MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4bf23d6f5145191391a89a02336dfc640a5432327bf2582a91c52bbcd4410422. 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


Sage


Vendor detections: 8


Intelligence 8 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4bf23d6f5145191391a89a02336dfc640a5432327bf2582a91c52bbcd4410422
SHA3-384 hash: 6e5a264da5621300e955010fa66680aa1a552cb6551a34a727dcd21a07ec9cc8d2b1bb91468ff0cfe110bd90a76b9521
SHA1 hash: 2127d0aec4e2aa6db868921012cb824c702c3316
MD5 hash: 0b4f91b660e6c25d2e7953104183615a
humanhash: william-island-orange-kentucky
File name:4bf23d6f5145191391a89a02336dfc640a5432327bf2582a91c52bbcd4410422
Download: download sample
Signature Sage
Create hunting rule
File size:441'856 bytes
First seen:2020-07-29 07:20:52 UTC
Last seen:2020-07-29 07:53:13 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash c0a1f138d1ba75f1325200c059da3006 (2 x Sage)
ssdeep 6144:S3ZlJhIXg2Hpbu2Gp7cJPJJNyhMlQNiz2i9mxH8hCMoptJk7xBk9ab10d:KewKpbu2ccJPJ7P9M80Mo+7Y9aOd
Threatray 71 similar samples on MalwareBazaar
TLSH 8A94BF22F790A260C1B80471075D4BF356B97C6056308A7BA7F87F2F9A782916D93B4F
Reporter JAMESWT_WT
Tags:Sage

Intelligence

File Origin
# of uploads :
2
# of downloads :
89
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Sage
Create hunting rule
Link:
https://www.capesandbox.com/analysis/34374/
Detection(s):
PUA.Win.Downloader.Aiis-6803892-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %AppData% directory
Launching a process
Creating a process with a hidden window
Creating a process from a recently created file
Creating a file in the %temp% directory
Deleting a recently created file
Reading critical registry keys
Creating a file
Moving a recently created file
Changing a file
Searching for the window
Creating a file in the %AppData% subdirectories
Deleting volume shadow copies
Stealing user critical data
Creating a file in the mass storage device
Enabling autorun with the shell\open\command registry branches
Enabling autorun with Startup directory
Deleting of the original file
Encrypting user's files
Result
Threat name:
Sage
Create hunting rule
Detection:
malicious
Classification:
rans.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/401573
Signature
Changes the wallpaper picture
Checks for kernel debuggers (COM1)
Deletes itself after installation
Deletes shadow drive data (may be related to ransomware)
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found Tor onion address
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies existing user documents (likely ransomware behavior)
Potential evasive VBS script found (sleep loop)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Sage
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 253039 Sample: Yfynr2rqd9 Startdate: 29/07/2020 Architecture: WINDOWS Score: 100 51 Malicious sample detected (through community Yara rule) 2->51 53 Yara detected Sage 2->53 55 Machine Learning detection for sample 2->55 57 3 other signatures 2->57 8 Yfynr2rqd9.exe 4 7 2->8         started        12 Rj3fNWF3.exe 1 2->12         started        process3 file4 45 C:\Users\user\AppData\Roaming\Rj3fNWF3.exe, PE32 8->45 dropped 59 Detected unpacking (changes PE section rights) 8->59 61 Detected unpacking (overwrites its own PE header) 8->61 63 Checks for kernel debuggers (COM1) 8->63 14 Rj3fNWF3.exe 7 151 8->14         started        18 Yfynr2rqd9.exe 1 8->18         started        20 wscript.exe 8->20         started        22 schtasks.exe 1 8->22         started        24 Rj3fNWF3.exe 12->24         started        signatures5 process6 file7 47 C:\Users\user\Documents\...\LFOPODGVOH.jpg..., DOS 14->47 dropped 49 C:\Users\user\DocumentsWZCVGNOWT.png..., COM 14->49 dropped 67 Detected unpacking (changes PE section rights) 14->67 69 Detected unpacking (overwrites its own PE header) 14->69 71 Potential evasive VBS script found (sleep loop) 14->71 77 4 other signatures 14->77 26 Rj3fNWF3.exe 1 14->26         started        29 vssadmin.exe 14->29         started        31 vssadmin.exe 14->31         started        35 5 other processes 14->35 73 Checks for kernel debuggers (COM1) 18->73 75 Deletes itself after installation 20->75 33 conhost.exe 22->33         started        signatures8 process9 signatures10 65 Checks for kernel debuggers (COM1) 26->65 37 conhost.exe 29->37         started        39 conhost.exe 31->39         started        41 conhost.exe 35->41         started        43 conhost.exe 35->43         started        process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4bf23d6f5145191391a89a02336dfc640a5432327bf2582a91c52bbcd4410422/
Threat name:
Win32.Ransomware.SageCrypt
Create hunting rule
Status:
Malicious
First seen:
2020-07-28 16:15:50 UTC
File Type:
PE (Exe)
Extracted files:
49
AV detection:
28 of 48 (58.33%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jpzd232riumrhenitibdg3p4mqffimrsppzfqkuryuv3zvcbaqra._file
Verdict:
malicious
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19a05417793c14ee11b2ca7c32f96cbf70f15cae8b26aec7c2e3fc3c0a0f94e7
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3800d6c5cbe76acb00e60a5486f50a38dcbc5cbc16b0000572240ab97af31797
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88feb136758292f8412f0762f63bdcc3f2be6aa5c62d595cd752e3f697483687
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8fecf056f3580282cdb101c01e354425f208656fb7e5c5dcad19c64a62197184
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929dea381136f491a6b9e291182835ab8d9b190614fed258d744cac0939aada4
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a5716cbebec21624db3a37b22dc8dc0c0ffe420dd928380057790a6c5516cb3c
Sage
d14863ede83e63102ae3484d2c51cd2cac622e89b89c09097902fa91f3edcd7a
Sage
+ 61 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  10/10
Tags:
ransomware persistence
Link:
https://tria.ge/reports/200729-mdg68sbbe2/
Behaviour
Creates scheduled task(s)
Modifies Internet Explorer settings
Modifies data under HKEY_USERS
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Interacts with shadow copies
Modifies registry class
Modifies Control Panel
Suspicious use of AdjustPrivilegeToken
Modifies registry class
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Interacts with shadow copies
Creates scheduled task(s)
Modifies data under HKEY_USERS
Modifies Control Panel
Modifies service
Sets desktop wallpaper using registry
Modifies service
Sets desktop wallpaper using registry
JavaScript code in executable
JavaScript code in executable
Loads dropped DLL
Deletes itself
Deletes itself
Executes dropped EXE
Modifies extensions of user files
Modifies extensions of user files
Executes dropped EXE
Deletes shadow copies
Deletes shadow copies
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4bf23d6f5145191391a89a02336dfc640a5432327bf2582a91c52bbcd4410422

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:Destructive_Ransomware_Gen1
Create hunting rule
Author:Florian Roth
Description:Detects destructive malware
Reference:http://blog.talosintelligence.com/2018/02/olympic-destroyer.html

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/34374/

Comments