MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 151581dcdda0e678656486dd87d99553b5a0fbae63f7f8d265979064277c5978. 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: 12


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

SHA256 hash: 151581dcdda0e678656486dd87d99553b5a0fbae63f7f8d265979064277c5978
SHA3-384 hash: a8d1d905fadef43a462ffc1f7e24883306df482c2f6ad6a8623a721cc339b05f0e76b7b9de344035789d9619805cd602
SHA1 hash: 27743f5ea8763aae3eb2faef6cb2c3c57d1ffa6a
MD5 hash: 50c1b94e1587d6a146423a99fa5dcd29
humanhash: sad-seven-zebra-london
File name:50c1b94e1587d6a146423a99fa5dcd29
Download: download sample
Signature CoinMiner
Create hunting rule
File size:202'240 bytes
First seen:2021-09-10 08:44:44 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 848a9096b952588ac6289d06befbec14 (2 x RaccoonStealer, 1 x CoinMiner, 1 x Tofsee)
ssdeep 3072:sRkeglnZPMOJB+j/J3jhXNuXRSs03wx5lA7xf917gO6G:sRQPnJKjhqd03eAtV1EOf
Threatray 146 similar samples on MalwareBazaar
TLSH T1CF14BE3936E1C432C1975431D9A5CAB49A7EB8326BB0858B77AC1B7E6F302D0573E346
dhash icon 81bcdcac9c8cb484 (7 x RaccoonStealer, 5 x RedLineStealer, 2 x ArkeiStealer)
Reporter zbetcheckin
Tags:32 CoinMiner exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
196
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
50c1b94e1587d6a146423a99fa5dcd29
Verdict:
Malicious activity
Analysis date:
2021-09-10 08:45:42 UTC
Tags:
trojan tofsee miner
Link:
https://app.any.run/tasks/ba945cac-4b98-4d0c-a9cd-cb92a93f96c2

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/186823/
Detection(s):
SecuriteInfo.com.Trojan.Win32.Save.a.24598.21689.UNOFFICIAL
Create hunting rule

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
Launching the process to change the firewall settings
Creating a service
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
Malware family:
Tofsee
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b39e4ba9-4814-4829-b7dc-4a5216f2c905
Result
Threat name:
Tofsee
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/848664
Signature
Allocates memory in foreign processes
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Deletes itself after installation
Detected unpacking (changes PE section rights)
Drops executables to the windows directory (C:\Windows) and starts them
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Modifies the windows firewall
Multi AV Scanner detection for submitted file
Sigma detected: Copying Sensitive Files with Credential Data
Sigma detected: Suspect Svchost Activity
Sigma detected: Suspicious Svchost Process
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 481095 Sample: RRZdJXgp6s Startdate: 10/09/2021 Architecture: WINDOWS Score: 100 47 microsoft-com.mail.protection.outlook.com 2->47 53 Found malware configuration 2->53 55 Antivirus detection for dropped file 2->55 57 Multi AV Scanner detection for submitted file 2->57 59 8 other signatures 2->59 8 rywhmhvj.exe 2->8         started        11 RRZdJXgp6s.exe 2 2->11         started        14 svchost.exe 1 2->14         started        16 3 other processes 2->16 signatures3 process4 file5 65 Detected unpacking (changes PE section rights) 8->65 67 Writes to foreign memory regions 8->67 69 Allocates memory in foreign processes 8->69 71 Injects a PE file into a foreign processes 8->71 18 svchost.exe 1 8->18         started        45 C:\Users\user\AppData\Local\...\rywhmhvj.exe, PE32 11->45 dropped 73 Uses netsh to modify the Windows network and firewall settings 11->73 75 Modifies the windows firewall 11->75 22 cmd.exe 1 11->22         started        25 netsh.exe 3 11->25         started        27 cmd.exe 2 11->27         started        29 3 other processes 11->29 signatures6 process7 dnsIp8 49 defeatwax.ru 193.56.146.188, 443, 49755, 49793 LVLT-10753US unknown 18->49 51 microsoft-com.mail.protection.outlook.com 40.93.207.1, 25, 49754 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 18->51 61 System process connects to network (likely due to code injection or exploit) 18->61 63 Deletes itself after installation 18->63 43 C:\Windows\SysWOW64\...\rywhmhvj.exe (copy), PE32 22->43 dropped 31 conhost.exe 22->31         started        33 conhost.exe 25->33         started        35 conhost.exe 27->35         started        37 conhost.exe 29->37         started        39 conhost.exe 29->39         started        41 conhost.exe 29->41         started        file9 signatures10 process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/151581dcdda0e678656486dd87d99553b5a0fbae63f7f8d265979064277c5978/
Threat name:
Win32.Backdoor.Tofsee
Create hunting rule
Status:
Malicious
First seen:
2021-09-10 08:45:05 UTC
AV detection:
20 of 39 (51.28%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=cukydxg5udthqzleq3oypwmvko22b65omp37rutfs6igij34lf4a._file
Verdict:
malicious
Similar samples:
0c3080ef33448167fc2b858db5ec7b2e4705cb12ca57119088892459ea0cc832
CoinMiner
50ed7ff89205b20b7aa7538438b2af93bbf61bc9488f5eb7e3dc673b0579a2f2
CoinMiner
587f79f301d6ca9ad6a02642cf6ebfbce12b3eaa524ecd67834ca1314447c4da
CoinMiner
8fcb2057bdac3ba88cb811c44a0d79358075525506b1517c3e713aec8d31a666
CoinMiner
af21217ee5523873bc4ee3b262ce06a371a1095abfea9729e3413cf9da1a0cab
CoinMiner
b29336af96fb97eae18de7b3655762c9cbcd5c2f0257a43cd4c66cbb864ac79b
CoinMiner
f9cd208d6510eb375673db4aa3f35d77f1cbcf3776f97cb1761d65425d7bf70e
CoinMiner
+ 136 additional samples on MalwareBazaar
Result
Malware family:
xmrig
Create hunting rule
Score:
  10/10
Tags:
family:tofsee family:xmrig evasion miner persistence trojan
Link:
https://tria.ge/reports/210910-knqjjachbp/
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
Create hunting rule
Link:
https://www.unpac.me/results/d1c5b9fb-ffc5-455e-afb6-74b6f55aafee/
Parent samples :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 hash:
151581dcdda0e678656486dd87d99553b5a0fbae63f7f8d265979064277c5978
MD5 hash:
50c1b94e1587d6a146423a99fa5dcd29
SHA1 hash:
27743f5ea8763aae3eb2faef6cb2c3c57d1ffa6a
Link:
https://www.unpac.me/results/d1c5b9fb-ffc5-455e-afb6-74b6f55aafee/
Malware family:
XMRIG
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/151581dcdda0/report/overview.html
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/151581dcdda0e678656486dd87d99553b5a0fbae63f7f8d265979064277c5978

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_tofsee_w0
Create hunting rule
Author:akrasuski1

File information

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

Web download

CoinMiner

Executable exe 151581dcdda0e678656486dd87d99553b5a0fbae63f7f8d265979064277c5978

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/186823/

Comments


Avatar
zbet commented on 2021-09-10 08:44:45 UTC

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