MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bf97a4d3f287f442925ba3af63741dbaa594e5ad99b6574fd660e1bbe6f8733b. 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: 6


Intelligence 6 IOCs YARA 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bf97a4d3f287f442925ba3af63741dbaa594e5ad99b6574fd660e1bbe6f8733b
SHA3-384 hash: a8eb3c1a54d28410c5dc1292b03a94e01d9c554d77e4203f9ea85e9dcce5fc9315d13150dafc478ae224950b3ad41d8d
SHA1 hash: 63036822365d5b9bca4477027a51a6b13907f83f
MD5 hash: 805b56a3eeefa38beb9a9b0df6f5dc4e
humanhash: nineteen-lake-foxtrot-robert
File name:805b56a3eeefa38beb9a9b0df6f5dc4e.exe
Download: download sample
Signature AveMariaRAT
Create hunting rule
File size:365'568 bytes
First seen:2020-10-27 15:16:28 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:1lzdTZ4rjNxG/i/OfFGr6e8QLnVXso1oTP9rKcea:1V/4rjvGiO9C6e1Bs7k
Threatray 525 similar samples on MalwareBazaar
TLSH F274D0B27D53987EC66A0B76107886C0FA7A36C63F948B0D714B070C6E15D2FAB5360B
Reporter abuse_ch
Tags:AveMariaRAT exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
75
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Sending a UDP request
Creating a window
Creating a file
Creating a process from a recently created file
DNS request
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Sending an HTTP GET request
Creating a file in the %AppData% directory
Reading critical registry keys
Deleting a recently created file
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Result
Threat name:
AveMaria
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/513876
Signature
.NET source code contains very large array initializations
Allocates memory in foreign processes
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 an autostart registry key pointing to binary in C:\Windows
Hides that the sample has been downloaded from the Internet (zone.identifier)
Increases the number of concurrent connection per server for Internet Explorer
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect virtualization through RDTSC time measurements
Tries to harvest and steal browser information (history, passwords, etc)
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected AveMaria stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 306058 Sample: C5HLedRXO4.exe Startdate: 27/10/2020 Architecture: WINDOWS Score: 100 52 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 Multi AV Scanner detection for submitted file 2->56 58 5 other signatures 2->58 9 C5HLedRXO4.exe 8 2->9         started        13 pcalua.exe 1 1 2->13         started        process3 file4 34 C:\Users\user\AppData\...\AgileDotNetRT.dll, PE32 9->34 dropped 36 C:\Users\user\AppData\...\AgileDotNetRT.dll, PE32 9->36 dropped 38 C:\Users\user\AppData\...\AddInProcess32.exe, PE32 9->38 dropped 64 Writes to foreign memory regions 9->64 66 Allocates memory in foreign processes 9->66 68 Tries to detect virtualization through RDTSC time measurements 9->68 70 Injects a PE file into a foreign processes 9->70 15 AddInProcess32.exe 3 19 9->15         started        signatures5 process6 dnsIp7 40 8e3d-wzr.duckdns.org 156.96.118.181, 49742, 5200 VDI-NETWORKUS United States 15->40 42 wetransferfax.duckdns.org 111.90.149.246, 49748, 80 SHINJIRU-MY-AS-APShinjiruTechnologySdnBhdMY Malaysia 15->42 30 C:\Users\user\AppData\Roaming\enhvbEcin.exe, PE32 15->30 dropped 32 C:\Users\user\AppData\Local\...\sftp[1].exe, PE32 15->32 dropped 44 Contains functionality to inject threads in other processes 15->44 46 Contains functionality to steal Chrome passwords or cookies 15->46 48 Contains functionality to steal e-mail passwords 15->48 50 3 other signatures 15->50 20 enhvbEcin.exe 2 15->20         started        file8 signatures9 process10 signatures11 60 Tries to detect virtualization through RDTSC time measurements 20->60 23 cmd.exe 1 20->23         started        process12 process13 25 reg.exe 1 1 23->25         started        28 conhost.exe 23->28         started        signatures14 62 Creates an autostart registry key pointing to binary in C:\Windows 25->62
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bf97a4d3f287f442925ba3af63741dbaa594e5ad99b6574fd660e1bbe6f8733b/
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2020-10-27 13:44:46 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Verdict:
suspicious
Similar samples:
0c666978e3d3fbfa2fe40db4b7de89d5e4e9d4caeacc33b54ba0311aff72a23b
AveMariaRAT
1a01e86a4f2ef09515cafe4f440a88b1c6c8155c81b2b151e5a53262c7cbf987
AveMariaRAT
25db81a9c27d2c56fb1d168f3416260ae33470a32e8adb3ff15a0b30e43abc6d
AveMariaRAT
4cffbdf1d3e2016475da67b15f0ab12a9658e0970f691cebe0bd161e2e1772b2
AveMariaRAT
4fa4af45c70295513c486589c0e36e7436be6abbf3c75e97b544db959e9dfcb5
AveMariaRAT
636da001ec9866d90d2029492c8330a69ac87eff8a9258fcf2df66ff275951cf
AveMariaRAT
7dff88b3b51db9f32b155133aba7bff719133a881082bbffd5dad02f7acf79e6
AveMariaRAT
82b070a42d50b8e37b551543e041933140f3823138b0997fccd4ad926df8183b
AveMariaRAT
c72cde3224e01da2283065c5a94d252f528c132019eb2f2656c86a7caa1006c2
AveMariaRAT
d045c6b114f25c29811bbb61864da2f464c9d5195b54d70008b7bbf91384b47f
AveMariaRAT
+ 515 additional samples on MalwareBazaar
Result
Malware family:
warzonerat
Create hunting rule
Score:
  10/10
Tags:
family:warzonerat infostealer persistence rat spyware
Link:
https://tria.ge/reports/201027-3kggj3s91n/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
JavaScript code in executable
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
Warzone RAT Payload
WarzoneRat, AveMaria
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/bf97a4d3f287f442925ba3af63741dbaa594e5ad99b6574fd660e1bbe6f8733b

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:Chrome_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Chrome in files like avemaria
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:Email_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Email in files like avemaria
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:Ping_Del_method_bin_mem
Create hunting rule
Author:James_inthe_box
Description:cmd ping IP nul del
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:Stealer_word_in_memory
Create hunting rule
Author:James_inthe_box
Description:The actual word stealer in memory
Rule name:UAC_bypass_bin_mem
Create hunting rule
Author:James_inthe_box
Description:UAC bypass in files like avemaria
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
Rule name:win_ave_maria_g0
Create hunting rule
Author:Slavo Greminger, SWITCH-CERT

File information

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

Web download

AveMariaRAT

Executable exe bf97a4d3f287f442925ba3af63741dbaa594e5ad99b6574fd660e1bbe6f8733b

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/699333/
  
Delivery method
Distributed via web download

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