Resubmissions

24-04-2021 06:39

210424-lmjja25q22 10

23-04-2021 19:10

210423-f6mvfx4yyx 10

23-04-2021 19:10

210423-3qnl3etjca 10

23-04-2021 18:20

210423-4keqsccdba 10

23-04-2021 13:38

210423-1f2d5v8a2s 10

23-04-2021 04:53

210423-eenyvz5kqj 10

23-04-2021 04:53

210423-svr8rrwggs 10

23-04-2021 04:53

210423-95h13plc2x 10

22-04-2021 19:11

210422-6s1zd291s6 10

22-04-2021 19:05

210422-dsvj9bzkvn 10

General

  • Target

    Install.exe

  • Size

    497KB

  • Sample

    210423-svr8rrwggs

  • MD5

    41a5f4fd1ea7cac4aa94a87aebccfef0

  • SHA1

    0d0abf079413a4c773754bf4fda338dc5b9a8ddc

  • SHA256

    97e95e99fd499ec45a7c1d8683d5731ce5e7a8fb8b710622e578cd169a00d8d9

  • SHA512

    5ca14bda498f26efff4e1179969b8f2c25244063c7bf25f3ec20b5cd24b5be320bbfb8b3d0b2d66f5c5b415da777a766fece5f251a4247773c6cb991417fb75f

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://999080321newfolder1002002131-service1002.space/

http://999080321newfolder1002002231-service1002.space/

http://999080321newfolder3100231-service1002.space/

http://999080321newfolder1002002431-service1002.space/

http://999080321newfolder1002002531-service1002.space/

http://999080321newfolder33417-012425999080321.space/

http://999080321test125831-service10020125999080321.space/

http://999080321test136831-service10020125999080321.space/

http://999080321test147831-service10020125999080321.space/

http://999080321test146831-service10020125999080321.space/

http://999080321test134831-service10020125999080321.space/

http://999080321est213531-service1002012425999080321.ru/

http://999080321yes1t3481-service10020125999080321.ru/

http://999080321test13561-service10020125999080321.su/

http://999080321test14781-service10020125999080321.info/

http://999080321test13461-service10020125999080321.net/

http://999080321test15671-service10020125999080321.tech/

http://999080321test12671-service10020125999080321.online/

http://999080321utest1341-service10020125999080321.ru/

http://999080321uest71-service100201dom25999080321.ru/

rc4.i32
rc4.i32

Extracted

Family

raccoon

Botnet

9afb493c6f82d08075dbbfa7d93ce97f1dbf4733

Attributes
  • url4cnc

    https://tttttt.me/antitantief3

rc4.plain
rc4.plain

Targets

    • Target

      Install.exe

    • Size

      497KB

    • MD5

      41a5f4fd1ea7cac4aa94a87aebccfef0

    • SHA1

      0d0abf079413a4c773754bf4fda338dc5b9a8ddc

    • SHA256

      97e95e99fd499ec45a7c1d8683d5731ce5e7a8fb8b710622e578cd169a00d8d9

    • SHA512

      5ca14bda498f26efff4e1179969b8f2c25244063c7bf25f3ec20b5cd24b5be320bbfb8b3d0b2d66f5c5b415da777a766fece5f251a4247773c6cb991417fb75f

    • Deletes Windows Defender Definitions

      Uses mpcmdrun utility to delete all AV definitions.

    • 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.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • TelegramRat

      Telegram_rat.

    • Tofsee

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

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • WarzoneRat, AveMaria

      WarzoneRat is a native RAT developed in C++ with multiple plugins sold as a MaaS.

    • Windows security bypass

    • Checks for common network interception software

      Looks in the registry for tools like Wireshark or Fiddler commonly used to analyze network activity.

    • Nirsoft

    • Blocklisted process makes network request

    • Creates new service(s)

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Modifies Windows Firewall

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops startup file

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

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

    • Windows security modification

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks for any installed AV software in registry

    • 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

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks

static1

Score
N/A

behavioral1

persistence
Score
8/10

behavioral2

raccoonredlinesmokeloader9afb493c6f82d08075dbbfa7d93ce97f1dbf4733backdoordiscoveryevasioninfostealerpersistenceratspywarestealertelegramtrojan
Score
10/10

behavioral3

raccoonsmokeloaderwarzonerat9afb493c6f82d08075dbbfa7d93ce97f1dbf4733backdoordiscoveryevasioninfostealerpersistenceratspywarestealertrojan
Score
10/10

behavioral4

raccoonredlinesmokeloaderwarzoneratbackdoordiscoveryevasioninfostealerpersistenceratspywarestealertrojan
Score
10/10

behavioral5

smokeloadervidarbackdoordiscoveryevasionpersistencespywarestealertrojan
Score
10/10

behavioral6

raccoonredlinesmokeloader9afb493c6f82d08075dbbfa7d93ce97f1dbf4733backdoordiscoveryinfostealerpersistenceratstealertelegramtrojan
Score
10/10

behavioral7

raccoonsmokeloadertofsee9afb493c6f82d08075dbbfa7d93ce97f1dbf4733backdoordiscoveryevasionpersistenceratstealertelegramtrojan
Score
10/10

behavioral8

raccoonredlinesmokeloaderwarzonerat9afb493c6f82d08075dbbfa7d93ce97f1dbf4733backdoordiscoveryevasioninfostealerpersistenceratspywarestealertrojan
Score
10/10

behavioral9

raccoonsmokeloadertofsee9afb493c6f82d08075dbbfa7d93ce97f1dbf4733backdoordiscoveryevasionpersistenceratstealertelegramtrojan
Score
10/10

behavioral10

raccoonsmokeloaderwarzonerat9afb493c6f82d08075dbbfa7d93ce97f1dbf4733backdoordiscoveryevasioninfostealerpersistenceratspywarestealertelegramtrojan
Score
10/10

behavioral11

raccoonsmokeloaderwarzonerat9afb493c6f82d08075dbbfa7d93ce97f1dbf4733backdoordiscoveryevasioninfostealerpersistenceratspywarestealertelegramtrojan
Score
10/10

behavioral12

raccoonsmokeloader9afb493c6f82d08075dbbfa7d93ce97f1dbf4733backdoordiscoveryevasionpersistenceratspywarestealertelegramtrojan
Score
10/10