MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 43a5c4c699ed770d7cb1905974ce708b67d76e3d4c15734a067dafb62a9b986e. 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: 43a5c4c699ed770d7cb1905974ce708b67d76e3d4c15734a067dafb62a9b986e
SHA3-384 hash: 497a97894d905325df0974633bb0377fefd810708123aa563a378b0b7caf987b7816717e8ef5300245f84b4736002130
SHA1 hash: bcb7717b60bd95a50395f16b51d5cefce21f056c
MD5 hash: 73a1b31369893735482a5197e7665437
humanhash: vegan-finch-march-charlie
File name:73a1b31369893735482a5197e7665437.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:954'880 bytes
First seen:2020-07-28 13:16:26 UTC
Last seen:2020-07-28 14:07:38 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 20e6d5abed83baa72fa27d4f775f9f3c (7 x AgentTesla, 5 x MassLogger, 1 x QuasarRAT)
ssdeep 24576:VcojK7LuBl6gNYoVVYmxYr/KzVNKnMxYUBj/4ILokMo:VNkLAJzVNdzLKnM+UR5
Threatray 2'169 similar samples on MalwareBazaar
TLSH E615D062F3E04933D1A72A7C9F1B57689835BE003F2959466BE41CCC4F39393356A2A7
Reporter abuse_ch
Tags:exe MassLogger


Avatar
abuse_ch
MassLogger SMTP exfil server:
mail.privateemail.com:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
74
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/33662/
Detection(s):
PUA.Win.Adware.Slugin-6803969-0
Create hunting rule

PUA.Win.Adware.Slugin-6840354-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Launching a process
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
Sending an HTTP GET request
Using the Windows Management Instrumentation requests
Creating a file
Reading Telegram data
Reading critical registry keys
Moving a recently created file
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 with Startup directory
Result
Threat name:
MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/400347
Signature
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
Found malware configuration
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)
Yara detected AntiVM_3
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 252527 Sample: LKGns1cVkr.exe Startdate: 28/07/2020 Architecture: WINDOWS Score: 100 40 g.msn.com 2->40 42 asf-ris-prod-neurope.northeurope.cloudapp.azure.com 2->42 56 Found malware configuration 2->56 58 Multi AV Scanner detection for submitted file 2->58 60 Yara detected MassLogger RAT 2->60 62 5 other signatures 2->62 9 LKGns1cVkr.exe 2->9         started        12 wscript.exe 1 2->12         started        signatures3 process4 signatures5 72 Queues an APC in another process (thread injection) 9->72 74 Contains functionality to detect sleep reduction / modifications 9->74 14 notepad.exe 5 9->14         started        18 dndjsfmsdds.exe 12->18         started        process6 file7 34 C:\Users\user\AppData\...\dndjsfmsdds.exe, PE32 14->34 dropped 36 C:\Users\...\dndjsfmsdds.exe:Zone.Identifier, ASCII 14->36 dropped 38 C:\Users\user\AppData\Roaming\...\web.vbs, ASCII 14->38 dropped 78 Creates files in alternative data streams (ADS) 14->78 80 Drops VBS files to the startup folder 14->80 20 dndjsfmsdds.exe 14->20         started        82 Maps a DLL or memory area into another process 18->82 23 dndjsfmsdds.exe 6 18->23         started        26 dndjsfmsdds.exe 18->26         started        signatures8 process9 dnsIp10 64 Multi AV Scanner detection for dropped file 20->64 66 Detected unpacking (changes PE section rights) 20->66 68 Detected unpacking (creates a PE file in dynamic memory) 20->68 70 5 other signatures 20->70 28 dndjsfmsdds.exe 15 6 20->28         started        32 dndjsfmsdds.exe 20->32         started        44 23.21.203.116, 49728, 80 AMAZON-AESUS United States 23->44 46 nagano-19599.herokussl.com 23->46 48 2 other IPs or domains 23->48 signatures11 process12 dnsIp13 50 elb097307-934924932.us-east-1.elb.amazonaws.com 54.235.182.194, 49723, 80 AMAZON-AESUS United States 28->50 52 nagano-19599.herokussl.com 28->52 54 api.ipify.org 28->54 76 Tries to steal Mail credentials (via file access) 28->76 signatures14
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/43a5c4c699ed770d7cb1905974ce708b67d76e3d4c15734a067dafb62a9b986e/
Threat name:
Win32.Trojan.DataStealer
Create hunting rule
Status:
Malicious
First seen:
2020-07-28 13:18:08 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ios4jruz5v3q27frsbmxjttqrnt5o3r5jqkxgsqgpwx3mku3tbxa._file
Verdict:
malicious
Label(s):
hawkeyekeylogger
Create hunting rule
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MassLogger
+ 2'159 additional samples on MalwareBazaar
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
ransomware upx stealer spyware family:masslogger
Link:
https://tria.ge/reports/200728-5dxaye17y2/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
NTFS ADS
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: AddClipboardFormatListener
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Looks up external IP address via web service
Loads dropped DLL
Drops startup file
Reads user/profile data of web browsers
UPX packed file
Executes dropped EXE
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/43a5c4c699ed770d7cb1905974ce708b67d76e3d4c15734a067dafb62a9b986e

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 43a5c4c699ed770d7cb1905974ce708b67d76e3d4c15734a067dafb62a9b986e

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/33662/
  
URLhaus
https://urlhaus.abuse.ch/url/412466/
  
Delivery method
Distributed via web download

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