MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 49921fa466e1dc65ea6c037726015a69c634fc1631a2e379bfb3d7cf7644bcad. 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


Threat unknown


Vendor detections: 10


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

SHA256 hash: 49921fa466e1dc65ea6c037726015a69c634fc1631a2e379bfb3d7cf7644bcad
SHA3-384 hash: 639a5b3251133fbbd96615c3a8aa0b13565dab5a63504b8352a14e2fb9d0ff61985ad8d1bf60a8a84937426f8a42417f
SHA1 hash: e306781f95a37b5305a462b6f67611af2b776541
MD5 hash: cafcd59a669cfb2c981fcb8b58d0d1aa
humanhash: hot-undress-bakerloo-earth
File name:ransom.exe
Download: download sample
File size:1'342'464 bytes
First seen:2021-07-05 11:51:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 1679a5c6f05d9b5195b66ccfe1b877de
ssdeep 24576:BGUcQwd1X4/EFdioQDNW7CDqDqWCN9xq6u6A1XO88I8ttgcsrQhVmumnUMaf6:IUPwkQcDUA9w6wHx8dCQhEuaUMaf6
Threatray 7 similar samples on MalwareBazaar
TLSH ED55AF617A43C0B2D59100F08D7DAB7B4A3CAF291B318AD7E3C86E2D59305D16A3779B
Reporter madjack_red
Tags:exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
104
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
73773cc8-f1ed-4da3-a953-a5bdf17e2ed9
Verdict:
Malicious activity
Analysis date:
2021-06-17 18:20:19 UTC
Tags:
ransomware
Link:
https://app.any.run/tasks/fae27918-412b-4b41-853f-e9229d88a5a8

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Spyro
Create hunting rule
Link:
https://www.capesandbox.com/analysis/169730/
Detection(s):
Win.Ransomware.Vipasana-9783618-1
Create hunting rule

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:
Ouroboros
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9cc962c0-d45f-4c73-8db8-c3d2ea7a6226
Result
Threat name:
Unknown
Detection:
malicious
Classification:
rans.spre.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/811832
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Creates files in the recycle bin to hide itself
Disables security and backup related services
Disables the windows firewall (over ALG)
Drops executable to a common third party application directory
Drops PE files to the startup folder
Infects executable files (exe, dll, sys, html)
Machine Learning detection for dropped file
Modifies the windows firewall
Multi AV Scanner detection for submitted file
Sigma detected: WannaCry Ransomware
Uses bcdedit to modify the Windows boot settings
Uses netsh to modify the Windows network and firewall settings
Writes many files with high entropy
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 444243 Sample: ransom.exe Startdate: 05/07/2021 Architecture: WINDOWS Score: 100 70 x1.c.lencr.org 2->70 72 r3.o.lencr.org 2->72 80 Sigma detected: WannaCry Ransomware 2->80 82 Antivirus detection for dropped file 2->82 84 Antivirus / Scanner detection for submitted sample 2->84 86 2 other signatures 2->86 10 ransom.exe 231 2->10         started        signatures3 process4 dnsIp5 74 api.my-ip.io 157.245.5.40, 443, 49731 DIGITALOCEAN-ASNUS United States 10->74 76 127.0.0.1 unknown unknown 10->76 78 192.168.2.3, 443, 49563, 49680 unknown unknown 10->78 62 C:\ProgramData\Microsoft\...\ransom.exe, PE32 10->62 dropped 64 MSO1033.acl.[torme...J-RK8526047931].bom, data 10->64 dropped 66 services.[tormente...J-RK8526047931].bom, data 10->66 dropped 68 129 other files (127 malicious) 10->68 dropped 88 Creates files in the recycle bin to hide itself 10->88 90 Drops PE files to the startup folder 10->90 92 Uses bcdedit to modify the Windows boot settings 10->92 94 6 other signatures 10->94 15 cmd.exe 1 10->15         started        18 cmd.exe 1 10->18         started        20 cmd.exe 1 10->20         started        22 11 other processes 10->22 file6 signatures7 process8 signatures9 96 Uses netsh to modify the Windows network and firewall settings 15->96 24 net.exe 1 15->24         started        26 conhost.exe 15->26         started        28 net.exe 1 18->28         started        30 conhost.exe 18->30         started        32 net.exe 1 20->32         started        34 conhost.exe 20->34         started        36 net.exe 1 22->36         started        38 net.exe 1 22->38         started        40 13 other processes 22->40 process10 process11 42 net1.exe 1 24->42         started        44 net.exe 28->44         started        46 net1.exe 1 28->46         started        48 conhost.exe 28->48         started        50 net1.exe 1 32->50         started        52 net1.exe 1 36->52         started        54 net1.exe 1 38->54         started        56 net1.exe 40->56         started        58 net1.exe 40->58         started        process12 60 net1.exe 44->60         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/49921fa466e1dc65ea6c037726015a69c634fc1631a2e379bfb3d7cf7644bcad/
Threat name:
Win32.Ransomware.Voidcrypt
Create hunting rule
Status:
Malicious
First seen:
2021-06-17 22:36:06 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Verdict:
malicious
Similar samples:
162c90e6e8a1b019ed7272b16b2307cbbdb0bac09acec116fb6c3619c86794c4
2e75096b3364e2e9fef81fac5626e1fb15d9e5f76afe308cf7d4053040f65685
318c6717d3881cbc9b1f24325a85e79d5c5768a03387dfb2cf605638a4b45056
353086a213c6868d07ef24f82ae4786d2f4a1af67530e925a7cf53a49ea3964f
581122114ad28f404b2cc4f8df5d77b6ed447f8f26f862960bb0181776bfacd9
a6f33427a356dca0420466bcc3283592e87caf4c8224c7d50819f69c71edd461
cd19340138f9eab48d20b3bf0a9dc6b4a6908d14cd48511ccefd6dba9e84705f
Result
Malware family:
xmrig
Create hunting rule
Score:
  10/10
Tags:
family:xmrig evasion miner ransomware spyware stealer
Link:
https://tria.ge/reports/210705-r59721xcmx/
Behaviour
NTFS ADS
Runs net.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Drops file in Windows directory
Drops autorun.inf file
Drops file in System32 directory
Drops desktop.ini file(s)
Drops startup file
Reads user/profile data of web browsers
Drops file in Drivers directory
Modifies Windows Firewall
Modifies extensions of user files
xmrig
Unpacked files
SH256 hash:
49921fa466e1dc65ea6c037726015a69c634fc1631a2e379bfb3d7cf7644bcad
MD5 hash:
cafcd59a669cfb2c981fcb8b58d0d1aa
SHA1 hash:
e306781f95a37b5305a462b6f67611af2b776541
Link:
https://www.unpac.me/results/c7dbe1a5-42ad-45db-8107-946d04e97aad/
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/49921fa466e1dc65ea6c037726015a69c634fc1631a2e379bfb3d7cf7644bcad

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:INDICATOR_SUSPICIOUS_GENRansomware
Create hunting rule
Author:ditekSHen
Description:detects command variations typically used by ransomware

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/169730/

Comments