MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a773aa18c924c53e6d728cc0bb6a1a72ea6fdaac4536dd4d33aecb420f6aa1b0. 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: 10


Intelligence 10 IOCs 1 YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a773aa18c924c53e6d728cc0bb6a1a72ea6fdaac4536dd4d33aecb420f6aa1b0
SHA3-384 hash: b37d9879e2eec539971ee70a9b596a8b8c7fbdc99a6e8b4c832f5fc51dde844d4594968072ab012b5df0493691a17ce1
SHA1 hash: 21941fd2c5f3dd52a021c58bbda4ba24371c2e24
MD5 hash: 1f8f27ac53543bb015ef6c44b4da5f53
humanhash: kentucky-vegan-bacon-hydrogen
File name:SecuriteInfo.com.Variant.Fragtor.28226.23218.1122
Download: download sample
Signature Tofsee
Create hunting rule
File size:258'560 bytes
First seen:2021-10-04 02:48:44 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash c15bb6cf111ec297d5d1e54944f0caf3 (6 x RedLineStealer, 4 x ArkeiStealer, 3 x RaccoonStealer)
ssdeep 6144:iVYm4fLO5mu5aPjaVH81QM8ROhxxpeTr/ekI:aYjkmu5aPj8cz5zxp6L
Threatray 4'859 similar samples on MalwareBazaar
TLSH T1EF449D083980CBFED6760271AF16F7E0192DFCAD5D66568F2B99271E2E3D3D18621342
File icon (PE):PE icon
dhash icon fcfcd4f4d4d4d8c8 (5 x RaccoonStealer, 5 x RedLineStealer, 2 x ArkeiStealer)
Reporter SecuriteInfoCom
Tags:exe Tofsee

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
89.223.69.212:38637 https://threatfox.abuse.ch/ioc/230057/

Intelligence

File Origin
# of uploads :
1
# of downloads :
792
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SecuriteInfo.com.Variant.Fragtor.28226.23218.1122
Verdict:
Suspicious activity
Analysis date:
2021-10-04 02:49:34 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/f2aa5741-1cf0-42ea-a6f2-6ecd3fdb019c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Raccoon
Create hunting rule
Link:
https://www.capesandbox.com/analysis/194401/
Detection(s):
SecuriteInfo.com.Variant.Fragtor.28226.23218.1122.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Malware family:
SmokeLoader
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d2288d65-8b21-4d85-bbb4-aeeae5cd1509
Result
Threat name:
Raccoon RedLine SmokeLoader Tofsee
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/863617
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
Antivirus detection for dropped file
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)
Connects to many ports of the same IP (likely port scanning)
Contains functionality to inject code into remote processes
Creates a thread in another existing process (thread injection)
Deletes itself after installation
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found many strings related to Crypto-Wallets (likely being stolen)
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 dropped file
Machine Learning detection for sample
Maps a DLL or memory area into another process
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Query firmware table information (likely to detect VMs)
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Copying Sensitive Files with Credential Data
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 steal Crypto Currency Wallets
Uses known network protocols on non-standard ports
Yara detected Raccoon Stealer
Yara detected RedLine Stealer
Yara detected SmokeLoader
Yara detected Tofsee
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 496041 Sample: SecuriteInfo.com.Variant.Fr... Startdate: 04/10/2021 Architecture: WINDOWS Score: 100 60 194.180.174.82, 49798, 49801, 80 MIVOCLOUDMD unknown 2->60 62 t.me 149.154.167.99, 443, 49800 TELEGRAMRU United Kingdom 2->62 64 5 other IPs or domains 2->64 78 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->78 80 Multi AV Scanner detection for domain / URL 2->80 82 Antivirus detection for dropped file 2->82 84 19 other signatures 2->84 10 SecuriteInfo.com.Variant.Fragtor.28226.23218.exe 2->10         started        13 ubgviic 2->13         started        15 svchost.exe 2->15         started        17 4 other processes 2->17 signatures3 process4 signatures5 114 Detected unpacking (changes PE section rights) 10->114 116 Contains functionality to inject code into remote processes 10->116 118 Injects a PE file into a foreign processes 10->118 19 SecuriteInfo.com.Variant.Fragtor.28226.23218.exe 10->19         started        120 Machine Learning detection for dropped file 13->120 122 Changes security center settings (notifications, updates, antivirus, firewall) 15->122 process6 signatures7 86 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 19->86 88 Maps a DLL or memory area into another process 19->88 90 Checks if the current machine is a virtual machine (disk enumeration) 19->90 92 Creates a thread in another existing process (thread injection) 19->92 22 explorer.exe 16 19->22 injected process8 dnsIp9 66 193.56.146.41, 49769, 9080 LVLT-10753US unknown 22->66 68 privacy-toolz-for-you-3000.top 8.209.114.68, 49752, 49753, 49754 CNNIC-ALIBABA-US-NET-APAlibabaUSTechnologyCoLtdC Singapore 22->68 70 3 other IPs or domains 22->70 52 C:\Users\user\AppData\Roaming\ubgviic, PE32 22->52 dropped 54 C:\Users\user\AppData\Local\Temp\FEC0.exe, PE32 22->54 dropped 56 C:\Users\user\AppData\Local\Temp\FBD1.exe, PE32 22->56 dropped 58 6 other malicious files 22->58 dropped 106 System process connects to network (likely due to code injection or exploit) 22->106 108 Benign windows process drops PE files 22->108 110 Deletes itself after installation 22->110 112 Hides that the sample has been downloaded from the Internet (zone.identifier) 22->112 27 FEC0.exe 2 22->27         started        30 140F.exe 14 3 22->30         started        33 FBD1.exe 22->33         started        35 DA6.exe 2 22->35         started        file10 signatures11 process12 dnsIp13 124 Antivirus detection for dropped file 27->124 126 Multi AV Scanner detection for dropped file 27->126 128 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 27->128 140 2 other signatures 27->140 38 FEC0.exe 14 24 27->38         started        42 conhost.exe 27->42         started        44 FEC0.exe 27->44         started        76 193.56.146.60, 18243, 49810 LVLT-10753US unknown 30->76 130 Detected unpacking (changes PE section rights) 30->130 132 Query firmware table information (likely to detect VMs) 30->132 134 Tries to detect sandboxes and other dynamic analysis tools (window names) 30->134 142 2 other signatures 30->142 46 conhost.exe 30->46         started        136 Machine Learning detection for dropped file 33->136 48 FBD1.exe 33->48         started        50 C:\Users\user\AppData\Local\...\sidpjvzr.exe, PE32 35->50 dropped 138 Detected unpacking (overwrites its own PE header) 35->138 file14 signatures15 process16 dnsIp17 72 89.223.69.212, 38637, 49806 CONTINENTAL_GROUP-ASRU Russian Federation 38->72 74 api.ip.sb 38->74 94 Tries to harvest and steal browser information (history, passwords, etc) 38->94 96 Tries to steal Crypto Currency Wallets 38->96 98 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 48->98 100 Maps a DLL or memory area into another process 48->100 102 Checks if the current machine is a virtual machine (disk enumeration) 48->102 104 Creates a thread in another existing process (thread injection) 48->104 signatures18
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a773aa18c924c53e6d728cc0bb6a1a72ea6fdaac4536dd4d33aecb420f6aa1b0/
Threat name:
Win32.Ransomware.StopCrypt
Create hunting rule
Status:
Malicious
First seen:
2021-10-03 21:55:49 UTC
AV detection:
16 of 45 (35.56%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=u5z2uggjetct43lsrtalw2q2olvg7wvmiu3n2tjtv3fued3kugya._file
Verdict:
malicious
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fab15b7f61f816cf3128cc02c96d98d3385533087bc5afe3cd3799e7e034ce7f
Tofsee
+ 4'849 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:vidar family:xmrig botnet:1015 botnet:5ff0ccb2bc00dc52d1ad09949e9c7663bc9ca4d4 botnet:61491ed5436f034714f70beac9b11914bfa969d2 botnet:�&%>g� _��㢺vyu���a��e:6{k�1�b@�l�/� backdoor discovery evasion infostealer miner persistence ransomware spyware stealer themida trojan
Link:
https://tria.ge/reports/211004-da1zsafgd3/
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Creates scheduled task(s)
Delays execution with timeout.exe
Interacts with shadow copies
Kills process with taskkill
Modifies data under HKEY_USERS
Modifies registry class
Modifies system certificate store
NTFS ADS
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
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 2FA software files, possible credential harvesting
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
Blocklisted process makes network request
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)
Vidar Stealer
XMRig Miner Payload
Buran
Raccoon
RedLine
RedLine Payload
SmokeLoader
Tofsee
Vidar
Windows security bypass
xmrig
Malware Config
C2 Extraction:
http://fiskahlilian16.top/
http://paishancho17.top/
http://ydiannetter18.top/
http://azarehanelle19.top/
http://quericeriant20.top/
89.223.69.212:38637
https://mas.to/@bardak1ho
Dropper Extraction:
https://dl.uploadgram.me/6147778cead60h?raw
Unpacked files
SH256 hash:
592b089027938156e18387e4402b965a5f1ffc25e96d7efc3aa9331254587bdd
MD5 hash:
2dbb1eb8c40c88994738a736ad55c79b
SHA1 hash:
88e2fc9242606c7dfcd68d5da8c6d457837157a3
Link:
https://www.unpac.me/results/7313b308-d839-4fc4-8ce1-2294d150ed3b/
SH256 hash:
a773aa18c924c53e6d728cc0bb6a1a72ea6fdaac4536dd4d33aecb420f6aa1b0
MD5 hash:
1f8f27ac53543bb015ef6c44b4da5f53
SHA1 hash:
21941fd2c5f3dd52a021c58bbda4ba24371c2e24
Link:
https://www.unpac.me/results/7313b308-d839-4fc4-8ce1-2294d150ed3b/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/a773aa18c924/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/a773aa18c924c53e6d728cc0bb6a1a72ea6fdaac4536dd4d33aecb420f6aa1b0

File information

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

Web download

Tofsee

Executable exe a773aa18c924c53e6d728cc0bb6a1a72ea6fdaac4536dd4d33aecb420f6aa1b0

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1653238/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/194401/

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