MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e5a536df45ce59beb16c30352f72f0d84af2f478b3fb1e090ff53741f946dfdc. 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: e5a536df45ce59beb16c30352f72f0d84af2f478b3fb1e090ff53741f946dfdc
SHA3-384 hash: 80218d81c8b0364f6ffc5dbe5fa82d4694a9d4e3b5ec009a6b24e753be5572fa3c470c321a9c58a9dda5f0aabd60c661
SHA1 hash: d881caafddf013d0788a25563b9c0d19506a2372
MD5 hash: f7e9fb27c418c0088adb45bbe14ae5b6
humanhash: sierra-pasta-johnny-december
File name:e5a536df45ce59beb16c30352f72f0d84af2f478b3fb1e090ff53741f946dfdc
Download: download sample
Signature Stop
Create hunting rule
File size:805'376 bytes
First seen:2021-09-06 06:40:21 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 6bf77a87eacba8ca39b56b6801584e4d (1 x Stop)
ssdeep 12288:TmuwoLtV31tNTkM6dX5vi12LhGNlY0SDTkLmg3Z9pU1SMFakiSmAZnK/7kNtoE8d:IoxVSgmTkSgJ9jdpSbeYnRJVIlJe5bb
Threatray 512 similar samples on MalwareBazaar
TLSH T10305F130AB81D035E4B365F84AB68378A93D7BB1AB3451CB93D527EE1A349E49C30747
dhash icon e8e8e8e8aa66a499 (51 x RaccoonStealer, 27 x ArkeiStealer, 22 x RedLineStealer)
Reporter JAMESWT_WT
Tags:exe Stop

Intelligence

File Origin
# of uploads :
1
# of downloads :
119
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
e5a536df45ce59beb16c30352f72f0d84af2f478b3fb1e090ff53741f946dfdc
Verdict:
Suspicious activity
Analysis date:
2021-09-06 06:43:53 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/056b8e26-00c5-4044-b8b7-89d43030ba8d

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/185557/
Detection(s):
Win.Packed.Generic-9888857-0
Create hunting rule

Win.Packed.Generic-9888863-0
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
Deleting a recently created file
Sending an HTTP GET request
Sending a UDP 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/912010ae-3c5a-4778-9112-31352591c80a
Result
Threat name:
Djvu Vidar
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/845856
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 domain / URL
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)
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
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: 478292 Sample: byzi3wB9Py Startdate: 06/09/2021 Architecture: WINDOWS Score: 100 62 192.168.2.1 unknown unknown 2->62 64 api.2ip.ua 2->64 80 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->80 82 Multi AV Scanner detection for domain / URL 2->82 84 Antivirus detection for URL or domain 2->84 86 7 other signatures 2->86 11 byzi3wB9Py.exe 2->11         started        14 byzi3wB9Py.exe 2->14         started        16 byzi3wB9Py.exe 2->16         started        signatures3 process4 signatures5 102 Detected unpacking (changes PE section rights) 11->102 104 Contains functionality to inject code into remote processes 11->104 106 Writes many files with high entropy 11->106 18 byzi3wB9Py.exe 1 16 11->18         started        108 Injects a PE file into a foreign processes 14->108 22 byzi3wB9Py.exe 12 14->22         started        24 byzi3wB9Py.exe 16->24         started        process6 dnsIp7 66 api.2ip.ua 77.123.139.190, 443, 49723, 49724 VOLIA-ASUA Ukraine 18->66 52 C:\Users\...\byzi3wB9Py.exe:Zone.Identifier, ASCII 18->52 dropped 26 byzi3wB9Py.exe 18->26         started        29 icacls.exe 18->29         started        file8 process9 signatures10 100 Injects a PE file into a foreign processes 26->100 31 byzi3wB9Py.exe 1 20 26->31         started        process11 dnsIp12 72 securebiz.org 190.117.75.91, 49725, 80 AmericaMovilPeruSACPE Peru 31->72 74 astdg.top 31->74 76 api.2ip.ua 31->76 44 C:\Users\user\...\USS.jtx.orkf (copy), DOS 31->44 dropped 46 C:\Users\user\...\UnistackCircular.etl, COM 31->46 dropped 48 C:\Users\...\BrowserMetrics-5F7433FB-4FC.pma, DOS 31->48 dropped 50 375 other files (365 malicious) 31->50 dropped 78 Modifies existing user documents (likely ransomware behavior) 31->78 36 build2.exe 31->36         started        file13 signatures14 process15 signatures16 88 Detected unpacking (changes PE section rights) 36->88 90 Machine Learning detection for dropped file 36->90 92 Injects a PE file into a foreign processes 36->92 39 build2.exe 36->39         started        process17 dnsIp18 68 49.12.198.69, 49729, 80 HETZNER-ASDE Germany 39->68 70 romkaxarit.tumblr.com 74.114.154.18, 443, 49728 AUTOMATTICUS Canada 39->70 54 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 39->54 dropped 56 C:\Users\user\AppData\...\vcruntime140[1].dll, PE32 39->56 dropped 58 C:\Users\user\AppData\...\mozglue[1].dll, PE32 39->58 dropped 60 9 other files (none is malicious) 39->60 dropped 94 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 39->94 96 Tries to harvest and steal browser information (history, passwords, etc) 39->96 98 Tries to steal Crypto Currency Wallets 39->98 file19 signatures20
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e5a536df45ce59beb16c30352f72f0d84af2f478b3fb1e090ff53741f946dfdc/
Threat name:
Win32.Ransomware.StopCrypt
Create hunting rule
Status:
Malicious
First seen:
2021-09-02 14:29:07 UTC
File Type:
PE (Exe)
Extracted files:
12
AV detection:
37 of 43 (86.05%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=4wstnx2fzzm35mlmga2s64xq3bfpf5dywp5r4cip6u3ud6kg37oa._file
Verdict:
malicious
Similar samples:
0dbb33b5aaa39d7e5b04eb88bbc5e8602e2ebfa84b3cb26ea4c70d6ef4c32b1e
Stop
35be1a97d304ab4b045cb2e608c22dd2c7efb4df1e86cdd4e0b780bdf1c21838
Stop
3e7ccc99be60620bd1ed12ac34f2bb76dfba737ec91fc88199a20cfc2f320139
Stop
74251d8c7a300c4bd22fbe4807a1d5ace6303c95d44196652cdb728185a9ae3b
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80b466356d8bf0d46cdf2b592edf646050e9617902a5efdb3a4a3ceba8c6856b
Stop
9dfe173d27af62da7c78754527de5dd892bab94b7cd1658e087c7e64f86211ba
Stop
+ 502 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/210906-hfsmtadfhr/
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:
e262e9ebcd2063c95672d7903c2d737903043c646211e2c65581b24fe06bac77
MD5 hash:
c64898970ef5c32165ea1a4b5a6a470a
SHA1 hash:
31469dd38f4741e7cb883d5f683a1a26b497d441
Detections:
win_stop_auto
Create hunting rule
Link:
https://www.unpac.me/results/d3f5d576-95c1-44f1-ae04-dfd058499925/
Parent samples :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 hash:
e5a536df45ce59beb16c30352f72f0d84af2f478b3fb1e090ff53741f946dfdc
MD5 hash:
f7e9fb27c418c0088adb45bbe14ae5b6
SHA1 hash:
d881caafddf013d0788a25563b9c0d19506a2372
Link:
https://www.unpac.me/results/d3f5d576-95c1-44f1-ae04-dfd058499925/
Malware family:
Djvu
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/e5a536df45ce/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/e5a536df45ce59beb16c30352f72f0d84af2f478b3fb1e090ff53741f946dfdc

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/185557/

Comments