MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 788a1ba33ea985319691fbc507903f931ec24675df46e135e99e242c6d678f89. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 788a1ba33ea985319691fbc507903f931ec24675df46e135e99e242c6d678f89
SHA3-384 hash: ac18eb9f4ab9acc11d7763685052475e9a8d1ad565355a7153be6d309ae52095e25b12d19b4a259d2ddc7eefcb947d27
SHA1 hash: 9eba7871af070fd0bdc320d7165ce16e486db139
MD5 hash: 184967dd3dfb03ed025551f4c124a56d
humanhash: jersey-alanine-ohio-kitten
File name:BID (Universidad de Costa Rica) CR0824-2023-0.exe
Download: download sample
Signature AveMariaRAT
Create hunting rule
File size:1'302'480 bytes
First seen:2023-03-02 16:51:17 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash b34f154ec913d2d2c435cbd644e91687 (533 x GuLoader, 110 x RemcosRAT, 80 x EpsilonStealer)
ssdeep 24576:ulCajHVMqjMayhCJD7ZeR3LtRlxpSAqWm9+q4mwuFrzTA:JArMa0CJZehfYlejuFrzTA
Threatray 322 similar samples on MalwareBazaar
TLSH T1C25512BB6E081F2AC8BB4EB81C767637471FDC0D39960706E265BAE8BE71351D815603
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon d4d4d4d4ccd4cce8 (1 x AveMariaRAT, 1 x Loki)
Reporter abuse_ch
Tags:AveMariaRAT exe RAT signed

Code Signing Certificate

Organisation:
Issuer:
Algorithm:sha256WithRSAEncryption
Valid from:2022-07-05T23:17:55Z
Valid to:2025-07-04T23:17:55Z
Serial number: 1a7dcf7f037087ff26007903b1b8f54ceaf8b3e6
Thumbprint Algorithm:SHA256
Thumbprint: 93e49ec2051a41867a5569270dc27f5db8f5fa68ffdfb6c977792815594e42bd
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform


Avatar
abuse_ch
AveMariaRAT C2:
91.193.75.206:3657

Intelligence

File Origin
# of uploads :
1
# of downloads :
260
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
guloader
Create hunting rule
ID:
1
File name:
BID (Universidad de Costa Rica) CR0824-2023-0.exe
Verdict:
Malicious activity
Analysis date:
2023-03-02 16:53:00 UTC
Tags:
guloader
Link:
https://app.any.run/tasks/3646b543-f5c8-4476-82f9-d349310a5fba

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/371256/
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Creating a file
Delayed reading of the file
Creating a file in the %temp% subdirectories
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/6400d435bfec0852a68e82bb/reports/c12fda24-6b30-4578-a32d-9821a453ef59/overview
Verdict:
Malicious
Labled as:
Win/grayware_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/788a1ba33ea985319691fbc507903f931ec24675df46e135e99e242c6d678f89
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/b881d565-3171-4c2d-8318-6155a1f39314
Result
Threat name:
AveMaria, GuLoader, UACMe
Create hunting rule
Detection:
malicious
Classification:
troj.evad.rans.phis.spyw.expl
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1185959
Signature
Adds a directory exclusion to Windows Defender
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to hide user accounts
Drops PE files to the document folder of the user
Found potential ransomware demand text
Hides that the sample has been downloaded from the Internet (zone.identifier)
Hides user accounts
Increases the number of concurrent connection per server for Internet Explorer
Malicious sample detected (through community Yara rule)
Modifies the windows firewall
Multi AV Scanner detection for dropped file
Snort IDS alert for network traffic
Tries to detect Any.run
Tries to harvest and steal browser information (history, passwords, etc)
Uses dynamic DNS services
Uses netsh to modify the Windows network and firewall settings
Yara detected AveMaria stealer
Yara detected GuLoader
Yara detected UACMe UAC Bypass tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 11958 Sample: BID (Universidad de Costa R... Startdate: 02/03/2023 Architecture: WINDOWS Score: 100 76 vtzjnphtvnpckznxhxpb.duckdns.org 2->76 78 googlehosted.l.googleusercontent.com 2->78 80 2 other IPs or domains 2->80 94 Snort IDS alert for network traffic 2->94 96 Malicious sample detected (through community Yara rule) 2->96 98 Multi AV Scanner detection for dropped file 2->98 100 9 other signatures 2->100 12 BID (Universidad de Costa Rica) CR0824-2023-0.exe 44 2->12         started        16 Windows.exe 15 2->16         started        18 rdpvideominiport.sys 2->18         started        20 2 other processes 2->20 signatures3 process4 file5 66 C:\Users\user\sylteeddike\...\winsdksetup.exe, PE32 12->66 dropped 68 C:\Users\user\sylteeddike\...\Sics36.Exo, data 12->68 dropped 70 C:\Users\user\AppData\Local\...\System.dll, PE32 12->70 dropped 126 Tries to detect Any.run 12->126 22 BID (Universidad de Costa Rica) CR0824-2023-0.exe 5 11 12->22         started        72 C:\Users\user\AppData\Local\...\System.dll, PE32 16->72 dropped 27 WerFault.exe 21 16->27         started        signatures6 process7 dnsIp8 86 googlehosted.l.googleusercontent.com 142.250.186.33, 443, 49809, 49825 GOOGLEUS United States 22->86 88 drive.google.com 142.250.74.206, 443, 49808, 49824 GOOGLEUS United States 22->88 62 C:\Users\user\Documents\Windows.exe, PE32 22->62 dropped 64 C:\Users\user\...\Windows.exe:Zone.Identifier, ASCII 22->64 dropped 110 Adds a directory exclusion to Windows Defender 22->110 112 Tries to detect Any.run 22->112 114 Increases the number of concurrent connection per server for Internet Explorer 22->114 116 Hides that the sample has been downloaded from the Internet (zone.identifier) 22->116 29 Windows.exe 15 22->29         started        33 powershell.exe 23 22->33         started        file9 signatures10 process11 file12 74 C:\Users\user\AppData\Local\...\System.dll, PE32 29->74 dropped 128 Adds a directory exclusion to Windows Defender 29->128 130 Tries to detect Any.run 29->130 35 Windows.exe 5 41 29->35         started        40 conhost.exe 33->40         started        signatures13 process14 dnsIp15 82 vtzjnphtvnpckznxhxpb.duckdns.org 91.193.75.206, 3657, 49827 DAVID_CRAIGGG Serbia 35->82 84 127.0.0.1 unknown unknown 35->84 54 C:\Users\user\AppData\Local\...\softokn3.dll, PE32 35->54 dropped 56 C:\Users\user\AppData\Local\Temp\nss3.dll, PE32 35->56 dropped 58 C:\Users\user\AppData\Local\...\mozglue.dll, PE32 35->58 dropped 60 6 other files (3 malicious) 35->60 dropped 102 Hides user accounts 35->102 104 Tries to harvest and steal browser information (history, passwords, etc) 35->104 106 Adds a directory exclusion to Windows Defender 35->106 108 Tries to detect Any.run 35->108 42 7.exe 35->42         started        46 powershell.exe 35->46         started        file16 signatures17 process18 dnsIp19 90 192.168.11.1, 5351 unknown unknown 42->90 92 239.255.255.250, 1900 unknown Reserved 42->92 118 Antivirus detection for dropped file 42->118 120 Multi AV Scanner detection for dropped file 42->120 122 Uses netsh to modify the Windows network and firewall settings 42->122 124 Modifies the windows firewall 42->124 48 netsh.exe 42->48         started        50 conhost.exe 46->50         started        signatures20 process21 process22 52 conhost.exe 48->52         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/788a1ba33ea985319691fbc507903f931ec24675df46e135e99e242c6d678f89/
Threat name:
Win32.Trojan.NsisInject
Create hunting rule
Status:
Malicious
First seen:
2023-03-02 17:01:36 UTC
File Type:
PE (Exe)
Extracted files:
91
AV detection:
12 of 25 (48.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=pcfbxiz6vgctdfur7pcqpeb7smpmertv35docnpjtyscy3lhr6eq._file
Verdict:
malicious
Label(s):
avemaria
Create hunting rule
Similar samples:
0bbdc2b18ba665641f8cd7829ab805fd9ca549737d9a17a1c4aea701cdff06cc
AveMariaRAT
136f87c6d9a1b61c87ba550c7f550e54d66a1b51dab1c803c43705f178ed9e55
AveMariaRAT
38af759cbc6513d04d12de480a4554bc4b1ac50124b8a7c0174e22b7ea1ec2ae
AveMariaRAT
4f93f4cec712117b9e8bd20f079e8086b6358f0d0b2738a8a448dbdf9fc3db3c
AveMariaRAT
635aff002f09930542b741c8e5ae7e6ed57b4cacf793dabb96a2df3397a8a945
AveMariaRAT
8b69babe730fbc56fc2e9a2a8be28e380931bedf8118a5a8be9d97678781c9c7
AveMariaRAT
b9c205ac1dc948cb5cfa1976b97d531df0b99d8e5d58be4eabbefdf8005984b3
AveMariaRAT
d6e26fa2f4dcfe5a112c21fb851f626aa7ee8e9f6cac73bd27f927b054f7182d
AveMariaRAT
+ 312 additional samples on MalwareBazaar
Result
Malware family:
warzonerat
Create hunting rule
Score:
  10/10
Tags:
family:guloader family:warzonerat downloader infostealer persistence rat
Link:
https://tria.ge/reports/230302-vdedmadd7z/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Legitimate hosting services abused for malware hosting/C2
Checks QEMU agent file
Executes dropped EXE
Loads dropped DLL
Warzone RAT payload
Guloader,Cloudeye
WarzoneRat, AveMaria
Malware Config
C2 Extraction:
vtzjnphtvnpckznxhxpb.duckdns.org:3657
Unpacked files
SH256 hash:
a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7
MD5 hash:
75ed96254fbf894e42058062b4b4f0d1
SHA1 hash:
996503f1383b49021eb3427bc28d13b5bbd11977
Link:
https://www.unpac.me/results/c7098aaa-2068-4365-9c71-8818970f3ae8/
SH256 hash:
788a1ba33ea985319691fbc507903f931ec24675df46e135e99e242c6d678f89
MD5 hash:
184967dd3dfb03ed025551f4c124a56d
SHA1 hash:
9eba7871af070fd0bdc320d7165ce16e486db139
Link:
https://www.unpac.me/results/c7098aaa-2068-4365-9c71-8818970f3ae8/
Malware family:
Warzone
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/788a1ba33ea9/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/788a1ba33ea985319691fbc507903f931ec24675df46e135e99e242c6d678f89

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:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits

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/371256/

Comments