MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6f5f412f4100c88ca174a6c35bb1c0e91b366782ac87ecd4751d95329941e818. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6f5f412f4100c88ca174a6c35bb1c0e91b366782ac87ecd4751d95329941e818
SHA3-384 hash: ca8fad199879f3085bd7f14e074842863ab6a173bb02f95e2ed76b68c0663b041c76d0b729bd9d9a8d3a16e02e09e35e
SHA1 hash: 2691cd88c4ae2c351cd292a551da798f6023440e
MD5 hash: b44b9f4497332c165effe7e5aebbe4d9
humanhash: hawaii-kitten-tennessee-uniform
File name:b44b9f4497332c165effe7e5aebbe4d9
Download: download sample
Signature Tofsee
Create hunting rule
File size:202'240 bytes
First seen:2022-09-25 02:19:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 9bc2d597fd7126e41426db0472ea1363 (14 x Smoke Loader, 11 x GCleaner, 9 x Stop)
ssdeep 3072:Wiz4MyLvL4klKN51fIR6BtbV9AZEbyeWyfElB1X/PkkXx:kLvblSh7oqbrEN
TLSH T13614D0C036A0E43EC0768574B860C7E599799C2242255A8B375A7F6FAE303D19FFE346
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2dacabecee6baa6 (148 x RedLineStealer, 145 x Stop, 100 x Smoke Loader)
Reporter zbetcheckin
Tags:32 exe Tofsee

Intelligence

File Origin
# of uploads :
1
# of downloads :
262
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/313031/
Detection(s):
SecuriteInfo.com.Win32.RansomX-gen.16957.UNOFFICIAL
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
Launching the process to change the firewall settings
Creating a file
Creating a process from a recently created file
Creating a service
Launching a service
Launching the default Windows debugger (dwwin.exe)
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun for a service
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
75%
Tags:
anti-vm azorult emotet greyware packed ursnif
Link:
https://www.filescan.io/uploads/632fbb0f6963f27ddc304eea/reports/069ae3ad-0412-425e-aa63-bcb6f77d3b68/overview
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/3952f688-0f3e-4b84-8855-797d358e7b67
Result
Threat name:
Tofsee
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1076680
Signature
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Changes security center settings (notifications, updates, antivirus, firewall)
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
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
Query firmware table information (likely to detect VMs)
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: 709222 Sample: BS5mMj6Dtw.exe Startdate: 25/09/2022 Architecture: WINDOWS Score: 100 54 microsoft-com.mail.protection.outlook.com 2->54 60 Snort IDS alert for network traffic 2->60 62 Multi AV Scanner detection for domain / URL 2->62 64 Malicious sample detected (through community Yara rule) 2->64 66 7 other signatures 2->66 8 wsnqawal.exe 2->8         started        11 BS5mMj6Dtw.exe 2 2->11         started        14 svchost.exe 2->14         started        16 8 other processes 2->16 signatures3 process4 dnsIp5 72 Detected unpacking (changes PE section rights) 8->72 74 Detected unpacking (overwrites its own PE header) 8->74 76 Writes to foreign memory regions 8->76 86 2 other signatures 8->86 19 svchost.exe 1 8->19         started        50 C:\Users\user\AppData\Local\...\wsnqawal.exe, PE32 11->50 dropped 78 Uses netsh to modify the Windows network and firewall settings 11->78 80 Modifies the windows firewall 11->80 23 cmd.exe 1 11->23         started        26 netsh.exe 3 11->26         started        28 cmd.exe 2 11->28         started        32 3 other processes 11->32 82 Changes security center settings (notifications, updates, antivirus, firewall) 14->82 30 MpCmdRun.exe 1 14->30         started        52 192.168.2.1 unknown unknown 16->52 84 Query firmware table information (likely to detect VMs) 16->84 file6 signatures7 process8 dnsIp9 56 svartalfheim.top 95.161.129.167, 443, 49703, 49704 TIERA-ASRU Russian Federation 19->56 58 microsoft-com.mail.protection.outlook.com 104.47.53.36, 25, 49702 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 19->58 68 System process connects to network (likely due to code injection or exploit) 19->68 70 Deletes itself after installation 19->70 48 C:\Windows\SysWOW64\...\wsnqawal.exe (copy), PE32 23->48 dropped 34 conhost.exe 23->34         started        36 conhost.exe 26->36         started        38 conhost.exe 28->38         started        40 conhost.exe 30->40         started        42 conhost.exe 32->42         started        44 conhost.exe 32->44         started        46 conhost.exe 32->46         started        file10 signatures11 process12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6f5f412f4100c88ca174a6c35bb1c0e91b366782ac87ecd4751d95329941e818/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2022-09-25 02:20:11 UTC
File Type:
PE (Exe)
Extracted files:
44
AV detection:
17 of 26 (65.38%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=n5pucl2badeiziluu3bvxmoa5entmz4cvsd6zvdvdwktfgkb5ama._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/220925-crwwqaebem/
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
Creates new service(s)
Executes dropped EXE
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
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/f781a053-cb81-4161-8add-fc145a89a4de
Unpacked files
SH256 hash:
ff61a7b3b030bf91ea6652ac3cd02c0322d99dea711605f5640082f94c654122
MD5 hash:
3c0d9ffa5274d05850052f66406b0a87
SHA1 hash:
31ba7414058e80d226bf8be95206bd2183c86c1b
Detections:
win_tofsee_w0
Create hunting rule
Link:
https://www.unpac.me/results/e9aa7d6a-c3d9-4ce1-a9f4-06211f8554b4/
Parent samples :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 hash:
6f5f412f4100c88ca174a6c35bb1c0e91b366782ac87ecd4751d95329941e818
MD5 hash:
b44b9f4497332c165effe7e5aebbe4d9
SHA1 hash:
2691cd88c4ae2c351cd292a551da798f6023440e
Link:
https://www.unpac.me/results/e9aa7d6a-c3d9-4ce1-a9f4-06211f8554b4/
Malware family:
XMRig
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/6f5f412f4100/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/6f5f412f4100c88ca174a6c35bb1c0e91b366782ac87ecd4751d95329941e818

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: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

Tofsee

Executable exe 6f5f412f4100c88ca174a6c35bb1c0e91b366782ac87ecd4751d95329941e818

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/313031/
  
URLhaus
https://urlhaus.abuse.ch/url/2275563/

Comments


Avatar
zbet commented on 2022-09-25 02:19:16 UTC

url : hxxp://176.113.115.153:9080/13.php