MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 28987da061d42bee399b3cafd876c34826eea824758ae23ead826fe971cb978f. 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: 12


Intelligence 12 IOCs 1 YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 28987da061d42bee399b3cafd876c34826eea824758ae23ead826fe971cb978f
SHA3-384 hash: 9bc4a6e8d6c20c6afe483d080592c92e29f70547887d6ee8ff820277f99dc156e51a3c0c5b14912ef92489e2a73b8ee2
SHA1 hash: 08722078b6c7a6c77b443f0abc73804173f820cd
MD5 hash: b58cc7774b867c1a6005c5e0aa0ffb1a
humanhash: butter-berlin-island-asparagus
File name:b58cc7774b867c1a6005c5e0aa0ffb1a.exe
Download: download sample
Signature Stop
Create hunting rule
File size:700'416 bytes
First seen:2021-09-27 07:12:24 UTC
Last seen:2021-09-27 08:20:15 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 3cd0350cb20713093b4eb51a8785dabd (3 x ArkeiStealer, 2 x RaccoonStealer, 2 x Stop)
ssdeep 12288:Rdx/Siqg5EpbGjSktn0yP+FWvFSlNdabceLAQwTrb+HtX+Y:RdSCEwGktnrP+SslgNLAQwyHtO
Threatray 727 similar samples on MalwareBazaar
TLSH T18CE412DF3090D472F560A23BE1219E30197978CB7A41DE6B3B58679B2F712E0867631B
File icon (PE):PE icon
dhash icon fcfcb4f4d4d4d8c8 (8 x RedLineStealer, 6 x RaccoonStealer, 4 x ArkeiStealer)
Reporter abuse_ch
Tags:exe Stop


Avatar
abuse_ch
Stop C2:
http://securebiz.org/fhsgtsspen6/get.php

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
http://securebiz.org/fhsgtsspen6/get.php https://threatfox.abuse.ch/ioc/226936/

Intelligence

File Origin
# of uploads :
2
# of downloads :
149
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b58cc7774b867c1a6005c5e0aa0ffb1a.exe
Verdict:
Suspicious activity
Analysis date:
2021-09-27 07:12:54 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/5e665c51-6088-449f-80cd-28829b807d1e

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/191906/
Detection(s):
SecuriteInfo.com.W32.AIDetect.malware1.26930.2832.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
Sending an HTTP GET request
Connection attempt to an infection source
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Query of malicious DNS domain
Sending an HTTP GET request to an infection source
Malware family:
STOP Ransomware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/32b9c43b-4267-437b-af7f-2778cc2edc4e
Result
Threat name:
Clipboard Hijacker Djvu
Create hunting rule
Detection:
malicious
Classification:
rans.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/858699
Signature
Contains functionality to inject code into remote processes
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
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 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)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes many files with high entropy
Yara detected Clipboard Hijacker
Yara detected Djvu Ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 491130 Sample: dEYSAsBcE8.exe Startdate: 27/09/2021 Architecture: WINDOWS Score: 100 93 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->93 95 Multi AV Scanner detection for domain / URL 2->95 97 Multi AV Scanner detection for dropped file 2->97 99 7 other signatures 2->99 12 dEYSAsBcE8.exe 2->12         started        15 dEYSAsBcE8.exe 2->15         started        17 mstsca.exe 2->17         started        19 4 other processes 2->19 process3 signatures4 103 Detected unpacking (changes PE section rights) 12->103 105 Detected unpacking (overwrites its own PE header) 12->105 107 Contains functionality to inject code into remote processes 12->107 109 Writes many files with high entropy 12->109 21 dEYSAsBcE8.exe 1 17 12->21         started        111 Injects a PE file into a foreign processes 15->111 25 dEYSAsBcE8.exe 13 15->25         started        27 mstsca.exe 17->27         started        29 dEYSAsBcE8.exe 19->29         started        31 dEYSAsBcE8.exe 19->31         started        33 mstsca.exe 19->33         started        process5 dnsIp6 73 api.2ip.ua 77.123.139.190, 443, 49749, 49750 VOLIA-ASUA Ukraine 21->73 61 C:\Users\user\AppData\...\dEYSAsBcE8.exe, PE32 21->61 dropped 63 C:\Users\...\dEYSAsBcE8.exe:Zone.Identifier, ASCII 21->63 dropped 35 dEYSAsBcE8.exe 21->35         started        38 icacls.exe 21->38         started        40 schtasks.exe 27->40         started        75 192.168.2.1 unknown unknown 29->75 77 securebiz.org 29->77 file7 process8 signatures9 101 Injects a PE file into a foreign processes 35->101 42 dEYSAsBcE8.exe 1 25 35->42         started        47 conhost.exe 40->47         started        process10 dnsIp11 79 znpst.top 183.78.205.92, 49751, 80 YOUNGDOONG-AS-KRLGHelloVisionCorpKR Korea Republic of 42->79 81 securebiz.org 210.92.250.133, 49752, 49754, 49756 LGDACOMLGDACOMCorporationKR Korea Republic of 42->81 83 api.2ip.ua 42->83 65 C:\Users\user\...\V01res00001.jrs.rigd (copy), DOS 42->65 dropped 67 C:\Users\user\...\TURABIAN.XSL.rigd (copy), DOS 42->67 dropped 69 C:\Users\user\...\SIST02.XSL.rigd (copy), COM 42->69 dropped 71 339 other files (332 malicious) 42->71 dropped 113 Modifies existing user documents (likely ransomware behavior) 42->113 49 build3.exe 42->49         started        file12 signatures13 process14 signatures15 85 Detected unpacking (changes PE section rights) 49->85 87 Detected unpacking (overwrites its own PE header) 49->87 89 Machine Learning detection for dropped file 49->89 91 Uses schtasks.exe or at.exe to add and modify task schedules 49->91 52 build3.exe 49->52         started        process16 file17 59 C:\Users\user\AppData\Roaming\...\mstsca.exe, PE32 52->59 dropped 55 schtasks.exe 52->55         started        process18 process19 57 conhost.exe 55->57         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/28987da061d42bee399b3cafd876c34826eea824758ae23ead826fe971cb978f/
Threat name:
Win32.Ransomware.StopCrypt
Create hunting rule
Status:
Malicious
First seen:
2021-09-27 07:13:06 UTC
AV detection:
16 of 45 (35.56%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=fcmh3idb2qv64om3hsx5q5wdjato5kbeowfoepvnqjx6s4ols6hq._file
Verdict:
malicious
Similar samples:
20ebe8ff1da6f2023a43b3e3cbe14479961699f9dec0324f72070fa2b275eaae
Stop
496b5885ff8f521c91ca037338e188ea0374bf86816d0c804d3010fd2f5fec38
Stop
9634e7bbda11d42ed7eda4f7cc1965dea16ab45877cb425d322e830cf63a0657
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9feb26b9550dbf46719374757468d95b6882c00fd3ca65a02e9edf2854e900a9
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b055016e0d82c57b58cd126f26b4b8f4dae1441f0019bdaa42452e815f128944
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bfbf6bb9393e511a06e90d432e7538059ae75f9f1525f0f503d1d0bec0d32124
Stop
e81e9dfe89a98449992b1ca9e4acb9905b606dc3de186b9de94241bde3b230be
Stop
e8bcd430d48c430ced6992340cbce21ffc1a4d8cc60e6255b76870d33a5ea6b9
Stop
ff9e059a789e94573fb32a918657d5c5c59b5395fab873cbcec7b1543435fe93
Stop
+ 717 additional samples on MalwareBazaar
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:djvu family:vidar discovery persistence ransomware spyware stealer
Link:
https://tria.ge/reports/210927-jx799sgaf5/
Behaviour
Checks processor information in registry
Creates scheduled task(s)
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 ransomware
Djvu Ransomware
Vidar
Unpacked files
SH256 hash:
5f2bb7899383d9e75afd1e4e6bb4b77281c35944598c865c2018563f662c00ef
MD5 hash:
1f4344483a27a452ef55e32870e05ed6
SHA1 hash:
032a3a8d46d823cd1405f2227df653178908f94a
Detections:
win_stop_auto
Create hunting rule
Link:
https://www.unpac.me/results/00d6aae9-c095-4390-b801-f17e8dee580b/
Parent samples :
55e262d517e470787760c984868f07d582f8d8efd9ff98db0870c48c9a51c23d
28987da061d42bee399b3cafd876c34826eea824758ae23ead826fe971cb978f
96888e3f86a786d67fe5d2df9f5d195721ec70de964fb1467a263eaa2a9c80bd
1662a370129d1175bb6064da3b8080158ebe848ab34e433c67e93d4f3481b148
5f1d4edb0181437d5c6e270977eec68d3daf4bd63edbc4c29e691573ca2ed9e6
d34b0333afa76522d268ba1886698f7f98550fa0da5cae603486127bae326c59
d58fb2c3a56ea6bce3e4d7979a1e6860db641e53a4821005ac4a58cf447ce876
795aa5cf33f918f0d642b2e47c67ef031e8297834be19030b7eb2c19700104a8
SH256 hash:
28987da061d42bee399b3cafd876c34826eea824758ae23ead826fe971cb978f
MD5 hash:
b58cc7774b867c1a6005c5e0aa0ffb1a
SHA1 hash:
08722078b6c7a6c77b443f0abc73804173f820cd
Link:
https://www.unpac.me/results/00d6aae9-c095-4390-b801-f17e8dee580b/
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/28987da061d42bee399b3cafd876c34826eea824758ae23ead826fe971cb978f

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
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: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.

Web download

Stop

Executable exe 28987da061d42bee399b3cafd876c34826eea824758ae23ead826fe971cb978f

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1645196/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/191906/

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