MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fc4b29f54e0b3ed0493ba85310a2665ab47e5143f3cb3ce09686f0560dd1ed04. 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


AveMariaRAT


Vendor detections: 8


Intelligence 8 IOCs YARA 6 File information Comments 2
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fc4b29f54e0b3ed0493ba85310a2665ab47e5143f3cb3ce09686f0560dd1ed04
SHA3-384 hash: 223cb7c1578fa6f9b762e102632a5efb6b05d9d6954715e20a664bde8a416c4c99b9d061952f6873688efa3065b32baa
SHA1 hash: 5acc6cfbebd22685f9205975938793692f3ff628
MD5 hash: 0d24c1c7dd21c01170bcec87653aba0b
humanhash: saturn-april-eighteen-march
File name:PKO-240920.exe
Download: download sample
Signature AveMariaRAT
Create hunting rule
File size:193'872 bytes
First seen:2020-09-24 13:43:03 UTC
Last seen:2020-09-25 14:57:45 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 3072:4mqqgGn512pQjY3Az90WipyVsMawcvElWjVcbOztVD:UqgG5126yS0r4hawUEMcbOj
Threatray 431 similar samples on MalwareBazaar
TLSH 35146B1BB25E0B1CE7669771743B82B146E9EF67B82246C8B2F1FD3E443916C91112D3
Reporter Anonymous
Tags:AveMariaRAT

Intelligence

File Origin
# of uploads :
3
# of downloads :
99
Origin country :
n/a
Vendor Threat Intelligence
Detection:
WarzoneRAT
Create hunting rule
Link:
https://www.capesandbox.com/analysis/65419/
Detection(s):
SecuriteInfo.com.FileRepMalware.13461.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a process with a hidden window
Sending a UDP request
DNS request
Sending a custom TCP request
Adding an access-denied ACE
Launching the default Windows debugger (dwwin.exe)
Launching cmd.exe command interpreter
Using the Windows Management Instrumentation requests
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun
Enabling autorun by creating a file
Unauthorized injection to a system process
Result
Threat name:
AveMaria
Create hunting rule
Detection:
malicious
Classification:
phis.troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/474280
Signature
Allocates memory in foreign processes
Contains functionality to hide a thread from the debugger
Contains functionality to hide user accounts
Contains functionality to inject threads in other processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal e-mail passwords
Creates a thread in another existing process (thread injection)
Creates an undocumented autostart registry key
Creates autostart registry keys with suspicious names
Drops PE files to the startup folder
Hides that the sample has been downloaded from the Internet (zone.identifier)
Hides threads from debuggers
Increases the number of concurrent connection per server for Internet Explorer
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected AntiVM_3
Yara detected AveMaria stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 289585 Sample: PKO-240920.exe Startdate: 24/09/2020 Architecture: WINDOWS Score: 100 76 Malicious sample detected (through community Yara rule) 2->76 78 Multi AV Scanner detection for submitted file 2->78 80 Yara detected AntiVM_3 2->80 82 4 other signatures 2->82 8 PKO-240920.exe 17 4 2->8         started        13 PKO-240920.exe 2->13         started        15 PKO-240920.exe 2 2->15         started        17 PKO-240920.exe 2 2->17         started        process3 dnsIp4 64 paste.nrecom.net 8->64 66 server5.nrecom.net 37.120.174.218, 443, 49717, 49723 NETCUP-ASnetcupGmbHDE Germany 8->66 58 C:\Users\user\AppData\...\PKO-240920.exe, PE32 8->58 dropped 60 C:\Users\...\PKO-240920.exe:Zone.Identifier, ASCII 8->60 dropped 92 Creates an undocumented autostart registry key 8->92 94 Drops PE files to the startup folder 8->94 96 Writes to foreign memory regions 8->96 98 Contains functionality to hide a thread from the debugger 8->98 19 aspnet_state.exe 3 2 8->19         started        23 WerFault.exe 23 9 8->23         started        26 timeout.exe 1 8->26         started        68 paste.nrecom.net 13->68 100 Creates autostart registry keys with suspicious names 13->100 102 Allocates memory in foreign processes 13->102 104 Hides threads from debuggers 13->104 34 3 other processes 13->34 70 paste.nrecom.net 15->70 72 192.168.2.1 unknown unknown 15->72 106 Injects a PE file into a foreign processes 15->106 28 WerFault.exe 15->28         started        30 timeout.exe 1 15->30         started        36 2 other processes 15->36 74 paste.nrecom.net 17->74 32 WerFault.exe 17->32         started        38 2 other processes 17->38 file5 signatures6 process7 dnsIp8 62 wzefi.duckdns.org 194.5.97.15, 49718, 9901 DANILENKODE Netherlands 19->62 84 Contains functionality to inject threads in other processes 19->84 86 Contains functionality to steal Chrome passwords or cookies 19->86 88 Contains functionality to steal e-mail passwords 19->88 90 5 other signatures 19->90 40 cmd.exe 1 19->40         started        52 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 23->52 dropped 42 conhost.exe 26->42         started        54 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 28->54 dropped 44 conhost.exe 30->44         started        56 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 32->56 dropped 46 conhost.exe 34->46         started        48 conhost.exe 38->48         started        file9 signatures10 process11 process12 50 conhost.exe 40->50         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/fc4b29f54e0b3ed0493ba85310a2665ab47e5143f3cb3ce09686f0560dd1ed04/
Threat name:
ByteCode-MSIL.Spyware.AveMaria
Create hunting rule
Status:
Malicious
First seen:
2020-09-24 12:23:25 UTC
AV detection:
34 of 48 (70.83%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=7rfst5kobm7nasj3vbjrbitglk2h4ukd6pftzyewq3yfmdor5uca._file
Verdict:
malicious
Label(s):
avemaria
Create hunting rule
Similar samples:
043c7dd432720c9a854ddec54afef3c2651b6f419b7e58be93531cc75ec7e5d3
AveMariaRAT
15441eeb20d70b9245b9c70958ba8b05ce42d7ee9bd579e975c681084b108e22
AveMariaRAT
49f5e75f64b5a1620cc9a6cbd3870e87853aecb3ef4019ac1a42bdd8a0c499e7
AveMariaRAT
578df50c34d2f8f3146e5c4a457c4e9eac639070d3766ba202c84af6a790d4a7
AveMariaRAT
60d7b2ab0fb53d37576c2edd50231cc82e87d0c0cee85afddac247cb795164c3
AveMariaRAT
9d71c01a2e63e041ca58886eba792d3fc0c0064198d225f2f0e2e70c6222365c
AveMariaRAT
aec7bb752bfb4fb49d6d363db8393e84a05da72cd3b54a9b368bc43adcd3f08d
AveMariaRAT
d30b949fc05b15b611b3fe420b6883062c5bb2b270c769540c48f703a46cbbf3
AveMariaRAT
df6b12e28602092e6841be50355a76684b5333b236cf9b8441dd73fc1abbf4ae
AveMariaRAT
e97d4cbbbb923b04cee8f87235ad15ab83a7cba51984422cdfdcfefa7e81d457
AveMariaRAT
+ 421 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  10/10
Tags:
persistence
Link:
https://tria.ge/reports/200924-6n85dmh8s6/
Behaviour
Delays execution with timeout.exe
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Program crash
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Adds Run key to start application
Drops startup file
Drops startup file
Modifies WinLogon for persistence
Modifies WinLogon for persistence
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/fc4b29f54e0b3ed0493ba85310a2665ab47e5143f3cb3ce09686f0560dd1ed04

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:Cobalt_functions
Create hunting rule
Author:@j0sm1
Description:Detect functions coded with ROR edi,D; Detect CobaltStrike used by differents groups APT
Rule name:Codoso_Gh0st_1
Create hunting rule
Author:Florian Roth
Description:Detects Codoso APT Gh0st Malware
Reference:https://www.proofpoint.com/us/exploring-bergard-old-malware-new-tricks
Rule name:Codoso_Gh0st_2
Create hunting rule
Author:Florian Roth
Description:Detects Codoso APT Gh0st Malware
Reference:https://www.proofpoint.com/us/exploring-bergard-old-malware-new-tricks
Rule name:MAL_Envrial_Jan18_1
Create hunting rule
Author:Florian Roth
Description:Detects Encrial credential stealer malware
Reference:https://twitter.com/malwrhunterteam/status/953313514629853184
Rule name:RDPWrap
Create hunting rule
Author:@bartblaze
Description:Identifies RDP Wrapper, sometimes used by attackers to maintain persistence.
Reference:https://github.com/stascorp/rdpwrap
Rule name:win_ave_maria_auto
Create hunting rule
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.

Cape
Cape
https://www.capesandbox.com/analysis/65419/

Comments


Avatar
Kili commented on 2020-10-01 06:24:31 UTC

This thing is complex attack in four stages:
1. stage downloads encoded second stage
2. second stage deploys: 3rd stage, AdancedRun and drops from resources AveMaria - which is detected by sandbox.
3. third stage deploys NanoCore RAT - possibly this was done manually by attacker.

Avatar
Kili commented on 2020-09-24 16:33:04 UTC

I don't think this might be AveMaria (at least not as previously known version).