MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b54c24558cf6e2625c473b5703aa2fe21887b7434377fe1d868966a57c5bc483. 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: 9


Intelligence 9 IOCs 1 YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b54c24558cf6e2625c473b5703aa2fe21887b7434377fe1d868966a57c5bc483
SHA3-384 hash: 30a25847e383c69b31667a8e03507bd10a82a5c8c5732bce0ab38657b41ab69717288703329eed0bc3760157d2fe8da6
SHA1 hash: c5ded1e34d8b1aaa62d8fcc45f245ebe3922baed
MD5 hash: 88d7e4d97668f06068ec238fabc59d82
humanhash: king-beer-romeo-paris
File name:88d7e4d97668f06068ec238fabc59d82.exe
Download: download sample
Signature Tofsee
Create hunting rule
File size:145'920 bytes
First seen:2021-08-29 06:55:43 UTC
Last seen:2021-08-29 08:19:55 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 0336658842541b9e17744ccc2800922a (13 x RaccoonStealer, 2 x CoinMiner, 2 x RedLineStealer)
ssdeep 1536:bZWUlFHIbp16Pn+CbwFcVU8YrM5gWmIbplqTP5KUucdAKgxBqQsjk5/Npj6T61mD:fhSFcVUHWjq75KjjKSBTsI5/DuT61m
Threatray 3'947 similar samples on MalwareBazaar
TLSH T1A2E3BF1435B3C573C1D659704498A6912B2FBB32AA73858B3B99076F3F325C2963E353
dhash icon 4839b2b0e8c38890 (105 x RaccoonStealer, 38 x Smoke Loader, 33 x RedLineStealer)
Reporter abuse_ch
Tags:exe Tofsee


Avatar
abuse_ch
Tofsee C2:
http://84.246.85.16/

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
http://84.246.85.16/ https://threatfox.abuse.ch/ioc/201706/

Intelligence

File Origin
# of uploads :
2
# of downloads :
592
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
88d7e4d97668f06068ec238fabc59d82.exe
Verdict:
Suspicious activity
Analysis date:
2021-08-29 06:58:22 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/4da42b95-7792-4041-95c4-023607fa5050

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/183200/
Detection(s):
SecuriteInfo.com.Trojan.Siggen15.1293.24204.26971.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
DNS request
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Connection attempt
Sending an HTTP POST request
Creating a file in the %temp% directory
Creating a process from a recently created file
Searching for analyzing tools
Searching for the window
Sending a custom TCP request
Sending an HTTP GET request
Launching a process
Launching the default Windows debugger (dwwin.exe)
Reading critical registry keys
Unauthorized injection to a system process
Deleting of the original file
Enabling autorun by creating a file
Malware family:
Malicious Packer
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/371501b8-7538-4772-b601-54b457804ad2
Result
Threat name:
Raccoon RedLine SmokeLoader Tofsee Xmrig
Create hunting rule
Detection:
malicious
Classification:
spre.troj.spyw.evad.mine
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/840969
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus detection for URL or domain
Benign windows process drops PE files
Changes security center settings (notifications, updates, antivirus, firewall)
Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation))
Checks if the current machine is a virtual machine (disk enumeration)
Contains functionality to steal Internet Explorer form passwords
Creates a thread in another existing process (thread injection)
Creates files in alternative data streams (ADS)
Deletes itself after installation
Detected unpacking (changes PE section rights)
DLL side loading technique detected
Drops executables to the windows directory (C:\Windows) and starts them
Found strings related to Crypto-Mining
Hides that the sample has been downloaded from the Internet (zone.identifier)
Hides threads from debuggers
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
May check the online IP address of the machine
Modifies the windows firewall
Multi AV Scanner detection for submitted file
PE file contains section with special chars
PE file has nameless sections
Performs DNS queries to domains with low reputation
Query firmware table information (likely to detect VMs)
Send many emails (e-Mail Spam)
Sigma detected: Copying Sensitive Files with Credential Data
Sigma detected: Suspect Svchost Activity
Sigma detected: Suspicious Svchost Process
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)
Tries to detect sandboxes / dynamic malware analysis system (registry check)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect sandboxes and other dynamic analysis tools (window names)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to resolve many domain names, but no domain seems valid
Tries to steal Mail credentials (via file access)
Uses known network protocols on non-standard ports
Uses netsh to modify the Windows network and firewall settings
Writes to foreign memory regions
Yara detected Raccoon Stealer
Yara detected RedLine Stealer
Yara detected SmokeLoader
Yara detected Tofsee
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 473396 Sample: k2vbB70cV7.exe Startdate: 29/08/2021 Architecture: WINDOWS Score: 100 95 41.52.17.84.zen.spamhaus.org 2->95 97 41.52.17.84.sbl-xbl.spamhaus.org 2->97 99 16 other IPs or domains 2->99 135 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->135 137 Malicious sample detected (through community Yara rule) 2->137 139 Antivirus detection for URL or domain 2->139 143 21 other signatures 2->143 11 k2vbB70cV7.exe 2->11         started        14 sqfrlhsi.exe 2->14         started        16 uwhsuhg 2->16         started        18 11 other processes 2->18 signatures3 141 Tries to resolve many domain names, but no domain seems valid 97->141 process4 dnsIp5 185 Detected unpacking (changes PE section rights) 11->185 21 k2vbB70cV7.exe 11->21         started        187 Writes to foreign memory regions 14->187 189 Allocates memory in foreign processes 14->189 191 Injects a PE file into a foreign processes 14->191 24 svchost.exe 14->24         started        28 uwhsuhg 16->28         started        101 127.0.0.1 unknown unknown 18->101 103 shw-central.mx.a.cloudfilter.net 18->103 193 Changes security center settings (notifications, updates, antivirus, firewall) 18->193 195 DLL side loading technique detected 18->195 signatures6 process7 dnsIp8 145 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 21->145 147 Maps a DLL or memory area into another process 21->147 149 Checks if the current machine is a virtual machine (disk enumeration) 21->149 30 explorer.exe 22 21->30 injected 113 41.52.17.84.bl.spamcop.net 24->113 115 www.google.com 24->115 117 48 other IPs or domains 24->117 85 C:\Windows\SysWOW64\...\systemprofile:.repos, data 24->85 dropped 151 System process connects to network (likely due to code injection or exploit) 24->151 153 Creates files in alternative data streams (ADS) 24->153 155 Injects a PE file into a foreign processes 24->155 157 Creates a thread in another existing process (thread injection) 28->157 file9 159 Tries to resolve many domain names, but no domain seems valid 113->159 161 May check the online IP address of the machine 115->161 signatures10 process11 dnsIp12 119 readinglistforaugust7.xyz 30->119 121 readinglistforaugust6.xyz 30->121 123 11 other IPs or domains 30->123 87 C:\Users\user\AppData\Roaming\uwhsuhg, PE32 30->87 dropped 89 C:\Users\user\AppData\Local\Temp\FA75.exe, PE32 30->89 dropped 91 C:\Users\user\AppData\Local\TempE2F.exe, PE32 30->91 dropped 93 8 other files (6 malicious) 30->93 dropped 125 System process connects to network (likely due to code injection or exploit) 30->125 127 Benign windows process drops PE files 30->127 129 Performs DNS queries to domains with low reputation 30->129 133 3 other signatures 30->133 35 5F4B.exe 79 30->35         started        40 693F.exe 2 30->40         started        42 EE2F.exe 30->42         started        44 4 other processes 30->44 file13 131 Tries to resolve many domain names, but no domain seems valid 121->131 signatures14 process15 dnsIp16 105 telete.in 195.201.225.248, 443, 49723 HETZNER-ASDE Germany 35->105 107 84.246.85.16, 49726, 80 DFNVereinzurFoerderungeinesDeutschenForschungsnetzese unknown 35->107 75 C:\Users\user\AppData\LocalLow\sqlite3.dll, PE32 35->75 dropped 77 C:\Users\user\AppData\...\vcruntime140.dll, PE32 35->77 dropped 79 C:\Users\user\AppData\...\ucrtbase.dll, PE32 35->79 dropped 83 56 other files (none is malicious) 35->83 dropped 163 Tries to steal Mail credentials (via file access) 35->163 165 Tries to harvest and steal browser information (history, passwords, etc) 35->165 46 WerFault.exe 35->46         started        48 WerFault.exe 35->48         started        81 C:\Users\user\AppData\Local\...\sqfrlhsi.exe, PE32 40->81 dropped 167 Detected unpacking (changes PE section rights) 40->167 169 Uses netsh to modify the Windows network and firewall settings 40->169 171 Modifies the windows firewall 40->171 50 cmd.exe 40->50         started        53 cmd.exe 40->53         started        55 sc.exe 40->55         started        59 3 other processes 40->59 173 Query firmware table information (likely to detect VMs) 42->173 175 Tries to detect sandboxes and other dynamic analysis tools (window names) 42->175 177 Hides threads from debuggers 42->177 109 cdn.discordapp.com 162.159.129.233, 443, 49712 CLOUDFLARENETUS United States 44->109 111 builder.pp.ru 185.244.41.39, 443, 49711 ASKONTELRU Russian Federation 44->111 179 Contains functionality to steal Internet Explorer form passwords 44->179 181 Injects a PE file into a foreign processes 44->181 183 Tries to detect sandboxes / dynamic malware analysis system (registry check) 44->183 57 conhost.exe 44->57         started        file17 signatures18 process19 file20 73 C:\Windows\SysWOW64\...\sqfrlhsi.exe (copy), PE32 50->73 dropped 61 conhost.exe 50->61         started        63 conhost.exe 53->63         started        65 conhost.exe 55->65         started        67 conhost.exe 59->67         started        69 conhost.exe 59->69         started        71 conhost.exe 59->71         started        process21
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b54c24558cf6e2625c473b5703aa2fe21887b7434377fe1d868966a57c5bc483/
Threat name:
Win32.Trojan.Sabsik
Create hunting rule
Status:
Malicious
First seen:
2021-08-29 03:02:53 UTC
AV detection:
19 of 45 (42.22%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wvgcivmm63rgexchhnlqhkrp4imipn2din374hmgrftkk7c3ysbq._file
Verdict:
suspicious
Similar samples:
16d43d657e2c50c681a5811c523ff27932259dd99e8b0ff64a3be9184c606e4f
Tofsee
3f3fecd695146b28e051593aabcd535dc366932c08bf0011ae997ad6b7e39147
Tofsee
4d2041a2a0df754a74123b251358abd1f981985d32103138943ee2974cbb6f1d
Tofsee
60ab0131b6fa420a6a8039b60ac948db87033e9a8db69b16344e3d9222859556
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b302fcb42934760527ba26528d13aaa8e2cc3150b8055485e5c27f24edaf2892
Tofsee
c55df5e9d0ea176321a29f8957c7a43188796ae0fc0ffe1ae94ad6092d30ba77
Tofsee
d620056c5defae218de13235fc4a509d968bd55469092aa00095ff94a0246b7f
Tofsee
ecc608dedd0b55df6c75aeffcd51e11f3fd50d7422e4a1b26d4515a18419b9c4
Tofsee
f4e1fc78ba0a65bde5687a67eb89e20166e062356b77227c9e0211060bd14dc8
Tofsee
f74c97d626730018ba9a8dd5e6fb806bfcc42d15a8b20ef328cc5f0d6a052ccc
Tofsee
+ 3'937 additional samples on MalwareBazaar
Result
Malware family:
xmrig
Create hunting rule
Score:
  10/10
Tags:
family:buran family:raccoon family:redline family:smokeloader family:tofsee family:xmrig botnet:20d9c80657d1d0fda9625cbd629ba419b8a34404 botnet:d02c5d65069fc7ce1993e7c52edf0c9c4c195c81 botnet:fe582536ec580228180f270f7cb80a867860e010 botnet:word1 backdoor discovery evasion infostealer miner persistence ransomware spyware stealer themida trojan
Link:
https://tria.ge/reports/210829-87pkegv11x/
Behaviour
Checks SCSI registry key(s)
Interacts with shadow copies
Modifies data under HKEY_USERS
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in Program Files directory
Launches sc.exe
Drops file in System32 directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Checks installed software on the system
Checks whether UAC is enabled
Enumerates connected drives
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Checks BIOS information in registry
Deletes itself
Loads dropped DLL
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Themida packer
Creates new service(s)
Downloads MZ/PE file
Executes dropped EXE
Modifies Windows Firewall
Sets service image path in registry
Deletes shadow copies
Identifies VirtualBox via ACPI registry values (likely anti-VM)
XMRig Miner Payload
Buran
Raccoon
RedLine
RedLine Payload
SmokeLoader
Suspicious use of NtCreateProcessExOtherParentProcess
Tofsee
Windows security bypass
xmrig
Malware Config
C2 Extraction:
http://readinglistforaugust1.xyz/
http://readinglistforaugust2.xyz/
http://readinglistforaugust3.xyz/
http://readinglistforaugust4.xyz/
http://readinglistforaugust5.xyz/
http://readinglistforaugust6.xyz/
http://readinglistforaugust7.xyz/
http://readinglistforaugust8.xyz/
http://readinglistforaugust9.xyz/
http://readinglistforaugust10.xyz/
http://readinglistforaugust1.site/
http://readinglistforaugust2.site/
http://readinglistforaugust3.site/
http://readinglistforaugust4.site/
http://readinglistforaugust5.site/
http://readinglistforaugust6.site/
http://readinglistforaugust7.site/
http://readinglistforaugust8.site/
http://readinglistforaugust9.site/
http://readinglistforaugust10.site/
http://readinglistforaugust1.club/
http://readinglistforaugust2.club/
http://readinglistforaugust3.club/
http://readinglistforaugust4.club/
http://readinglistforaugust5.club/
http://readinglistforaugust6.club/
http://readinglistforaugust7.club/
http://readinglistforaugust8.club/
http://readinglistforaugust9.club/
http://readinglistforaugust10.club/
94.26.249.88:1902
Unpacked files
SH256 hash:
0a9a7acf77fe4f890fe2acf761fa7f369418bb1f733504acd0792f589ccc7b15
MD5 hash:
ad94a86355be2ad9348b88e8972e8320
SHA1 hash:
8c7ff71739a5194efc5c7bee9c37ad92a9e72646
Link:
https://www.unpac.me/results/8f45eee9-1823-43a3-8b2f-61b2ca89a8a1/
SH256 hash:
b54c24558cf6e2625c473b5703aa2fe21887b7434377fe1d868966a57c5bc483
MD5 hash:
88d7e4d97668f06068ec238fabc59d82
SHA1 hash:
c5ded1e34d8b1aaa62d8fcc45f245ebe3922baed
Link:
https://www.unpac.me/results/8f45eee9-1823-43a3-8b2f-61b2ca89a8a1/
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/b54c24558cf6e2625c473b5703aa2fe21887b7434377fe1d868966a57c5bc483

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Tofsee

Executable exe b54c24558cf6e2625c473b5703aa2fe21887b7434377fe1d868966a57c5bc483

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1558724/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/183200/

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