General

  • Target

    99306ce091ffc74939ea41621dd8e947086f6728083a2.exe

  • Size

    492KB

  • Sample

    220205-qsyzcscafr

  • MD5

    0ddd9b8a40f2cffbbdaffd79cf964e20

  • SHA1

    5bbcbc09cf0a108f85a89d67381d01e752471870

  • SHA256

    99306ce091ffc74939ea41621dd8e947086f6728083a2ff24aa02e3ae91905bd

  • SHA512

    68af7fca145570d69243fdd4bec943405233f265f1d03897baebc87f73d2a97382897b50579ef163d354781bd546d73a858ac9e78552d09dce4373f4db51af00

Malware Config

Extracted

Family

redline

Botnet

mama

C2

91.243.32.100:2358

Targets

    • Target

      99306ce091ffc74939ea41621dd8e947086f6728083a2.exe

    • Size

      492KB

    • MD5

      0ddd9b8a40f2cffbbdaffd79cf964e20

    • SHA1

      5bbcbc09cf0a108f85a89d67381d01e752471870

    • SHA256

      99306ce091ffc74939ea41621dd8e947086f6728083a2ff24aa02e3ae91905bd

    • SHA512

      68af7fca145570d69243fdd4bec943405233f265f1d03897baebc87f73d2a97382897b50579ef163d354781bd546d73a858ac9e78552d09dce4373f4db51af00

    • 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.

    • 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

    • 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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • 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

5
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

5
T1082

Collection

Data from Local System

2
T1005

Tasks