MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f6a6b1887797aa19c0eeb48b1c615d1833d2d309c92688821b2405e0fc4432ec. 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


CoinMiner


Vendor detections: 8


Intelligence 8 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f6a6b1887797aa19c0eeb48b1c615d1833d2d309c92688821b2405e0fc4432ec
SHA3-384 hash: 5fc49e6a1c05cc48a1a455a03a67feaee5bcea3a403c5fc344e9e805a4027f57628ecb276e8a848b33393dcfdbbba2f9
SHA1 hash: 5b65ff066615d8ddbd0e1fdbe7b3276a6d7c5adf
MD5 hash: 7229ba615c02e1960fb6979251118b5c
humanhash: edward-cold-thirteen-romeo
File name:f6a6b1887797aa19c0eeb48b1c615d1833d2d309c92688821b2405e0fc4432ec
Download: download sample
Signature CoinMiner
Create hunting rule
File size:15'383'552 bytes
First seen:2020-11-07 17:19:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 0bdef4d92a94790d7d279561a490c5bb (45 x Tofsee, 26 x CoinMiner)
ssdeep 6144:/6ZVCogpNu70QpIozzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzr:885Ny0Qp
Threatray 7 similar samples on MalwareBazaar
TLSH 12F62A29847B28F5C670107CF78C7B7EAAFD06F49EB4015B689C97C1E4289D454ECAA3
Reporter seifreed
Tags:CoinMiner

Intelligence

File Origin
# of uploads :
1
# of downloads :
182
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
Win.Trojan.Tofsee-6840338-0
Create hunting rule

Win.Trojan.Tofsee-7102058-0
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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/f6a6b1887797aa19c0eeb48b1c615d1833d2d309c92688821b2405e0fc4432ec/
Threat name:
Win32.Backdoor.Tofsee
Create hunting rule
Status:
Malicious
First seen:
2020-11-07 17:26:21 UTC
AV detection:
27 of 29 (93.10%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=62tldcdxs6vbtqhowsfryyk5daz5fuyjzetiraq3eqc6b7ceglwa._file
Verdict:
malicious
Similar samples:
0e4e902b30a99c179a586c7fd3e27b1fe0b7f1cf5397cb4ee9f056a4fa547b5b
CoinMiner
168126935e0aed6cf66c686aeaf8a183428133923ffdb2b78538f407060363b0
CoinMiner
5cd9ff29454e84923d4178484ecfb3bc48561d4401fa94b98f9d2693d47a740a
CoinMiner
8fcb2057bdac3ba88cb811c44a0d79358075525506b1517c3e713aec8d31a666
CoinMiner
ba227cfc4b73372ffcd726cf935645bd691e4e6c084eade585f73e15d1f649aa
CoinMiner
f5c60cf3334fc3093cb2b7b6bcfa480bf87a74b4edd8830b97c1ee3b3e66cefd
CoinMiner
fff57207bf2d6326bc580cd9788e36ec52437e472d26d49c015685525415d7ee
CoinMiner
Result
Malware family:
tofsee
Create hunting rule
Score:
  10/10
Tags:
family:tofsee evasion persistence trojan
Link:
https://tria.ge/reports/201108-g8t2zczthx/
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
Creates new service(s)
Executes dropped EXE
Modifies Windows Firewall
Sets service image path in registry
Tofsee
Windows security bypass
Unpacked files
SH256 hash:
f6a6b1887797aa19c0eeb48b1c615d1833d2d309c92688821b2405e0fc4432ec
MD5 hash:
7229ba615c02e1960fb6979251118b5c
SHA1 hash:
5b65ff066615d8ddbd0e1fdbe7b3276a6d7c5adf
Detections:
win_tofsee_w0
Create hunting rule
Link:
https://www.unpac.me/results/4e0b7ee0-399b-495e-902e-787e69c0edd5/
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:Embedded_PE
Create hunting rule
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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