General

  • Target

    91c43b63ed3549c521e4166ab7358e29ce19f8087c9053a8c6b6e4f17ddeb4c5

  • Size

    3.9MB

  • Sample

    211011-nqm3zahaf5

  • MD5

    99854fad01d4d709cb0f609463491ddf

  • SHA1

    dad4de38bedd0dd97a7e76f1e78c60f5dc26c35f

  • SHA256

    91c43b63ed3549c521e4166ab7358e29ce19f8087c9053a8c6b6e4f17ddeb4c5

  • SHA512

    9f743e0d598be9563621f5547aae94324a21d5cf3ac6bd6055a8c5d01b49c2fcc7c3ae0d2c4f817a90bfe87c3feb359bc4b1f53433ca5678e6bdb895e5e8c3cd

Malware Config

Extracted

Family

redline

Botnet

she

C2

135.181.129.119:4805

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/

rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

ANI

C2

45.142.215.47:27643

Targets

    • Target

      91c43b63ed3549c521e4166ab7358e29ce19f8087c9053a8c6b6e4f17ddeb4c5

    • Size

      3.9MB

    • MD5

      99854fad01d4d709cb0f609463491ddf

    • SHA1

      dad4de38bedd0dd97a7e76f1e78c60f5dc26c35f

    • SHA256

      91c43b63ed3549c521e4166ab7358e29ce19f8087c9053a8c6b6e4f17ddeb4c5

    • SHA512

      9f743e0d598be9563621f5547aae94324a21d5cf3ac6bd6055a8c5d01b49c2fcc7c3ae0d2c4f817a90bfe87c3feb359bc4b1f53433ca5678e6bdb895e5e8c3cd

    • 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

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

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

    • Downloads MZ/PE file

    • Executes dropped EXE

    • 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.

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • 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

    • 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

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

3
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

6
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

6
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

2
T1005

Command and Control

Web Service

1
T1102

Tasks