f4b138048439bf5ab9ebc72556a0f0418fc80b01775fc197bad44cf4e84c5930

General
Target

f4b138048439bf5ab9ebc72556a0f0418fc80b01775fc197bad44cf4e84c5930

Size

326KB

Sample

211226-g42d7abcb8

Score
10 /10
MD5

3f935166c6e7cd181c2ad913de8fda2d

SHA1

31a4961e071b0bee5ed8ba46ee40b9ffbc2cd969

SHA256

f4b138048439bf5ab9ebc72556a0f0418fc80b01775fc197bad44cf4e84c5930

SHA512

ea6a9c7b967a8b3583aa77a20200f02d1e560fcb6ae983ba6365e9fcc614af68a01d1d18b15a92105f041d8941926dbea553b6e43379a3192efb9bba82cbc84b

Malware Config

Extracted

Family smokeloader
Version 2020
C2

http://host-data-coin-11.com/

http://file-coin-host-12.com/

http://srtuiyhuali.at/

http://fufuiloirtu.com/

http://amogohuigotuli.at/

http://novohudosovu.com/

http://brutuilionust.com/

http://bubushkalioua.com/

http://dumuilistrati.at/

http://verboliatsiaeeees.com/

rc4.i32
rc4.i32
rc4.i32
rc4.i32

Extracted

Family tofsee
C2

parubey.info

patmushta.info

Extracted

Family redline
Botnet 1
C2

86.107.197.138:38133

Targets
Target

f4b138048439bf5ab9ebc72556a0f0418fc80b01775fc197bad44cf4e84c5930

MD5

3f935166c6e7cd181c2ad913de8fda2d

Filesize

326KB

Score
10/10
SHA1

31a4961e071b0bee5ed8ba46ee40b9ffbc2cd969

SHA256

f4b138048439bf5ab9ebc72556a0f0418fc80b01775fc197bad44cf4e84c5930

SHA512

ea6a9c7b967a8b3583aa77a20200f02d1e560fcb6ae983ba6365e9fcc614af68a01d1d18b15a92105f041d8941926dbea553b6e43379a3192efb9bba82cbc84b

Tags

Signatures

  • Arkei

    Description

    Arkei is an infostealer written in C++.

    Tags

  • RedLine

    Description

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

    Tags

  • RedLine Payload

  • SmokeLoader

    Description

    Modular backdoor trojan in use since 2014.

    Tags

  • Tofsee

    Description

    Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

    Tags

  • Windows security bypass

    Tags

    TTPs

    Disabling Security ToolsModify Registry
  • xmrig

    Description

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

    Tags

  • Arkei Stealer Payload

    Tags

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

    Tags

    TTPs

    Query RegistryVirtualization/Sandbox Evasion
  • XMRig Miner Payload

    Tags

  • Creates new service(s)

    Tags

    TTPs

    New Service
  • Downloads MZ/PE file

  • Executes dropped EXE

  • Modifies Windows Firewall

    Tags

    TTPs

    Modify Existing Service
  • Sets service image path in registry

    Tags

    TTPs

    Registry Run Keys / Startup FolderModify Registry
  • Checks BIOS information in registry

    Description

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

    TTPs

    Query RegistrySystem Information Discovery
  • Deletes itself

  • Loads dropped DLL

  • Reads user/profile data of web browsers

    Description

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

    Tags

    TTPs

    Data from Local SystemCredentials in Files
  • Accesses Microsoft Outlook profiles

    Tags

    TTPs

    Email Collection
  • Accesses cryptocurrency files/wallets, possible credential harvesting

    Tags

    TTPs

    Data from Local SystemCredentials in Files
  • Checks installed software on the system

    Description

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    Tags

    TTPs

    Query Registry
  • Checks whether UAC is enabled

    Tags

    TTPs

    System Information Discovery
  • Drops file in System32 directory

  • Suspicious use of NtSetInformationThreadHideFromDebugger

  • Suspicious use of SetThreadContext

Related Tasks

MITRE ATT&CK Matrix
Command and Control
    Credential Access
    Execution
      Exfiltration
        Impact
          Initial Access
            Lateral Movement
              Privilege Escalation