Resubmissions

28-10-2021 15:53

211028-tbqhfabhb2 10

28-10-2021 05:27

211028-f5paksheak 10

27-10-2021 14:29

211027-rt28vafah7 10

General

  • Target

    setup_installer.exe

  • Size

    4MB

  • Sample

    211027-rt28vafah7

  • MD5

    b356bccf8b9aff2897ecc42970367f44

  • SHA1

    fe06861ac4952834ddc290dd5e0e7f36c8adc018

  • SHA256

    b9325691870376c72e29be06648c8106ceefd9a94dbbfbee9a4fc2b76fc9b6d3

  • SHA512

    7fc510e5575e36919c302ff053eef6f7cb5700e9e011fb5d85dd80c5ec9c97664dcad8b6607b68b10daf8a6fbc584ff1218c30e541431fd32570da8553c662b7

Malware Config

Extracted

Family

socelars

C2

http://www.iyiqian.com/

http://www.hbgents.top/

http://www.rsnzhy.com/

http://www.efxety.top/

Extracted

Family

redline

Botnet

media26

C2

91.121.67.60:23325

Extracted

Family

redline

Botnet

chris

C2

194.104.136.5:46013

Extracted

Family

smokeloader

Version

2020

C2

http://brandyjaggers.com/upload/

http://andbal.com/upload/

http://alotofquotes.com/upload/

http://szpnc.cn/upload/

http://uggeboots.com/upload/

http://100klv.com/upload/

http://rapmusic.at/upload/

rc4.i32
rc4.i32

Extracted

Family

vidar

Version

41.6

Botnet

933

C2

https://mas.to/@lilocc

Attributes
  • profile_id

    933

Extracted

Family

xloader

Version

2.5

Campaign

s0iw

C2

http://www.kyiejenner.com/s0iw/

Decoy

ortopediamodelo.com

orimshirts.store

universecatholicweekly.info

yvettechan.com

sersaudavelsempre.online

face-booking.net

europeanretailgroup.com

umofan.com

roemahbajumuslim.online

joyrosecuisine.net

3dmaker.house

megdb.xyz

stereoshopie.info

gv5rm.com

tdc-trust.com

mcglobal.club

choral.works

onlineconsultantgroup.com

friscopaintandbody.com

midwestii.com

Targets

    • Target

      setup_installer.exe

    • Size

      4MB

    • MD5

      b356bccf8b9aff2897ecc42970367f44

    • SHA1

      fe06861ac4952834ddc290dd5e0e7f36c8adc018

    • SHA256

      b9325691870376c72e29be06648c8106ceefd9a94dbbfbee9a4fc2b76fc9b6d3

    • SHA512

      7fc510e5575e36919c302ff053eef6f7cb5700e9e011fb5d85dd80c5ec9c97664dcad8b6607b68b10daf8a6fbc584ff1218c30e541431fd32570da8553c662b7

    • Amadey

      Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Formbook

      Formbook is a data stealing malware which is capable of stealing data.

    • Modifies Windows Defender Real-time Protection settings

    • 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

    • 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

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Xloader

      Xloader is a rebranded version of Formbook malware.

    • Zloader, Terdot, DELoader, ZeusSphinx

      Zloader is a malware strain that was initially discovered back in August 2015.

    • rl_trojan

      redline 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

    • Xloader Payload

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

    • Adds policy Run key to start application

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Sets service image path in registry

    • Tries to connect to .bazar domain

      Attempts to lookup or connect to a .bazar domain, used by BazarBackdoor, Trickbot, and potentially others.

    • 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 web browsers

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

    • 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

    • 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.

    • Looks up geolocation information via web service

      Uses a legitimate geolocation service to find the infected system's geolocation info.

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    • autoit_exe

      AutoIT scripts compiled to PE executables.

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

3
T1060

Bootkit

1
T1067

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

6
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

3
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

Remote System Discovery

1
T1018

Collection

Data from Local System

3
T1005

Command and Control

Web Service

1
T1102

Tasks

static1

Score
N/A

behavioral1

redlinesmokeloadersocelarsvidar933chrismedia26aspackv2backdoordiscoveryevasioninfostealerpersistencespywarestealertrojan
Score
10/10

behavioral2

socelarsvidar933aspackv2discoveryevasionpersistencespywarestealertrojan
Score
10/10

behavioral3

redlinesmokeloadersocelarsmedia26aspackv2backdoorinfostealerspywarestealertrojan
Score
10/10

behavioral4

amadeyformbookredlinesocelarsxloaderchrismedia26s0iwaspackv2discoveryevasioninfostealerloaderpersistenceratspywarestealertrojan
Score
10/10

behavioral5

amadeydjvuformbookredlinesmokeloadersocelarsvidarzloader933chrismedia26aspackv2backdoorbotnetdiscoveryevasioninfostealerpersistenceransomwarespywarestealertrojan
Score
10/10

behavioral6

amadeyredlinesmokeloadersocelarsvidar933chrismedia26aspackv2backdoorbootkitdiscoveryevasioninfostealerpersistencespywarestealertrojan
Score
10/10

behavioral7

amadeydjvuredlinesmokeloadersocelarsvidarmedia26aspackv2backdoordiscoveryevasioninfostealerpersistenceransomwarespywarestealertrojan
Score
10/10