MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b3ad13f776f60df12ef17cf20772f823a78941ba1d7ccd7e32d290ac7b3f9e7a. 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


Stop


Vendor detections: 13


Intelligence 13 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b3ad13f776f60df12ef17cf20772f823a78941ba1d7ccd7e32d290ac7b3f9e7a
SHA3-384 hash: bb21201281b801883f25638c86c05f610d58da914c0e7f5ab5671b8640bafb758c95ae64e45d2c9cdef3a3cf9469bcf2
SHA1 hash: aac532018ca8c9f9d6f34de4e82f9f45d00ca8f5
MD5 hash: 1722ac41d4716258e295807cda56d9bd
humanhash: massachusetts-zulu-april-london
File name:b3ad13f776f60df12ef17cf20772f823a78941ba1d7ccd7e32d290ac7b3f9e7a
Download: download sample
Signature Stop
Create hunting rule
File size:799'744 bytes
First seen:2021-09-03 09:05:43 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 7bb5fa0b8cc629bb852d76174c2fb878 (4 x Smoke Loader, 2 x ArkeiStealer, 1 x RaccoonStealer)
ssdeep 24576:8iIXTR4IDHqbannC1+RTJJvJnDm0JwO3NP/B:kBDIannCQR9Jhn1J7nB
Threatray 467 similar samples on MalwareBazaar
TLSH T140050121B6C1C835F7B712F445B9927D642CB9716F6850CB62C636FE6A342E89C3036B
dhash icon d824e790c4e72158 (30 x RaccoonStealer, 18 x RedLineStealer, 16 x Smoke Loader)
Reporter JAMESWT_WT
Tags:exe Stop

Intelligence

File Origin
# of uploads :
1
# of downloads :
147
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b3ad13f776f60df12ef17cf20772f823a78941ba1d7ccd7e32d290ac7b3f9e7a
Verdict:
Suspicious activity
Analysis date:
2021-09-03 09:39:39 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/7667b7a9-8769-4619-ab88-6dd71151f430

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
STOP
Create hunting rule
Link:
https://www.capesandbox.com/analysis/185104/
Detection(s):
Win.Malware.Generic-9886820-0
Create hunting rule

Win.Malware.Generic-9886944-0
Create hunting rule

Win.Malware.Generic-9887080-0
Create hunting rule

Win.Malware.Generic-9887161-0
Create hunting rule

Win.Malware.Generic-9887162-0
Create hunting rule

Win.Malware.Generic-9887168-0
Create hunting rule

Win.Malware.Generic-9887556-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
DNS request
Connection attempt
Sending a custom TCP request
Creating a file
Launching a process
Creating a process with a hidden window
Adding an access-denied ACE
Sending a UDP request
Deleting a recently created file
Sending an HTTP GET request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Query of malicious DNS domain
Enabling autorun by creating a file
Malware family:
STOP Ransomware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a4049b93-784c-4a48-ae99-97e23d16fdaf
Result
Threat name:
Djvu Vidar
Create hunting rule
Detection:
malicious
Classification:
rans.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/844744
Signature
Antivirus detection for URL or domain
Contains functionality to inject code into remote processes
Detected unpacking (changes PE section rights)
Found ransom note / readme
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Modifies existing user documents (likely ransomware behavior)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes many files with high entropy
Yara detected Djvu Ransomware
Yara detected Vidar
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 477174 Sample: 1gBHYRm1mW Startdate: 03/09/2021 Architecture: WINDOWS Score: 100 38 49.12.198.69, 49708, 80 HETZNER-ASDE Germany 2->38 40 romkaxarit.tumblr.com 74.114.154.18, 443, 49707 AUTOMATTICUS Canada 2->40 42 api.2ip.ua 2->42 56 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->56 58 Antivirus detection for URL or domain 2->58 60 Multi AV Scanner detection for dropped file 2->60 62 8 other signatures 2->62 9 1gBHYRm1mW.exe 2->9         started        12 1gBHYRm1mW.exe 2->12         started        signatures3 process4 signatures5 64 Detected unpacking (changes PE section rights) 9->64 66 Contains functionality to inject code into remote processes 9->66 68 Writes many files with high entropy 9->68 14 1gBHYRm1mW.exe 1 16 9->14         started        70 Injects a PE file into a foreign processes 12->70 process6 dnsIp7 50 api.2ip.ua 77.123.139.190, 443, 49700, 49702 VOLIA-ASUA Ukraine 14->50 52 192.168.2.1 unknown unknown 14->52 36 C:\Users\...\1gBHYRm1mW.exe:Zone.Identifier, ASCII 14->36 dropped 18 1gBHYRm1mW.exe 14->18         started        21 icacls.exe 14->21         started        file8 process9 signatures10 54 Injects a PE file into a foreign processes 18->54 23 1gBHYRm1mW.exe 1 20 18->23         started        process11 dnsIp12 44 securebiz.org 178.30.64.85, 49703, 80 TELENOR-NEXTELTelenorNorgeASNO Sweden 23->44 46 astdg.top 23->46 48 api.2ip.ua 23->48 28 C:\...\ImagingProvider.dll.mui.hoop (copy), DOS 23->28 dropped 30 C:\Users\user\...\V01res00001.jrs.hoop (copy), DOS 23->30 dropped 32 C:\Users\user\...\UserCache.bin.hoop (copy), DOS 23->32 dropped 34 392 other files (383 malicious) 23->34 dropped 72 Modifies existing user documents (likely ransomware behavior) 23->72 file13 signatures14
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b3ad13f776f60df12ef17cf20772f823a78941ba1d7ccd7e32d290ac7b3f9e7a/
Threat name:
Win32.Ransomware.StopCrypt
Create hunting rule
Status:
Malicious
First seen:
2021-08-19 14:22:43 UTC
File Type:
PE (Exe)
Extracted files:
32
AV detection:
34 of 43 (79.07%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wowrh53w6yg7clxrptzao4xyeotysqn2dv6m27rs2kiky6z7tz5a._file
Verdict:
malicious
Similar samples:
0c1571e0f22ecc1c3ed2b80ee90df329d820e287ac0be834aa905726ea96887e
Stop
5651c726a433d942eb9cdbe74c6631178fa3e243e0953e0a55f54f1752e05682
Stop
5d232ce70bfdc3344ad9c117da898e5d72ea5a5ff0704933735abb186714c9f4
Stop
9b87dcaaf50d205d4eb5217c857e52d0afa4790716a793f5f6e563a955f632b1
Stop
adc2c80f4a9f969a641f2674c94bd576420b34d338b12ba5b4cab09e6c51a466
Stop
dc6f024b81983ce22d883ccc346b3888d984e360196b3e472c1cce3f79b70fa0
Stop
+ 457 additional samples on MalwareBazaar
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:djvu family:vidar botnet:517 discovery persistence ransomware spyware stealer suricata
Link:
https://tria.ge/reports/210903-k2rnragacp/
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Kills process with taskkill
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
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
Loads dropped DLL
Modifies file permissions
Reads user/profile data of web browsers
Downloads MZ/PE file
Executes dropped EXE
Vidar Stealer
Detected Djvu ransomeware
Djvu Ransomware
Vidar
suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
Malware Config
C2 Extraction:
https://romkaxarit.tumblr.com/
Unpacked files
SH256 hash:
4580e62c1de80a1dc7e0117123e27ee037497748c4d69cc3f741d2a7e2a904cc
MD5 hash:
32dcd958a4932403c46da0764b69378b
SHA1 hash:
82e34d8dd50a9cca0224b36d05d414a47f4eb68b
Detections:
win_stop_auto
Create hunting rule
Link:
https://www.unpac.me/results/fdbd9cd7-8786-4fa0-b583-bd0030c585ea/
Parent samples :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 hash:
b3ad13f776f60df12ef17cf20772f823a78941ba1d7ccd7e32d290ac7b3f9e7a
MD5 hash:
1722ac41d4716258e295807cda56d9bd
SHA1 hash:
aac532018ca8c9f9d6f34de4e82f9f45d00ca8f5
Link:
https://www.unpac.me/results/fdbd9cd7-8786-4fa0-b583-bd0030c585ea/
Malware family:
Djvu
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/b3ad13f776f6/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/b3ad13f776f60df12ef17cf20772f823a78941ba1d7ccd7e32d290ac7b3f9e7a

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:SUSP_XORed_URL_in_EXE
Create hunting rule
Author:Florian Roth
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834

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/185104/

Comments