Resubmissions

19-09-2021 09:55

210919-lx4m7abhb4 10

19-09-2021 08:44

210919-kncbxabgh5 10

General

  • Target

    setup_x86_x64_install.exe

  • Size

    4.3MB

  • Sample

    210919-lx4m7abhb4

  • MD5

    7b4b44cc869a8b0f51ace918cef015ca

  • SHA1

    7b59d8a253c17d658eddbb32fe139c969aee8962

  • SHA256

    f38f738f52674e3f4689cdb299e82d40a6446ccec24abd4cac244fe64cdc07ed

  • SHA512

    78ed354bec23b5c892a7c104630ae1ebf2dfe3fc8f3ee8156af1e3ab5fa572f829856213fe31772ba9496bdfaf8dd507c0c6d8b488a9bf94bc338c4bff5141b0

Malware Config

Extracted

Family

vidar

Version

40.7

Botnet

706

C2

https://petrenko96.tumblr.com/

Attributes
  • profile_id

    706

Extracted

Family

redline

Botnet

pab123

C2

45.14.49.169:22411

Extracted

Family

redline

Botnet

ANI

C2

45.142.215.47:27643

Extracted

Family

redline

Botnet

matthew14

C2

193.188.21.209:41939

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://shellloader.com/welcome

Extracted

Family

redline

Botnet

189qwe

C2

185.215.113.104:18754

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/

rc4.i32
rc4.i32

Extracted

Family

icedid

Campaign

3162718704

Targets

    • Target

      setup_x86_x64_install.exe

    • Size

      4.3MB

    • MD5

      7b4b44cc869a8b0f51ace918cef015ca

    • SHA1

      7b59d8a253c17d658eddbb32fe139c969aee8962

    • SHA256

      f38f738f52674e3f4689cdb299e82d40a6446ccec24abd4cac244fe64cdc07ed

    • SHA512

      78ed354bec23b5c892a7c104630ae1ebf2dfe3fc8f3ee8156af1e3ab5fa572f829856213fe31772ba9496bdfaf8dd507c0c6d8b488a9bf94bc338c4bff5141b0

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • IcedID, BokBot

      IcedID is a banking trojan capable of stealing credentials.

    • Modifies Windows Defender Real-time Protection settings

    • Modifies system executable filetype association

    • Process spawned unexpected child process

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

    • 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.

    • 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

    • 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

    • 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.

    • 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.

    • 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

2
T1031

Change Default File Association

1
T1042

Registry Run Keys / Startup Folder

2
T1060

New Service

1
T1050

Scheduled Task

1
T1053

Privilege Escalation

New Service

1
T1050

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

5
T1112

Disabling Security Tools

1
T1089

Virtualization/Sandbox Evasion

1
T1497

File Permissions Modification

1
T1222

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

4
T1081

Discovery

Software Discovery

1
T1518

Query Registry

8
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

8
T1082

Peripheral Device Discovery

2
T1120

Collection

Data from Local System

4
T1005

Command and Control

Web Service

1
T1102

Tasks

static1

Score
N/A

behavioral1

djvuredlinesocelarsvidar706pab123aspackv2discoveryinfostealerransomwarestealerthemida
Score
10/10

behavioral2

redlinesocelarspab123aspackv2discoveryinfostealerstealer
Score
10/10

behavioral3

redlinesocelarsvidar706anipab123aspackv2discoveryevasioninfostealerpersistencespywarestealerthemidatrojan
Score
10/10

behavioral4

redlinesocelarsvidaranimatthew14aspackv2discoveryevasioninfostealerpersistencespywarestealerthemidatrojan
Score
10/10

behavioral5

icedidredlinesmokeloadersocelarsvidar189qwe706ani3162718704aspackv2backdoorbankerdiscoveryevasioninfostealerpersistencespywarestealerthemidatrojan
Score
10/10

behavioral6

icedidredlinesmokeloadersocelarsvidar706ani3162718704aspackv2backdoorbankerdiscoveryevasioninfostealerpersistencespywarestealerthemidatrojan
Score
10/10

behavioral7

icedidredlinesmokeloadersocelarstofseevidar706ani3162718704aspackv2backdoorbankerdiscoveryevasioninfostealerpersistencespywarestealertrojan
Score
10/10

behavioral8

djvuicedidredlinesmokeloadersocelarsvidar706ani3162718704aspackv2backdoorbankerdiscoveryinfostealerransomwarespywarestealertrojan
Score
10/10

behavioral9

djvuicedidredlinesmokeloadersocelarsvidar706ani3162718704aspackv2backdoorbankerdiscoveryinfostealerransomwarespywarestealerthemidatrojan
Score
10/10