MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2257ef4353b3b6ce6b0027664b1b4017f33f45d14c03132c3625faf1d6bb2816. 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: 7


Intelligence 7 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2257ef4353b3b6ce6b0027664b1b4017f33f45d14c03132c3625faf1d6bb2816
SHA3-384 hash: 2313deb27ccd91f31872b7e21634a1d58a0591eee5b5b711c61fcc3a4cdb0a6a9dcfa97a035564331ac6b59a1e38d52c
SHA1 hash: 5c0e3417738835e907c66ceba5c186027cb326a7
MD5 hash: 80bcab3ef76e9db61c77ae9cc809dc78
humanhash: failed-crazy-cola-football
File name:IMG_00003456789.exe
Download: download sample
Signature AveMariaRAT
Create hunting rule
File size:355'840 bytes
First seen:2020-07-31 05:54:35 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:SHuZEaQKexOMSM4e1FQ8fiEyj5It7kzKksz/OUqXA5QR/KXF10x3BCcWY:SHuZEaQOxge8fE5It8KksraRCXF1Ef
Threatray 513 similar samples on MalwareBazaar
TLSH 5C74AD5CB0DA251BF41531BE9FF9829BCEA6F42F1282862B127915C7817CB486EC1F71
Reporter abuse_ch
Tags:AveMariaRAT exe nVpn Outlook RAT


Avatar
abuse_ch
Malspam distributing AveMariaRAT:

HELO: APC01-HK2-obe.outbound.protection.outlook.com
Sending IP: 40.92.255.32
From: Johny Young <johnyyyoung@hotmail.com>
Subject: purchase order
Attachment: IMG_00003456789.arj (contains "IMG_00003456789.exe")

AveMariaRAT C2:
185.244.29.137:1604

Hosted on nVpn:

% Information related to '185.244.29.0 - 185.244.29.255'

% Abuse contact for '185.244.29.0 - 185.244.29.255' is 'abuse@privacyfirst.sh'

inetnum: 185.244.29.0 - 185.244.29.255
remarks: This prefix is assigned to The PRIVACYFIRST Project, which
remarks: operates infrastructure jointly used by various VPN service
remarks: providers. We have a very strong focus on privacy and freedom.
remarks: In case of abuse, we encourage all international law enforcement
remarks: agencies to get in touch with our abuse contact. Due to the fact
remarks: that we keep no logs of user activities and only share data when
remarks: it is legally required under our jurisdiction, it is very unlikely
remarks: for a demand of user information to be successful. Still, that
remarks: should not deter you from reaching out.
netname: PRIVACYFIRST-ASIA1
country: SC
admin-c: TPP15-RIPE
tech-c: TPP15-RIPE
org: ORG-TPP6-RIPE
status: SUB-ALLOCATED PA
mnt-by: PRIVACYFIRST-MNT
created: 2018-01-31T19:41:57Z
last-modified: 2020-07-28T20:53:46Z
source: RIPE

Intelligence

File Origin
# of uploads :
1
# of downloads :
80
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/35792/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Creating a process from a recently created file
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Result
Threat name:
AveMaria
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/404514
Signature
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
Hides that the sample has been downloaded from the Internet (zone.identifier)
Increases the number of concurrent connection per server for Internet Explorer
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected AveMaria stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 254486 Sample: IMG_00003456789.exe Startdate: 31/07/2020 Architecture: WINDOWS Score: 100 50 Malicious sample detected (through community Yara rule) 2->50 52 Sigma detected: Scheduled temp file as task from temp location 2->52 54 Yara detected AntiVM_3 2->54 56 7 other signatures 2->56 8 IMG_00003456789.exe 7 2->8         started        12 images.exe 2 2->12         started        process3 file4 36 C:\Users\user\AppData\...\&startupname&.exe, PE32 8->36 dropped 38 C:\Users\user\AppData\Local\...\tmp828B.tmp, XML 8->38 dropped 40 C:\...\&startupname&.exe:Zone.Identifier, ASCII 8->40 dropped 42 C:\Users\user\...\IMG_00003456789.exe.log, ASCII 8->42 dropped 62 Contains functionality to inject threads in other processes 8->62 64 Contains functionality to steal Chrome passwords or cookies 8->64 66 Contains functionality to steal e-mail passwords 8->66 14 IMG_00003456789.exe 5 5 8->14         started        18 schtasks.exe 1 8->18         started        68 Injects a PE file into a foreign processes 12->68 20 images.exe 1 12->20         started        signatures5 process6 file7 44 C:\ProgramData\images.exe, PE32 14->44 dropped 46 C:\ProgramData\images.exe:Zone.Identifier, ASCII 14->46 dropped 70 Increases the number of concurrent connection per server for Internet Explorer 14->70 72 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->72 22 images.exe 3 14->22         started        25 conhost.exe 18->25         started        signatures8 process9 signatures10 58 Machine Learning detection for dropped file 22->58 60 Injects a PE file into a foreign processes 22->60 27 images.exe 2 22->27         started        30 images.exe 22->30         started        32 images.exe 22->32         started        34 images.exe 22->34         started        process11 dnsIp12 48 185.244.29.137, 1604, 49734 DAVID_CRAIGGG Netherlands 27->48
Detection:
avemaria
Create hunting rule
Link:
https://mwdb.cert.pl/sample/2257ef4353b3b6ce6b0027664b1b4017f33f45d14c03132c3625faf1d6bb2816/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-07-31 05:56:08 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ejl66q2two3m42yae5tewg2ac7zt6rorjqbrglbwex5pdvv3fala._file
Verdict:
malicious
Label(s):
avemaria
Create hunting rule
Similar samples:
1fafadae2db218051fb1b353ac4682f0b5fc71e757c3fe094315a7127e94a091
AveMariaRAT
24e82b6d52501a968a09b294dff28bca82368e5974bdeca97cef781a111ff3c8
AveMariaRAT
3c73fc6ab8a765ea48a1ee51a2a3142fe05332e4661c2f2ec0526ae225acf308
AveMariaRAT
5d8ce7ae5c35fe83e9be319245bd0bd769e7b663dfe09afdb01251aee288a300
AveMariaRAT
5e1663a897c64460d68fdf6848b63f589680e75f4d935258a7862b9d1ff617b1
AveMariaRAT
713b5b1e6e84fadb65d3f5000e1bf1eeec0287e45c19f05d97a9445020149083
AveMariaRAT
a3655b55fca072854a2913e545999b86b33d24e49da56e5ecd8c37bd99f4afed
AveMariaRAT
ad1a08a8f15ac0b57f23c950aa111f54075bdd708c91fc47899947808ae6e086
AveMariaRAT
dc819faf213b4e30194d132a5d5e1393392a735ddff185f7a958cad8817e3bf0
AveMariaRAT
f16b478c89a680a108e8fd07cd46fc553978819135a21208bb0e8f92e2fdd794
AveMariaRAT
+ 503 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/200731-4ysccvat6j/
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Program crash
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/2257ef4353b3b6ce6b0027664b1b4017f33f45d14c03132c3625faf1d6bb2816

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: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.

Malspam

AveMariaRAT

arj e6f116f295e61c78a7c301bd8aeaae17190f20f1cfab749be89551129a62f02e

AveMariaRAT

Executable exe 2257ef4353b3b6ce6b0027664b1b4017f33f45d14c03132c3625faf1d6bb2816

(this sample)

  
Dropped by
MD5 88214bd38d80b0419de8d658c065839c
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 e6f116f295e61c78a7c301bd8aeaae17190f20f1cfab749be89551129a62f02e
Cape
Cape
https://www.capesandbox.com/analysis/35792/

Comments