General

  • Target

    6b53e5d2d9ce484483c7580162272e18.exe

  • Size

    259KB

  • Sample

    210916-rma6sadfa3

  • MD5

    6b53e5d2d9ce484483c7580162272e18

  • SHA1

    4d044581e69f2bb876ddb15e45d15d79207360f7

  • SHA256

    395a803ba3e091e6ac2629c5591e6cd874f68332a436287d0121f5f21b3524e6

  • SHA512

    3c2d68b3e2e5df3d27d53964905116db1b498ff87b9a0ad04a007e2df58d2244e08a61ed34b5b42b5289b110519c88168805f6d48ff37dbc741b04bbdd9b96bd

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://fazanaharahe1.xyz/

http://xandelissane2.xyz/

http://ustiassosale3.xyz/

http://cytheriata4.xyz/

http://ggiergionard5.xyz/

http://rrelleynaniy6.store/

http://danniemusoa7.store/

http://nastanizab8.store/

http://onyokandis9.store/

http://dmunaavank10.store/

http://gilmandros11.site/

http://cusanthana12.site/

http://willietjeana13.site/

http://ximusokall14.site/

http://blodinetisha15.site/

http://urydiahadyss16.club/

http://glasamaddama17.club/

http://marlingarly18.club/

http://alluvianna19.club/

http://xandirkaniel20.club/

rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

Mix 1592021

C2

93.115.20.139:28978

Extracted

Family

redline

Botnet

33

C2

94.26.248.150:17618

Targets

    • Target

      6b53e5d2d9ce484483c7580162272e18.exe

    • Size

      259KB

    • MD5

      6b53e5d2d9ce484483c7580162272e18

    • SHA1

      4d044581e69f2bb876ddb15e45d15d79207360f7

    • SHA256

      395a803ba3e091e6ac2629c5591e6cd874f68332a436287d0121f5f21b3524e6

    • SHA512

      3c2d68b3e2e5df3d27d53964905116db1b498ff87b9a0ad04a007e2df58d2244e08a61ed34b5b42b5289b110519c88168805f6d48ff37dbc741b04bbdd9b96bd

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers.

    • Raccoon

      Simple but powerful infostealer which was very active in 2019.

    • 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

    • xmrig

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

    • Async RAT payload

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

    • XMRig Miner Payload

    • Creates new service(s)

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Modifies Installed Components in the registry

    • Modifies Windows Firewall

    • Sets service image path in registry

    • Checks BIOS information in registry

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

    • Deletes itself

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • 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

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

New Service

1
T1050

Registry Run Keys / Startup Folder

2
T1060

Modify Existing Service

1
T1031

Scheduled Task

1
T1053

Privilege Escalation

New Service

1
T1050

Scheduled Task

1
T1053

Defense Evasion

Disabling Security Tools

1
T1089

Modify Registry

3
T1112

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

6
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

6
T1082

Peripheral Device Discovery

2
T1120

Collection

Data from Local System

3
T1005

Tasks