MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 190429a9b3c77af4591eadffb647e4e0ecf4eb707a64cdd32573736b3edab8d4. 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: 190429a9b3c77af4591eadffb647e4e0ecf4eb707a64cdd32573736b3edab8d4
SHA3-384 hash: 9644a775480e038f07188ff68cdc77351812ced0495bc4677ba6c359d7a58856ea420c66a0c074707163fa76ac5072e1
SHA1 hash: 4f0230b47448528d3f07e958e2304a63b229beb1
MD5 hash: a345ad99c92b3962b2cc09f3e8c4830c
humanhash: island-timing-march-single
File name:a345ad99c92b3962b2cc09f3e8c4830c.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:1'322'496 bytes
First seen:2020-09-11 12:18:48 UTC
Last seen:2020-09-11 12:47:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 5c64aedd0cc44562f8c8725dd20eeff1 (1 x MassLogger)
ssdeep 24576:vKIxE81hyA3YP8Uh0qaHAmG1UylxoyXGm3kD3ZDDS5Zy:vYLeqaxOUyx7XfkDJDDS5Zy
Threatray 984 similar samples on MalwareBazaar
TLSH 6B55D022BE914837D1B3EA389C0B6374DC36BE10293859866BF5EC485F39B50396D397
Reporter abuse_ch
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
2
# of downloads :
139
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/58671/
Detection(s):
SecuriteInfo.com.Variant.Zusy.312889.2566.6450.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
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/464161
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code references suspicious native API functions
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
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 signatures2 2 Behavior Graph ID: 284485 Sample: q4TCxs0HpG.exe Startdate: 11/09/2020 Architecture: WINDOWS Score: 100 72 Yara detected MassLogger RAT 2->72 74 Yara detected AntiVM_3 2->74 76 Sigma detected: Drops script at startup location 2->76 78 6 other signatures 2->78 9 q4TCxs0HpG.exe 2->9         started        12 wscript.exe 1 2->12         started        process3 signatures4 88 Writes to foreign memory regions 9->88 90 Allocates memory in foreign processes 9->90 92 Queues an APC in another process (thread injection) 9->92 94 Contains functionality to detect sleep reduction / modifications 9->94 14 notepad.exe 5 9->14         started        18 bfajjskd.exe 12->18         started        process5 file6 46 C:\Users\user\AppData\...\bfajjskd.exe, PE32 14->46 dropped 48 C:\Users\...\bfajjskd.exe:Zone.Identifier, ASCII 14->48 dropped 50 C:\Users\user\AppData\Roaming\...\win.vbs, ASCII 14->50 dropped 100 Creates files in alternative data streams (ADS) 14->100 102 Drops VBS files to the startup folder 14->102 20 bfajjskd.exe 14->20         started        104 Maps a DLL or memory area into another process 18->104 23 bfajjskd.exe 18->23         started        25 bfajjskd.exe 2 18->25         started        signatures7 process8 dnsIp9 80 Multi AV Scanner detection for dropped file 20->80 82 Detected unpacking (changes PE section rights) 20->82 84 Detected unpacking (creates a PE file in dynamic memory) 20->84 86 5 other signatures 20->86 28 bfajjskd.exe 15 9 20->28         started        32 bfajjskd.exe 20->32         started        34 bfajjskd.exe 23->34         started        58 54.225.66.103, 49721, 80 AMAZON-AESUS United States 25->58 60 nagano-19599.herokussl.com 25->60 62 2 other IPs or domains 25->62 36 WerFault.exe 25->36         started        signatures10 process11 dnsIp12 64 mail.privateemail.com 198.54.122.60, 49715, 49732, 587 NAMECHEAP-NETUS United States 28->64 66 elb097307-934924932.us-east-1.elb.amazonaws.com 54.225.195.221, 49711, 49730, 80 AMAZON-AESUS United States 28->66 70 2 other IPs or domains 28->70 96 Tries to steal Mail credentials (via file access) 28->96 98 Maps a DLL or memory area into another process 34->98 38 bfajjskd.exe 34->38         started        42 bfajjskd.exe 34->42         started        68 192.168.2.1 unknown unknown 36->68 signatures13 process14 dnsIp15 52 nagano-19599.herokussl.com 38->52 54 mail.privateemail.com 38->54 56 2 other IPs or domains 38->56 44 C:\Users\user\AppData\Local\Temp\...\Log.txt, ASCII 38->44 dropped file16
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/190429a9b3c77af4591eadffb647e4e0ecf4eb707a64cdd32573736b3edab8d4/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2020-09-11 12:20:10 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=decctknty55piwi6vx73mr7e4dwpj23qpjsm3uzfonzwwpw2xdka._file
Verdict:
malicious
Label(s):
hawkeyekeylogger
Create hunting rule
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MassLogger
+ 974 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/200911-1xvatnentj/
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:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/190429a9b3c77af4591eadffb647e4e0ecf4eb707a64cdd32573736b3edab8d4

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 190429a9b3c77af4591eadffb647e4e0ecf4eb707a64cdd32573736b3edab8d4

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/410920/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/58671/

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