MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 50ed7ff89205b20b7aa7538438b2af93bbf61bc9488f5eb7e3dc673b0579a2f2. 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



CoinMiner


Vendor detections: 11


Intelligence 11 IOCs YARA 4 File information Comments 1

SHA256 hash: 50ed7ff89205b20b7aa7538438b2af93bbf61bc9488f5eb7e3dc673b0579a2f2
SHA3-384 hash: 0442e12ad2a55632b9d70e4211773b48b6d54397ff368f41e6875fce47a3c9708784bd3811f44eef4468ee528d3227a0
SHA1 hash: e3a610a77740f91b8085534bdf4ea530d9a8ca1c
MD5 hash: 206ef01e49cf89cce3ae37b77147637b
humanhash: berlin-romeo-pluto-freddie
File name:206ef01e49cf89cce3ae37b77147637b
Download: download sample
Signature CoinMiner
File size:266'752 bytes
First seen:2021-09-05 12:53:52 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 5107fa4193c2849c77704d8870503de7 (5 x RaccoonStealer, 2 x CoinMiner, 1 x Smoke Loader)
ssdeep 6144:Df7ySH2VV6yOoxypbVchDauBsj92P2hdLP4WBfO:PjEV65kypbVEDkj8OhdP40f
Threatray 142 similar samples on MalwareBazaar
TLSH T16D44BE1A7EA0F473D5A6C6304524C7F0EE3DBC751B6041AB7358FB6B2E70280962E35A
dhash icon b67e7c7d767e6e76 (5 x RaccoonStealer, 1 x CoinMiner)
Reporter zbetcheckin
Tags:32 CoinMiner exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
306
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
206ef01e49cf89cce3ae37b77147637b
Verdict:
Malicious activity
Analysis date:
2021-09-05 12:56:13 UTC
Tags:
installer trojan tofsee miner

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Running batch commands
Creating a process with a hidden window
Moving a file to the Windows subdirectory
Launching a process
Creating a service
Launching the process to change the firewall settings
Launching a service
Creating a process from a recently created file
DNS request
Connection attempt
Sending a custom TCP request
Creating a file in the Windows subdirectories
Sending a UDP request
Sending an HTTP GET request
Enabling autorun for a service
Unauthorized injection to a system process
Deleting of the original file
Adding exclusions to Windows Defender
Result
Threat name:
Tofsee Xmrig
Detection:
malicious
Classification:
spre.troj.evad.mine
Score:
100 / 100
Signature
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Changes security center settings (notifications, updates, antivirus, firewall)
Creates files in alternative data streams (ADS)
Deletes itself after installation
Detected Stratum mining protocol
Detected unpacking (changes PE section rights)
Drops executables to the windows directory (C:\Windows) and starts them
Found malware configuration
Found strings related to Crypto-Mining
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies the windows firewall
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Send many emails (e-Mail Spam)
Sigma detected: Copying Sensitive Files with Credential Data
Sigma detected: Suspect Svchost Activity
Sigma detected: Suspicious Svchost Process
Sigma detected: Xmrig
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Uses netsh to modify the Windows network and firewall settings
Writes to foreign memory regions
Yara detected Tofsee
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 477975 Sample: IKUiRXwsnT Startdate: 05/09/2021 Architecture: WINDOWS Score: 100 60 mx-aol.mail.gm0.yahoodns.net 2->60 62 mta5.am0.yahoodns.net 2->62 64 67 other IPs or domains 2->64 72 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->72 74 Sigma detected: Xmrig 2->74 76 Found malware configuration 2->76 80 14 other signatures 2->80 9 ixkgsrkw.exe 2->9         started        12 IKUiRXwsnT.exe 2 2->12         started        15 svchost.exe 2->15         started        17 7 other processes 2->17 signatures3 78 System process connects to network (likely due to code injection or exploit) 62->78 process4 dnsIp5 92 Detected unpacking (changes PE section rights) 9->92 94 Writes to foreign memory regions 9->94 96 Allocates memory in foreign processes 9->96 98 Injects a PE file into a foreign processes 9->98 20 svchost.exe 4 1 9->20         started        54 C:\Users\user\AppData\Local\...\ixkgsrkw.exe, PE32 12->54 dropped 100 Uses netsh to modify the Windows network and firewall settings 12->100 102 Modifies the windows firewall 12->102 25 cmd.exe 1 12->25         started        27 netsh.exe 3 12->27         started        29 cmd.exe 2 12->29         started        31 3 other processes 12->31 104 Changes security center settings (notifications, updates, antivirus, firewall) 15->104 56 127.0.0.1 unknown unknown 17->56 file6 signatures7 process8 dnsIp9 66 95.216.195.92, 428, 49709, 49726 HETZNER-ASDE Germany 20->66 68 wp.eu 20->68 70 103 other IPs or domains 20->70 50 C:\Windows\SysWOW64\...\systemprofile:.repos, data 20->50 dropped 82 System process connects to network (likely due to code injection or exploit) 20->82 84 Creates files in alternative data streams (ADS) 20->84 86 Performs DNS queries to domains with low reputation 20->86 90 2 other signatures 20->90 33 svchost.exe 1 20->33         started        52 C:\Windows\SysWOW64\...\ixkgsrkw.exe (copy), PE32 25->52 dropped 36 conhost.exe 25->36         started        38 conhost.exe 27->38         started        40 conhost.exe 29->40         started        42 conhost.exe 31->42         started        44 conhost.exe 31->44         started        46 conhost.exe 31->46         started        file10 88 Detected Stratum mining protocol 66->88 signatures11 process12 dnsIp13 58 fastpool.xyz 213.91.128.133, 10060, 49732 BTC-ASBULGARIABG Bulgaria 33->58 48 conhost.exe 33->48         started        process14
Threat name:
Win32.Trojan.Hynamer
Status:
Malicious
First seen:
2021-09-05 12:54:09 UTC
AV detection:
22 of 43 (51.16%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:tofsee family:xmrig evasion miner persistence trojan
Behaviour
Modifies data under HKEY_USERS
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Launches sc.exe
Drops file in System32 directory
Suspicious use of SetThreadContext
Deletes itself
Creates new service(s)
Executes dropped EXE
Modifies Windows Firewall
Sets service image path in registry
XMRig Miner Payload
Tofsee
Windows security bypass
xmrig
Unpacked files
SH256 hash:
167d2a327d3ef71d65ef0bc8e148ce24259bd8261b5d1bdd48a15ff3f58dd6da
MD5 hash:
a2fcec728cf62911fd07c5c5e0bf03e3
SHA1 hash:
529f1c41e1d8cff13032c3a83eb5bdb0641c1e69
Detections:
win_tofsee_w0
SH256 hash:
50ed7ff89205b20b7aa7538438b2af93bbf61bc9488f5eb7e3dc673b0579a2f2
MD5 hash:
206ef01e49cf89cce3ae37b77147637b
SHA1 hash:
e3a610a77740f91b8085534bdf4ea530d9a8ca1c
Please note that we are no longer able to provide a coverage score for Virus Total.

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:MAL_XMR_Miner_May19_1
Author:Florian Roth
Description:Detects Monero Crypto Coin Miner
Reference:https://www.guardicore.com/2019/05/nansh0u-campaign-hackers-arsenal-grows-stronger/
Rule name:MINER_monero_mining_detection
Author:Christiaan Beek | McAfee ATR Team
Description:Monero mining software
Rule name:win_tofsee_w0
Author:akrasuski1
Rule name:XMRIG_Monero_Miner
Author:Florian Roth
Description:Detects Monero mining software
Reference:https://github.com/xmrig/xmrig/releases

File information


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

Web download

CoinMiner

Executable exe 50ed7ff89205b20b7aa7538438b2af93bbf61bc9488f5eb7e3dc673b0579a2f2

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2021-09-05 12:53:53 UTC

url : hxxp://193.56.146.41:9080/a.php