MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f57855bf23ce70fccbad6dec4c7d9e97710f222f98dfa0141762d66e56b6192d. 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: 12


Intelligence 12 IOCs YARA 1 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f57855bf23ce70fccbad6dec4c7d9e97710f222f98dfa0141762d66e56b6192d
SHA3-384 hash: baf74b2a21b12fc9a7593954618c0e54d30a0636f19b781755b566f4c77d368e9c1bb1891cd59af6b21af8ba08d3ccd1
SHA1 hash: da239d9de0483bb24a62acbb92a96f98008e55fd
MD5 hash: 030d32c42f8d6eed949f5a40f835be2f
humanhash: apart-three-magnesium-bluebird
File name:030d32c42f8d6eed949f5a40f835be2f
Download: download sample
Signature CoinMiner
Create hunting rule
File size:343'552 bytes
First seen:2021-12-16 02:59:30 UTC
Last seen:2021-12-16 04:39:43 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 4bb8a39044d1acb8817ffc34236f365c (14 x RedLineStealer, 2 x ArkeiStealer, 1 x Tofsee)
ssdeep 6144:goVlxPH+5hD26j8vr3gbL3shpAArO3dSsT9cvU2:vVlxHB6j8vrQbLSAAriA
Threatray 181 similar samples on MalwareBazaar
TLSH T1FB749D00A6A1D435F5B312F85AB593BDA53F7AA16B3490CF13D016EA5B386E0EC3171B
File icon (PE):PE icon
dhash icon badacabecee6baa6 (95 x Stop, 87 x RedLineStealer, 62 x Smoke Loader)
Reporter zbetcheckin
Tags:32 CoinMiner exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
183
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/214422/
Detection(s):
SecuriteInfo.com.W32.AIDetect.malware1.5498.10231.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a file
Launching the process to change the firewall settings
Creating a service
Creating a process from a recently created file
Sending a custom TCP request
Launching a service
Launching the default Windows debugger (dwwin.exe)
DNS request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun for a service
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/2161/overview
Behaviour
MalwareBazaar
SystemUptime
MeasuringTime
CheckCmdLine
EvasionQueryPerformanceCounter
EvasionGetTickCount
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware
Link:
https://www.filescan.io/uploads/61baabb445ca64e57f131b7f/reports/a9dc19a7-f3a3-4d20-8898-63a67cf85aa3/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Tofsee
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2f483452-b158-4b69-8856-9223ef3e9a47
Result
Threat name:
Tofsee
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/908231
Signature
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
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
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Modifies the windows firewall
Sigma detected: Copying Sensitive Files with Credential Data
Sigma detected: Suspect Svchost Activity
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: 540709 Sample: FeqiGh80RW Startdate: 16/12/2021 Architecture: WINDOWS Score: 100 47 microsoft-com.mail.protection.outlook.com 2->47 53 Found malware configuration 2->53 55 Yara detected Tofsee 2->55 57 Sigma detected: Suspect Svchost Activity 2->57 59 6 other signatures 2->59 8 xtgsadel.exe 2->8         started        11 FeqiGh80RW.exe 2 2->11         started        14 svchost.exe 1 2->14         started        16 3 other processes 2->16 signatures3 process4 file5 65 Detected unpacking (changes PE section rights) 8->65 67 Detected unpacking (overwrites its own PE header) 8->67 69 Writes to foreign memory regions 8->69 75 2 other signatures 8->75 18 svchost.exe 1 8->18         started        45 C:\Users\user\AppData\Local\...\xtgsadel.exe, PE32 11->45 dropped 71 Uses netsh to modify the Windows network and firewall settings 11->71 73 Modifies the windows firewall 11->73 22 cmd.exe 1 11->22         started        25 netsh.exe 3 11->25         started        27 cmd.exe 2 11->27         started        29 3 other processes 11->29 signatures6 process7 dnsIp8 49 mubrikych.top 91.224.22.134, 443, 49778, 49793 AS-REGRU Russian Federation 18->49 51 microsoft-com.mail.protection.outlook.com 104.47.53.36, 25, 49777 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 18->51 61 System process connects to network (likely due to code injection or exploit) 18->61 63 Deletes itself after installation 18->63 43 C:\Windows\SysWOW64\...\xtgsadel.exe (copy), PE32 22->43 dropped 31 conhost.exe 22->31         started        33 conhost.exe 25->33         started        35 conhost.exe 27->35         started        37 conhost.exe 29->37         started        39 conhost.exe 29->39         started        41 conhost.exe 29->41         started        file9 signatures10 process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f57855bf23ce70fccbad6dec4c7d9e97710f222f98dfa0141762d66e56b6192d/
Threat name:
Win32.Backdoor.Tofsee
Create hunting rule
Status:
Malicious
First seen:
2021-12-16 03:00:09 UTC
File Type:
PE (Exe)
Extracted files:
19
AV detection:
23 of 27 (85.19%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6v4flpzdzzypzs5nnxwey7m6s5yq6irptdp2afaxmllg4vvwdewq._file
Verdict:
malicious
Similar samples:
0467d83ba3b0d1f7c09d3fa662383e261ea44ea866cdfa0c686eba4cc5a822f2
CoinMiner
0b46fd5f7c63d1e22e944ae3797994f06ccd6033d1eaa2dc6e82cc1d55ae9ad6
CoinMiner
1ae374502df9e63ab3d4b3bc2611b0758f97285c3eb49d58713fd654ed9ab756
CoinMiner
3abf5e573cbcc7b375436931ff07be0d9d13085cf6a14f9cde285a83e7ff528e
CoinMiner
8325ddbf8fc654039273c60aee91332ebf8d8896da1109f6abac422f910bddf9
CoinMiner
8fcb2057bdac3ba88cb811c44a0d79358075525506b1517c3e713aec8d31a666
CoinMiner
967692708e762fda8ecb0b971aa06e33bca0b9d97b22ac7ffe8297df40a136dd
CoinMiner
accec2b9024faec177cce64e4c19665ec27722e1aa976704c1b9e29ed21100d6
CoinMiner
b107df92ff500ba6ea60893330131d3365f30691593c0ab4719578ac3b44a14d
CoinMiner
eb7d2f18d5fc15bbdeb4da2d297db7ec72004f54a4a6ef8194c23d0651538a3f
CoinMiner
+ 171 additional samples on MalwareBazaar
Result
Malware family:
xmrig
Create hunting rule
Score:
  10/10
Tags:
family:tofsee family:xmrig evasion miner persistence trojan
Link:
https://tria.ge/reports/211216-dhbd4abbb6/
Behaviour
Modifies data under HKEY_USERS
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Launches sc.exe
Drops file in System32 directory
Suspicious use of SetThreadContext
Deletes itself
Creates new service(s)
Executes dropped EXE
Modifies Windows Firewall
Sets service image path in registry
XMRig Miner Payload
Tofsee
Windows security bypass
xmrig
Malware Config
C2 Extraction:
mubrikych.top
oxxyfix.xyz
Unpacked files
SH256 hash:
72ed24d8c2733d0095568505bf2fb6c9eb1877c1737c44d6e9527cd4d1eb01ee
MD5 hash:
683bd5e39814ff14f3abcef08cb179a2
SHA1 hash:
311689339a20bb1fe040c5caf553871a4a2a088b
Detections:
win_tofsee_w0
Create hunting rule
Link:
https://www.unpac.me/results/762766e5-5576-4485-9c75-37ed8b74520b/
Parent samples :
ee8c0eda3de0ce70a8b133b2c872541fc1d813536667acfd674f1f007365be75
56d1b5134ca256082b80214a7a7bbb3f486e8e8aabe95e17a83ae32dfad8e70b
3abf5e573cbcc7b375436931ff07be0d9d13085cf6a14f9cde285a83e7ff528e
f57855bf23ce70fccbad6dec4c7d9e97710f222f98dfa0141762d66e56b6192d
45fced29713e8dc96972faeab4f21ec670543c252ed824b358294e9b8270e496
SH256 hash:
f57855bf23ce70fccbad6dec4c7d9e97710f222f98dfa0141762d66e56b6192d
MD5 hash:
030d32c42f8d6eed949f5a40f835be2f
SHA1 hash:
da239d9de0483bb24a62acbb92a96f98008e55fd
Link:
https://www.unpac.me/results/762766e5-5576-4485-9c75-37ed8b74520b/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f57855bf23ce70fccbad6dec4c7d9e97710f222f98dfa0141762d66e56b6192d

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.

Web download

CoinMiner

Executable exe f57855bf23ce70fccbad6dec4c7d9e97710f222f98dfa0141762d66e56b6192d

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/214422/
  
URLhaus
https://urlhaus.abuse.ch/url/1889202/

Comments


Avatar
zbet commented on 2021-12-16 02:59:33 UTC

url : hxxp://185.7.214.171:8080/6.php