MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9eb7abf2228ad28d8b7f571e0495d4a35da40607f04355307077975e271553b8. 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


Ryuk


Vendor detections: 12


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

SHA256 hash: 9eb7abf2228ad28d8b7f571e0495d4a35da40607f04355307077975e271553b8
SHA3-384 hash: a8906bc4e0ba99748a96fd6f546ac3e75c9109acdefe426734cdbb3d51de0ed3ccb3ae760cb73366bac70167ed8738a8
SHA1 hash: 502e42240969399c09337ecc7b5ca8fc1ba4baf3
MD5 hash: c68395e474088d5339972e2bf5a30f3c
humanhash: may-hawaii-cup-blossom
File name:c68395e474088d5339972e2bf5a30f3c.bin
Download: download sample
Signature Ryuk
Create hunting rule
File size:122'368 bytes
First seen:2021-03-17 20:59:52 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 7bd2e5fa6a60233b32aae2586fd8acda (1 x Ryuk)
ssdeep 1536:j/t3fhrg5rw0lQa2+T37us7RidSkPq9IiJ/EXrAyPca7m94nqHBmQSsWZcdH2kB/:lG55XP0Vq9IiKXrxkKNqHBmEHNVKA
Threatray 1 similar samples on MalwareBazaar
TLSH E6C36B1274D19C31D5F2587804E792639B7EB9341BB88DDB57C4262BCEE21C07D39B2A
Reporter Arkbird_SOLG
Tags:Ransomware Ryuk

Intelligence

File Origin
# of uploads :
1
# of downloads :
1'580
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
c68395e474088d5339972e2bf5a30f3c.exe
Verdict:
Malicious activity
Analysis date:
2021-03-17 04:55:18 UTC
Tags:
ransomware ryuk
Link:
https://app.any.run/tasks/5a4227e6-0861-483a-b49d-8ba8be1f9f32

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Ryuk
Create hunting rule
Link:
https://www.capesandbox.com/analysis/125250/
Detection(s):
Win.Ransomware.Midie-9839545-0
Create hunting rule

Win.Ransomware.Ryuk-9839544-1
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a file
Enabling the 'hidden' option for recently created files
Creating a process from a recently created file
Creating a process with a hidden window
Launching a process
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.
Malware family:
Ryuk
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3cc82cf1-0734-42ff-9b78-a16adbc9d9ff
Result
Threat name:
Ryuk
Create hunting rule
Detection:
malicious
Classification:
rans.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/643192
Signature
Antivirus / Scanner detection for submitted sample
Creates files in the recycle bin to hide itself
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Opens network shares
Sigma detected: Wake-On-Lan
Sigma detected: WannaCry Ransomware
Writes many files with high entropy
Yara detected Ryuk ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 370566 Sample: ytElIRNfoX.bin Startdate: 18/03/2021 Architecture: WINDOWS Score: 100 52 Sigma detected: WannaCry Ransomware 2->52 54 Antivirus / Scanner detection for submitted sample 2->54 56 Multi AV Scanner detection for submitted file 2->56 58 3 other signatures 2->58 7 ytElIRNfoX.exe 502 2->7         started        process3 file4 34 C:\Users\user\Desktop\tKtyGOrvFlan.exe, PE32 7->34 dropped 36 C:\Users\user\Desktop\olghVuauXlan.exe, PE32 7->36 dropped 38 C:\Users\user\Desktop\QtJLggznJrep.exe, PE32 7->38 dropped 40 54 other files (50 malicious) 7->40 dropped 60 Creates files in the recycle bin to hide itself 7->60 62 Writes many files with high entropy 7->62 11 olghVuauXlan.exe 7->11         started        15 QtJLggznJrep.exe 1 7->15         started        18 net.exe 7->18         started        20 13 other processes 7->20 signatures5 process6 dnsIp7 42 C:\ProgramData\Microsoft42etwork\...\qmgr.db, data 11->42 dropped 44 C:\ProgramData\Microsoft44etwork\...\edb.log, zlib 11->44 dropped 64 Multi AV Scanner detection for dropped file 11->64 66 Writes many files with high entropy 11->66 46 192.168.2.100 unknown unknown 15->46 48 192.168.2.101 unknown unknown 15->48 50 98 other IPs or domains 15->50 68 Opens network shares 15->68 22 conhost.exe 18->22         started        24 net1.exe 18->24         started        26 conhost.exe 20->26         started        28 conhost.exe 20->28         started        30 conhost.exe 20->30         started        32 14 other processes 20->32 file8 signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/9eb7abf2228ad28d8b7f571e0495d4a35da40607f04355307077975e271553b8/
Threat name:
Win32.Ransomware.Ryuk
Create hunting rule
Status:
Malicious
First seen:
2021-02-17 15:07:05 UTC
File Type:
PE (Exe)
AV detection:
37 of 47 (78.72%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=t232x4rcrlji3c37k4pajfouuno2ibqh6bbvkmdqo6lv4jyvko4a._file
Verdict:
unknown
Similar samples:
05e06709523fd798da963c2c24254de0fcca6c57e1052996798ecc74ff43b41f
Ryuk
Result
Malware family:
ryuk
Create hunting rule
Score:
  10/10
Tags:
family:ryuk discovery ransomware
Link:
https://tria.ge/reports/210317-w3pgez3hv6/
Behaviour
Creates scheduled task(s)
Runs net.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Drops desktop.ini file(s)
Drops startup file
Loads dropped DLL
Modifies file permissions
Executes dropped EXE
Ryuk
Unpacked files
SH256 hash:
9eb7abf2228ad28d8b7f571e0495d4a35da40607f04355307077975e271553b8
MD5 hash:
c68395e474088d5339972e2bf5a30f3c
SHA1 hash:
502e42240969399c09337ecc7b5ca8fc1ba4baf3
Detections:
win_ryuk_auto
Create hunting rule
Link:
https://www.unpac.me/results/37149138-9173-46ce-9747-53f3f60d3cf1/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Ryuk
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/9eb7abf2228ad28d8b7f571e0495d4a35da40607f04355307077975e271553b8

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:win_ryuk_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.

Cape
Cape
https://www.capesandbox.com/analysis/125250/

Comments