General

  • Target

    9a4c62c0ff98de600bbbbe41bb996f0577224b0461c6c.exe

  • Size

    1.5MB

  • Sample

    211204-dzr36sabcr

  • MD5

    dec22ccebba8916f15efac9fa0d19986

  • SHA1

    5dab7a780b575aadb6eec991893f4982702cd079

  • SHA256

    9a4c62c0ff98de600bbbbe41bb996f0577224b0461c6c30054a9df1751cbb474

  • SHA512

    6823bd910dc905279192f9cfbd89aa1241113875e51f4955e3a6d31ffadb1dbf804c59d383a46891a1ad1302ce65a67d58ffb555632b1966169ca1f9c2b0dd88

Malware Config

Targets

    • Target

      9a4c62c0ff98de600bbbbe41bb996f0577224b0461c6c.exe

    • Size

      1.5MB

    • MD5

      dec22ccebba8916f15efac9fa0d19986

    • SHA1

      5dab7a780b575aadb6eec991893f4982702cd079

    • SHA256

      9a4c62c0ff98de600bbbbe41bb996f0577224b0461c6c30054a9df1751cbb474

    • SHA512

      6823bd910dc905279192f9cfbd89aa1241113875e51f4955e3a6d31ffadb1dbf804c59d383a46891a1ad1302ce65a67d58ffb555632b1966169ca1f9c2b0dd88

    • 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

    • Legitimate hosting services abused for malware hosting/C2

    • 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

Command and Control

Web Service

1
T1102

Tasks