MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b9aa55e756e41d1960df08829e9bc1b9a40ccfb9f7c314cfc4d4a82e3d66c74a. 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: 10


Intelligence 10 IOCs 1 YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b9aa55e756e41d1960df08829e9bc1b9a40ccfb9f7c314cfc4d4a82e3d66c74a
SHA3-384 hash: efff0c1d26b19ee52a00b040d452d30c102654ed0cecb2d7d7717e1bf0737e3f4fdab79a4e73125ce5ff31a16f6422e3
SHA1 hash: dfea588cb1c020db2c67b013004594e7ad68dee7
MD5 hash: 87c86c727e5f7488023ec36148f69a1e
humanhash: blossom-fix-delaware-equal
File name:87c86c727e5f7488023ec36148f69a1e.exe
Download: download sample
Signature Stop
Create hunting rule
File size:888'832 bytes
First seen:2021-05-29 08:20:35 UTC
Last seen:2021-05-29 08:47:42 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash c29b629ef8f14dbd83a17edb08d2aa9b (2 x RaccoonStealer, 1 x Stop)
ssdeep 12288:OTbaWq0DsfQeIURmeW5v5vE1+8Hn4/J0FyIMEJrS36BPA4ZmqpR8oYxIBVMLdFTC:O1q0EIURmeUBEgD/yf06tAWRpYWYbC
Threatray 208 similar samples on MalwareBazaar
TLSH F215F130BAE1C134E0F655BEC5BA696D9C393DA3572401CB52C53AEE2A385E3AC31717
Reporter abuse_ch
Tags:exe Stop


Avatar
abuse_ch
Stop C2:
http://34.105.230.174/

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
http://34.105.230.174/ https://threatfox.abuse.ch/ioc/66374/

Intelligence

File Origin
# of uploads :
2
# of downloads :
305
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
87c86c727e5f7488023ec36148f69a1e.exe
Verdict:
Suspicious activity
Analysis date:
2021-05-29 08:22:45 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/c9ed9a3c-31ce-4748-8242-31f3d66306d3

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/163157/
Detection(s):
SecuriteInfo.com.W32.AIDetect.malware2.15887.20562.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Unauthorized injection to a recently created process
DNS request
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
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
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.
Result
Threat name:
Djvu Raccoon
Create hunting rule
Detection:
malicious
Classification:
rans.spre.troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/794221
Signature
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
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
Infects executable files (exe, dll, sys, html)
Injects a PE file into a foreign processes
Machine Learning detection for sample
Modifies existing user documents (likely ransomware behavior)
Modifies the hosts file
Multi AV Scanner detection for domain / URL
Mutes Antivirus updates and installments via hosts file black listing
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Suspicious powershell command line found
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 steal Mail credentials (via file access)
Writes many files with high entropy
Yara detected Djvu Ransomware
Yara detected Raccoon Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 426617 Sample: Xg2syEGW4B.exe Startdate: 29/05/2021 Architecture: WINDOWS Score: 100 111 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->111 113 Multi AV Scanner detection for domain / URL 2->113 115 Found malware configuration 2->115 117 7 other signatures 2->117 12 Xg2syEGW4B.exe 2->12         started        15 Xg2syEGW4B.exe 2->15         started        17 Xg2syEGW4B.exe 2->17         started        19 Xg2syEGW4B.exe 2->19         started        process3 signatures4 143 Detected unpacking (changes PE section rights) 12->143 145 Detected unpacking (overwrites its own PE header) 12->145 147 Contains functionality to inject code into remote processes 12->147 21 Xg2syEGW4B.exe 1 16 12->21         started        149 Writes many files with high entropy 15->149 151 Injects a PE file into a foreign processes 15->151 25 Xg2syEGW4B.exe 15->25         started        27 Xg2syEGW4B.exe 12 17->27         started        29 Xg2syEGW4B.exe 19->29         started        process5 dnsIp6 105 api.2ip.ua 77.123.139.190, 443, 49728, 49731 VOLIA-ASUA Ukraine 21->105 89 C:\Users\user\AppData\...\Xg2syEGW4B.exe, PE32 21->89 dropped 91 C:\Users\...\Xg2syEGW4B.exe:Zone.Identifier, ASCII 21->91 dropped 31 Xg2syEGW4B.exe 21->31         started        34 icacls.exe 21->34         started        107 asvb.top 25->107 93 C:\Users\user\Desktop\Xg2syEGW4B.exe, data 25->93 dropped file7 process8 signatures9 153 Injects a PE file into a foreign processes 31->153 36 Xg2syEGW4B.exe 1 27 31->36         started        process10 dnsIp11 101 asvb.top 35.235.74.220, 49732, 49733, 49734 GOOGLEUS United States 36->101 103 api.2ip.ua 36->103 81 C:\Users\user\AppData\Local\...\messages.json, DOS 36->81 dropped 83 C:\Users\user\AppData\...\updatewin2.exe, PE32 36->83 dropped 85 C:\Users\user\AppData\...\updatewin1.exe, PE32 36->85 dropped 87 197 other files (183 malicious) 36->87 dropped 125 Infects executable files (exe, dll, sys, html) 36->125 127 Modifies existing user documents (likely ransomware behavior) 36->127 41 5.exe 36->41         started        44 updatewin1.exe 2 36->44         started        46 updatewin2.exe 36->46         started        file12 signatures13 process14 file15 129 Detected unpacking (changes PE section rights) 41->129 131 Detected unpacking (overwrites its own PE header) 41->131 133 Writes many files with high entropy 41->133 49 5.exe 41->49         started        135 Suspicious powershell command line found 44->135 137 Bypasses PowerShell execution policy 44->137 54 updatewin1.exe 44->54         started        95 C:\Windows\System32\drivers\etc\hosts, ASCII 46->95 dropped 139 Mutes Antivirus updates and installments via hosts file black listing 46->139 141 Modifies the hosts file 46->141 signatures16 process17 dnsIp18 97 tttttt.me 95.216.186.40, 443, 49743 HETZNER-ASDE Germany 49->97 99 34.105.230.174, 49749, 80 GOOGLEUS United States 49->99 71 C:\Users\user\AppData\...\qMyLvZH3xPZ.zip, Zip 49->71 dropped 73 C:\Users\user\AppData\...\pY4zE3fX7h.zip, Zip 49->73 dropped 75 C:\Users\user\AppData\LocalLow\sqlite3.dll, PE32 49->75 dropped 79 58 other files (none is malicious) 49->79 dropped 119 Tries to steal Mail credentials (via file access) 49->119 121 Tries to harvest and steal browser information (history, passwords, etc) 49->121 56 cmd.exe 49->56         started        77 C:\Users\user\AppData\Local\script.ps1, ASCII 54->77 dropped 123 Suspicious powershell command line found 54->123 58 powershell.exe 54->58         started        61 powershell.exe 54->61         started        file19 signatures20 process21 dnsIp22 63 conhost.exe 56->63         started        65 timeout.exe 56->65         started        109 192.168.2.1 unknown unknown 58->109 67 conhost.exe 58->67         started        69 conhost.exe 61->69         started        process23
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b9aa55e756e41d1960df08829e9bc1b9a40ccfb9f7c314cfc4d4a82e3d66c74a/
Threat name:
Win32.Trojan.Hynamer
Create hunting rule
Status:
Malicious
First seen:
2021-05-29 08:21:07 UTC
AV detection:
13 of 47 (27.66%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xgvflz2w4qorsyg7bcbj5g6bxgsazt5z67brjt6e2suc4plgy5fa._file
Verdict:
malicious
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+ 198 additional samples on MalwareBazaar
Result
Malware family:
raccoon
Create hunting rule
Score:
  10/10
Tags:
family:raccoon botnet:1d76a465540f6a904ac9f1310fe3a3824b5b4549 discovery evasion persistence ransomware spyware stealer
Link:
https://tria.ge/reports/210529-cbkh9z63rx/
Behaviour
Delays execution with timeout.exe
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
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 local email clients
Reads user/profile data of web browsers
Disables Task Manager via registry modification
Downloads MZ/PE file
Drops file in Drivers directory
Executes dropped EXE
Modifies extensions of user files
Deletes Windows Defender Definitions
Raccoon
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/b9aa55e756e41d1960df08829e9bc1b9a40ccfb9f7c314cfc4d4a82e3d66c74a

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.

Web download

Stop

Executable exe b9aa55e756e41d1960df08829e9bc1b9a40ccfb9f7c314cfc4d4a82e3d66c74a

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/163157/
  
URLhaus
https://urlhaus.abuse.ch/url/1256494/
  
Delivery method
Distributed via web download

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