exe
PID 380 wrote to memory of 4456 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\certutil.exe
PID 380 wrote to memory of 4456 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\certutil.exe
PID 380 wrote to memory of 4180 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\rundll32.exe
PID 380 wrote to memory of 4180 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\rundll32.exe

Processes

C:\Windows\system32\wscript.exe

wscript.exe C:\Users\Admin\AppData\Local\Temp\24946_15193478413494.js

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /k copy "C:\Users\Admin\AppData\Local\Temp\24946_15193478413494.js" "C:\Users\Admin\\vaguetongue.bat" && "C:\Users\Admin\\vaguetongue.bat"

C:\Windows\system32\findstr.exe

findstr /V agreetrick ""C:\Users\Admin\\vaguetongue.bat""

C:\Windows\system32\certutil.exe

certutil -f -decode insidiouswall ladybugwork.dll

C:\Windows\system32\rundll32.exe

rundll32 ladybugwork.dll,main

Network

Country Destination Domain Proto
US 138.91.171.81:80 tcp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 235.66.18.2.in-addr.arpa udp
US 8.8.8.8:53 90.65.42.20.in-addr.arpa udp

Files

C:\Users\Admin\vaguetongue.bat

MD5 c587f03e38a7ca5ac023ef8745264eb4
SHA1 a01598d9c8812f2609f0a868c8e44a81ad3c0685
SHA256 1bf9722c0d8d00609a12614e512f662ea693a8d22a8854ccfcb2de8ca858d16a
SHA512 e6ee7687dddc0e23717c42ba2bf0b46cc19dcf3ff557c5be3e06fbea3e82520f5fa39afa315ff78408d812308ae04ed10a9e3cfa837a4ac5e11d9c4989f4d816

C:\Users\Admin\insidiouswall

MD5 faef51ea997d7cd9d5e06163ac7e688d
SHA1 4d363cd37ae00a68c360a4007cafc7a9b1b39916
SHA256 75e258a9a0b150d98276059a3083c32fb76ab8b6ccd8867a711d2efff1dad569
SHA512 1ee6d5e2bd041cd40dd51dabb923c1038caea987c335ed0096a44bfa352a2df11d305ec65c725a0776068ccd4df1ad88d197253d0902f2a69a28d58c0444b0f7

C:\Users\Admin\ladybugwork.dll

MD5 37da6d71a857781e6af959bf651b886c
SHA1 4947e02ade3269501720410aa0710f6bae388cca
SHA256 59574b349e6554efb11b0ce11711cf0bf399311319f7a8ab17d23011f2715f72
SHA512 783ae2f77abc6056aca179594ea5165977201378a18a4e871af1415ca9edc9174415130a7aff208785852ec21a5f12caea75910fd3d9f4463a9eac3ffb9ed8f6

memory/4180-2006-0x0000020BCCCB0000-0x0000020BCCCD3000-memory.dmp

memory/4180-2007-0x00007FFAD91B0000-0x00007FFAD9322000-memory.dmp

memory/4180-2008-0x0000020BCCCB0000-0x0000020BCCCD3000-memory.dmp