MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 55ded456339aef89e7d891f0c7f494c11d8983233106d64069bc767ab06ceb71. 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


TVRat


Vendor detections: 9


Intelligence 9 IOCs YARA 7 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 55ded456339aef89e7d891f0c7f494c11d8983233106d64069bc767ab06ceb71
SHA3-384 hash: 8b719dcc663bf7a8015e8fb1b55b57990007fa46e495280aa97c322e5f6c9ee5b52060ad649ad9ae03f26174df1f7665
SHA1 hash: 8dada5095001a0857d4b187dc7e9e173f48f58b1
MD5 hash: dfe1a45033e47fd25d362877f03509f6
humanhash: single-east-muppet-november
File name:dfe1a45033e47fd25d362877f03509f6
Download: download sample
Signature TVRat
Create hunting rule
File size:818'672 bytes
First seen:2022-02-01 18:35:58 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 4de596e02dfd8f7034d5d76abb88cf98 (1 x TVRat)
ssdeep 12288:OPO3qpBkUQz3cOCE2tdud11tnClLsdnbB4B/XQH+g1o41XxW8E38hzUVl7:OGqpCUQz3PtSdUHsYdbB8fQZfXx68ho
TLSH T1CC05230A31E2883AE8157531E5B1C71A95309FD95F1701C37FAD6C2AFB73B0A1B39926
File icon (PE):PE icon
dhash icon 716969c8a4a6cadc (1 x TVRat)
Reporter zbetcheckin
Tags:exe TVRat

Intelligence

File Origin
# of uploads :
1
# of downloads :
162
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/229295/
Detection(s):
SecuriteInfo.com.BackDoor.DarkCrystalNET.12.6092.24717.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file
Creating a window
Creating a file in the Program Files subdirectories
Searching for the window
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Launching a process
Creating a file in the Windows subdirectories
Running batch commands
Creating a process with a hidden window
Searching for synchronization primitives
Creating a file in the %AppData% subdirectories
Sending a UDP request
Query of malicious DNS domain
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Setting a single autorun event
Sending an HTTP GET request to an infection source
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
anti-debug overlay packed
Link:
https://www.filescan.io/uploads/61f97da36d25ac9e79f72d5e/reports/8b514874-cd90-4b2d-9172-7f68cae516ce/overview
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/da0289bb-c414-4bf2-b617-ff53d39c6e81
Result
Threat name:
DCRat RedLine TVrat
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/931966
Signature
Antivirus detection for URL or domain
Creates processes via WMI
Detected unpacking (changes PE section rights)
Detected unpacking (creates a PE file in dynamic memory)
Detected unpacking (overwrites its own PE header)
Drops PE files with benign system names
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file has nameless sections
Query firmware table information (likely to detect VMs)
Sigma detected: Executable Used by PlugX in Uncommon Location
Sigma detected: File Created with System Process Name
Sigma detected: Suspicious Program Location with Network Connections
Sigma detected: System File Execution Location Anomaly
Tries to detect sandboxes / dynamic malware analysis system (registry check)
Tries to detect virtualization through RDTSC time measurements
Tries to evade analysis by execution special instruction which cause usermode exception
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected DCRat
Yara detected RedLine Stealer
Yara detected TVrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 564448 Sample: DK8lgStKwF Startdate: 01/02/2022 Architecture: WINDOWS Score: 100 49 94.103.81.146, 80 VDSINA-ASRU Russian Federation 2->49 51 mirtonewbacker.com 2->51 53 id.xn--80akicokc0aablc.xn--p1ai 2->53 73 Malicious sample detected (through community Yara rule) 2->73 75 Antivirus detection for URL or domain 2->75 77 Multi AV Scanner detection for dropped file 2->77 79 14 other signatures 2->79 7 DK8lgStKwF.exe 15 7 2->7         started        12 WmiPrvSE.exe 3 2->12         started        14 schtasks.exe 2->14         started        signatures3 process4 dnsIp5 57 d0me.net 31.42.189.50, 49758, 80 SERVERIUS-ASNL Ukraine 7->57 41 C:\Users\user\AppData\Local\Temp\rc.exe, PE32 7->41 dropped 43 C:\Users\user\AppData\Local\Temp\as.exe, PE32 7->43 dropped 45 C:\Users\user\AppData\Local\Temp\re.exe, MS-DOS 7->45 dropped 47 C:\Users\user\AppData\...\DK8lgStKwF.exe.log, ASCII 7->47 dropped 81 Detected unpacking (creates a PE file in dynamic memory) 7->81 83 Tries to evade analysis by execution special instruction which cause usermode exception 7->83 16 rc.exe 6 18 7->16         started        20 as.exe 52 7->20         started        22 re.exe 2 7->22         started        85 Multi AV Scanner detection for dropped file 12->85 87 Detected unpacking (changes PE section rights) 12->87 89 Detected unpacking (overwrites its own PE header) 12->89 91 3 other signatures 12->91 file6 signatures7 process8 dnsIp9 25 C:\Windows\SysWOW64\WMASF\dwm.exe, PE32 16->25 dropped 27 C:\Program Files (x86)\...\smartscreen.exe, PE32 16->27 dropped 29 C:\PerfLogs\WmiPrvSE.exe, PE32 16->29 dropped 37 2 other files (none is malicious) 16->37 dropped 59 Multi AV Scanner detection for dropped file 16->59 61 Detected unpacking (changes PE section rights) 16->61 63 Detected unpacking (overwrites its own PE header) 16->63 71 4 other signatures 16->71 31 C:\Users\user\AppData\Local\...\quartz.dll, PE32 20->31 dropped 33 C:\Users\user\AppData\...\vcruntime140.dll, PE32 20->33 dropped 35 C:\Users\user\AppData\Local\...\vcomp140.dll, PE32 20->35 dropped 39 21 other files (none is malicious) 20->39 dropped 65 Machine Learning detection for dropped file 20->65 55 92.38.241.101, 36778 DINET-ASRU Russian Federation 22->55 67 Detected unpacking (creates a PE file in dynamic memory) 22->67 69 Tries to evade analysis by execution special instruction which cause usermode exception 22->69 file10 signatures11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/55ded456339aef89e7d891f0c7f494c11d8983233106d64069bc767ab06ceb71/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2022-02-01 11:42:22 UTC
File Type:
PE (Exe)
Extracted files:
20
AV detection:
27 of 43 (62.79%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kxpnivrttlxytz6yshymp5euyeoytazdgednmqdjxr3hvmdm5nyq._file
Verdict:
malicious
Label(s):
ryuk
Create hunting rule
Result
Malware family:
redline
Create hunting rule
Score:
  10/10
Tags:
family:redline evasion infostealer persistence suricata trojan
Link:
https://tria.ge/reports/220201-w8w3laadeq/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
NSIS installer
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Drops file in System32 directory
Adds Run key to start application
Checks whether UAC is enabled
Checks BIOS information in registry
Loads dropped DLL
Downloads MZ/PE file
Executes dropped EXE
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Process spawned unexpected child process
RedLine
RedLine Payload
suricata: ET MALWARE SpyAgent C&C Activity (Request)
suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
suricata: ET MALWARE Win32.Spy/TVRat Checkin
Malware Config
C2 Extraction:
92.38.241.101:36778
Unpacked files
SH256 hash:
6bab3b8fb820131c9960e76c1e38332f5e281e640db93f068ba4ec5e53786247
MD5 hash:
5abd249127157fd88e20828d122cb669
SHA1 hash:
c82cd5ca0df86bbf4f81b9468c7d54bf630bc506
Link:
https://www.unpac.me/results/d34502f3-46f6-4ffe-89a0-4ba7614c9d3b/
SH256 hash:
ced51953be2dfb9865019a07427717d1c93b0b5dc30f167a78a035bf128a66b4
MD5 hash:
c3c96285bf6e2f7414e5e3c9d77df6c2
SHA1 hash:
0c59608ec6b1b152791a1af0abae22d83c7fe270
Link:
https://www.unpac.me/results/d34502f3-46f6-4ffe-89a0-4ba7614c9d3b/
SH256 hash:
9890c69a002d01bcb6475d657a16aebc41036bbc35a201e3c8ffb998e9f28b8b
MD5 hash:
2e0b5d034790b3672a165afda9de67c0
SHA1 hash:
679c0e559f1d105ebc969d11ed89c8832f59255f
Link:
https://www.unpac.me/results/d34502f3-46f6-4ffe-89a0-4ba7614c9d3b/
SH256 hash:
55ded456339aef89e7d891f0c7f494c11d8983233106d64069bc767ab06ceb71
MD5 hash:
dfe1a45033e47fd25d362877f03509f6
SHA1 hash:
8dada5095001a0857d4b187dc7e9e173f48f58b1
Link:
https://www.unpac.me/results/d34502f3-46f6-4ffe-89a0-4ba7614c9d3b/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/55ded456339aef89e7d891f0c7f494c11d8983233106d64069bc767ab06ceb71

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:INDICATOR_SUSPICIOUS_EXE_Embedded_Gzip_B64Encoded_File
Create hunting rule
Author:ditekSHen
Description:Detects executables containing bas64 encoded gzip files
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:MALWARE_Win_DCRat
Create hunting rule
Author:ditekSHen
Description:DCRat payload
Rule name:MALWARE_Win_RedLine
Create hunting rule
Author:ditekSHen
Description:Detects RedLine infostealer
Rule name:pe_imphash
Create hunting rule
Rule name:quakbot_halo_generated
Create hunting rule
Author:Halogen Generated Rule, Corsin Camichel
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

TVRat

Executable exe 55ded456339aef89e7d891f0c7f494c11d8983233106d64069bc767ab06ceb71

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2021909/
Cape
Cape
https://www.capesandbox.com/analysis/229295/

Comments


Avatar
zbet commented on 2022-02-01 18:35:59 UTC

url : hxxp://benbest.org/CryptoExtens.exe