MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8ca00f20b85ec96622ad809e4ac830a5b055129e526ce9d1d13dc747824615e5. 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: 9


Intelligence 9 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8ca00f20b85ec96622ad809e4ac830a5b055129e526ce9d1d13dc747824615e5
SHA3-384 hash: 3b0df181531b2394317d8c95c0de67d77065fec3435a4366e2a2e1629df126f2501d1cd1c6bbbf11401624001788f435
SHA1 hash: e8d72737e6bfafb0ef60cafabf3db2c7c112af70
MD5 hash: 14328666641095757ef647b785a7f8aa
humanhash: florida-massachusetts-kansas-hamper
File name:8ca00f20b85ec96622ad809e4ac830a5b055129e526ce9d1d13dc747824615e5
Download: download sample
Signature Tofsee
Create hunting rule
File size:118'784 bytes
First seen:2020-11-15 22:53:42 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash ac1910c5481750c818a3ab6c727602c1 (6 x Tofsee)
ssdeep 3072:u2W2fonh2dsssskFh5z184wp1+o75EZZ/PHKRj:Zxfoh2dssssKpgp1+25CZ/4
Threatray 95 similar samples on MalwareBazaar
TLSH 68C3C0532E11C8EDCE3A1F7D4999C251489FF4F226C00232F6E45676EB345D60DEACAA
Reporter seifreed
Tags:Tofsee

Intelligence

File Origin
# of uploads :
1
# of downloads :
932
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
Win.Dropper.Tofsee-8989051-1
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a file in the %temp% directory
Running batch commands
Creating a process with a hidden window
Moving a file to the Windows subdirectory
Launching a process
Creating a service
Launching the process to change the firewall settings
Launching a service
Creating a process from a recently created file
DNS request
Connection attempt
Enabling autorun for a service
Unauthorized injection to a system process
Deleting of the original file
Adding exclusions to Windows Defender
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.
Result
Threat name:
Tofsee
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/538143
Signature
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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
Modifies the windows firewall
Multi AV Scanner detection for submitted file
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: 318170 Sample: IFSJ609fOq Startdate: 16/11/2020 Architecture: WINDOWS Score: 100 53 microsoft-com.mail.protection.outlook.com 2->53 61 Antivirus detection for dropped file 2->61 63 Antivirus / Scanner detection for submitted sample 2->63 65 Multi AV Scanner detection for submitted file 2->65 67 7 other signatures 2->67 8 cqdppltv.exe 2->8         started        11 IFSJ609fOq.exe 2 2->11         started        14 svchost.exe 2->14         started        16 8 other processes 2->16 signatures3 process4 dnsIp5 73 Detected unpacking (changes PE section rights) 8->73 75 Detected unpacking (overwrites its own PE header) 8->75 77 Writes to foreign memory regions 8->77 81 2 other signatures 8->81 19 svchost.exe 1 8->19         started        47 C:\Users\user\AppData\Local\...\cqdppltv.exe, PE32 11->47 dropped 23 netsh.exe 3 11->23         started        25 cmd.exe 1 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        49 127.0.0.1 unknown unknown 16->49 51 192.168.2.1 unknown unknown 16->51 file6 signatures7 process8 dnsIp9 55 43.231.5.6, 465 GIGABIT-MYGigabitHostingSdnBhdMY Malaysia 19->55 57 103.248.137.133, 465 DNC-ASDimensionNetworkCommunicationLimitedHK Hong Kong 19->57 59 microsoft-com.mail.protection.outlook.com 104.47.53.36, 25, 49717, 49754 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 19->59 69 System process connects to network (likely due to code injection or exploit) 19->69 71 Deletes itself after installation 19->71 33 conhost.exe 23->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        signatures10 process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8ca00f20b85ec96622ad809e4ac830a5b055129e526ce9d1d13dc747824615e5/
Threat name:
Win32.Trojan.Fugrafa
Create hunting rule
Status:
Malicious
First seen:
2020-11-15 22:54:43 UTC
AV detection:
26 of 28 (92.86%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rsqa6ifyl3ewmivnqcpevsbquwyfkeu6kjwotuorhxdupasgcxsq._file
Verdict:
malicious
Similar samples:
3e60d1ad0f14c5741b1cc034d406134f893ea0b29dc1c1b48f1d5988de41d42a
Tofsee
575e8f38cfb2015941a558082390e1f02c7318bd0d6b82261065bd3839123bf8
Tofsee
5fbaa23d2582ceb705d33ad7256d687e8e6d924dfa2854388069932fabac1650
Tofsee
66d8a58d332aad489374ab5678d81540b2f3c838c2d4078abd99e28fe6a69fb0
Tofsee
6b2eb0949d00fd9c42298b9458a56ce9dd189f72b2e30b76306d7f0f0ffc6819
Tofsee
7543b3353b4f66e0acd8c5030ef74e9cfa55559994652b8dc88d3a1b2819a31f
Tofsee
849fd8ff6b9721a75a89c640d4ec6532a4078bf22e24af896daeda1bb1a87dae
Tofsee
9919830976415014ee79a70a30a9831ed5c97207318b976bca2781f8354a1442
Tofsee
ba227cfc4b73372ffcd726cf935645bd691e4e6c084eade585f73e15d1f649aa
Tofsee
bf036cfa9246486e80f39515cba5fcfddbd00e917d88a398ca2d2ac9187a8273
Tofsee
+ 85 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  10/10
Tags:
evasion persistence trojan
Link:
https://tria.ge/reports/201115-132gvmh9sa/
Behaviour
Suspicious use of WriteProcessMemory
Launches sc.exe
Modifies service
Suspicious use of SetThreadContext
Deletes itself
Creates new service(s)
Executes dropped EXE
Modifies Windows Firewall
Sets service image path in registry
Windows security bypass
Unpacked files
SH256 hash:
8ca00f20b85ec96622ad809e4ac830a5b055129e526ce9d1d13dc747824615e5
MD5 hash:
14328666641095757ef647b785a7f8aa
SHA1 hash:
e8d72737e6bfafb0ef60cafabf3db2c7c112af70
Link:
https://www.unpac.me/results/51a37a59-a245-4173-acaa-aa99953e3d47/
SH256 hash:
df8c1ae5914e92541f30f1e85f0e3b1ac58fd09390c5a65bb8e8620cbd79adbe
MD5 hash:
9db35c94fc9f831cec414f04d642b8b8
SHA1 hash:
6a2c40d7696fd6d1ac2a0f3f5d611d873e9615d7
Detections:
win_tofsee_w0
Create hunting rule
Link:
https://www.unpac.me/results/51a37a59-a245-4173-acaa-aa99953e3d47/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.76
Link:
https://yomi.yoroi.company/submissions/8ca00f20b85ec96622ad809e4ac830a5b055129e526ce9d1d13dc747824615e5

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.

  
Delivery method
Other

Comments