Resubmissions

13-10-2021 18:35

211013-w8lxmaegdr 10

13-10-2021 12:38

211013-pvkdbadhdm 10

13-10-2021 05:30

211013-f7nrtsdfa3 10

12-10-2021 20:25

211012-y7qwasdbh4 10

11-10-2021 21:02

211011-zvywtaabdq 10

General

  • Target

    setup_x86_x64_install.exe

  • Size

    3.4MB

  • Sample

    211013-f7nrtsdfa3

  • MD5

    26f28bf2dc2b6afc0dd99cb6ea3879b8

  • SHA1

    9270b9f48e2d14cc2cbed61ee2e2389d5f69ce05

  • SHA256

    5f30eae71c1b0d08e7ec5adfc9a0dc98078595502b60a584a8df5cdf8cacf7fa

  • SHA512

    5a350373e87673c9ba39e5353bea1d7c1f2f7bc62a703ed13e892e69037008f3e2accadbdd0ec0bd976e54c68b79dfad6fb37517dd55448cac4d9d74ae8a037b

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://gmpeople.com/upload/

http://mile48.com/upload/

http://lecanardstsornin.com/upload/

http://m3600.com/upload/

http://camasirx.com/upload/

http://linavanandr11.club/

http://iselaharty12.club/

http://giovaninardo13.club/

http://zayneliann14.club/

http://zorinosali15.club/

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

Extracted

Family

redline

Botnet

ANI

C2

45.142.215.47:27643

Extracted

Family

redline

Botnet

media12

C2

91.121.67.60:2151

Extracted

Family

raccoon

Version

1.8.2

Botnet

8b1cccc4d9c4808469e507e47787671255de6bf2

Attributes
  • url4cnc

    http://teletop.top/capibar

    http://teleta.top/capibar

    https://t.me/capibar

rc4.plain
rc4.plain

Extracted

Family

cryptbot

C2

cemauw22.top

morumo02.top

Attributes
  • payload_url

    http://bojshi03.top/download.php?file=lv.exe

Extracted

Family

redline

Botnet

she

C2

135.181.129.119:4805

Extracted

Family

vidar

Version

41.2

Botnet

933

C2

https://mas.to/@serg4325

Attributes
  • profile_id

    933

Extracted

Family

vidar

Version

41.3

Botnet

903

C2

https://mas.to/@oleg98

Attributes
  • profile_id

    903

Targets

    • Target

      setup_x86_x64_install.exe

    • Size

      3.4MB

    • MD5

      26f28bf2dc2b6afc0dd99cb6ea3879b8

    • SHA1

      9270b9f48e2d14cc2cbed61ee2e2389d5f69ce05

    • SHA256

      5f30eae71c1b0d08e7ec5adfc9a0dc98078595502b60a584a8df5cdf8cacf7fa

    • SHA512

      5a350373e87673c9ba39e5353bea1d7c1f2f7bc62a703ed13e892e69037008f3e2accadbdd0ec0bd976e54c68b79dfad6fb37517dd55448cac4d9d74ae8a037b

    • CryptBot

      A C++ stealer distributed widely in bundle with other software.

    • Modifies Windows Defender Real-time Protection settings

    • Oski

      Oski is an infostealer targeting browser data, crypto wallets.

    • 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

    • Turns off Windows Defender SpyNet reporting

    • UAC bypass

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Windows security bypass

    • 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

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Sets service image path in registry

    • Stops running service(s)

    • 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

    • 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.

    • Windows security modification

    • Accesses 2FA software files, possible credential harvesting

    • Accesses Microsoft Outlook accounts

    • Accesses Microsoft Outlook profiles

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks for any installed AV software in registry

    • 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.

    • 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

Registry Run Keys / Startup Folder

3
T1060

Scheduled Task

1
T1053

BITS Jobs

1
T1197

Privilege Escalation

Bypass User Account Control

1
T1088

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

10
T1112

Disabling Security Tools

5
T1089

Bypass User Account Control

1
T1088

Virtualization/Sandbox Evasion

1
T1497

Impair Defenses

1
T1562

BITS Jobs

1
T1197

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

Security Software Discovery

1
T1063

Peripheral Device Discovery

2
T1120

Collection

Data from Local System

4
T1005

Email Collection

2
T1114

Command and Control

Web Service

1
T1102

Impact

Service Stop

1
T1489

Tasks

static1

Score
N/A

behavioral1

redlinesmokeloaderanimedia12aspackv2backdoorevasioninfostealerspywarestealertrojan
Score
10/10

behavioral2

cryptbotraccoonredlinesmokeloader8b1cccc4d9c4808469e507e47787671255de6bf2aspackv2backdoordiscoveryevasioninfostealerpersistencespywarestealertrojan
Score
10/10

behavioral3

cryptbotraccoonredlinesmokeloadervidar8b1cccc4d9c4808469e507e47787671255de6bf2933sheaspackv2backdoordiscoveryevasioninfostealerpersistencespywarestealertrojan
Score
10/10

behavioral4

oskiraccoonredlinesmokeloadersocelarsvidaranimedia12aspackv2backdoorcollectiondiscoveryevasioninfostealerpersistencespywarestealerthemidatrojan
Score
10/10

behavioral5

oskiredlinesmokeloadersocelarsvidar903933animedia12sheaspackv2backdoordiscoveryevasioninfostealerpersistencespywarestealerthemidatrojan
Score
10/10

behavioral6

redlinesmokeloaderanimedia12sheaspackv2backdoordiscoveryevasioninfostealerpersistencespywarestealerthemidatrojan
Score
10/10

behavioral7

redlinesmokeloadersocelarsvidar933sheaspackv2backdoorcollectiondiscoveryevasioninfostealerpersistencespywarestealerthemidatrojan
Score
10/10

behavioral8

redlinesmokeloadersocelarsvidar933animedia12sheaspackv2backdoorcollectiondiscoveryevasioninfostealerpersistencespywarestealerthemidatrojan
Score
10/10