MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7633b4acaf0a9b58ceb77197cd65aa1279b0eb0b47c503b263a0da486019f717. 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: 11


Intelligence 11 IOCs 1 YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7633b4acaf0a9b58ceb77197cd65aa1279b0eb0b47c503b263a0da486019f717
SHA3-384 hash: eba07e633fbbd563705716ac4c245cbd98d30bba76a6b3f81e070b183f6b972a8a8976ccddceb509881f7a3cff59786d
SHA1 hash: 312da86edc860c2779a77e2f3dfce70e3d4d8704
MD5 hash: a51a47dc9871c874291574368331ed76
humanhash: eight-mobile-bravo-six
File name:a51a47dc9871c874291574368331ed76.exe
Download: download sample
Signature Stop
Create hunting rule
File size:889'344 bytes
First seen:2021-05-29 07:01:02 UTC
Last seen:2021-05-29 07:53:44 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 306d2c653e9f2457b44a38149955df00 (4 x Stop, 1 x DanaBot, 1 x ArkeiStealer)
ssdeep 12288:nUbavq04sZgKS+UAFd7pg2ktbT0XoxRSu/ZH2dNW/cmk8MqDiPUEweWluWbBkked:nTq0dJFfHk9PpucJMqDivDWllrK
Threatray 204 similar samples on MalwareBazaar
TLSH 1415F130EAA1C134F0F615FEC9699A6DAD2A7EA3572410CB53C436EE6A345D3AC30747
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 :
306
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a51a47dc9871c874291574368331ed76.exe
Verdict:
Suspicious activity
Analysis date:
2021-05-29 07:02:44 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/dfa08b15-da39-46fd-8f31-87d3e71b273a

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/163134/
Detection(s):
SecuriteInfo.com.W32.AIDetect.malware2.677.18320.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
Sending an HTTP GET request
Creating a process from 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/794195
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
Multi AV Scanner detection for submitted file
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: 426591 Sample: imzOuz2at4.exe Startdate: 29/05/2021 Architecture: WINDOWS Score: 100 108 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->108 110 Multi AV Scanner detection for domain / URL 2->110 112 Found malware configuration 2->112 114 8 other signatures 2->114 12 imzOuz2at4.exe 2->12         started        15 imzOuz2at4.exe 2->15         started        17 imzOuz2at4.exe 2->17         started        19 imzOuz2at4.exe 2->19         started        process3 signatures4 142 Detected unpacking (changes PE section rights) 12->142 144 Detected unpacking (overwrites its own PE header) 12->144 146 Contains functionality to inject code into remote processes 12->146 21 imzOuz2at4.exe 1 16 12->21         started        148 Writes many files with high entropy 15->148 150 Injects a PE file into a foreign processes 15->150 25 imzOuz2at4.exe 15->25         started        27 imzOuz2at4.exe 17->27         started        29 imzOuz2at4.exe 19->29         started        process5 dnsIp6 104 api.2ip.ua 77.123.139.190, 443, 49718, 49721 VOLIA-ASUA Ukraine 21->104 88 C:\Users\user\AppData\...\imzOuz2at4.exe, PE32 21->88 dropped 90 C:\Users\...\imzOuz2at4.exe:Zone.Identifier, ASCII 21->90 dropped 31 imzOuz2at4.exe 21->31         started        34 icacls.exe 21->34         started        106 asvb.top 25->106 92 C:\Users\user\Desktop\imzOuz2at4.exe, data 25->92 dropped file7 process8 signatures9 152 Injects a PE file into a foreign processes 31->152 36 imzOuz2at4.exe 1 27 31->36         started        process10 dnsIp11 100 asvb.top 35.235.74.220, 49722, 49723, 49724 GOOGLEUS United States 36->100 102 api.2ip.ua 36->102 80 C:\Users\user\AppData\...\updatewin2.exe, PE32 36->80 dropped 82 C:\Users\user\AppData\...\updatewin1.exe, PE32 36->82 dropped 84 C:\Users\user\AppData\Local\...\5.exe, PE32 36->84 dropped 86 186 other files (174 malicious) 36->86 dropped 122 Infects executable files (exe, dll, sys, html) 36->122 124 Modifies existing user documents (likely ransomware behavior) 36->124 41 5.exe 36->41         started        44 updatewin1.exe 2 36->44         started        46 updatewin2.exe 36->46         started        file12 signatures13 process14 file15 126 Detected unpacking (changes PE section rights) 41->126 128 Detected unpacking (overwrites its own PE header) 41->128 130 Writes many files with high entropy 41->130 132 Injects a PE file into a foreign processes 41->132 49 5.exe 41->49         started        134 Suspicious powershell command line found 44->134 136 Bypasses PowerShell execution policy 44->136 54 updatewin1.exe 44->54         started        94 C:\Windows\System32\drivers\etc\hosts, ASCII 46->94 dropped 138 Mutes Antivirus updates and installments via hosts file black listing 46->138 140 Modifies the hosts file 46->140 signatures16 process17 dnsIp18 96 tttttt.me 95.216.186.40, 443, 49733 HETZNER-ASDE Germany 49->96 98 34.105.230.174, 49734, 80 GOOGLEUS United States 49->98 70 C:\Users\user\AppData\...\pY4zE3fX7h.zip, Zip 49->70 dropped 72 C:\Users\user\AppData\...\HMLvFJca45K.zip, Zip 49->72 dropped 74 C:\Users\user\AppData\LocalLow\sqlite3.dll, PE32 49->74 dropped 78 58 other files (none is malicious) 49->78 dropped 116 Tries to steal Mail credentials (via file access) 49->116 118 Tries to harvest and steal browser information (history, passwords, etc) 49->118 56 cmd.exe 49->56         started        76 C:\Users\user\AppData\Local\script.ps1, ASCII 54->76 dropped 120 Suspicious powershell command line found 54->120 58 powershell.exe 54->58         started        60 powershell.exe 54->60         started        file19 signatures20 process21 process22 62 conhost.exe 56->62         started        64 timeout.exe 56->64         started        66 conhost.exe 58->66         started        68 conhost.exe 60->68         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7633b4acaf0a9b58ceb77197cd65aa1279b0eb0b47c503b263a0da486019f717/
Threat name:
Win32.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2021-05-29 07:01:08 UTC
AV detection:
19 of 47 (40.43%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=oyz3jlfpbknvrtvxogl42znkcj43b2yli7cqhmtdudneqyaz64lq._file
Verdict:
malicious
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+ 194 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-fehf2sv4da/
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/7633b4acaf0a9b58ceb77197cd65aa1279b0eb0b47c503b263a0da486019f717

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:Email_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Email in files like avemaria
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_Messaging_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:MALWARE_Win_Raccoon
Create hunting rule
Author:ditekSHen
Description:Detects Raccoon/Racealer infostealer
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:win_raccoon_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information

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

Web download

Stop

Executable exe 7633b4acaf0a9b58ceb77197cd65aa1279b0eb0b47c503b263a0da486019f717

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/163134/
  
URLhaus
https://urlhaus.abuse.ch/url/1256494/
  
Delivery method
Distributed via web download

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