Resubmissions

24-04-2021 20:28

210424-hdvwe2nvza 10

24-04-2021 19:13

210424-ybjq8yj7ej 10

24-04-2021 19:13

210424-lbec8bsxas 10

24-04-2021 19:13

210424-p1q7nfdl5n 10

24-04-2021 19:13

210424-zsvmftzny6 10

24-04-2021 15:54

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24-04-2021 08:51

210424-fycslxztl2 10

24-04-2021 06:48

210424-dpw71r8bwa 10

General

  • Target

    keygen-step-4.exe

  • Size

    4.6MB

  • Sample

    210424-fycslxztl2

  • MD5

    563107b1df2a00f4ec868acd9e08a205

  • SHA1

    9cb9c91d66292f5317aa50d92e38834861e9c9b7

  • SHA256

    bf2bd257dde4921ce83c7c1303fafe7f9f81e53c2775d3c373ced482b22eb8a9

  • SHA512

    99a8d247fa435c4cd95be7bc64c7dd6e382371f3a3c160aac3995fd705e4fd3f6622c23784a4ae3457c87536347d15eda3f08aa616450778a99376df540d74d1

Malware Config

Extracted

Family

fickerstealer

C2

sodaandcoke.top:80

Extracted

Family

zloader

Botnet

googleaktualizacija

Campaign

googleaktualizacija2

C2

https://iqowijsdakm.com/gate.php

https://wiewjdmkfjn.com/gate.php

https://dksaoidiakjd.com/gate.php

https://iweuiqjdakjd.com/gate.php

https://yuidskadjna.com/gate.php

https://olksmadnbdj.com/gate.php

https://odsakmdfnbs.com/gate.php

https://odsakjmdnhsaj.com/gate.php

https://odjdnhsaj.com/gate.php

https://odoishsaj.com/gate.php

rc4.plain
rsa_pubkey.plain

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.

    • 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.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Tofsee

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

    • Windows security bypass

    • Zloader, Terdot, DELoader, ZeusSphinx

      Zloader is a malware strain that was initially discovered back in August 2015.

    • 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.

    • Nirsoft

    • 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.

    • 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.

    • 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 SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks

static1

Score
N/A

behavioral1

dcratfickerstealerxmrigdiscoveryevasioninfostealerminerpersistenceratspywarestealer
Score
10/10

behavioral2

dcratfickerstealerraccoonxmrigdiscoveryevasioninfostealerminerpersistenceratspywarestealertrojan
Score
10/10

behavioral3

dcratfickerstealerraccoonxmrigdiscoveryevasioninfostealerminerpersistenceratspywarestealertrojan
Score
10/10

behavioral4

dcratfickerstealerxmrigdiscoveryevasioninfostealerminerpersistenceratspywarestealertrojan
Score
10/10

behavioral5

dcratfickerstealerxmrigzloadergoogleaktualizacijagoogleaktualizacija2botnetdiscoveryinfostealerminerrattrojan
Score
10/10

behavioral6

dcratfickerstealertofseexmrigdiscoveryevasioninfostealerminerpersistenceratspywarestealertrojan
Score
10/10

behavioral7

dcratfickerstealerraccoonredlinexmrigdiscoveryevasioninfostealerminerpersistenceratspywarestealertrojan
Score
10/10

behavioral8

dcratfickerstealerraccoonxmrigdiscoveryevasioninfostealerminerpersistenceratspywarestealertrojan
Score
10/10

behavioral9

dcratfickerstealertofseexmrigdiscoveryevasioninfostealerminerpersistenceratspywarestealertrojan
Score
10/10

behavioral10

dcratfickerstealerraccoonxmrigdiscoveryevasioninfostealerminerpersistenceratspywarestealertrojan
Score
10/10

behavioral11

dcratfickerstealerraccoonxmrigdiscoveryevasioninfostealerminerpersistenceratspywarestealertrojan
Score
10/10

behavioral12

dcratfickerstealerraccoonxmrigdiscoveryevasioninfostealerminerpersistenceratspywarestealertrojan
Score
10/10