MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4920be91a748cc95ee4d3e543361e0cbb7ca5183ca289b31005dd450f7136459. 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: 7


Intelligence 7 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4920be91a748cc95ee4d3e543361e0cbb7ca5183ca289b31005dd450f7136459
SHA3-384 hash: 636e7a0ba5f38f8d32f8eae0b5ccbc71a2be5c941bb61fb41c76af360825ff9689bd7ba20be0e0966ed4413afd386ad0
SHA1 hash: 182223642e4b6e30e4714b0d5aa10c2772f10046
MD5 hash: beb7bd8057bd67debf50901b6e19b6a8
humanhash: virginia-pizza-uniform-ack
File name:4920be91a748cc95ee4d3e543361e0cbb7ca5183ca289b31005dd450f7136459
Download: download sample
Signature Tofsee
Create hunting rule
File size:10'980'352 bytes
First seen:2020-11-12 14:03:21 UTC
Last seen:2024-07-24 13:51:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 0bdef4d92a94790d7d279561a490c5bb (45 x Tofsee, 26 x CoinMiner)
ssdeep 6144:S/hVCy9au2NgpIeBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBF:483TNgp
Threatray 54 similar samples on MalwareBazaar
TLSH 6EB63C69807B24F5C6B0107CF78C7B7EEAFD45F4AEB4015B688C97C1A4289D454ECAA3
Reporter seifreed
Tags:Tofsee

Intelligence

File Origin
# of uploads :
2
# of downloads :
777
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
Win.Trojan.Tofsee-6840338-0
Create hunting rule

Win.Trojan.Tofsee-7102058-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
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
Creating a file in the Windows subdirectories
Sending a custom TCP request
Sending an HTTP GET request
Enabling autorun for a service
Sending a TCP request to an infection source
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.
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4920be91a748cc95ee4d3e543361e0cbb7ca5183ca289b31005dd450f7136459/
Threat name:
Win32.Backdoor.Tofsee
Create hunting rule
Status:
Malicious
First seen:
2020-11-12 14:04:39 UTC
AV detection:
27 of 29 (93.10%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jeql5enhjdgjl3snhzkdgypazo34uumdziujwmialxkfb5ytmrmq._file
Verdict:
malicious
Similar samples:
0c3080ef33448167fc2b858db5ec7b2e4705cb12ca57119088892459ea0cc832
Tofsee
142e511e48d143633a5f4ab5ae5e1761b3912f5b3202e79ce8c3df71a930f62a
Tofsee
250e0338d50cf0cc388cdf0732d6a58576995ac5d74bebd9d45632450413c9a0
Tofsee
44f594024494625649be0d2d74952929493edbba4c852082ff864511e6f450a3
Tofsee
575a4ea0536e74d52c4dbd55a5f55563cf04e9f553d9a433caf0dc651800d022
Tofsee
7acd5433727ae9ca0e7a0ca24f70c1d15d354d8162485ad2f0a3f3e76f311914
Tofsee
8d64110a77ed9fe2d9454816668d95ed000442a34bb558ca0447ebd8c08b30ba
Tofsee
b63c10b77dd1bc652096d6ddb4616ff5269ce895bba9c71668839fad954dde6d
Tofsee
bac50bcd3650dd1fe39d3bb59c4501e14c3f95a52ed163d3fc2270a71946d309
Tofsee
ec026105f3a276efc877a94b232a8ba83eee9be51457296d2f5c6bd5f62583f7
Tofsee
+ 44 additional samples on MalwareBazaar
Unpacked files
SH256 hash:
4920be91a748cc95ee4d3e543361e0cbb7ca5183ca289b31005dd450f7136459
MD5 hash:
beb7bd8057bd67debf50901b6e19b6a8
SHA1 hash:
182223642e4b6e30e4714b0d5aa10c2772f10046
Detections:
win_tofsee_w0
Create hunting rule
Link:
https://www.unpac.me/results/0ea9592b-8af0-4938-92e7-10285a5a2f9b/
Please note that we are no longer able to provide a coverage score for Virus Total.

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: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:MINER_monero_mining_detection
Create hunting rule
Author:Christiaan Beek | McAfee ATR Team
Description:Monero mining software
Rule name:win_tofsee_w0
Create hunting rule
Author:akrasuski1
Rule name:XMRIG_Miner
Create hunting rule
Rule name:XMRIG_Monero_Miner
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.

  
Delivery method
Other

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