General

  • Target

    0b91486fe1450b8bbc0afac372b2a097.exe

  • Size

    1.5MB

  • Sample

    211201-pt2wzafba9

  • MD5

    0b91486fe1450b8bbc0afac372b2a097

  • SHA1

    9de1fc177cd1a9d4429989f263b7744a9e1b2bd8

  • SHA256

    d1a878f7e56555387cd80938e9572d63a906cc06529e98796668cdbdb39578ed

  • SHA512

    075a2bda4aec7f20a72860bc14a992014ab1fa29450af3077a71d60cb8d8de87ffbc21357842199285a882b838189583c15c4951604713530e02c98aad011f6a

Malware Config

Targets

    • Target

      0b91486fe1450b8bbc0afac372b2a097.exe

    • Size

      1.5MB

    • MD5

      0b91486fe1450b8bbc0afac372b2a097

    • SHA1

      9de1fc177cd1a9d4429989f263b7744a9e1b2bd8

    • SHA256

      d1a878f7e56555387cd80938e9572d63a906cc06529e98796668cdbdb39578ed

    • SHA512

      075a2bda4aec7f20a72860bc14a992014ab1fa29450af3077a71d60cb8d8de87ffbc21357842199285a882b838189583c15c4951604713530e02c98aad011f6a

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine Payload

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

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

    • XMRig Miner Payload

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • 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

    • 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 file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

3
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

3
T1082

Collection

Data from Local System

2
T1005

Tasks