MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4f140797fa904582e8422edd3bc1c661b72a1a1ee23a329173017e20901e25ca. 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 1 File information Comments 1
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SHA256 hash: 4f140797fa904582e8422edd3bc1c661b72a1a1ee23a329173017e20901e25ca
SHA3-384 hash: f28ed673cedc8cbc0dc699ae99b61829a94463af4b0fc835b903a7b38030fb89a2b713b2b1179a1d5d587759906749f2
SHA1 hash: 73a88c1712d1c91731f7557c4a023b1599c5ac6c
MD5 hash: e7f606299a819430be235ed185050de1
humanhash: iowa-alpha-twelve-fourteen
File name:e7f606299a819430be235ed185050de1
Download: download sample
Signature Tofsee
Create hunting rule
File size:322'048 bytes
First seen:2021-11-28 17:37:26 UTC
Last seen:2021-11-28 19:38:44 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 3f0b538abbe574275afcdf5200fd4d28 (2 x RedLineStealer, 1 x Tofsee, 1 x ArkeiStealer)
ssdeep 6144:AxDST8m6GgAS/bMEDr6dYW+SXuZet0ySwJA2py2KithNTye70s:IGgtzMEDr6dYW+SXuZet0ySwJw2RHTxo
Threatray 179 similar samples on MalwareBazaar
TLSH T125648E1C67A0C438F4B746B899B9D3B9793E79A16B2890CF52D117EE56396E0DC3030B
File icon (PE):PE icon
dhash icon 5012b0f068696c46 (2 x Smoke Loader, 1 x CryptBot, 1 x RedLineStealer)
Reporter zbetcheckin
Tags:32 exe Tofsee

Intelligence

File Origin
# of uploads :
2
# of downloads :
726
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
e7f606299a819430be235ed185050de1
Verdict:
Malicious activity
Analysis date:
2021-11-28 17:39:20 UTC
Tags:
trojan tofsee miner
Link:
https://app.any.run/tasks/bbe1aaed-858f-45b9-a1de-5e2434d3029f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.Siggen15.56578.24732.10315.UNOFFICIAL
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
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)
DNS request
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 packed
Link:
https://www.filescan.io/uploads/61a3be7fc4c5314148207560/reports/77dc25e0-314b-4ad0-84ef-ef3442c4d584/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/0aa70a41-623a-43a6-8eb7-c922d9c2adea
Result
Threat name:
Tofsee
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/897465
Signature
Allocates memory in foreign processes
Antivirus detection for dropped file
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
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
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: 529943 Sample: lYzhcZkVjT Startdate: 28/11/2021 Architecture: WINDOWS Score: 100 51 microsoft-com.mail.protection.outlook.com 2->51 57 Multi AV Scanner detection for domain / URL 2->57 59 Found malware configuration 2->59 61 Antivirus detection for dropped file 2->61 63 9 other signatures 2->63 8 sxwukqzo.exe 2->8         started        11 lYzhcZkVjT.exe 2 2->11         started        14 svchost.exe 2->14         started        16 6 other processes 2->16 signatures3 process4 file5 69 Detected unpacking (changes PE section rights) 8->69 71 Detected unpacking (overwrites its own PE header) 8->71 73 Writes to foreign memory regions 8->73 81 2 other signatures 8->81 18 svchost.exe 1 8->18         started        49 C:\Users\user\AppData\Local\...\sxwukqzo.exe, PE32 11->49 dropped 75 Uses netsh to modify the Windows network and firewall settings 11->75 77 Modifies the windows firewall 11->77 22 cmd.exe 1 11->22         started        25 netsh.exe 3 11->25         started        27 cmd.exe 2 11->27         started        31 3 other processes 11->31 79 Changes security center settings (notifications, updates, antivirus, firewall) 14->79 29 MpCmdRun.exe 1 14->29         started        signatures6 process7 dnsIp8 53 quadoil.ru 185.231.245.147, 443, 49751, 49789 TEAM-HOSTASRU Russian Federation 18->53 55 microsoft-com.mail.protection.outlook.com 104.47.53.36, 25, 49750 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 18->55 65 System process connects to network (likely due to code injection or exploit) 18->65 67 Deletes itself after installation 18->67 47 C:\Windows\SysWOW64\...\sxwukqzo.exe (copy), PE32 22->47 dropped 33 conhost.exe 22->33         started        35 conhost.exe 25->35         started        37 conhost.exe 27->37         started        39 conhost.exe 29->39         started        41 conhost.exe 31->41         started        43 conhost.exe 31->43         started        45 conhost.exe 31->45         started        file9 signatures10 process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4f140797fa904582e8422edd3bc1c661b72a1a1ee23a329173017e20901e25ca/
Threat name:
Win32.Backdoor.Tofsee
Create hunting rule
Status:
Malicious
First seen:
2021-11-27 11:29:21 UTC
File Type:
PE (Exe)
Extracted files:
14
AV detection:
29 of 45 (64.44%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=j4kapf72sbcyf2ccf3otxqogmg3sugq64i5dfeltaf7cbea6exfa._file
Verdict:
malicious
Similar samples:
07056777e640806a058f582772f441ff608ff7b1f8bd69d20943acf35b266a2d
Tofsee
1a233cd70753a0c450148f0df3dc5881ef7b5bc7449a2da7da4bffa7f3d959b4
Tofsee
1ae374502df9e63ab3d4b3bc2611b0758f97285c3eb49d58713fd654ed9ab756
Tofsee
1dfb58a81f3624b21eb10ce87795e1aa2b3fd928ae83f7c52a37d6cb19e25cf8
Tofsee
700f94a34591e321bba41a65fe6ad2d273d245381a64b8733898804c286ce4a8
Tofsee
84839e5c70038104b4d9fbf20988ebc952ea698be6d46c0ad5ed072897427b3f
Tofsee
cfcb21c8c129c8c2c525ecfac8bd883260eda6038e3991210765e582007451dd
Tofsee
+ 169 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/211128-v7qczsabep/
Behaviour
Modifies data under HKEY_USERS
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Launches sc.exe
Drops file in System32 directory
Suspicious use of SetThreadContext
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:
quadoil.ru
lakeflex.ru
Unpacked files
SH256 hash:
448e8aeb2dcd412f100bd4271b6bc0f87d6922877f96d874d74144ec811de88c
MD5 hash:
40f53a7b73d2d93a204c3a74367fb4c2
SHA1 hash:
39e2dcabc45f28f8d6ec36027032d40060abb047
Detections:
win_tofsee_w0
Create hunting rule
Link:
https://www.unpac.me/results/629a40aa-2053-4ca8-a86b-0aa2d33153a5/
Parent samples :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 hash:
4f140797fa904582e8422edd3bc1c661b72a1a1ee23a329173017e20901e25ca
MD5 hash:
e7f606299a819430be235ed185050de1
SHA1 hash:
73a88c1712d1c91731f7557c4a023b1599c5ac6c
Link:
https://www.unpac.me/results/629a40aa-2053-4ca8-a86b-0aa2d33153a5/
Malware family:
XMRIG
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/4f140797fa90/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/4f140797fa904582e8422edd3bc1c661b72a1a1ee23a329173017e20901e25ca

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: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 4f140797fa904582e8422edd3bc1c661b72a1a1ee23a329173017e20901e25ca

(this sample)

  
Delivery method
Distributed via web download

Comments


Avatar
zbet commented on 2021-11-28 17:37:27 UTC

url : hxxp://192.162.246.70/6.php