Resubmissions

28-10-2021 05:22

211028-f2ypvahcb9 10

27-10-2021 13:37

211027-qw5ajsehc4 10

General

  • Target

    Password_is_5432764372___BitlyWindows10t.exe

  • Size

    15.2MB

  • Sample

    211027-qw5ajsehc4

  • MD5

    da5aeb58d5eb8c855ae1edd303ae3e5c

  • SHA1

    737d43206e98464433e27ee5981040d2904bcd42

  • SHA256

    4a72c2884235efd7f6428699d2f7750590eb34154ab2bd05a1aeb92a4a0e2352

  • SHA512

    b0a000ad6cd340aa2b8af9195276f772e5be16c574a3344e23964856c29e0fda734c703d461f9f3c985dd248538c42e45181efdabca10bcea649b79c1c685ac6

Malware Config

Extracted

Family

redline

Botnet

221021

C2

m360li.info:81

Targets

    • Target

      Password_is_5432764372___BitlyWindows10t.exe

    • Size

      15.2MB

    • MD5

      da5aeb58d5eb8c855ae1edd303ae3e5c

    • SHA1

      737d43206e98464433e27ee5981040d2904bcd42

    • SHA256

      4a72c2884235efd7f6428699d2f7750590eb34154ab2bd05a1aeb92a4a0e2352

    • SHA512

      b0a000ad6cd340aa2b8af9195276f772e5be16c574a3344e23964856c29e0fda734c703d461f9f3c985dd248538c42e45181efdabca10bcea649b79c1c685ac6

    • Azorult

      An information stealer that was first discovered in 2016, targeting browsing history and passwords.

    • 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

    • Socelars

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

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • ACProtect 1.3x - 1.4x DLL software

      Detects file using ACProtect software.

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

    • Adds policy Run key to start application

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source 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.

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • 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.

    • 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

Command-Line Interface

1
T1059

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

2
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

5
T1112

Disabling Security Tools

1
T1089

Virtualization/Sandbox Evasion

1
T1497

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

8
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

9
T1082

Peripheral Device Discovery

2
T1120

Remote System Discovery

1
T1018

Collection

Data from Local System

2
T1005

Command and Control

Web Service

1
T1102

Tasks