arkei

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General

Target

setup_x86_x64_install.exe
Size

4.2MB
Sample

211008-wh6t4segb6
MD5

71c3c6ef549daa7a9e2fe5cecb83031f
SHA1

29b6c64e806bdc864ca37a62e50478c3179284a4
SHA256

e6080d51c23ff3825d6dda3280757ba1ce88be4b06d10bf9960a0d79973b43e3
SHA512

adb3c1350c732dc676356350edd8402b5e470836601f5252092ca369867dca48fb94e0038192a32363ee82402388c41a2eaac3558f1aaf8c15c3fc6944d6e09d

Malware Config

Extracted

Family

vidar

Version

41.2

Botnet

916

https://mas.to/@serg4325

Attributes

profile_id
916

Extracted

Family

redline

Botnet

media8

91.121.67.60:2151

Extracted

Family

redline

Botnet

sehrish

135.181.129.119:4805

Extracted

Family

smokeloader

Version

2020

http://gmpeople.com/upload/

http://mile48.com/upload/

http://lecanardstsornin.com/upload/

http://m3600.com/upload/

http://camasirx.com/upload/

http://fazanaharahe10.top/

http://xandelissane20.top/

http://ustiassosale30.top/

http://cytheriata40.top/

http://ggiergionard50.top/

rc4.i32

Extracted

Family

vidar

Version

41.2

Botnet

933

https://mas.to/@serg4325

Attributes

profile_id
933

Extracted

Path

C:\!!! ALL YOUR FILES ARE ENCRYPTED !!!.TXT

Family

buran

Ransom Note

!!! ALL YOUR FILES ARE ENCRYPTED !!! All your files, documents, photos, databases and other important files are encrypted. You are not able to decrypt it by yourself! The only method of recovering files is to purchase an unique private key. Only we can give you this key and only we can recover your files. To be sure we have the decryptor and it works you can send an email: [email protected] and decrypt one file for free. But this file should be of not valuable! Do you really want to restore your files? Write to email: [email protected] Telegram @payransom500 Btc 500$ adress bc1qas8m3c2jv4uyurxacdt99ujj6gp6xt4tqeul8l Your personal ID: 6DA-9F7-1B6 Attention! * Do not rename encrypted files. * Do not try to decrypt your data using third party software, it may cause permanent data loss. * Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.

Emails

[email protected]

Extracted

Path

C:\Users\Admin\Desktop\!!! ALL YOUR FILES ARE ENCRYPTED !!!.TXT

Family

buran

Ransom Note

!!! ALL YOUR FILES ARE ENCRYPTED !!! All your files, documents, photos, databases and other important files are encrypted. You are not able to decrypt it by yourself! The only method of recovering files is to purchase an unique private key. Only we can give you this key and only we can recover your files. To be sure we have the decryptor and it works you can send an email: [email protected] and decrypt one file for free. But this file should be of not valuable! Do you really want to restore your files? Write to email: [email protected] Telegram @payransom500 Btc 500$ adress bc1qas8m3c2jv4uyurxacdt99ujj6gp6xt4tqeul8l Your personal ID: 1C6-0F1-08A Attention! * Do not rename encrypted files. * Do not try to decrypt your data using third party software, it may cause permanent data loss. * Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.

Emails

[email protected]

Extracted

Family

raccoon

Version

1.8.2

Botnet

c95bfeb977df680e3fb35c1ce322d091ffdbaf92

Attributes

url4cnc
http://teletop.top/vvhotsummer
http://teleta.top/vvhotsummer
https://t.me/vvhotsummer

rc4.plain

Targets

- Target
  
  setup_x86_x64_install.exe
- Size
  
  4.2MB
- MD5
  
  71c3c6ef549daa7a9e2fe5cecb83031f
- SHA1
  
  29b6c64e806bdc864ca37a62e50478c3179284a4
- SHA256
  
  e6080d51c23ff3825d6dda3280757ba1ce88be4b06d10bf9960a0d79973b43e3
- SHA512
  
  adb3c1350c732dc676356350edd8402b5e470836601f5252092ca369867dca48fb94e0038192a32363ee82402388c41a2eaac3558f1aaf8c15c3fc6944d6e09d
Score

10^/10

redline smokeloader socelars vidar xmrig 916 933 media8 sehrish aspackv2 backdoor discovery evasion infostealer miner persistence spyware stealer trojan arkei buran raccoon c95bfeb977df680e3fb35c1ce322d091ffdbaf92 collection ransomware themida tofsee
- Arkei
  Arkei is an infostealer written in C++.
  stealer arkei
- Buran
  Ransomware-as-a-service based on the VegaLocker family first identified in 2019.
  ransomware buran
- Modifies Windows Defender Real-time Protection settings
  evasion trojan
- Process spawned unexpected child process
  This typically indicates the parent process was compromised via an exploit or macro.
- Raccoon
  Simple but powerful infostealer which was very active in 2019.
  stealer raccoon
- RedLine
  RedLine Stealer is a malware family written in C#, first appearing in early 2020.
  infostealer redline
- RedLine Payload
- SmokeLoader
  Modular backdoor trojan in use since 2014.
  trojan backdoor smokeloader
- Socelars
  Socelars is an infostealer targeting browser cookies and credit card credentials.
  stealer socelars
- Socelars Payload
- Suspicious use of NtCreateProcessExOtherParentProcess
- Tofsee
  Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
  trojan tofsee
- Vidar
  Vidar is an infostealer based on Arkei stealer.
  stealer vidar
- rl_trojan
  redline stealer.
  stealer
- xmrig
  XMRig is a high performance, open source, cross platform CPU/GPU miner.
  miner xmrig
- Arkei Stealer Payload
  stealer
- Checks for common network interception software
  Looks in the registry for tools like Wireshark or Fiddler commonly used to analyze network activity.
  evasion
- Deletes shadow copies
  Ransomware often targets backup files to inhibit system recovery.
  ransomware
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
  evasion
- Vidar Stealer
  stealer
- XMRig Miner Payload
  miner
- ASPack v2.12-2.42
  Detects executables packed with ASPack v2.12-2.42
  aspackv2
- Blocklisted process makes network request
- Creates new service(s)
  persistence
- Downloads MZ/PE file
- Drops file in Drivers directory
- Executes dropped EXE
- Modifies Windows Firewall
  evasion
- Checks BIOS information in registry
  BIOS information is often read in order to detect sandboxing environments.
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Loads dropped DLL
- Reads user/profile data of local email clients
  Email clients store some user data on disk where infostealers will often target it.
  spyware stealer
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- Themida packer
  Detects Themida, an advanced Windows software protection system.
  themida
- Accesses 2FA software files, possible credential harvesting
  spyware stealer
- Accesses Microsoft Outlook accounts
  collection
- Accesses Microsoft Outlook profiles
  collection
- Accesses cryptocurrency files/wallets, possible credential harvesting
  spyware
- Adds Run key to start application
  persistence
- Checks installed software on the system
  Looks up Uninstall key entries in the registry to enumerate software on the system.
  discovery
- Checks whether UAC is enabled
  evasion trojan
- Enumerates connected drives
  Attempts to read the root path of hard drives other than the default C: drive.
- 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
behavioral1 behavioral2 behavioral3 behavioral4 behavioral5 behavioral6 behavioral7 behavioral8

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Modify Existing Service

T1031

New Service

T1050

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

New Service

T1050

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Disabling Security Tools

T1089

File Deletion

T1107

Virtualization/Sandbox Evasion

T1497

Install Root Certificate

T1130

Credential Access

Credentials in Files

T1081

Discovery

Software Discovery

T1518

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

System Information Discovery

T1082

Peripheral Device Discovery

T1120

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Exfiltration

Command and Control

Web Service

T1102

Impact

Inhibit System Recovery

T1490

Tasks

Sharing

General

Malware Config

Extracted

Extracted

Extracted

Extracted

Extracted

Extracted

Extracted

Extracted

Targets

Buran

Modifies Windows Defender Real-time Protection settings

Process spawned unexpected child process

Raccoon

RedLine

RedLine Payload

SmokeLoader

Socelars

Socelars Payload

Suspicious use of NtCreateProcessExOtherParentProcess

Tofsee

Vidar

rl_trojan

xmrig

Arkei Stealer Payload

Checks for common network interception software

Deletes shadow copies

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

Vidar Stealer

XMRig Miner Payload

ASPack v2.12-2.42

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 BIOS information in registry

Checks computer location settings

Loads dropped DLL

Reads user/profile data of local email clients

Reads user/profile data of web browsers

Themida packer

Accesses 2FA software files, possible credential harvesting

Accesses Microsoft Outlook accounts

Accesses Microsoft Outlook profiles

Accesses cryptocurrency files/wallets, possible credential harvesting

Adds Run key to start application

Checks installed software on the system

Checks whether UAC is enabled

Enumerates connected drives

Legitimate hosting services abused for malware hosting/C2

Looks up external IP address via web service

Drops file in System32 directory

Suspicious use of NtSetInformationThreadHideFromDebugger

Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Tasks

static1

behavioral1

behavioral2

behavioral3

behavioral4

behavioral5

behavioral6

behavioral7

behavioral8