MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 37d51be7f6011c1acebd7ef1833f3403d87706095e74ee2568936bc0047d2374. 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: 7


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

SHA256 hash: 37d51be7f6011c1acebd7ef1833f3403d87706095e74ee2568936bc0047d2374
SHA3-384 hash: d4c6552e966223230595904ade4012f4e1d1a77c68a98c436a098049efc0be0c59dc511a382da6b2fa34d543a3505672
SHA1 hash: db6a7ec5f3060810c9604f635798b199716988f3
MD5 hash: 2057241b6d8625551e2c5d35312167a3
humanhash: violet-lemon-failed-low
File name:37d51be7f6011c1acebd7ef1833f3403d87706095e74ee2568936bc0047d2374
Download: download sample
Signature Sage
Create hunting rule
File size:421'888 bytes
First seen:2020-07-29 07:20:48 UTC
Last seen:2020-07-29 07:53:14 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 0e8b64f6d1d0d86db63afa923caa1af0 (1 x Sage)
ssdeep 12288:+12pdkL9k9GbSZlzqXUllChvcdLjjm2jk8s:+ss97bSZl8dhEdm
Threatray 1'737 similar samples on MalwareBazaar
TLSH BD949D21F680C835F5B602F985B2C6A8A6387D726B7891CFA3D1799F55306E1EC32713
Reporter JAMESWT_WT
Tags:Sage

Intelligence

File Origin
# of uploads :
2
# of downloads :
89
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/34373/
Detection(s):
PUA.Win.Downloader.Aiis-6803892-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a process with a hidden window
Creating a process from a recently created file
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
Launching a service
Creating a window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
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/401570
Signature
Changes the wallpaper picture
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: 253036 Sample: VWsbjfE4nD Startdate: 29/07/2020 Architecture: WINDOWS Score: 100 57 Malicious sample detected (through community Yara rule) 2->57 59 Yara detected Sage 2->59 61 Machine Learning detection for sample 2->61 63 3 other signatures 2->63 8 VWsbjfE4nD.exe 5 7 2->8         started        12 Rj3fNWF3.exe 1 2->12         started        14 wuapihost.exe 2->14         started        process3 file4 45 C:\Users\user\AppData\Roaming\Rj3fNWF3.exe, PE32 8->45 dropped 65 Detected unpacking (changes PE section rights) 8->65 67 Detected unpacking (overwrites its own PE header) 8->67 16 Rj3fNWF3.exe 7 117 8->16         started        19 wscript.exe 8->19         started        21 schtasks.exe 1 8->21         started        23 VWsbjfE4nD.exe 1 8->23         started        25 Rj3fNWF3.exe 12->25         started        signatures5 process6 signatures7 47 Detected unpacking (changes PE section rights) 16->47 49 Detected unpacking (overwrites its own PE header) 16->49 51 Potential evasive VBS script found (sleep loop) 16->51 55 4 other signatures 16->55 27 vssadmin.exe 1 16->27         started        29 vssadmin.exe 16->29         started        31 vssadmin.exe 16->31         started        35 5 other processes 16->35 53 Deletes itself after installation 19->53 33 conhost.exe 21->33         started        process8 process9 37 conhost.exe 27->37         started        39 conhost.exe 29->39         started        41 conhost.exe 31->41         started        43 conhost.exe 35->43         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/37d51be7f6011c1acebd7ef1833f3403d87706095e74ee2568936bc0047d2374/
Threat name:
Win32.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-07-28 11:07:32 UTC
File Type:
PE (Exe)
Extracted files:
15
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=g7krxz7waeobvtv5p3yygpzuapmhobqjlz2o4jlisnv4abd5en2a._file
Verdict:
malicious
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146fb5b594f6b9da202cd0d303548afb1f364ca93c27c44e2f442b1fe26ff77f
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19a05417793c14ee11b2ca7c32f96cbf70f15cae8b26aec7c2e3fc3c0a0f94e7
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359a83d05d6d30510f26f95146ddad7da943eb4e7014fa5c3a6caa41ac102681
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3800d6c5cbe76acb00e60a5486f50a38dcbc5cbc16b0000572240ab97af31797
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47e9841c99f3e198a715263f76861e997d807a085ce69c6288bfe97227242ed9
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594af48b4da21f654d0ceadede4257865f96d9ae3b1f2ef4a96298a9385c7b2c
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8fecf056f3580282cdb101c01e354425f208656fb7e5c5dcad19c64a62197184
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a5716cbebec21624db3a37b22dc8dc0c0ffe420dd928380057790a6c5516cb3c
Sage
d14863ede83e63102ae3484d2c51cd2cac622e89b89c09097902fa91f3edcd7a
Sage
+ 1'727 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  10/10
Tags:
ransomware persistence
Link:
https://tria.ge/reports/200729-jfh829er6a/
Behaviour
Suspicious use of AdjustPrivilegeToken
Interacts with shadow copies
Modifies data under HKEY_USERS
Modifies registry class
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Modifies Control Panel
Modifies Internet Explorer settings
Creates scheduled task(s)
Modifies data under HKEY_USERS
Creates scheduled task(s)
Interacts with shadow copies
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Modifies Control Panel
Suspicious use of WriteProcessMemory
Modifies registry class
Program crash
Modifies service
Sets desktop wallpaper using registry
Sets desktop wallpaper using registry
Modifies service
JavaScript code in executable
JavaScript code in executable
Deletes itself
Loads dropped DLL
Deletes itself
Modifies extensions of user files
Executes dropped EXE
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:
Upatre
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/37d51be7f6011c1acebd7ef1833f3403d87706095e74ee2568936bc0047d2374

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/34373/

Comments