MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 64a938fc41671d20542047b3399593bdb0583bbb581578280225b7fa1b1840ac. 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: 16


Intelligence 16 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 64a938fc41671d20542047b3399593bdb0583bbb581578280225b7fa1b1840ac
SHA3-384 hash: 84a3849376f767573cd993b54399b5db829f93fdc109214f682d3e7d1c154c626172421ec87a7af3f47a745456a54dd8
SHA1 hash: 1f85100d5813e0209a76dd12e90dce777a391c38
MD5 hash: 5b5334084cac37a6c8a93354249e347a
humanhash: batman-alanine-lake-maryland
File name:5b5334084cac37a6c8a93354249e347a.exe
Download: download sample
Signature Stop
Create hunting rule
File size:716'288 bytes
First seen:2021-11-02 07:49:58 UTC
Last seen:2021-11-02 09:30:27 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash ed38ab5cc3f4fd753cddd79c6cfea0fc (1 x Stop, 1 x Loki)
ssdeep 12288:UrcFbqqBx8NYbSR4nE3d33PNvzIQ+3ux4jWtxuBtjtG48nnP:Nbq02NYbkhPNMX3ux644BtjtG48n
Threatray 805 similar samples on MalwareBazaar
TLSH T15EE412127651C871D3A212F058348AE52E3BB8325D3B589F77ED7F2A1EA32D06C217D6
File icon (PE):PE icon
dhash icon 480c1c4c4f594b14 (172 x Smoke Loader, 134 x RedLineStealer, 98 x Amadey)
Reporter abuse_ch
Tags:exe Ransomware Stop

Intelligence

File Origin
# of uploads :
2
# of downloads :
284
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
5b5334084cac37a6c8a93354249e347a.exe
Verdict:
Suspicious activity
Analysis date:
2021-11-02 08:10:24 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/ebe206a2-2e9c-408b-8d16-6f7e0f08964d

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/201336/
Detection(s):
SecuriteInfo.com.Trojan.Siggen15.33569.23481.30413.UNOFFICIAL
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
Connection attempt to an infection source
Sending an HTTP GET request to an infection source
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Query of malicious DNS domain
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware packed
Link:
https://www.filescan.io/uploads/6180edb3bf51178dbe480604/reports/cb39d0f3-1c26-43b8-966f-c611d0839fa8/overview
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/b272ab2e-1bb6-4122-b940-2681bb5a71fe
Result
Threat name:
Djvu
Create hunting rule
Detection:
malicious
Classification:
rans.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/881037
Signature
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Found malware configuration
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
Yara detected Djvu Ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 513470 Sample: LJFbM8rUqF.exe Startdate: 02/11/2021 Architecture: WINDOWS Score: 100 54 Multi AV Scanner detection for domain / URL 2->54 56 Found malware configuration 2->56 58 Multi AV Scanner detection for submitted file 2->58 60 4 other signatures 2->60 8 LJFbM8rUqF.exe 2->8         started        11 LJFbM8rUqF.exe 2->11         started        13 LJFbM8rUqF.exe 2->13         started        15 LJFbM8rUqF.exe 2->15         started        process3 signatures4 64 Injects a PE file into a foreign processes 8->64 17 LJFbM8rUqF.exe 1 17 8->17         started        66 Contains functionality to inject code into remote processes 11->66 22 LJFbM8rUqF.exe 1 17 11->22         started        68 Machine Learning detection for dropped file 13->68 24 LJFbM8rUqF.exe 13 13->24         started        26 LJFbM8rUqF.exe 15->26         started        process5 dnsIp6 48 rlrz.org 17->48 36 C:\_readme.txt, ASCII 17->36 dropped 38 C:\Users\user\Desktop\...\BNAGMGSPLO.png, data 17->38 dropped 40 C:\Users\user\Desktop\...\SUAVTZKNFL.mp3, data 17->40 dropped 46 3 other malicious files 17->46 dropped 62 Modifies existing user documents (likely ransomware behavior) 17->62 50 api.2ip.ua 77.123.139.190, 443, 49719, 49726 VOLIA-ASUA Ukraine 22->50 42 C:\Users\user\AppData\...\LJFbM8rUqF.exe, PE32 22->42 dropped 44 C:\Users\...\LJFbM8rUqF.exe:Zone.Identifier, ASCII 22->44 dropped 28 LJFbM8rUqF.exe 22->28         started        31 icacls.exe 22->31         started        file7 signatures8 process9 signatures10 70 Injects a PE file into a foreign processes 28->70 33 LJFbM8rUqF.exe 13 28->33         started        process11 dnsIp12 52 api.2ip.ua 33->52
Detection:
vidar
Create hunting rule
Link:
https://mwdb.cert.pl/sample/64a938fc41671d20542047b3399593bdb0583bbb581578280225b7fa1b1840ac/
Threat name:
Win32.Trojan.Fragtor
Create hunting rule
Status:
Malicious
First seen:
2021-11-02 07:50:12 UTC
AV detection:
28 of 45 (62.22%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=msutr7cbm4osavbai6zttfmtxwyfqo53lakxqkacew37ugyyicwa._file
Verdict:
malicious
Similar samples:
43b31ea75f3c0666523aefc13e216a651e8e93feaeff1165cb35ed374365cdd6
Stop
4b3e6a191ab050a87aeeb8a650290c4e217e9508971beeb929417d13d89292e2
Stop
6aae67d87cd2ef23c4b9265c8e83db5142f00154e66e47b1e54219cea794682b
Stop
9afa91c839d958185548eccf40690eb7db7859a852ac06f3870a6165c287d6ba
Stop
aad6294207c2facfebf440fa5d52804422edbf9c9e9adb4a7aaff0310b1c5d11
Stop
f15e2ae6168ce22adfb50ee1838cfda69a046b13dc8a5a751379a71ceb76b650
Stop
+ 795 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/211102-jpazsshaam/
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Kills process with taskkill
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
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
Loads dropped DLL
Modifies file permissions
Reads user/profile data of web browsers
Downloads MZ/PE file
Executes dropped EXE
Vidar Stealer
Detected Djvu ransomware
Djvu Ransomware
Vidar
suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
Malware Config
C2 Extraction:
https://mas.to/@lilocc
Unpacked files
SH256 hash:
18b94c9c2fc9675197f1603729987ac1f0c845066114cdbe94e6e06206f800fc
MD5 hash:
bc01883a54b7a1bf0bfe936413446734
SHA1 hash:
ffaac76e75a74118f4e3043ab846c13863842017
Detections:
win_stop_auto
Create hunting rule
Link:
https://www.unpac.me/results/3e9b5c93-a16c-4f56-8bdb-eef6425d6a7d/
Parent samples :
e9a93d1ce4efc043eb8468247cc34a142043714f6e7c3b6a42d17e2e78e37869
79cf5abc8cdb8d94194260a529c1817d4fc6185e4c8f8a37265156be92b975fd
2056a6361358c8d5affd79a8129c75a87dca0940eea93a92db13f572c3c6501c
64a938fc41671d20542047b3399593bdb0583bbb581578280225b7fa1b1840ac
SH256 hash:
64a938fc41671d20542047b3399593bdb0583bbb581578280225b7fa1b1840ac
MD5 hash:
5b5334084cac37a6c8a93354249e347a
SHA1 hash:
1f85100d5813e0209a76dd12e90dce777a391c38
Link:
https://www.unpac.me/results/3e9b5c93-a16c-4f56-8bdb-eef6425d6a7d/
Malware family:
STOP
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/64a938fc4167/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/64a938fc41671d20542047b3399593bdb0583bbb581578280225b7fa1b1840ac

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:INDICATOR_SUSPICIOUS_EXE_SQLQuery_ConfidentialDataStore
Create hunting rule
Author:ditekSHen
Description:Detects executables containing SQL queries to confidential data stores. Observed in infostealers
Rule name:INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation
Create hunting rule
Author:ditekSHen
Description:Detects executables containing potential Windows Defender anti-emulation checks
Rule name:MALWARE_Win_STOP
Create hunting rule
Author:ditekSHen
Description:Detects STOP ransomware
Rule name:MALWARE_Win_Vidar
Create hunting rule
Author:ditekSHen
Description:Detects Vidar / ArkeiStealer
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
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:Vidar
Create hunting rule
Author:kevoreilly
Description:Vidar Payload
Rule name:win_stop_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.stop.
Rule name:XOREngine_Misc_XOR_Func
Create hunting rule
Author:smiller cc @florian @wesley idea on implementation with yara's built in XOR function
Description:Use with care, https://twitter.com/cyb3rops/status/1237042104406355968

File information

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

Web download

Stop

Executable exe 64a938fc41671d20542047b3399593bdb0583bbb581578280225b7fa1b1840ac

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/201336/
  
URLhaus
https://urlhaus.abuse.ch/url/1706197/
  
Delivery method
Distributed via web download

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