MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4ed68097ee23816012547d4fc6348f28add26227747de46f0fdd424511097419. 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


Tofsee


Vendor detections: 14


Intelligence 14 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4ed68097ee23816012547d4fc6348f28add26227747de46f0fdd424511097419
SHA3-384 hash: eac4fd6a0ff87e4e3bf83fc01d15c8d2390292a49434fbaacb77a25c86781e7d0be0e70eaf1146f56faa167758edfdd1
SHA1 hash: 7a9625ad83508cc4691184c3c72fc720010700fe
MD5 hash: 64526d68799a4eed9997e2eafd9bc48d
humanhash: oklahoma-carolina-red-nuts
File name:file
Download: download sample
Signature Tofsee
Create hunting rule
File size:287'232 bytes
First seen:2023-05-28 18:35:13 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 96475f7ea3cc105ae1bb971e987af868 (2 x Smoke Loader, 2 x Rhadamanthys, 1 x Stealc)
ssdeep 3072:NLkcmKcLP+pizokfgcPnhKekR9WoB085Tmw3VyuQ:hkc0PgikkRng3Jly/
TLSH T1A254071392A13D54E9764B729F2FC7F83A1EF2508F597BA922189E1F04B03B2C563B51
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 8000248080a49440 (1 x Tofsee)
Reporter andretavare5
Tags:exe Tofsee


Avatar
andretavare5
Sample downloaded from http://176.113.115.239:8080/4.php

Intelligence

File Origin
# of uploads :
1
# of downloads :
340
Origin country :
US US
Vendor Threat Intelligence
Malware family:
tofsee
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-05-28 18:36:23 UTC
Tags:
tofsee miner trojan
Link:
https://app.any.run/tasks/fda35282-56df-4b55-bfe2-449112f96252

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Tofsee
Create hunting rule
Link:
https://www.capesandbox.com/analysis/392861/
Detection(s):
Win.Packer.pkr_ce1a-9980177-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a file
Launching the process to change the firewall settings
Creating a service
Creating a process from a recently created file
Launching a service
Launching the default Windows debugger (dwwin.exe)
Enabling autorun for a service
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware packed tofsee
Link:
https://www.filescan.io/uploads/64739f13c395c9619299a85c/reports/fc94fa15-025b-4b5b-9c13-6169c4a59199/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/4ed68097ee23816012547d4fc6348f28add26227747de46f0fdd424511097419
Result
Verdict:
UNKNOWN
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:
Tofsee
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/bb18ce1e-c177-48cc-8456-ec20f821f473
Result
Threat name:
Tofsee
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1244082
Signature
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Deletes itself after installation
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Drops executables to the windows directory (C:\Windows) and starts them
Found API chain indicative of debugger detection
Found malware configuration
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 domain / URL
Multi AV Scanner detection for submitted file
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: 877088 Sample: file.exe Startdate: 28/05/2023 Architecture: WINDOWS Score: 100 43 microsoft-com.mail.protection.outlook.com 2->43 51 Multi AV Scanner detection for domain / URL 2->51 53 Found malware configuration 2->53 55 Malicious sample detected (through community Yara rule) 2->55 57 7 other signatures 2->57 8 mpmfwysi.exe 2->8         started        11 file.exe 2 2->11         started        signatures3 process4 file5 59 Writes to foreign memory regions 8->59 61 Allocates memory in foreign processes 8->61 63 Injects a PE file into a foreign processes 8->63 14 svchost.exe 1 8->14         started        41 C:\Users\user\AppData\Local\...\mpmfwysi.exe, PE32 11->41 dropped 65 Detected unpacking (changes PE section rights) 11->65 67 Detected unpacking (overwrites its own PE header) 11->67 69 Uses netsh to modify the Windows network and firewall settings 11->69 71 Modifies the windows firewall 11->71 18 cmd.exe 1 11->18         started        21 netsh.exe 3 11->21         started        23 cmd.exe 2 11->23         started        25 3 other processes 11->25 signatures6 process7 dnsIp8 45 vanaheim.cn 62.84.99.235, 443, 49699, 49700 CONTACT-ASContactCompanyAutonomousSystemRU Russian Federation 14->45 47 microsoft-com.mail.protection.outlook.com 40.93.207.5, 25, 49698 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 14->47 49 192.168.2.1 unknown unknown 14->49 73 System process connects to network (likely due to code injection or exploit) 14->73 75 Found API chain indicative of debugger detection 14->75 77 Deletes itself after installation 14->77 39 C:\Windows\SysWOW64\...\mpmfwysi.exe (copy), PE32 18->39 dropped 27 conhost.exe 18->27         started        29 conhost.exe 21->29         started        31 conhost.exe 23->31         started        33 conhost.exe 25->33         started        35 conhost.exe 25->35         started        37 conhost.exe 25->37         started        file9 signatures10 process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4ed68097ee23816012547d4fc6348f28add26227747de46f0fdd424511097419/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Malicious
First seen:
2023-05-28 18:36:05 UTC
File Type:
PE (Exe)
Extracted files:
52
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=j3libf7oeoawaesupvh4mnepfcw5eyrhor66i3yp3vbekeijoqmq._file
Result
Malware family:
xmrig
Create hunting rule
Score:
  10/10
Tags:
family:tofsee family:xmrig evasion miner persistence trojan
Link:
https://tria.ge/reports/230528-w8wrtsgb54/
Behaviour
Modifies data under HKEY_USERS
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Launches sc.exe
Drops file in System32 directory
Suspicious use of SetThreadContext
Checks computer location settings
Deletes itself
Executes dropped EXE
Creates new service(s)
Modifies Windows Firewall
Sets service image path in registry
XMRig Miner payload
Tofsee
Windows security bypass
xmrig
Malware Config
C2 Extraction:
vanaheim.cn
jotunheim.name
Gathering data
Malware family:
XMRig
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4ed68097ee23/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/4ed68097ee23816012547d4fc6348f28add26227747de46f0fdd424511097419

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:MALWARE_Win_Tofsee
Create hunting rule
Author:ditekSHen
Description:Detects Tofsee
Rule name:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:tofsee_yhub
Create hunting rule
Author:Billy Austin
Description:Detects Tofsee botnet, also known as Gheg
Rule name:Windows_Trojan_Tofsee_26124fe4
Create hunting rule
Author:Elastic Security
Rule name:win_tofsee
Create hunting rule
Author:akrasuski1
Description:Tofsee malware
Reference:https://www.bitsight.com/blog/tofsee-botnet-proxying-and-mining
Rule name:win_tofsee_w0
Create hunting rule
Author:akrasuski1
Rule name:yara_template
Create hunting rule

File information

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

  
Dropped by
PrivateLoader
  
Delivery method
Distributed via drive-by
  
URLhaus
https://urlhaus.abuse.ch/url/2513471/
Cape
Cape
https://www.capesandbox.com/analysis/392861/

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