MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8fc3150c1a665a902a55f53053966ee6782420059be6d0151efaf7eebaf48e73. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8fc3150c1a665a902a55f53053966ee6782420059be6d0151efaf7eebaf48e73
SHA3-384 hash: abe1fa381eb075a634c63a36fd332541ac922d1b5015132c7d0501cb848529b97da2edf51dad2fd791005583080d3e97
SHA1 hash: b9689fd84591cdacd382a52747216f9355d9210d
MD5 hash: f163008a2a146317dd57d5673712e3e3
humanhash: twenty-winter-september-foxtrot
File name:f163008a2a146317dd57d5673712e3e3
Download: download sample
Signature Tofsee
Create hunting rule
File size:244'224 bytes
First seen:2022-05-06 09:30:04 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 10a456ba773aa5674f588279bb93b7f3 (1 x Tofsee)
ssdeep 3072:kQUzXZObwWPF3y7zehh0YYMuDwEZ470uuh+SZN:NA+wWPNyfe0Md2Tuqh
TLSH T159349D2176E08032F6F31A315871D2956A7BB8E36BF0998F2B94166E1F316C17EB5313
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 38b078cccacccc43 (123 x Smoke Loader, 83 x Stop, 63 x RedLineStealer)
Reporter zbetcheckin
Tags:32 exe Tofsee

Intelligence

File Origin
# of uploads :
1
# of downloads :
1'110
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
http://62.204.41.46:8080/8.php
Verdict:
Malicious activity
Analysis date:
2022-04-29 20:44:42 UTC
Tags:
loader
Link:
https://app.any.run/tasks/f94576ec-2230-49af-8dda-5698d8a41fe7

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/269052/
Detection(s):
Win.Malware.Filerepmalware-9941437-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
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
Launching the default Windows debugger (dwwin.exe)
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun for a service
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/16518/overview
Behaviour
MalwareBazaar
MeasuringTime
SystemUptime
EvasionGetTickCount
CheckCmdLine
EvasionQueryPerformanceCounter
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware
Link:
https://www.filescan.io/uploads/6274eaa7be0219041a7391f3/reports/bfc6a1cc-f328-46f8-85c5-3583a0746d37/overview
Result
Verdict:
MALICIOUS
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/6e168e09-0203-4977-9412-e0a33ddf6303
Result
Threat name:
Tofsee
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/989012
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 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: 621508 Sample: DhcE30QZqs Startdate: 06/05/2022 Architecture: WINDOWS Score: 100 48 niflheimr.cn 2->48 50 microsoft-com.mail.protection.outlook.com 2->50 60 Multi AV Scanner detection for domain / URL 2->60 62 Found malware configuration 2->62 64 Malicious sample detected (through community Yara rule) 2->64 66 7 other signatures 2->66 8 itobowww.exe 2->8         started        11 DhcE30QZqs.exe 2 2->11         started        14 svchost.exe 9 1 2->14         started        17 5 other processes 2->17 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 82 2 other signatures 8->82 19 svchost.exe 1 8->19         started        46 C:\Users\user\AppData\Local\...\itobowww.exe, PE32 11->46 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        30 3 other processes 11->30 56 127.0.0.1 unknown unknown 14->56 58 192.168.2.1 unknown unknown 17->58 file6 signatures7 process8 dnsIp9 52 niflheimr.cn 193.233.205.135, 443, 49773, 49797 FREE-NET-ASFREEnetEU Russian Federation 19->52 54 microsoft-com.mail.protection.outlook.com 40.93.207.0, 25, 49772, 49883 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 19->54 68 System process connects to network (likely due to code injection or exploit) 19->68 70 Deletes itself after installation 19->70 44 C:\Windows\SysWOW64\...\itobowww.exe (copy), PE32 23->44 dropped 32 conhost.exe 23->32         started        34 conhost.exe 26->34         started        36 conhost.exe 28->36         started        38 conhost.exe 30->38         started        40 conhost.exe 30->40         started        42 conhost.exe 30->42         started        file10 signatures11 process12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8fc3150c1a665a902a55f53053966ee6782420059be6d0151efaf7eebaf48e73/
Threat name:
Win32.Trojan.RelineStealer
Create hunting rule
Status:
Malicious
First seen:
2022-04-28 17:47:29 UTC
File Type:
PE (Exe)
Extracted files:
14
AV detection:
36 of 42 (85.71%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=r7brkda2mznjaksv6uyfhfto4z4ciiaftptnafi67l365oxurzzq._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/220506-lghqsacddr/
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:
niflheimr.cn
jotunheim.name
Unpacked files
SH256 hash:
8a45b9fe9a64bef219d7bada4de2e61bd6daa96d913b1d0be5cb4faa83d4b70b
MD5 hash:
69126d6d1a71a666204535aa01e990f4
SHA1 hash:
970ead4d879aace069bf19c80928031df9af0dd1
Detections:
win_tofsee_w0
Create hunting rule
Link:
https://www.unpac.me/results/f6e56876-3ecd-4640-96c4-4d7cc3243bc6/
Parent samples :
8fd888d45037a4390dfa1675314acfd3184aed3386d34d2e3aec78aeb1b12cca
140a1853c2a319ccd4f2fd07cf1712a15adab77c81c66d01f876ef17806889c1
8fc3150c1a665a902a55f53053966ee6782420059be6d0151efaf7eebaf48e73
4cc8f23e22db5a8201474e9d46e986ad4772b8ea91c9e281242f2cb5f10dae0b
3ce8363d05d1015ebd88250aad7c26b2ec0383b3e8a1634aec0cd86900f29324
SH256 hash:
8fc3150c1a665a902a55f53053966ee6782420059be6d0151efaf7eebaf48e73
MD5 hash:
f163008a2a146317dd57d5673712e3e3
SHA1 hash:
b9689fd84591cdacd382a52747216f9355d9210d
Link:
https://www.unpac.me/results/f6e56876-3ecd-4640-96c4-4d7cc3243bc6/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8fc3150c1a66/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/8fc3150c1a665a902a55f53053966ee6782420059be6d0151efaf7eebaf48e73

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: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 8fc3150c1a665a902a55f53053966ee6782420059be6d0151efaf7eebaf48e73

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/269052/
  
URLhaus
https://urlhaus.abuse.ch/url/2051648/

Comments


Avatar
zbet commented on 2022-05-06 09:30:11 UTC

url : hxxp://62.204.41.46:8080/a.exe