MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 699bfaaa7bca0993fe9970da0ad333d4cd21b4340f6b6a3c9bb795f892141b14. 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: 699bfaaa7bca0993fe9970da0ad333d4cd21b4340f6b6a3c9bb795f892141b14
SHA3-384 hash: 5076adabe9be314f169667beafe5cd8232276bc373962f32f7bcd566ff7fb08bd099c4c1410ce9edaf9e69ac5d376f21
SHA1 hash: 30c0855a8d8c8fe705170d4fe9df5c905acb5bc7
MD5 hash: ae31685444ce31734af8d485d1f08cc7
humanhash: michigan-whiskey-hot-six
File name:699bfaaa7bca0993fe9970da0ad333d4cd21b4340f6b6a3c9bb795f892141b14
Download: download sample
Signature Tofsee
Create hunting rule
File size:15'473'664 bytes
First seen:2020-11-10 11:39:03 UTC
Last seen:2024-07-24 15:22:51 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 2768139ec0eb35e781f0a0b938368391 (2 x Tofsee, 1 x CoinMiner)
ssdeep 24576:R4gSAxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxr:Rx
Threatray 29 similar samples on MalwareBazaar
TLSH 57F6284071A1EA86D7E20832B571F6B42172FCCAA861450A7DD8FF1B3973291EB9135F
Reporter seifreed
Tags:Tofsee

Intelligence

File Origin
# of uploads :
2
# of downloads :
93
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
Win.Packed.Generickdz-9785340-0
Create hunting rule

Win.Dropper.Glupteba-9786938-0
Create hunting rule

Win.Dropper.Tofsee-9787427-0
Create hunting rule

Win.Packed.Tofsee-9787289-1
Create hunting rule

Win.Packed.Tofsee-9787291-1
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Launching the default Windows debugger (dwwin.exe)
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
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.
Result
Threat name:
Tofsee
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/528704
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Yara detected Tofsee
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 313449 Sample: Jh1VPrlULL Startdate: 10/11/2020 Architecture: WINDOWS Score: 96 39 Antivirus detection for dropped file 2->39 41 Antivirus / Scanner detection for submitted sample 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 3 other signatures 2->45 7 Jh1VPrlULL.exe 2 2->7         started        11 svchost.exe 2->11         started        13 svchost.exe 1 2->13         started        process3 file4 37 C:\Users\user\AppData\Local\...\xokrihlp.exe, PE32 7->37 dropped 47 Detected unpacking (changes PE section rights) 7->47 49 Detected unpacking (overwrites its own PE header) 7->49 15 cmd.exe 1 7->15         started        17 cmd.exe 2 7->17         started        19 sc.exe 1 7->19         started        27 15 other processes 7->27 21 WerFault.exe 11->21         started        23 WerFault.exe 11->23         started        25 WerFault.exe 11->25         started        29 12 other processes 11->29 signatures5 process6 process7 31 conhost.exe 15->31         started        33 conhost.exe 17->33         started        35 conhost.exe 19->35         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/699bfaaa7bca0993fe9970da0ad333d4cd21b4340f6b6a3c9bb795f892141b14/
Threat name:
Win32.Trojan.Ymacco
Create hunting rule
Status:
Malicious
First seen:
2020-11-11 00:08:46 UTC
AV detection:
27 of 29 (93.10%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ngn7vkt3ziezh7uzodnavuzt2tgsdnbub5vwupe3w6k7requdmka._file
Verdict:
malicious
Similar samples:
0c3080ef33448167fc2b858db5ec7b2e4705cb12ca57119088892459ea0cc832
Tofsee
17831d6b96a1d60752b7031cf6307eb2ce6db23204991b7c6411f50f0ee99621
Tofsee
587f79f301d6ca9ad6a02642cf6ebfbce12b3eaa524ecd67834ca1314447c4da
Tofsee
753ace1bff4069f22d20bf3a205b7205e922da38e0c82495fae6b78fd376fc34
Tofsee
7acd5433727ae9ca0e7a0ca24f70c1d15d354d8162485ad2f0a3f3e76f311914
Tofsee
8d64110a77ed9fe2d9454816668d95ed000442a34bb558ca0447ebd8c08b30ba
Tofsee
8fcb2057bdac3ba88cb811c44a0d79358075525506b1517c3e713aec8d31a666
Tofsee
90ab735f3e99db675bbc2913b1f34ef7bd72636222ae8b2a2b5e4de01c2e2dea
Tofsee
d75741013d7ee0596d2fc4d94087a29fe6b8da3700318f011fb6b7e1615eef21
Tofsee
f5c60cf3334fc3093cb2b7b6bcfa480bf87a74b4edd8830b97c1ee3b3e66cefd
Tofsee
+ 19 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-ar1y8j4mce/
Behaviour
Modifies data under HKEY_USERS
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Launches sc.exe
Drops file in System32 directory
Modifies service
Suspicious use of SetThreadContext
Looks up external IP address via web service
Deletes itself
Creates new service(s)
Executes dropped EXE
Modifies Windows Firewall
Sets service image path in registry
Tofsee
Windows security bypass
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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