General

  • Target

    4d8eb4b6fb2fa4eed4276b7c50baf235ac0f04279d6e90744561dbfd29feb6e0

  • Size

    292KB

  • Sample

    211123-stwxhaaebk

  • MD5

    b24a82aadfe1dfce4c2828aa58fe033a

  • SHA1

    25fb9580733549eae77cc73fcf1b09d1573ff352

  • SHA256

    4d8eb4b6fb2fa4eed4276b7c50baf235ac0f04279d6e90744561dbfd29feb6e0

  • SHA512

    9c5eddcdfa1e3e40ea3bc83510775fd4037ce671021f714e966ec8266ca7b9f70ce4128b6073ef9922a32eb35ff9513cb5e48e72dc5245ce83209d976619d1a8

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://nalirou70.top/

http://xacokuo80.top/

rc4.i32
rc4.i32

Extracted

Family

tofsee

C2

quadoil.ru

lakeflex.ru

Extracted

Family

redline

C2

185.159.80.90:38655

Extracted

Family

redline

Botnet

@123

C2

141.95.82.50:63652

Targets

    • Target

      4d8eb4b6fb2fa4eed4276b7c50baf235ac0f04279d6e90744561dbfd29feb6e0

    • Size

      292KB

    • MD5

      b24a82aadfe1dfce4c2828aa58fe033a

    • SHA1

      25fb9580733549eae77cc73fcf1b09d1573ff352

    • SHA256

      4d8eb4b6fb2fa4eed4276b7c50baf235ac0f04279d6e90744561dbfd29feb6e0

    • SHA512

      9c5eddcdfa1e3e40ea3bc83510775fd4037ce671021f714e966ec8266ca7b9f70ce4128b6073ef9922a32eb35ff9513cb5e48e72dc5245ce83209d976619d1a8

    • 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.

    • Tofsee

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

    • Windows security bypass

    • suricata: ET MALWARE Possible Dridex Download URI Struct with no referer

      suricata: ET MALWARE Possible Dridex Download URI Struct with no referer

    • suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

      suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

    • xmrig

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

    • XMRig Miner Payload

    • Creates new service(s)

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Modifies Windows Firewall

    • Sets service image path in registry

    • Deletes itself

    • 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.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

New Service

1
T1050

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

New Service

1
T1050

Defense Evasion

Disabling Security Tools

1
T1089

Modify Registry

2
T1112

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

2
T1005

Tasks