MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b7ec42faae4bbaedc15483e17176375dd38e15af6bbab3fa5cd8aaf94bd57102. 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


Vidar


Vendor detections: 16


Intelligence 16 IOCs YARA 6 File information Comments
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SHA256 hash: b7ec42faae4bbaedc15483e17176375dd38e15af6bbab3fa5cd8aaf94bd57102
SHA3-384 hash: affa12cff498069282c290835019006c5f8a05479396364b59cb5aa8509e1b31ce342ce58e42a3dc4da8359294040e81
SHA1 hash: 3ca0a773d8ca87c1db116558602989979b4843ab
MD5 hash: 6adb9139dad4f645580123d20c5b44ab
humanhash: fruit-nevada-magazine-edward
File name:preview873.exe
Download: download sample
Signature Vidar
Create hunting rule
File size:841'216 bytes
First seen:2023-05-21 11:16:55 UTC
Last seen:2023-05-21 18:55:47 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f682da34b918ddb61703d12aa2522a66 (3 x Vidar, 2 x Stop)
ssdeep 12288:zAJnkwm0hsI9I/ReRaMLMFvSCizQi6qcE4WCoAGavzfgvxfnjc:WW0OIipKaMLMVxic3nbWIzfgvVnj
Threatray 799 similar samples on MalwareBazaar
TLSH T1E805D003A280BCA6F926063E9E1ECBFC765EF9514F0D6B9B62586A2B14701F3C573711
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 90a8ccc088d08480 (1 x Vidar)
Reporter Neiki
Tags:vidar

Intelligence

File Origin
# of uploads :
3
# of downloads :
125
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
stop
Create hunting rule
ID:
1
File name:
preview873.exe
Verdict:
Malicious activity
Analysis date:
2023-05-21 11:31:16 UTC
Tags:
loader ransomware stop
Link:
https://app.any.run/tasks/5bdcf3d1-75a6-49f2-b515-bf83c14d0654

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Sanesecurity.Malware.29322.BadIN.UNOFFICIAL
Create hunting rule

Win.Packer.pkr_ce1a-9980177-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Sending an HTTP GET request
Creating a file
Launching a process
Creating a process with a hidden window
Adding an access-denied ACE
Сreating synchronization primitives
Deleting a recently created file
Sending a custom TCP request
Searching for synchronization primitives
Query of malicious DNS domain
Sending a TCP request to an infection source
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Sending an HTTP GET request to an infection source
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
greyware lockbit packed ursnif
Link:
https://www.filescan.io/uploads/6469fdc4dce377a01b63f65b/reports/560bd4be-cf24-4dbb-b4b7-37ec9610d546/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/b7ec42faae4bbaedc15483e17176375dd38e15af6bbab3fa5cd8aaf94bd57102
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.
Malware family:
STOP Ransomware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5dcb966c-b898-485f-ae85-71eac682e802
Result
Threat name:
Babuk, Clipboard Hijacker, Djvu, Vidar
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1238595
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Found ransom note / readme
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies existing user documents (likely ransomware behavior)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Crypto Currency Wallets
Uses known network protocols on non-standard ports
Uses schtasks.exe or at.exe to add and modify task schedules
Writes a notice file (html or txt) to demand a ransom
Writes many files with high entropy
Yara detected Babuk Ransomware
Yara detected Clipboard Hijacker
Yara detected Djvu Ransomware
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 871588 Sample: preview873.exe Startdate: 21/05/2023 Architecture: WINDOWS Score: 100 86 Snort IDS alert for network traffic 2->86 88 Multi AV Scanner detection for domain / URL 2->88 90 Found malware configuration 2->90 92 11 other signatures 2->92 11 preview873.exe 2->11         started        14 preview873.exe 2->14         started        16 preview873.exe 2->16         started        18 2 other processes 2->18 process3 signatures4 102 Detected unpacking (changes PE section rights) 11->102 104 Detected unpacking (overwrites its own PE header) 11->104 106 Writes a notice file (html or txt) to demand a ransom 11->106 110 2 other signatures 11->110 20 preview873.exe 1 16 11->20         started        108 Injects a PE file into a foreign processes 14->108 24 preview873.exe 12 14->24         started        26 preview873.exe 16->26         started        28 preview873.exe 18->28         started        30 schtasks.exe 18->30         started        process5 dnsIp6 76 api.2ip.ua 162.0.217.254, 443, 49719, 49720 ACPCA Canada 20->76 58 C:\Users\...\preview873.exe:Zone.Identifier, ASCII 20->58 dropped 60 C:\Users\user\AppData\...\preview873.exe, MS-DOS 20->60 dropped 32 preview873.exe 20->32         started        35 icacls.exe 20->35         started        37 conhost.exe 30->37         started        file7 process8 signatures9 84 Injects a PE file into a foreign processes 32->84 39 preview873.exe 1 25 32->39         started        process10 dnsIp11 78 colisumy.com 39->78 80 zexeq.com 187.212.201.145, 49721, 49722, 49723 UninetSAdeCVMX Mexico 39->80 82 2 other IPs or domains 39->82 62 C:\_readme.txt, ASCII 39->62 dropped 64 C:\Users\user\_readme.txt, ASCII 39->64 dropped 66 StartUnifiedTileMo...che.dat.xaro (copy), data 39->66 dropped 68 278 other files (148 malicious) 39->68 dropped 100 Modifies existing user documents (likely ransomware behavior) 39->100 44 build2.exe 39->44         started        47 build3.exe 39->47         started        file12 signatures13 process14 file15 112 Detected unpacking (changes PE section rights) 44->112 114 Detected unpacking (overwrites its own PE header) 44->114 116 Injects a PE file into a foreign processes 44->116 50 build2.exe 44->50         started        70 C:\Users\user\AppData\Roaming\...\mstsca.exe, PE32 47->70 dropped 118 Uses schtasks.exe or at.exe to add and modify task schedules 47->118 54 schtasks.exe 47->54         started        signatures16 process17 dnsIp18 72 t.me 149.154.167.99, 443, 49724 TELEGRAMRU United Kingdom 50->72 74 49.12.115.154, 49725, 8333 HETZNER-ASDE Germany 50->74 94 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 50->94 96 Tries to harvest and steal browser information (history, passwords, etc) 50->96 98 Tries to steal Crypto Currency Wallets 50->98 56 conhost.exe 54->56         started        signatures19 process20
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b7ec42faae4bbaedc15483e17176375dd38e15af6bbab3fa5cd8aaf94bd57102/
Threat name:
Win32.Trojan.Smokeloader
Create hunting rule
Status:
Malicious
First seen:
2023-05-18 22:06:51 UTC
File Type:
PE (Exe)
Extracted files:
54
AV detection:
29 of 37 (78.38%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=w7wef6vojo5o3qkuqpqxc5rxlxjy4fnpno5lh6s43cvpss6voeba._file
Verdict:
malicious
Similar samples:
28c3528b809644ab676d16c1f13ecf970b7ae087f8387006112fec79db5052bf
Vidar
30c76f05ef5f620e025fdbe3586002e54410ba8675bf8d5aa7e26a656a769fac
Vidar
360006e9a559eb1322117c356b79852e642479ec9a729e01bf25505310dd2e94
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484c5744d61f823650e0e4d8c6f4b0c7235a3ebab72af70ecaa8f15f11f4e0d2
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5f32994ba18ea60037aaaaa54590f5f05168f8aca109b3d2d43b072e1195f3d8
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611555ad45f406141e18bf4a8611d2a8028d7f637090c1e95b99882884a1656b
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90925440b152418f4955cb81fcf2ba978c73923eb9bfcc12627fa779bb82acc1
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9397ff6e983a3a071173c76e020e464ee2df3def8925c373eafaf38eaa410bbe
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d3e4e4c70db693465dbb2a31f30ce08961d424707c1283280c0101c85d56e699
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f0fee7303e943a55b74e19e10f23a0f433e8af720516e2488d19dc7fbfb447c6
Vidar
+ 789 additional samples on MalwareBazaar
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:djvu family:vidar botnet:9dfa7ee730fa2f1efb5ed51dbbec22f5 discovery persistence ransomware spyware stealer
Link:
https://tria.ge/reports/230521-ndrwdsce8t/
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Delays execution with timeout.exe
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Accesses 2FA software files, possible credential harvesting
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Checks installed software on the system
Looks up external IP address via web service
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Modifies file permissions
Reads user/profile data of web browsers
Downloads MZ/PE file
Detected Djvu ransomware
Djvu Ransomware
Vidar
Malware Config
C2 Extraction:
http://zexeq.com/raud/get.php
https://steamcommunity.com/profiles/76561199263069598
https://t.me/cybehost
Unpacked files
SH256 hash:
73c5945a60d82e8da47c17290d959b8240a87b08fc1419dc15b2d71bec78d949
MD5 hash:
8e2aacd95f63ef0b3143d71c45339b4c
SHA1 hash:
8e65171bbba30ca66cfec169c2c5a6049925443a
Detections:
win_stop_auto
Create hunting rule
Link:
https://www.unpac.me/results/aaf53e5f-dd1e-4142-a43b-c69757c68cae/
Parent samples :
073288cf76b4cf05299bd491d99eee7323c23c80d31f5632d17469fddf4593ec
1602a3f2931c5d793cc9500c69850fa4cc12b319c0eb2198d18c176579273fd2
22497547a2b75686dffc674699174778510bb76a14141249581b8cecffdf9c2d
42861dac2769a42a12bc836dafa23317be73911646b00abcb7b70aac34e061f8
4833cee293c3ab4e6d6068d81afad03d27d1ab0314a4ee092a65c66d56325b16
6b74200e92d384d0fa4223f8c9fafd1365f4b9a0c3e2d107f2b65d3457794a10
968dd2b3636954d551acef1487e898e1d10231e55f43f62369fe76555def03bb
8f2486c896e10bb516f077a31e6d36c281c868ca4214ab44ee4d5306311d481e
3e618b09bbab54dd0bd81e5ff61964768c527c998f5e9464a0239ca7ec23cadf
9e7dfc2e09525f92fd865aa1a1bb141a7bbb152f04a80d254c7d3b0853e07ef0
3c3cee50db58610d6292c0f1c6ef8f40d519cf814a17ad7a6dada0194e0f3388
1c163c65c9c41543f8941a29597df12521b512988deb9b389938475e9d46beb1
dfd6ed04039241b2bf6985e4810043386acf78249d55a3ab4a758c73b539c5bf
26b3be5bb284467b876c6fc017b9a8e7b7c99dd667c82aeac71e2cbd0f7027ed
9ebee44cdf471a2b69c261d3ff33d6be7bd07f755061311e3ceb8590b54369c3
5e75b2121f0a0419871b8dfdcdd276bb98d2d2f19adb248a7732e1dc127d4e71
8f07652a83851ae8be7dd1371b82dc5ef035e74954f7f0c2ed73e85fe6b554c6
70365b7e7cb7451145d67b2b96721ac09ae6794d592b5a9d1dec808d322b53b5
c14b06a3a76dc9d5673c5e98d318d5906c407869bec5ae0a66c0b8635fd61531
626b97523ea1c89f3337be39efaa901c3a39d26bc108cc0c5d9e2eaffb2b79b4
d35afbada1b1ae2f895e400e0a8cf05836b4ac916c4f1a781930a9324bfc37c0
d383cd06a306d385f79adce125d2816d81e1a067c160ae62270f0b2b8183f1d2
e33388664324a90a21ad9902ecb1ba409f2a888b23d61b1a32ad30d5ae3beaa1
b7ec42faae4bbaedc15483e17176375dd38e15af6bbab3fa5cd8aaf94bd57102
SH256 hash:
b7ec42faae4bbaedc15483e17176375dd38e15af6bbab3fa5cd8aaf94bd57102
MD5 hash:
6adb9139dad4f645580123d20c5b44ab
SHA1 hash:
3ca0a773d8ca87c1db116558602989979b4843ab
Link:
https://www.unpac.me/results/aaf53e5f-dd1e-4142-a43b-c69757c68cae/
Malware family:
STOP
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b7ec42faae4b/report/overview.html
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/b7ec42faae4bbaedc15483e17176375dd38e15af6bbab3fa5cd8aaf94bd57102

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:MALWARE_Win_STOP
Create hunting rule
Author:ditekSHen
Description:Detects STOP ransomware
Rule name:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
Rule name:SUSP_XORed_URL_in_EXE
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:SUSP_XORed_URL_in_EXE_RID2E46
Create hunting rule
Author:Florian Roth
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:Windows_Ransomware_Stop_1e8d48ff
Create hunting rule
Author:Elastic Security
Rule name:win_stop_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.stop.

File information

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

Comments