Malware Analysis Report

2025-01-23 07:34

Sample ID 241104-razcvaznbx
Target 521edd96b5cefb70c7e6e2b6294c895d6f0b2c992bb2e7e5342f3bc7f3539400
SHA256 521edd96b5cefb70c7e6e2b6294c895d6f0b2c992bb2e7e5342f3bc7f3539400
Tags
healer redline rosto discovery dropper evasion infostealer persistence trojan
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 Overview

score
10/10

SHA256

521edd96b5cefb70c7e6e2b6294c895d6f0b2c992bb2e7e5342f3bc7f3539400

Threat Level: Known bad

The file 521edd96b5cefb70c7e6e2b6294c895d6f0b2c992bb2e7e5342f3bc7f3539400 was found to be: Known bad.

Malicious Activity Summary

healer redline rosto discovery dropper evasion infostealer persistence trojan

Redline family

RedLine payload

Healer

Detects Healer an antivirus disabler dropper

Healer family

Modifies Windows Defender Real-time Protection settings

RedLine

Windows security modification

Executes dropped EXE

Adds Run key to start application

Unsigned PE

Program crash

System Location Discovery: System Language Discovery

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-04 14:00

Signatures

Unsigned PE

Description Indicator Process Target
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Analysis: behavioral1

Detonation Overview

Submitted

2024-11-04 14:00

Reported

2024-11-04 14:02

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\521edd96b5cefb70c7e6e2b6294c895d6f0b2c992bb2e7e5342f3bc7f3539400.exe"

Signatures

Detects Healer an antivirus disabler dropper

Description Indicator Process Target
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Healer

dropper healer

Healer family

healer

Modifies Windows Defender Real-time Protection settings

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1" C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\uryC90mD70.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\uryC90mD70.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1" C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\uryC90mD70.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\uryC90mD70.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1" C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\uryC90mD70.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1" C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\uryC90mD70.exe N/A

RedLine

infostealer redline

RedLine payload

Description Indicator Process Target
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Redline family

redline

Windows security modification

evasion trojan
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\uryC90mD70.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0" C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\uryC90mD70.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup1 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP001.TMP\\\"" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ycTo37ex59.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" C:\Users\Admin\AppData\Local\Temp\521edd96b5cefb70c7e6e2b6294c895d6f0b2c992bb2e7e5342f3bc7f3539400.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\wrqM82LQ23.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\521edd96b5cefb70c7e6e2b6294c895d6f0b2c992bb2e7e5342f3bc7f3539400.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ycTo37ex59.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\uryC90mD70.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\uryC90mD70.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\uryC90mD70.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\uryC90mD70.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\wrqM82LQ23.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4120 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\521edd96b5cefb70c7e6e2b6294c895d6f0b2c992bb2e7e5342f3bc7f3539400.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ycTo37ex59.exe
PID 4120 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\521edd96b5cefb70c7e6e2b6294c895d6f0b2c992bb2e7e5342f3bc7f3539400.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ycTo37ex59.exe
PID 4120 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\521edd96b5cefb70c7e6e2b6294c895d6f0b2c992bb2e7e5342f3bc7f3539400.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ycTo37ex59.exe
PID 2688 wrote to memory of 60 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ycTo37ex59.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\uryC90mD70.exe
PID 2688 wrote to memory of 60 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ycTo37ex59.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\uryC90mD70.exe
PID 2688 wrote to memory of 60 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ycTo37ex59.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\uryC90mD70.exe
PID 2688 wrote to memory of 3184 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ycTo37ex59.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\wrqM82LQ23.exe
PID 2688 wrote to memory of 3184 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ycTo37ex59.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\wrqM82LQ23.exe
PID 2688 wrote to memory of 3184 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ycTo37ex59.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\wrqM82LQ23.exe

Processes

C:\Users\Admin\AppData\Local\Temp\521edd96b5cefb70c7e6e2b6294c895d6f0b2c992bb2e7e5342f3bc7f3539400.exe

"C:\Users\Admin\AppData\Local\Temp\521edd96b5cefb70c7e6e2b6294c895d6f0b2c992bb2e7e5342f3bc7f3539400.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ycTo37ex59.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ycTo37ex59.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\uryC90mD70.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\uryC90mD70.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 200 -p 60 -ip 60

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 60 -s 1084

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\wrqM82LQ23.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\wrqM82LQ23.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.28.10:443 g.bing.com tcp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 hueref.eu udp
US 8.8.8.8:53 hueref.eu udp
US 8.8.8.8:53 hueref.eu udp
US 8.8.8.8:53 hueref.eu udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 hueref.eu udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 hueref.eu udp
US 8.8.8.8:53 hueref.eu udp
US 8.8.8.8:53 hueref.eu udp
US 8.8.8.8:53 hueref.eu udp
US 8.8.8.8:53 hueref.eu udp
US 8.8.8.8:53 84.253.4.62.in-addr.arpa udp
US 8.8.8.8:53 hueref.eu udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 hueref.eu udp
US 8.8.8.8:53 hueref.eu udp
US 8.8.8.8:53 hueref.eu udp
US 8.8.8.8:53 hueref.eu udp
US 8.8.8.8:53 hueref.eu udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 hueref.eu udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 hueref.eu udp
US 8.8.8.8:53 hueref.eu udp
US 8.8.8.8:53 hueref.eu udp
US 8.8.8.8:53 hueref.eu udp
US 8.8.8.8:53 hueref.eu udp
US 8.8.8.8:53 hueref.eu udp
US 8.8.8.8:53 hueref.eu udp
US 8.8.8.8:53 hueref.eu udp
US 8.8.8.8:53 hueref.eu udp

Files

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ycTo37ex59.exe

MD5 742274abef3aa2b959c3ef323d1abaff
SHA1 5b4f86a29fdddad53ab05d381a3b5d55a217869b
SHA256 91827d2c3027d833126b4c95fc28d9ed6c64e562e23fd15270e44f057d80830a
SHA512 236f270a2ba0834188e2227cc7cf238683e544aa1023d3d0262f4b4e03517b5d1688406a1f2a69e10764e3cf87b8cd5f0bac5e0880667740276db05e44051886

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\uryC90mD70.exe

MD5 2120c6c2708aefaf06e59fce16a9e5ec
SHA1 e953b0507cac25f46d483dd2a82c2770fbc2c5f4
SHA256 8f9056673376ae658ed532e38040ae0dddf07d8a11aacc7ee92efc7d93f4e18b
SHA512 8d3301488cd24d93bdcb808439d2c84b6e0d7e1a416e8058f812cae16c1d5c1ca40fb628ca3e91fd4020e79c0cff89b1ffe29f53890004f22154a90ffc3f9ebe

memory/60-16-0x00000000005A0000-0x00000000005CD000-memory.dmp

memory/60-15-0x00000000006A0000-0x00000000007A0000-memory.dmp

memory/60-17-0x0000000000400000-0x0000000000430000-memory.dmp

memory/60-18-0x0000000000400000-0x000000000057E000-memory.dmp

memory/60-19-0x00000000024E0000-0x00000000024FA000-memory.dmp

memory/60-20-0x0000000004C20000-0x00000000051C4000-memory.dmp

memory/60-21-0x0000000004B10000-0x0000000004B28000-memory.dmp

memory/60-49-0x0000000004B10000-0x0000000004B22000-memory.dmp

memory/60-47-0x0000000004B10000-0x0000000004B22000-memory.dmp

memory/60-45-0x0000000004B10000-0x0000000004B22000-memory.dmp

memory/60-44-0x0000000004B10000-0x0000000004B22000-memory.dmp

memory/60-41-0x0000000004B10000-0x0000000004B22000-memory.dmp

memory/60-22-0x0000000004B10000-0x0000000004B22000-memory.dmp

memory/60-39-0x0000000004B10000-0x0000000004B22000-memory.dmp

memory/60-37-0x0000000004B10000-0x0000000004B22000-memory.dmp

memory/60-35-0x0000000004B10000-0x0000000004B22000-memory.dmp

memory/60-34-0x0000000004B10000-0x0000000004B22000-memory.dmp

memory/60-31-0x0000000004B10000-0x0000000004B22000-memory.dmp

memory/60-29-0x0000000004B10000-0x0000000004B22000-memory.dmp

memory/60-27-0x0000000004B10000-0x0000000004B22000-memory.dmp

memory/60-25-0x0000000004B10000-0x0000000004B22000-memory.dmp

memory/60-23-0x0000000004B10000-0x0000000004B22000-memory.dmp

memory/60-50-0x00000000006A0000-0x00000000007A0000-memory.dmp

memory/60-51-0x00000000005A0000-0x00000000005CD000-memory.dmp

memory/60-52-0x0000000000400000-0x0000000000430000-memory.dmp

memory/60-55-0x0000000000400000-0x000000000057E000-memory.dmp

memory/60-56-0x0000000000400000-0x0000000000430000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\wrqM82LQ23.exe

MD5 75160aa498b0f13e4f6106ffe98857f3
SHA1 154296294b8700f46187245fdb9a2c4d5aa7da3c
SHA256 57ad72d53871e2d2f5576eca5bbf30e6c86fffef549ab740e9b2f89a81968547
SHA512 8aade9003760df690e83dd35a309c64a67d7f10a37fb3e3138d4373d69a420885883417a1421f3bcdfb78776f5d6d38f83dab13b1f3f824186eae94ee1263813

memory/3184-61-0x0000000002200000-0x0000000002246000-memory.dmp

memory/3184-62-0x00000000051C0000-0x0000000005204000-memory.dmp

memory/3184-64-0x00000000051C0000-0x00000000051FE000-memory.dmp

memory/3184-74-0x00000000051C0000-0x00000000051FE000-memory.dmp

memory/3184-96-0x00000000051C0000-0x00000000051FE000-memory.dmp

memory/3184-95-0x00000000051C0000-0x00000000051FE000-memory.dmp

memory/3184-92-0x00000000051C0000-0x00000000051FE000-memory.dmp

memory/3184-90-0x00000000051C0000-0x00000000051FE000-memory.dmp

memory/3184-88-0x00000000051C0000-0x00000000051FE000-memory.dmp

memory/3184-86-0x00000000051C0000-0x00000000051FE000-memory.dmp

memory/3184-82-0x00000000051C0000-0x00000000051FE000-memory.dmp

memory/3184-80-0x00000000051C0000-0x00000000051FE000-memory.dmp

memory/3184-78-0x00000000051C0000-0x00000000051FE000-memory.dmp

memory/3184-76-0x00000000051C0000-0x00000000051FE000-memory.dmp

memory/3184-72-0x00000000051C0000-0x00000000051FE000-memory.dmp

memory/3184-70-0x00000000051C0000-0x00000000051FE000-memory.dmp

memory/3184-68-0x00000000051C0000-0x00000000051FE000-memory.dmp

memory/3184-66-0x00000000051C0000-0x00000000051FE000-memory.dmp

memory/3184-84-0x00000000051C0000-0x00000000051FE000-memory.dmp

memory/3184-63-0x00000000051C0000-0x00000000051FE000-memory.dmp

memory/3184-969-0x0000000005200000-0x0000000005818000-memory.dmp

memory/3184-970-0x0000000005860000-0x000000000596A000-memory.dmp

memory/3184-971-0x0000000005990000-0x00000000059A2000-memory.dmp

memory/3184-972-0x00000000059B0000-0x00000000059EC000-memory.dmp

memory/3184-973-0x0000000005B00000-0x0000000005B4C000-memory.dmp