MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8eedf9808602744f863a6ed50a3ae5340ec3e10a086f04afb0872273669e5b0e. 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 10 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8eedf9808602744f863a6ed50a3ae5340ec3e10a086f04afb0872273669e5b0e
SHA3-384 hash: 29af0f187551a6dc6228719ed052986e3af37a079c993c73f4d4e34bf4dcf414a2bb1a65ee19055ba0f51379b2e424fa
SHA1 hash: efb5d21200d3bd1c76766496d554b9c6112f07eb
MD5 hash: ac6e1f117c1789066e843aeeb68f18e7
humanhash: orange-undress-vegan-snake
File name:file
Download: download sample
Signature Tofsee
Create hunting rule
File size:200'192 bytes
First seen:2023-02-06 01:13:13 UTC
Last seen:2023-02-06 02:33:09 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 3ced25aef08debb1b64327bf79b9678c (14 x Smoke Loader, 10 x RedLineStealer, 7 x CoinMiner)
ssdeep 3072:5KHROuWOJNRTfALteTTW5Y54GS7TsqyZHhK/Lhn+Pk4cm7OtLNndrHD:EHRtQLtCTpS7U4x+pOtBnd
TLSH T10114D03E35D0C072C56A29705824D7A97BBEB83216788A9B7B98076E4F702C1577B34B
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 916a6e6e6a6a6a74 (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 :
25
# of downloads :
205
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
tofsee
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-02-06 01:13:23 UTC
Tags:
tofsee miner trojan
Link:
https://app.any.run/tasks/95d41687-068c-473e-95c5-1c27e836e871

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/360511/
Detection(s):
SecuriteInfo.com.Win32.CrypterX-gen.7389.31953.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching the default Windows debugger (dwwin.exe)
Creating a file in the %temp% directory
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Launching a process
Sending a custom TCP request
Creating a file
Launching the process to change the firewall settings
Creating a process from a recently created file
Creating a service
Launching a service
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun for a service
Verdict:
No Threat
Threat level:
  2/10
Confidence:
75%
Tags:
greyware packed
Link:
https://www.filescan.io/uploads/63e0545c1c9cbf7d6256052f/reports/4ec240b8-83ef-4b7f-8581-7b3bb9afc93a/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/8eedf9808602744f863a6ed50a3ae5340ec3e10a086f04afb0872273669e5b0e
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/0cd69214-b950-43ef-a1c6-b34211c06905
Result
Threat name:
Tofsee
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1166191
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)
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
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
Snort IDS alert for network traffic
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: 798958 Sample: file.exe Startdate: 06/02/2023 Architecture: WINDOWS Score: 100 43 microsoft-com.mail.protection.outlook.com 2->43 49 Snort IDS alert for network traffic 2->49 51 Multi AV Scanner detection for domain / URL 2->51 53 Malicious sample detected (through community Yara rule) 2->53 55 7 other signatures 2->55 8 pjltpjpi.exe 2->8         started        11 file.exe 2 2->11         started        signatures3 process4 file5 57 Detected unpacking (changes PE section rights) 8->57 59 Detected unpacking (overwrites its own PE header) 8->59 61 Writes to foreign memory regions 8->61 67 2 other signatures 8->67 14 svchost.exe 1 8->14         started        41 C:\Users\user\AppData\Local\...\pjltpjpi.exe, PE32 11->41 dropped 63 Uses netsh to modify the Windows network and firewall settings 11->63 65 Modifies the windows firewall 11->65 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 svartalfheim.top 46.173.218.63, 443, 49702, 49706 GARANT-PARK-INTERNETRU Russian Federation 14->45 47 microsoft-com.mail.protection.outlook.com 40.93.207.2, 25, 49701 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 14->47 69 System process connects to network (likely due to code injection or exploit) 14->69 71 Found API chain indicative of debugger detection 14->71 73 Deletes itself after installation 14->73 39 C:\Windows\SysWOW64\...\pjltpjpi.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/8eedf9808602744f863a6ed50a3ae5340ec3e10a086f04afb0872273669e5b0e/
Threat name:
Win32.Backdoor.Tofsee
Create hunting rule
Status:
Malicious
First seen:
2023-02-06 01:14:07 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=r3w7taegaj2e7br2n3kquoxfgqhmhyikbbxqjl5qq4rhgzu6lmha._file
Verdict:
malicious
Result
Malware family:
xmrig
Create hunting rule
Score:
  10/10
Tags:
family:tofsee family:xmrig evasion miner persistence trojan
Link:
https://tria.ge/reports/230206-blngqabe98/
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:
svartalfheim.top
jotunheim.name
Unpacked files
SH256 hash:
567bf2d81801d20f68ebd26bd635ed9368e5f96a36faa7c7b56670a265a0f595
MD5 hash:
3507ac20edc28236789d8b2e474e94c4
SHA1 hash:
5a6a20c329dd18c45db826202929145fa77059aa
Link:
https://www.unpac.me/results/ec8d9b68-aef1-4368-88c7-274ecc862872/
SH256 hash:
5ce071c4a895978cba66d9fe941ae8ed4ba335087a51e1e339de166ec61e354d
MD5 hash:
1cb4686dd40d0f921ea331e60adeec94
SHA1 hash:
7cf9cd0d1a0032afa5bc036d5f6d8e8247b05384
Link:
https://www.unpac.me/results/ec8d9b68-aef1-4368-88c7-274ecc862872/
SH256 hash:
8eedf9808602744f863a6ed50a3ae5340ec3e10a086f04afb0872273669e5b0e
MD5 hash:
ac6e1f117c1789066e843aeeb68f18e7
SHA1 hash:
efb5d21200d3bd1c76766496d554b9c6112f07eb
Link:
https://www.unpac.me/results/ec8d9b68-aef1-4368-88c7-274ecc862872/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8eedf9808602/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/8eedf9808602744f863a6ed50a3ae5340ec3e10a086f04afb0872273669e5b0e

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:Detect_Tofsee
Create hunting rule
Author:@malgamy12
Description:Detect_Tofsee
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_Smokeloader_3687686f
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_Tofsee_26124fe4
Create hunting rule
Author:Elastic Security
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
Cape
Cape
https://www.capesandbox.com/analysis/360511/

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