MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4b3bed149062abeddef6fe68cbb439f5ae3d3044a4870a125f83dfd37c34ca6c. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Intelligence File information Yara 1 Comments

SHA256 hash: 4b3bed149062abeddef6fe68cbb439f5ae3d3044a4870a125f83dfd37c34ca6c
SHA3-384 hash: a7235f0955a116b66852bc5eda27fa238d0a319d6c553865c34a8ec356a68d784a975761bcc21ce8213f5a7ffc29b25c
SHA1 hash: fefb3fb2abbb7847badffed0f9fad5a2b922b963
MD5 hash: f24873db74e421aea902858fc094c601
humanhash: eleven-august-tennis-emma
File name:f24873db74e421aea902858fc094c601.exe
Download: download sample
Signature ArkeiStealer
File size:603'633 bytes
First seen:2020-07-31 10:02:02 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash c9adc83b45e363b21cd6b11b5da0501f
ssdeep 12288:pANwRo+mv8QD4+0V16HdO4/4+4jSbyJ1qml8Jwvr6WXDPuXlQJes:pAT8QE+kGdj9Bml8Jw3D2iJ1
TLSH 73D40135B6428537C1220936885FD27AB53ABB042F7C54CFBBDD0E2CDD3334A2A65296
Reporter @abuse_ch
Tags:ArkeiStealer exe


Twitter
@abuse_ch
ArkeiStealer C2:
http://lawrencemaths.com/

KPOTStealer C2:
http://89.249.67.27/bUjyAvgAIgcicUbB/util.php

Intelligence


File Origin
# of uploads :
1
# of downloads :
30
Origin country :
US US
Mail intelligence
No data
Vendor Threat Intelligence
Result
Threat name:
Vidar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
92 / 100
Signature
Binary contains a suspicious time stamp
Detected unpacking (changes PE section rights)
Found many strings related to Crypto-Wallets (likely being stolen)
Machine Learning detection for dropped file
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file access)
Uses ping.exe to check the status of other devices and networks
Uses regedit.exe to modify the Windows registry
Yara detected Vidar stealer
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 255270 Sample: fF7nqYAaFh.exe Startdate: 31/07/2020 Architecture: WINDOWS Score: 92 62 g.msn.com 2->62 64 asf-ris-prod-neurope.northeurope.cloudapp.azure.com 2->64 80 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->80 82 Yara detected Vidar stealer 2->82 84 Machine Learning detection for dropped file 2->84 86 4 other signatures 2->86 9 fF7nqYAaFh.exe 18 23 2->9         started        signatures3 process4 file5 40 C:\Program Files (x86)\...\wotsuper1.exe, PE32 9->40 dropped 42 C:\Program Files (x86)\...\wotsuper.exe, PE32 9->42 dropped 44 C:\Windows\wotsuper.reg, Little-endian 9->44 dropped 46 2 other files (1 malicious) 9->46 dropped 12 wotsuper1.exe 16 9->12         started        17 wotsuper.exe 27 9->17         started        19 iexplore.exe 14 83 9->19         started        21 regedit.exe 9->21         started        process6 dnsIp7 70 kduck.emc 89.45.4.239, 49728, 49730, 80 M247GB Romania 12->70 72 scgadvexmail19mn.xyz 5.61.33.129, 49735, 80 LEASEWEB-DE-FRA-10DE United Kingdom 12->72 74 192.168.2.1 unknown unknown 12->74 48 C:\Users\user\AppData\Local\...\935fc77a..exe, PE32 12->48 dropped 50 C:\Users\user\AppData\Local\...\atx111[1].exe, PE32 12->50 dropped 92 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 12->92 94 Tries to steal Mail credentials (via file access) 12->94 23 935fc77a..exe 12->23         started        26 cmd.exe 12->26         started        76 lawrencemaths.com 78.142.29.223, 49729, 80 VERDINABZ Bulgaria 17->76 52 C:\Users\user\AppData\...\mozglue[1].dll, PE32 17->52 dropped 54 C:\Users\user\AppData\...\msvcp140[1].dll, PE32 17->54 dropped 56 C:\Users\user\AppData\...\freebl3[1].dll, PE32 17->56 dropped 58 2 other files (none is malicious) 17->58 dropped 78 iplogger.org 19->78 29 iexplore.exe 35 19->29         started        file8 signatures9 process10 dnsIp11 88 Detected unpacking (changes PE section rights) 23->88 90 Machine Learning detection for dropped file 23->90 31 935fc77a..exe 23->31         started        66 127.0.0.1 unknown unknown 26->66 34 conhost.exe 26->34         started        36 PING.EXE 26->36         started        68 iplogger.org 88.99.66.31, 443, 49731, 49732 HETZNER-ASDE Germany 29->68 38 ssvagent.exe 501 29->38         started        signatures12 process13 file14 60 C:\Users\user\AppData\Local\Temp\D47F.tmp, PE32 31->60 dropped
Threat name:
Win32.Infostealer.Vidar
Status:
Malicious
First seen:
2020-07-30 19:06:22 UTC
AV detection:
25 of 31 (80.65%)
Threat level
  5/5
Result
Malware family:
n/a
Score:
  10/10
Tags:
spyware discovery
Behaviour
Runs .reg file with regedit
Modifies data under HKEY_USERS
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Checks processor information in registry
Kills process with taskkill
Runs ping.exe
Modifies system certificate store
Modifies Internet Explorer settings
Checks whether UAC is enabled
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Modifies Internet Explorer settings
Runs ping.exe
Suspicious use of AdjustPrivilegeToken
Runs .reg file with regedit
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Checks whether UAC is enabled
Modifies Control Panel
Suspicious use of SetWindowsHookEx
Enumerates system info in registry
Suspicious use of WriteProcessMemory
Modifies registry class
Kills process with taskkill
Drops file in Program Files directory
Drops file in Windows directory
Drops file in Program Files directory
Drops file in Windows directory
Suspicious use of SetThreadContext
Suspicious use of SetThreadContext
Checks installed software on the system
Looks up external IP address via web service
JavaScript code in executable
Legitimate hosting services abused for malware hosting/C2
JavaScript code in executable
Looks up external IP address via web service
Program crash
Legitimate hosting services abused for malware hosting/C2
Checks installed software on the system
Reads user/profile data of web browsers
Reads user/profile data of local email clients
Loads dropped DLL
Loads dropped DLL
Reads user/profile data of web browsers
Reads user/profile data of local email clients
Executes dropped EXE
Executes dropped EXE
Suspicious use of NtCreateProcessExOtherParentProcess
Threat name:
Malicious File
Score:
0.87

Yara Signatures


Rule name:win_kpot_stealer_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

ArkeiStealer

Executable exe 4b3bed149062abeddef6fe68cbb439f5ae3d3044a4870a125f83dfd37c34ca6c

(this sample)

  
Delivery method
Distributed via web download

Comments