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23-04-2021 05:23

210423-lejp16ex1n 10

General

  • Target

    keygen-step-4.exe

  • Size

    4.6MB

  • Sample

    210423-lejp16ex1n

  • MD5

    563107b1df2a00f4ec868acd9e08a205

  • SHA1

    9cb9c91d66292f5317aa50d92e38834861e9c9b7

  • SHA256

    bf2bd257dde4921ce83c7c1303fafe7f9f81e53c2775d3c373ced482b22eb8a9

  • SHA512

    99a8d247fa435c4cd95be7bc64c7dd6e382371f3a3c160aac3995fd705e4fd3f6622c23784a4ae3457c87536347d15eda3f08aa616450778a99376df540d74d1

Malware Config

Extracted

Family

fickerstealer

C2

sodaandcoke.top:80

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

Targets

    • Target

      keygen-step-4.exe

    • Size

      4.6MB

    • MD5

      563107b1df2a00f4ec868acd9e08a205

    • SHA1

      9cb9c91d66292f5317aa50d92e38834861e9c9b7

    • SHA256

      bf2bd257dde4921ce83c7c1303fafe7f9f81e53c2775d3c373ced482b22eb8a9

    • SHA512

      99a8d247fa435c4cd95be7bc64c7dd6e382371f3a3c160aac3995fd705e4fd3f6622c23784a4ae3457c87536347d15eda3f08aa616450778a99376df540d74d1

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • Deletes Windows Defender Definitions

      Uses mpcmdrun utility to delete all AV definitions.

    • ElysiumStealer

      ElysiumStealer (previously known as ZeromaxStealer) is an info stealer that can steal login credentials for various accounts.

    • 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.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • 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.

    • fickerstealer

      Ficker is an infostealer written in Rust and ASM.

    • xmrig

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

    • Checks for common network interception software

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

    • XMRig Miner Payload

    • 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 local data of messenger clients

      Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

    • 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.

    • 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

dcratfickerstealerdiscoveryinfostealerpersistenceratspywarestealer
Score
10/10

behavioral2

dcratelysiumstealerfickerstealerraccoontofseexmrigdiscoveryevasioninfostealerminerpersistenceratspywarestealertrojan
Score
10/10

behavioral3

dcratelysiumstealerfickerstealertofseexmrigdiscoveryevasioninfostealerminerpersistenceratspywarestealertrojan
Score
10/10

behavioral4

dcratelysiumstealerfickerstealerraccoonwarzoneratxmrigdiscoveryevasioninfostealerminerpersistenceratspywarestealertrojan
Score
10/10

behavioral5

dcratelysiumstealerfickerstealersmokeloadervidarxmrigbackdoordiscoveryevasioninfostealerminerpersistenceratspywarestealertrojan
Score
10/10

behavioral6

dcratelysiumstealerfickerstealerraccoonredlinewarzoneratxmrigdiscoveryevasioninfostealerminerpersistenceratspywarestealertrojan
Score
10/10

behavioral7

dcratelysiumstealerfickerstealertofseexmrigdiscoveryevasioninfostealerminerpersistenceratspywarestealertrojan
Score
10/10

behavioral8

dcratelysiumstealerfickerstealerraccoonredlinewarzoneratxmrigdiscoveryevasioninfostealerminerpersistenceratspywarestealertrojan
Score
10/10

behavioral9

dcratelysiumstealerfickerstealerraccoonxmrigdiscoveryevasioninfostealerminerpersistenceratspywarestealertrojan
Score
10/10

behavioral10

dcratelysiumstealerfickerstealertofseexmrigdiscoveryevasioninfostealerminerpersistenceratspywarestealertrojan
Score
10/10

behavioral11

dcratelysiumstealerfickerstealerraccoonredlinewarzoneratxmrigdiscoveryevasioninfostealerminerpersistenceratspywarestealertrojan
Score
10/10

behavioral12

dcratelysiumstealerfickerstealerraccoonwarzoneratxmrigdiscoveryevasioninfostealerminerpersistenceratspywarestealertrojan
Score
10/10