General
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Target
krunker.iohacks.cc
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Size
30.9MB
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Sample
240416-r1ca1ace39
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MD5
2850f1cb75953d9e0232344f6a13bf48
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SHA1
141ab8929fbe01031ab1e559d880440ae931cc16
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SHA256
892f11af94dea87bc8a85acdb092c74541b0ab63c8fcc1823ba7987c82c6e9ba
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SHA512
25551eb0fbca013bcebd514eb72185e157a07f116a6973bfe4b728febcefc7044a816c5c70048c3fda2eeb4ce53b52bd7b19ef1ef851a0f4fc90451e60540d6d
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SSDEEP
786432:j8Zic+QKJObt2u8xQYcLpoTEjoAsM0D0EHShV/:j8YQzB8xQzLp+nAV0BK
Malware Config
Extracted
C:\Users\Admin\Documents\@Please_Read_Me@.txt
wannacry
13AM4VW2dhxYgXeQepoHkHSQuy6NgaEb94
Extracted
F:\$RECYCLE.BIN\DECRYPT-FILES.txt
maze
http://aoacugmutagkwctu.onion/6d0f0cd229ffe4e
https://mazedecrypt.top/6d0f0cd229ffe4e
Extracted
Protocol: ftp- Host:
files.000webhost.com - Port:
21 - Username:
fcb-aws-host-4
Extracted
C:\Users\Admin\AppData\Local\Temp\RarSFX0\@Please_Read_Me@.txt
wannacry
12t9YDPgwueZ9NyMgw519p7AA8isjr6SMw
Extracted
C:\PerfLogs\DECRYPT-FILES.txt
maze
http://aoacugmutagkwctu.onion/6c490cc532514173
https://mazedecrypt.top/6c490cc532514173
Extracted
C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\_R_E_A_D___T_H_I_S___989MCED_.txt
cerber
http://xpcx6erilkjced3j.onion/26B3-8D93-8FD6-0098-B030
http://xpcx6erilkjced3j.1n5mod.top/26B3-8D93-8FD6-0098-B030
http://xpcx6erilkjced3j.19kdeh.top/26B3-8D93-8FD6-0098-B030
http://xpcx6erilkjced3j.1mpsnr.top/26B3-8D93-8FD6-0098-B030
http://xpcx6erilkjced3j.18ey8e.top/26B3-8D93-8FD6-0098-B030
http://xpcx6erilkjced3j.17gcun.top/26B3-8D93-8FD6-0098-B030
Targets
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Target
krunker.iohacks.cc
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Size
30.9MB
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MD5
2850f1cb75953d9e0232344f6a13bf48
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SHA1
141ab8929fbe01031ab1e559d880440ae931cc16
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SHA256
892f11af94dea87bc8a85acdb092c74541b0ab63c8fcc1823ba7987c82c6e9ba
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SHA512
25551eb0fbca013bcebd514eb72185e157a07f116a6973bfe4b728febcefc7044a816c5c70048c3fda2eeb4ce53b52bd7b19ef1ef851a0f4fc90451e60540d6d
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SSDEEP
786432:j8Zic+QKJObt2u8xQYcLpoTEjoAsM0D0EHShV/:j8YQzB8xQzLp+nAV0BK
Score10/10-
AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
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Cerber
Cerber is a widely used ransomware-as-a-service (RaaS), first seen in 2017.
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DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
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Detect Neshta payload
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Detect ZGRat V1
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HawkEye
HawkEye is a malware kit that has seen continuous development since at least 2013.
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Maze
Ransomware family also known as ChaCha.
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Neshta
Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.
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Process spawned unexpected child process
This typically indicates the parent process was compromised via an exploit or macro.
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Quasar RAT
Quasar is an open source Remote Access Tool.
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Quasar payload
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Ramnit
Ramnit is a versatile family that holds viruses, worms, and Trojans.
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RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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RedLine payload
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Troldesh, Shade, Encoder.858
Troldesh is a ransomware spread by malspam.
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UAC bypass
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Wannacry
WannaCry is a ransomware cryptoworm.
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Windows security bypass
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ZGRat
ZGRat is remote access trojan written in C#.
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Async RAT payload
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DCRat payload
Detects payload of DCRat, commonly dropped by NSIS installers.
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Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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NirSoft MailPassView
Password recovery tool for various email clients
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Nirsoft
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Blocklisted process makes network request
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Contacts a large (1106) amount of remote hosts
This may indicate a network scan to discover remotely running services.
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Downloads MZ/PE file
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Modifies Windows Firewall
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Office macro that triggers on suspicious action
Office document macro which triggers in special circumstances - often malicious.
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Stops running service(s)
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Drops startup file
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Executes dropped EXE
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Identifies Wine through registry keys
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
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Loads dropped DLL
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Modifies file permissions
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Modifies system executable filetype association
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Reads WinSCP keys stored on the system
Tries to access WinSCP stored sessions.
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Reads data files stored by FTP clients
Tries to access configuration files associated with programs like FileZilla.
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Reads local data of messenger clients
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
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Reads user/profile data of local email clients
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers
Infostealers often target stored browser data, which can include saved credentials etc.
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UPX packed file
Detects executables packed with UPX/modified UPX open source packer.
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Uses the VBS compiler for execution
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Windows security modification
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Accesses Microsoft Outlook accounts
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Accesses Microsoft Outlook profiles
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Accesses cryptocurrency files/wallets, possible credential harvesting
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Adds Run key to start application
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Checks whether UAC is enabled
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Legitimate hosting services abused for malware hosting/C2
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Checks system information in the registry
System information is often read in order to detect sandboxing environments.
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Drops autorun.inf file
Malware can abuse Windows Autorun to spread further via attached volumes.
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Drops file in System32 directory
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Sets desktop wallpaper using registry
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Suspicious use of NtSetInformationThreadHideFromDebugger
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Suspicious use of SetThreadContext
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MITRE ATT&CK Matrix ATT&CK v13
Persistence
Create or Modify System Process
2Windows Service
2Event Triggered Execution
1Change Default File Association
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Create or Modify System Process
2Windows Service
2Event Triggered Execution
1Change Default File Association
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
5Disable or Modify Tools
3Disable or Modify System Firewall
1Modify Registry
9Indicator Removal
2File Deletion
2Virtualization/Sandbox Evasion
2File and Directory Permissions Modification
1Scripting
1Subvert Trust Controls
1Install Root Certificate
1Hide Artifacts
1Hidden Files and Directories
1Credential Access
Unsecured Credentials
6Credentials In Files
5Credentials in Registry
1