MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5d79e81b0646780b04099e4fe9b4805a97d2ae818443d644a87905dc40cd9e68. 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 9 File information Comments
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SHA256 hash: 5d79e81b0646780b04099e4fe9b4805a97d2ae818443d644a87905dc40cd9e68
SHA3-384 hash: 547a3b580c3c159527e351a0d7229ff7e16f20913e2a4fdba5dbb71c5c4511d7cb203ad784e0b36ae9c61c4afd4cb509
SHA1 hash: b9f141f01d91b3ba5f89a12c220ef2e9851ecae1
MD5 hash: b7b31bb756686ac7b250f34b6be4d90b
humanhash: two-hawaii-enemy-kitten
File name:b7b31bb756686ac7b250f34b6be4d90b.exe
Download: download sample
Signature Tofsee
Create hunting rule
File size:11'918'336 bytes
First seen:2022-02-26 08:10:54 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 735254e3bb9356ded1ec2c9643683f77 (1 x RaccoonStealer, 1 x ArkeiStealer, 1 x Tofsee)
ssdeep 12288:vQBjcuc5fLGb7UGb7UGb7UGb7UGb7UGb7UGb7UGb7UGb7UGb7UGb7UGb7UGb7UGn:GAuc5
Threatray 247 similar samples on MalwareBazaar
TLSH T1C7C649C066D1DC75D5E17E719972CAE8D53AFC82EB11963A32383A0F28BE7D11D61322
File icon (PE):PE icon
dhash icon fcfcb4d4d4d4d8c0 (70 x RedLineStealer, 59 x RaccoonStealer, 24 x Smoke Loader)
Reporter abuse_ch
Tags:exe Tofsee

Intelligence

File Origin
# of uploads :
1
# of downloads :
617
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Tofsee
Create hunting rule
Link:
https://www.capesandbox.com/analysis/244890/
Detection(s):
Win.Trojan.Generic-9935605-0
Create hunting rule

Win.Malware.Tofsee-9936819-1
Create hunting rule

Win.Malware.Generic-9936856-0
Create hunting rule

Win.Exploit.Tofsee-9936857-0
Create hunting rule

Win.Malware.Tofsee-9936858-0
Create hunting rule

Win.Malware.Generic-9936886-0
Create hunting rule

Win.Malware.Generic-9936948-0
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 process from a recently created file
Creating a service
Sending a custom TCP request
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:
100%
Tags:
greyware
Link:
https://www.filescan.io/uploads/6219e09db94fb38cb40e6ceb/reports/e45f782b-a62a-439d-9d98-74889eca3294/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.
Gathering data
Result
Threat name:
Tofsee
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/946659
Signature
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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 malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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
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: 579137 Sample: AzmKqWVmqf.exe Startdate: 26/02/2022 Architecture: WINDOWS Score: 100 48 microsoft-com.mail.protection.outlook.com 2->48 58 Multi AV Scanner detection for domain / URL 2->58 60 Found malware configuration 2->60 62 Malicious sample detected (through community Yara rule) 2->62 64 11 other signatures 2->64 8 dautvdz.exe 2->8         started        11 AzmKqWVmqf.exe 2 2->11         started        14 svchost.exe 9 1 2->14         started        17 4 other processes 2->17 signatures3 process4 dnsIp5 70 Detected unpacking (changes PE section rights) 8->70 72 Detected unpacking (overwrites its own PE header) 8->72 74 Writes to foreign memory regions 8->74 80 2 other signatures 8->80 19 svchost.exe 1 8->19         started        46 C:\Users\user\AppData\Local\...\dautvdz.exe, PE32 11->46 dropped 76 Uses netsh to modify the Windows network and firewall settings 11->76 78 Modifies the windows firewall 11->78 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 54 127.0.0.1 unknown unknown 14->54 56 192.168.2.1 unknown unknown 14->56 file6 signatures7 process8 dnsIp9 50 microsoft-com.mail.protection.outlook.com 104.47.54.36, 25, 49752, 49823 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 19->50 52 patmushta.info 35.228.103.145, 443, 49753, 49765 GOOGLEUS United States 19->52 66 System process connects to network (likely due to code injection or exploit) 19->66 68 Deletes itself after installation 19->68 44 C:\Windows\SysWOW64\...\dautvdz.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/5d79e81b0646780b04099e4fe9b4805a97d2ae818443d644a87905dc40cd9e68/
Threat name:
Win32.Ransomware.StopCrypt
Create hunting rule
Status:
Malicious
First seen:
2022-02-22 05:46:00 UTC
File Type:
PE (Exe)
Extracted files:
34
AV detection:
37 of 43 (86.05%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=lv46qgygiz4awbajtzh6tnealkl5flubqrb5mrfipec5yqgntzua._file
Verdict:
malicious
Similar samples:
3db9a9633bb3097ee7f34cd85bbc168ed3a59496c0c407cf1d22087d58fa2763
Tofsee
4cb27107153be0d305e8d3452a8d665fdc2567e1f38f5e042c2b73987fad7106
Tofsee
4fb79897fd57ac7d1724c92ef26e493e15d974f83c2c7f6e72af4f6e8084ff20
Tofsee
5bcda175ec4a33a6de0c387ae0867977d040e243ec15d2f4998ff6f40a468ce6
Tofsee
5d84be18669beb78b0993523cbaf3e66f352ce34888a6f63245290ca02436785
Tofsee
63f55d940203d80cb3ae2b759bf20406a2061c29236441fc1690ee51b97081df
Tofsee
abffa8a6fc90178764f519e4dc44f45b94c4632a146a517c77037eaa7ac887c0
Tofsee
b0f36d66181f49b3626c65dfe300c35677a7649842468cd274317fba2abf1329
Tofsee
f6ca96e0301249fbada0e52bcd3c9b2b6ee0cec95f13e8984ef747d513651fc9
Tofsee
+ 237 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/220226-j3a7qabdbl/
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
Legitimate hosting services abused for malware hosting/C2
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:
patmushta.info
ovicrush.cn
Unpacked files
SH256 hash:
2a0136875f26961b7dd057eb51511da1af53257d2faaa0e04b6ee80e5dfa0901
MD5 hash:
fcb400ce56c2e2d8d5ed66aedfa07028
SHA1 hash:
350a4e2b3dafba173af0b04980df31be9d3193a4
Detections:
win_tofsee_w0
Create hunting rule
Link:
https://www.unpac.me/results/763f162a-7808-4923-a8c7-bef968e2825b/
Parent samples :
7872562982688229ba9bcf6b09cd7282229da0b0690aec62c163e43fcb305631
3710148e7676d904f8b7626c4275ef85777ec3ec99d354246c8d3c5663c6961a
4fb79897fd57ac7d1724c92ef26e493e15d974f83c2c7f6e72af4f6e8084ff20
8c505862e16dd60fe08e63fd75b3460f21201f77c19d0c4793a68a7b35f5f2e5
5d79e81b0646780b04099e4fe9b4805a97d2ae818443d644a87905dc40cd9e68
aee866c403304b93df8b255fb452ec1a25b9115bc8357489e42a2498b065d6e7
SH256 hash:
5d79e81b0646780b04099e4fe9b4805a97d2ae818443d644a87905dc40cd9e68
MD5 hash:
b7b31bb756686ac7b250f34b6be4d90b
SHA1 hash:
b9f141f01d91b3ba5f89a12c220ef2e9851ecae1
Link:
https://www.unpac.me/results/763f162a-7808-4923-a8c7-bef968e2825b/
Malware family:
XMRIG
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/5d79e81b0646/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/5d79e81b0646780b04099e4fe9b4805a97d2ae818443d644a87905dc40cd9e68

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:CoinMiner_Strings
Create hunting rule
Author:Florian Roth
Description:Detects mining pool protocol string in Executable
Reference:https://minergate.com/faq/what-pool-address
Rule name:MALWARE_Win_Tofsee
Create hunting rule
Author:ditekSHen
Description:Detects Tofsee
Rule name:MAL_XMR_Miner_May19_1
Create hunting rule
Author:Florian Roth
Description:Detects Monero Crypto Coin Miner
Reference:https://www.guardicore.com/2019/05/nansh0u-campaign-hackers-arsenal-grows-stronger/
Rule name:MAL_XMR_Miner_May19_1_RID2E1B
Create hunting rule
Author:Florian Roth
Description:Detects Monero Crypto Coin Miner
Reference:https://www.guardicore.com/2019/05/nansh0u-campaign-hackers-arsenal-grows-stronger/
Rule name:MINER_monero_mining_detection
Create hunting rule
Author:Trellix ATR team
Description:Monero mining software
Rule name:PUA_Crypto_Mining_CommandLine_Indicators_Oct21
Create hunting rule
Author:Florian Roth
Description:Detects command line parameters often used by crypto mining software
Reference:https://www.poolwatch.io/coin/monero
Rule name:win_tofsee_w0
Create hunting rule
Author:akrasuski1
Rule name:XMRIG_Monero_Miner
Create hunting rule
Author:Florian Roth
Description:Detects Monero mining software
Reference:https://github.com/xmrig/xmrig/releases
Rule name:XMRIG_Monero_Miner_RID2DC1
Create hunting rule
Author:Florian Roth
Description:Detects Monero mining software
Reference:https://github.com/xmrig/xmrig/releases

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/244890/

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