MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b63c10b77dd1bc652096d6ddb4616ff5269ce895bba9c71668839fad954dde6d. 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: 8


Intelligence 8 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b63c10b77dd1bc652096d6ddb4616ff5269ce895bba9c71668839fad954dde6d
SHA3-384 hash: 2ef6d74517293f663d7eb8b1a373c6aca0ce4457c1266d134a2f50dcb00cbe9f2ef58c620cdd34416efc11575a2ecf7d
SHA1 hash: 8fb44631f180db6008a063b2bcad226bd32e6ea6
MD5 hash: a86bc05335c16cde2cf5e4b8c40dd9f4
humanhash: hamper-west-alpha-potato
File name:b63c10b77dd1bc652096d6ddb4616ff5269ce895bba9c71668839fad954dde6d
Download: download sample
Signature Tofsee
Create hunting rule
File size:10'931'200 bytes
First seen:2020-11-10 11:12:32 UTC
Last seen:2024-07-24 20:38:46 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 0bdef4d92a94790d7d279561a490c5bb (45 x Tofsee, 26 x CoinMiner)
ssdeep 6144:w5VCc8pu+vcpIozzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzf:+8N7vcp
Threatray 20 similar samples on MalwareBazaar
TLSH F5B62A29847B28F5C670107CF78C7B7EAAFD06F49EB4015B689C97C1E4289D454ECAA3
Reporter seifreed
Tags:Tofsee

Intelligence

File Origin
# of uploads :
2
# of downloads :
81
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 a service
Creating a process from a recently created file
Launching the process to change the firewall settings
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/b63c10b77dd1bc652096d6ddb4616ff5269ce895bba9c71668839fad954dde6d/
Threat name:
Win32.Backdoor.Tofsee
Create hunting rule
Status:
Malicious
First seen:
2020-11-10 11:15:35 UTC
AV detection:
28 of 29 (96.55%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wy6bbn352g6gkiew23o3iylp6utjz2evxou4oftiqop23fkn3zwq._file
Verdict:
malicious
Similar samples:
0c3080ef33448167fc2b858db5ec7b2e4705cb12ca57119088892459ea0cc832
Tofsee
17831d6b96a1d60752b7031cf6307eb2ce6db23204991b7c6411f50f0ee99621
Tofsee
587f79f301d6ca9ad6a02642cf6ebfbce12b3eaa524ecd67834ca1314447c4da
Tofsee
59c50a429ba27538378b98c12fc53f34883c9a10c01329d07c3a56de11f09e46
Tofsee
8d64110a77ed9fe2d9454816668d95ed000442a34bb558ca0447ebd8c08b30ba
Tofsee
8fcb2057bdac3ba88cb811c44a0d79358075525506b1517c3e713aec8d31a666
Tofsee
90ab735f3e99db675bbc2913b1f34ef7bd72636222ae8b2a2b5e4de01c2e2dea
Tofsee
af21217ee5523873bc4ee3b262ce06a371a1095abfea9729e3413cf9da1a0cab
Tofsee
f5c60cf3334fc3093cb2b7b6bcfa480bf87a74b4edd8830b97c1ee3b3e66cefd
Tofsee
f6a6b1887797aa19c0eeb48b1c615d1833d2d309c92688821b2405e0fc4432ec
Tofsee
+ 10 additional samples on MalwareBazaar
Result
Malware family:
tofsee
Create hunting rule
Score:
  10/10
Tags:
family:tofsee evasion persistence trojan
Link:
https://tria.ge/reports/201110-wwyhxn8jbx/
Behaviour
Modifies data under HKEY_USERS
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Launches sc.exe
Drops file in System32 directory
Modifies service
Suspicious use of SetThreadContext
Looks up external IP address via web service
Deletes itself
Executes dropped EXE
Modifies Windows Firewall
Sets service image path in registry
Creates new service(s)
Tofsee
Windows security bypass
Unpacked files
SH256 hash:
b63c10b77dd1bc652096d6ddb4616ff5269ce895bba9c71668839fad954dde6d
MD5 hash:
a86bc05335c16cde2cf5e4b8c40dd9f4
SHA1 hash:
8fb44631f180db6008a063b2bcad226bd32e6ea6
Detections:
win_tofsee_w0
Create hunting rule
Link:
https://www.unpac.me/results/95e7621e-3b7f-4221-8d89-9b0faba3a5d4/
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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