MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1a233cd70753a0c450148f0df3dc5881ef7b5bc7449a2da7da4bffa7f3d959b4. 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: 12


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

SHA256 hash: 1a233cd70753a0c450148f0df3dc5881ef7b5bc7449a2da7da4bffa7f3d959b4
SHA3-384 hash: a3b2fe537b3810ca131175dd216764d2874b7e51091be81a20190996ceefedf5854a18c00a48a6faef5dfa175845cca5
SHA1 hash: 93b183bda957d92112b17b4b6e9c4f3e6f1a8ef9
MD5 hash: b99632441466d549415fd1030450fad3
humanhash: twelve-december-helium-autumn
File name:b99632441466d549415fd1030450fad3
Download: download sample
Signature Tofsee
Create hunting rule
File size:278'528 bytes
First seen:2021-08-23 21:38:30 UTC
Last seen:2021-08-23 23:16:27 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 4dcb3c3a3fe5e134dd41266130cc79d2 (6 x RaccoonStealer, 4 x RedLineStealer, 3 x Tofsee)
ssdeep 6144:h4Ep4+Kmej3P/w9ajxNogYIaCaRl4MLDiZyjEwm:Np7Km6f/r0Y+llLDwyAwm
Threatray 132 similar samples on MalwareBazaar
TLSH T1DB447C30AB91C034E5F711F845B683B8A93A7AB16B7450CF52D52AEE46387E5EC30787
dhash icon ead8ac9cc6e68ee0 (118 x RaccoonStealer, 102 x RedLineStealer, 46 x Smoke Loader)
Reporter zbetcheckin
Tags:32 exe Tofsee

Intelligence

File Origin
# of uploads :
2
# of downloads :
545
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b99632441466d549415fd1030450fad3
Verdict:
Malicious activity
Analysis date:
2021-08-23 21:40:44 UTC
Tags:
miner
Link:
https://app.any.run/tasks/22893dd0-b807-474e-af85-64d5339969a0

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/181645/
Detection(s):
SecuriteInfo.com.Trojan.DownLoader41.25700.7421.24433.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching the process to change the firewall settings
DNS request
Connection attempt
Sending a custom TCP request
Creating a file in the Windows subdirectories
Sending a UDP request
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
Enabling autorun for a service
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.
Malware family:
Tofsee
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/fbe73bb9-1735-42a8-b459-c144c5bbfe7e
Result
Threat name:
Tofsee Xmrig
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad.mine
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/837843
Signature
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Creates files in alternative data streams (ADS)
Deletes itself after installation
Detected Stratum mining protocol
Detected unpacking (changes PE section rights)
Drops executables to the windows directory (C:\Windows) and starts them
Found malware configuration
Found strings related to Crypto-Mining
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies the windows firewall
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Send many emails (e-Mail Spam)
Sigma detected: Copying Sensitive Files with Credential Data
Sigma detected: Suspect Svchost Activity
Sigma detected: Suspicious Svchost Process
Sigma detected: Xmrig
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 470274 Sample: JgC7A84YOU Startdate: 23/08/2021 Architecture: WINDOWS Score: 100 58 pentairwater.com 2->58 60 wanadoo.fr 2->60 62 91 other IPs or domains 2->62 72 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->72 74 Sigma detected: Xmrig 2->74 76 Found malware configuration 2->76 80 14 other signatures 2->80 9 jsekuplb.exe 2->9         started        12 JgC7A84YOU.exe 2 2->12         started        15 svchost.exe 1 2->15         started        18 6 other processes 2->18 signatures3 78 System process connects to network (likely due to code injection or exploit) 60->78 process4 dnsIp5 92 Detected unpacking (changes PE section rights) 9->92 94 Writes to foreign memory regions 9->94 96 Allocates memory in foreign processes 9->96 98 Injects a PE file into a foreign processes 9->98 20 svchost.exe 4 1 9->20         started        54 C:\Users\user\AppData\Local\...\jsekuplb.exe, PE32 12->54 dropped 100 Uses netsh to modify the Windows network and firewall settings 12->100 102 Modifies the windows firewall 12->102 25 cmd.exe 1 12->25         started        27 netsh.exe 3 12->27         started        29 cmd.exe 2 12->29         started        31 3 other processes 12->31 70 127.0.0.1 unknown unknown 15->70 file6 signatures7 process8 dnsIp9 64 95.216.195.92, 429, 49714, 49734 HETZNER-ASDE Germany 20->64 66 live.co.uk 20->66 68 158 other IPs or domains 20->68 50 C:\Windows\SysWOW64\...\systemprofile:.repos, data 20->50 dropped 82 System process connects to network (likely due to code injection or exploit) 20->82 84 Creates files in alternative data streams (ADS) 20->84 86 Performs DNS queries to domains with low reputation 20->86 90 2 other signatures 20->90 33 svchost.exe 20->33         started        52 C:\Windows\SysWOW64\...\jsekuplb.exe (copy), PE32 25->52 dropped 36 conhost.exe 25->36         started        38 conhost.exe 27->38         started        40 conhost.exe 29->40         started        42 conhost.exe 31->42         started        44 conhost.exe 31->44         started        46 conhost.exe 31->46         started        file10 88 Detected Stratum mining protocol 64->88 signatures11 process12 dnsIp13 56 fastpool.xyz 213.91.128.133, 10060, 49733 BTC-ASBULGARIABG Bulgaria 33->56 48 conhost.exe 33->48         started        process14
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1a233cd70753a0c450148f0df3dc5881ef7b5bc7449a2da7da4bffa7f3d959b4/
Threat name:
Win32.Ransomware.StopCrypt
Create hunting rule
Status:
Malicious
First seen:
2021-08-23 21:39:06 UTC
AV detection:
20 of 46 (43.48%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=dirtzvyhkoqmiuaur4g7hxcyqhxxww6hisnc3j62jp72p46zlg2a._file
Verdict:
malicious
Similar samples:
07056777e640806a058f582772f441ff608ff7b1f8bd69d20943acf35b266a2d
Tofsee
0c3080ef33448167fc2b858db5ec7b2e4705cb12ca57119088892459ea0cc832
Tofsee
0c79433c9f2fcc386d54c67d3bf1a0c002d6dd74d32c4888b4a8450f13e7383f
Tofsee
587f79f301d6ca9ad6a02642cf6ebfbce12b3eaa524ecd67834ca1314447c4da
Tofsee
59c50a429ba27538378b98c12fc53f34883c9a10c01329d07c3a56de11f09e46
Tofsee
700f94a34591e321bba41a65fe6ad2d273d245381a64b8733898804c286ce4a8
Tofsee
8d64110a77ed9fe2d9454816668d95ed000442a34bb558ca0447ebd8c08b30ba
Tofsee
8fcb2057bdac3ba88cb811c44a0d79358075525506b1517c3e713aec8d31a666
Tofsee
af21217ee5523873bc4ee3b262ce06a371a1095abfea9729e3413cf9da1a0cab
Tofsee
cfcb21c8c129c8c2c525ecfac8bd883260eda6038e3991210765e582007451dd
Tofsee
+ 122 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/210823-6vdwqyvvdn/
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
Unpacked files
SH256 hash:
5596604c1864dd894c7209cc954a5c57374c0c54a5d0df5d1d4e7e3c5aaf6bd8
MD5 hash:
966d7a43ed4feeb7f8a9eb536e94b7c1
SHA1 hash:
fea8f18b4799df4f2151e4396f5fcac010f06274
Detections:
win_tofsee_w0
Create hunting rule
Link:
https://www.unpac.me/results/d7d9b887-4a7c-4fff-9c3d-fdbca25d042a/
Parent samples :
6a6c76468f25ca6d92463cc715fe615b2b449468a85e9c183693d8ea5a70fff1
700f94a34591e321bba41a65fe6ad2d273d245381a64b8733898804c286ce4a8
07056777e640806a058f582772f441ff608ff7b1f8bd69d20943acf35b266a2d
1a233cd70753a0c450148f0df3dc5881ef7b5bc7449a2da7da4bffa7f3d959b4
1ae374502df9e63ab3d4b3bc2611b0758f97285c3eb49d58713fd654ed9ab756
e87a5c719ac7af99f1478732889d5df0a275315b42b3b9aecc8b91333bd9c0af
SH256 hash:
1a233cd70753a0c450148f0df3dc5881ef7b5bc7449a2da7da4bffa7f3d959b4
MD5 hash:
b99632441466d549415fd1030450fad3
SHA1 hash:
93b183bda957d92112b17b4b6e9c4f3e6f1a8ef9
Link:
https://www.unpac.me/results/d7d9b887-4a7c-4fff-9c3d-fdbca25d042a/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/1a233cd70753/report/overview.html
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/1a233cd70753a0c450148f0df3dc5881ef7b5bc7449a2da7da4bffa7f3d959b4

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

Tofsee

Executable exe 1a233cd70753a0c450148f0df3dc5881ef7b5bc7449a2da7da4bffa7f3d959b4

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/181645/
  
URLhaus
https://urlhaus.abuse.ch/url/1558231/

Comments


Avatar
zbet commented on 2021-08-23 21:38:31 UTC

url : hxxp://185.49.70.90:2080/5.php