MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 102f91266026da7eb656fe30e15fb7eadda1335013bc21ab3e0a986ea1ff7727. 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



MassLogger


Vendor detections: 11


Intelligence 11 IOCs YARA 19 File information Comments

SHA256 hash: 102f91266026da7eb656fe30e15fb7eadda1335013bc21ab3e0a986ea1ff7727
SHA3-384 hash: 87ac498012b021ff5ccdf4247dd32867c6928d5d3a2bfbbc9f05b5149986bdbd8f45e95f24ed26704447919080bb335f
SHA1 hash: aca70b49fbfdc3543c8f5b51df0a03780834f686
MD5 hash: fec1a9eb0e5ca4868f9dc607f5fb1a72
humanhash: jig-sodium-edward-social
File name:102f91266026da7eb656fe30e15fb7eadda1335013bc21ab3e0a986ea1ff7727
Download: download sample
Signature MassLogger
File size:1'006'080 bytes
First seen:2021-09-21 08:37:48 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'664 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:9nkdueXjq0OQKc2YSEegpQRDLusJLK1lkzoL9:JkdueXjq0OQKc2YSEegpshk1lk
Threatray 185 similar samples on MalwareBazaar
TLSH T130252A14F7E855A5F06EBF30747094054A39BE43697DD74A2BA6A1890F7B3808CB1FA3
File icon (PE):PE icon
dhash icon 20ecf49cdcf4ec04 (2 x MassLogger)
Reporter JAMESWT_WT
Tags:exe MassLogger

Intelligence


File Origin
# of uploads :
1
# of downloads :
214
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
102f91266026da7eb656fe30e15fb7eadda1335013bc21ab3e0a986ea1ff7727
Verdict:
Suspicious activity
Analysis date:
2021-09-21 09:09:30 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Threat name:
AgentTesla Quasar
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Signature
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to hide user accounts
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Modifies the windows firewall
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: WScript or CScript Dropper
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses netsh to modify the Windows network and firewall settings
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Quasar RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 487138 Sample: 34BUWCT7QV Startdate: 21/09/2021 Architecture: WINDOWS Score: 100 57 192.168.2.1 unknown unknown 2->57 67 Malicious sample detected (through community Yara rule) 2->67 69 Antivirus / Scanner detection for submitted sample 2->69 71 Multi AV Scanner detection for submitted file 2->71 73 10 other signatures 2->73 9 34BUWCT7QV.exe 16 11 2->9         started        14 XAMMP.exe 2->14         started        16 XAMMP.exe 2 2->16         started        18 explorer.exe 2->18         started        signatures3 process4 dnsIp5 63 ip-api.com 208.95.112.1, 49736, 49738, 80 TUT-ASUS United States 9->63 65 raw.githubusercontent.com 185.199.111.133, 443, 49737, 49743 FASTLYUS Netherlands 9->65 53 C:\Users\user\AppData\Roaming\XAMMP.exe, PE32 9->53 dropped 87 May check the online IP address of the machine 9->87 89 Uses schtasks.exe or at.exe to add and modify task schedules 9->89 91 Modifies the windows firewall 9->91 93 2 other signatures 9->93 20 XAMMP.exe 15 6 9->20         started        25 cmd.exe 1 9->25         started        27 cmd.exe 1 9->27         started        29 13 other processes 9->29 55 C:\Users\user\AppData\Local\...\XAMMP.exe.log, ASCII 14->55 dropped file6 signatures7 process8 dnsIp9 59 13.58.157.220, 13969, 49739, 49740 AMAZON-02US United States 20->59 61 ip-api.com 20->61 51 C:\Users\user\AppData\Localxecution.vbs, ASCII 20->51 dropped 75 Antivirus detection for dropped file 20->75 77 Multi AV Scanner detection for dropped file 20->77 79 May check the online IP address of the machine 20->79 85 2 other signatures 20->85 31 schtasks.exe 20->31         started        33 explorer.exe 20->33         started        81 Uses netsh to modify the Windows network and firewall settings 25->81 83 Adds a directory exclusion to Windows Defender 25->83 35 powershell.exe 26 25->35         started        37 conhost.exe 25->37         started        39 conhost.exe 27->39         started        41 powershell.exe 27->41         started        43 conhost.exe 29->43         started        45 conhost.exe 29->45         started        47 19 other processes 29->47 file10 signatures11 process12 process13 49 conhost.exe 31->49         started       
Threat name:
ByteCode-MSIL.Trojan.Zilla
Status:
Malicious
First seen:
2021-09-15 21:19:20 UTC
AV detection:
35 of 45 (77.78%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:quasar botnet:kral evasion persistence spyware trojan
Behaviour
Creates scheduled task(s)
Modifies registry class
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Adds Run key to start application
Looks up external IP address via web service
Loads dropped DLL
Executes dropped EXE
Modifies Windows Firewall
Quasar Payload
Quasar RAT
Malware Config
C2 Extraction:
13.58.157.220:13969
Unpacked files
SH256 hash:
102f91266026da7eb656fe30e15fb7eadda1335013bc21ab3e0a986ea1ff7727
MD5 hash:
fec1a9eb0e5ca4868f9dc607f5fb1a72
SHA1 hash:
aca70b49fbfdc3543c8f5b51df0a03780834f686
Detections:
win_masslogger_w0 win_agent_tesla_g1
Please note that we are no longer able to provide a coverage score for Virus Total.

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_ASEP_REG_Reverse
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
Rule name:INDICATOR_SUSPICIOUS_EXE_RawGitHub_URL
Author:ditekSHen
Description:Detects executables containing URLs to raw contents of a Github gist
Rule name:INDICATOR_SUSPICIOUS_EXE_References_CryptoWallets
Author:ditekSHen
Description:Detects executables referencing many cryptocurrency mining wallets or apps. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender
Author:ditekSHen
Description:Detects executables embedding registry key / value combination indicative of disabling Windows Defedner features
Rule name:INDICATOR_SUSPICIOUS_EXE_RegKeyComb_IExecuteCommandCOM
Author:ditekSHen
Description:Detects executables embedding command execution via IExecuteCommand COM object
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCMD
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP utility, command line and INF
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:MALWARE_Win_DLAgent09
Author:ditekSHen
Description:Detects known downloader agent
Rule name:MALWARE_Win_DLAgent10
Author:ditekSHen
Description:Detects known downloader agent
Rule name:MALWARE_Win_QuasarRAT
Author:ditekSHen
Description:QuasarRAT payload
Rule name:masslogger_gcch
Author:govcert_ch
Rule name:pe_imphash
Rule name:pe_imphash
Rule name:Quasar
Author:JPCERT/CC Incident Response Group
Description:detect QuasarRAT in memory
Rule name:RDPWrap
Author:@bartblaze
Description:Identifies RDP Wrapper, sometimes used by attackers to maintain persistence.
Reference:https://github.com/stascorp/rdpwrap
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Typical_Malware_String_Transforms
Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
Rule name:Typical_Malware_String_Transforms_RID3473
Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
Rule name:win_masslogger_w0
Author:govcert_ch

File information


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

Comments