MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d991c4c55e78d7c284d5ba259c54daddf1bef288367fcc36483bcdbd8555b245. 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: 8


Intelligence 8 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d991c4c55e78d7c284d5ba259c54daddf1bef288367fcc36483bcdbd8555b245
SHA3-384 hash: 86c895f99b4098e305b10f8ebf43daf0405629c214b0123002fe0fe1608c03618aad39e59cf186470e991268f446de21
SHA1 hash: fdbac1d6d323eb391e23da784c1a3a3bdcdf9b00
MD5 hash: 1f5726c57ae4a9021321894c7314d83b
humanhash: lion-alabama-massachusetts-ceiling
File name:1f5726c57ae4a9021321894c7314d83b.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:1'335'808 bytes
First seen:2020-09-10 05:41:33 UTC
Last seen:2020-09-10 06:43:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 0a51d3dbff2755c7c37ce35e5920f020 (15 x AgentTesla, 8 x MassLogger, 6 x Loki)
ssdeep 24576:yLJlxKfwvmygMdVXKWmHTuRF3NzSWaYyPsAkO8qVyVG:yAIHd/mzu39zHbaT
Threatray 1'040 similar samples on MalwareBazaar
TLSH 6755E022F2E04837C1BF163C5D1B97789C2ABD51393899462BF8DD4C8F3A6613939297
Reporter abuse_ch
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
2
# of downloads :
108
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/58282/
Detection(s):
SecuriteInfo.com.Trojan.Siggen9.48175.14302.5.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Sending a UDP request
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
DNS request
Sending an HTTP GET request
Using the Windows Management Instrumentation requests
Creating a file in the %temp% subdirectories
Reading critical registry keys
Moving a file to the %temp% subdirectory
Sending a custom TCP request
Deleting a recently created file
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Setting a global event handler for the keyboard
Unauthorized injection to a system process
Enabling autorun by creating a file
Result
Threat name:
MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/462859
Signature
.NET source code contains method to dynamically call methods (often used by packers)
Allocates memory in foreign processes
Contains functionality to detect sleep reduction / modifications
Creates files in alternative data streams (ADS)
Detected unpacking (changes PE section rights)
Detected unpacking (creates a PE file in dynamic memory)
Detected unpacking (overwrites its own PE header)
Drops VBS files to the startup folder
Machine Learning detection for dropped file
Machine Learning detection for sample
Maps a DLL or memory area into another process
May check the online IP address of the machine
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Queues an APC in another process (thread injection)
Sigma detected: Drops script at startup location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to steal Mail credentials (via file access)
Writes to foreign memory regions
Yara detected AntiVM_3
Yara detected Costura Assembly Loader
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 283828 Sample: 9whRY4CtgZ.exe Startdate: 10/09/2020 Architecture: WINDOWS Score: 100 73 nagano-19599.herokussl.com 2->73 75 mail.privateemail.com 2->75 77 2 other IPs or domains 2->77 105 Multi AV Scanner detection for submitted file 2->105 107 Yara detected MassLogger RAT 2->107 109 Yara detected AntiVM_3 2->109 111 6 other signatures 2->111 13 9whRY4CtgZ.exe 2->13         started        16 wscript.exe 1 2->16         started        signatures3 process4 signatures5 135 Writes to foreign memory regions 13->135 137 Allocates memory in foreign processes 13->137 139 Queues an APC in another process (thread injection) 13->139 141 Contains functionality to detect sleep reduction / modifications 13->141 18 notepad.exe 5 13->18         started        22 ghfhjgh.exe 16->22         started        process6 file7 65 C:\Users\user\AppData\Roaming\...\ghfhjgh.exe, PE32 18->65 dropped 67 C:\Users\user\...\ghfhjgh.exe:Zone.Identifier, ASCII 18->67 dropped 69 C:\Users\user\AppData\Roaming\...\win.vbs, ASCII 18->69 dropped 113 Creates files in alternative data streams (ADS) 18->113 115 Drops VBS files to the startup folder 18->115 24 ghfhjgh.exe 18->24         started        117 Maps a DLL or memory area into another process 22->117 27 ghfhjgh.exe 22->27         started        29 ghfhjgh.exe 5 22->29         started        signatures8 process9 dnsIp10 123 Multi AV Scanner detection for dropped file 24->123 125 Detected unpacking (changes PE section rights) 24->125 127 Detected unpacking (creates a PE file in dynamic memory) 24->127 129 5 other signatures 24->129 32 ghfhjgh.exe 24->32         started        34 ghfhjgh.exe 15 6 24->34         started        38 ghfhjgh.exe 27->38         started        91 nagano-19599.herokussl.com 29->91 93 mail.privateemail.com 29->93 95 2 other IPs or domains 29->95 40 WerFault.exe 29->40         started        signatures11 process12 dnsIp13 42 ghfhjgh.exe 32->42         started        79 mail.privateemail.com 198.54.122.60, 49748, 49754, 49760 NAMECHEAP-NETUS United States 34->79 81 elb097307-934924932.us-east-1.elb.amazonaws.com 23.21.126.66, 49739, 49746, 80 AMAZON-AESUS United States 34->81 83 2 other IPs or domains 34->83 119 Tries to steal Mail credentials (via file access) 34->119 45 WerFault.exe 34->45         started        121 Maps a DLL or memory area into another process 38->121 48 ghfhjgh.exe 38->48         started        50 ghfhjgh.exe 38->50         started        signatures14 process15 dnsIp16 133 Maps a DLL or memory area into another process 42->133 52 ghfhjgh.exe 42->52         started        54 ghfhjgh.exe 42->54         started        97 192.168.2.1 unknown unknown 45->97 99 54.235.169.38, 49759, 80 AMAZON-AESUS United States 48->99 101 nagano-19599.herokussl.com 48->101 103 2 other IPs or domains 48->103 signatures17 process18 process19 56 ghfhjgh.exe 52->56         started        signatures20 131 Maps a DLL or memory area into another process 56->131 59 ghfhjgh.exe 56->59         started        63 ghfhjgh.exe 56->63         started        process21 dnsIp22 85 23.21.118.184, 49758, 80 AMAZON-AESUS United States 59->85 87 nagano-19599.herokussl.com 59->87 89 3 other IPs or domains 59->89 71 C:\Users\user\AppData\Local\Temp\...\Log.txt, ASCII 59->71 dropped file23
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d991c4c55e78d7c284d5ba259c54daddf1bef288367fcc36483bcdbd8555b245/
Threat name:
Win32.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-09-09 22:31:58 UTC
AV detection:
27 of 29 (93.10%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=3gi4jrk6pdl4fbgvxiszyvg23xy354uigz74ynsihpg33bkvwjcq._file
Verdict:
malicious
Label(s):
hawkeyekeylogger
Create hunting rule
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MassLogger
+ 1'030 additional samples on MalwareBazaar
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
ransomware upx spyware stealer family:masslogger
Link:
https://tria.ge/reports/200910-w4xaw2e8we/
Behaviour
NTFS ADS
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
Drops startup file
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
UPX packed file
MassLogger
MassLogger log file
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/d991c4c55e78d7c284d5ba259c54daddf1bef288367fcc36483bcdbd8555b245

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:masslogger_gcch
Create hunting rule
Author:govcert_ch
Rule name:win_masslogger_w0
Create hunting rule
Author:govcert_ch

File information

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

Web download

MassLogger

Executable exe d991c4c55e78d7c284d5ba259c54daddf1bef288367fcc36483bcdbd8555b245

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/412465/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/58282/

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