Resubmissions

18-09-2021 19:15

210918-xyqcqsceaq 10

18-09-2021 12:04

210918-n8sq6scaeq 10

General

  • Target

    a4806a7fffe5d04d7ccd764890bd4ef3.exe

  • Size

    6.7MB

  • Sample

    210918-xyqcqsceaq

  • MD5

    a4806a7fffe5d04d7ccd764890bd4ef3

  • SHA1

    5e16eaa0a86f73f0a389f570555dbd10bf48c135

  • SHA256

    5248d778a816ffaed27e465deec140f4d79478a4aca7c5968d6eb926ac7c94f1

  • SHA512

    5af0704f4f2396ad9cc1d82076eae14b7da8994bb538a85bcb0bd0de31ffb10a694d901c90a1b242732030129af3ef4feef7b79e1e72865cb5e634b371be9d71

Malware Config

Extracted

Family

vidar

Version

40.6

Botnet

706

C2

https://dimonbk83.tumblr.com/

Attributes
  • profile_id

    706

Extracted

Family

smokeloader

Version

2020

C2

http://varmisende.com/upload/

http://fernandomayol.com/upload/

http://nextlytm.com/upload/

http://people4jan.com/upload/

http://asfaltwerk.com/upload/

http://venerynnet1.top/

http://kevonahira2.top/

http://vegangelist3.top/

http://kingriffaele4.top/

http://arakeishant5.top/

rc4.i32
rc4.i32
rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

ANI

C2

45.142.215.47:27643

Extracted

Family

vidar

Version

40.7

Botnet

937

C2

https://petrenko96.tumblr.com/

Attributes
  • profile_id

    937

Extracted

Family

metasploit

Version

windows/single_exec

Extracted

Family

icedid

Campaign

3162718704

Extracted

Family

redline

Botnet

matthew14

C2

193.188.21.209:41939

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://shellloader.com/welcome

Targets

    • Target

      a4806a7fffe5d04d7ccd764890bd4ef3.exe

    • Size

      6.7MB

    • MD5

      a4806a7fffe5d04d7ccd764890bd4ef3

    • SHA1

      5e16eaa0a86f73f0a389f570555dbd10bf48c135

    • SHA256

      5248d778a816ffaed27e465deec140f4d79478a4aca7c5968d6eb926ac7c94f1

    • SHA512

      5af0704f4f2396ad9cc1d82076eae14b7da8994bb538a85bcb0bd0de31ffb10a694d901c90a1b242732030129af3ef4feef7b79e1e72865cb5e634b371be9d71

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Glupteba

      Glupteba is a modular loader written in Golang with various components.

    • Glupteba Payload

    • IcedID, BokBot

      IcedID is a banking trojan capable of stealing credentials.

    • MetaSploit

      Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

    • Modifies Windows Defender Real-time Protection settings

    • Modifies security service

    • Modifies system executable filetype association

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • Raccoon

      Simple but powerful infostealer which was very active in 2019.

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine Payload

    • Registers COM server for autorun

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Socelars

      Socelars is an infostealer targeting browser cookies and credit card credentials.

    • Socelars Payload

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • suricata: ET MALWARE APT DarkHydrus DNS Lookup 18

      suricata: ET MALWARE APT DarkHydrus DNS Lookup 18

    • suricata: ET MALWARE Amadey CnC Check-In

      suricata: ET MALWARE Amadey CnC Check-In

    • suricata: ET MALWARE DNS Query Sinkhole Domain Various Families (Possible Infected Host)

      suricata: ET MALWARE DNS Query Sinkhole Domain Various Families (Possible Infected Host)

    • suricata: ET MALWARE JS/Nemucod requesting EXE payload 2016-02-01

      suricata: ET MALWARE JS/Nemucod requesting EXE payload 2016-02-01

    • suricata: ET MALWARE JS/Nemucod.M.gen downloading EXE payload

      suricata: ET MALWARE JS/Nemucod.M.gen downloading EXE payload

    • suricata: ET MALWARE Observed Win32/Ymacco.AA36 User-Agent

      suricata: ET MALWARE Observed Win32/Ymacco.AA36 User-Agent

    • suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

      suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

    • suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)

      suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)

    • suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

      suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

    • suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

      suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

    • suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

      suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

    • suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

      suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

    • suricata: ET MALWARE Win32/Adware.Agent.NSU CnC Activity M2

      suricata: ET MALWARE Win32/Adware.Agent.NSU CnC Activity M2

    • suricata: ET MALWARE Win32/IcedID Request Cookie

      suricata: ET MALWARE Win32/IcedID Request Cookie

    • suricata: ET MALWARE Win32/Tnega Activity (GET)

      suricata: ET MALWARE Win32/Tnega Activity (GET)

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • Checks for common network interception software

      Looks in the registry for tools like Wireshark or Fiddler commonly used to analyze network activity.

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Vidar Stealer

    • XMRig Miner Payload

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

    • Blocklisted process makes network request

    • Creates new service(s)

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Modifies Windows Firewall

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

    • VMProtect packed file

      Detects executables packed with VMProtect commercial packer.

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops startup file

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Accesses 2FA software files, possible credential harvesting

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Checks whether UAC is enabled

    • Drops desktop.ini file(s)

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Modify Existing Service

3
T1031

Change Default File Association

1
T1042

Registry Run Keys / Startup Folder

2
T1060

New Service

1
T1050

Hidden Files and Directories

2
T1158

Scheduled Task

1
T1053

Privilege Escalation

New Service

1
T1050

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

6
T1112

Disabling Security Tools

1
T1089

Virtualization/Sandbox Evasion

1
T1497

Hidden Files and Directories

2
T1158

File Permissions Modification

1
T1222

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

4
T1081

Discovery

Software Discovery

1
T1518

Query Registry

9
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

9
T1082

Peripheral Device Discovery

3
T1120

Collection

Data from Local System

4
T1005

Command and Control

Web Service

1
T1102

Tasks

static1

Score
N/A

behavioral1

redlinesmokeloadersocelarsvidar706aniaspackv2backdoordiscoveryevasioninfostealerpersistencespywarestealersuricatatrojanvmprotect
Score
10/10

behavioral2

djvuraccoonredlinesmokeloadersocelarsvidarxmrig706aspackv2backdoordiscoveryinfostealerminerransomwarestealersuricatatrojanvmprotect
Score
10/10

behavioral3

djvugluptebaicedidmetasploitredlinesmokeloadersocelarstofseevidar706937ani3162718704aspackv2backdoorbankerdiscoverydropperevasioninfostealerloaderpersistenceransomwarespywarestealersuricatatrojanvmprotect
Score
10/10

behavioral4

redlinesmokeloadersocelarsvidaranimatthew14aspackv2backdoordiscoveryevasioninfostealerpersistencespywarestealersuricatatrojanvmprotect
Score
10/10

behavioral5

icedidredlinesmokeloadersocelarstofseevidar706animatthew143162718704aspackv2backdoorbankerdiscoveryevasioninfostealerpersistencespywarestealersuricatathemidatrojanvmprotect
Score
10/10

behavioral6

redlinesmokeloadersocelarstofseevidar706aniaspackv2backdoordiscoveryevasioninfostealerpersistencespywarestealersuricatatrojanvmprotect
Score
10/10

behavioral7

icedidredlinesmokeloadersocelarstofseevidar706animatthew143162718704aspackv2backdoorbankerdiscoveryevasioninfostealerpersistencespywarestealersuricatatrojanvmprotect
Score
10/10

behavioral8

icedidredlinesmokeloadersocelarsvidar706animatthew143162718704aspackv2backdoorbankerdiscoveryevasioninfostealerpersistencespywarestealersuricatatrojanvmprotect
Score
10/10

behavioral9

gluptebaicedidmetasploitredlinesmokeloadersocelarstofseevidar706ani3162718704aspackv2backdoorbankerdiscoverydropperevasioninfostealerloaderpersistencespywarestealersuricatatrojanvmprotect
Score
10/10