MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6391f077fabb4d0ecaf412c43d048c4abd7dd9ad0dd5ff4a42d497b88c9f545f. 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: 6391f077fabb4d0ecaf412c43d048c4abd7dd9ad0dd5ff4a42d497b88c9f545f
SHA3-384 hash: e6a0d895445397e4c1ae539d43952b4209c66f768fa31473e05e741344123f99c4f15b80ac829eed8f6938d224e558a4
SHA1 hash: a7c3344e3c4e36d69372b754ea48d8161722ca2a
MD5 hash: f7bb7f0d16c958dcae815bfb6edcbda9
humanhash: lemon-blossom-tango-october
File name:f7bb7f0d16c958dcae815bfb6edcbda9.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:1'090'048 bytes
First seen:2020-09-14 05:53:10 UTC
Last seen:2020-09-14 06:52:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash a37dabab645e6a3a3647e1c3e0a095f3 (9 x MassLogger, 3 x AgentTesla, 1 x Loki)
ssdeep 24576:MBZbh/ffFxC/IyVd43vz6ia1cjjnmT3yYSEg:M5NaVd6vz6iKcjjnmT3yYM
Threatray 525 similar samples on MalwareBazaar
TLSH 3635AF22E2E0483ED1B31A785C1B52F49C3ABD313F2899466BECDD4C5F3869139653A7
Reporter abuse_ch
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
2
# of downloads :
96
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/58945/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.34520560.13113.7276.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
Sending a UDP request
DNS request
Sending an HTTP GET request
Using the Windows Management Instrumentation requests
Creating a file
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 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/465010
Signature
Allocates memory in foreign processes
Contains functionality to detect sleep reduction / modifications
Creates files in alternative data streams (ADS)
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 steal Mail credentials (via file access)
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 284914 Sample: zO277wPgrZ.exe Startdate: 14/09/2020 Architecture: WINDOWS Score: 100 51 Found malware configuration 2->51 53 Multi AV Scanner detection for submitted file 2->53 55 Yara detected MassLogger RAT 2->55 57 4 other signatures 2->57 8 zO277wPgrZ.exe 2->8         started        11 wscript.exe 1 2->11         started        process3 signatures4 67 Writes to foreign memory regions 8->67 69 Allocates memory in foreign processes 8->69 71 Queues an APC in another process (thread injection) 8->71 73 Contains functionality to detect sleep reduction / modifications 8->73 13 notepad.exe 5 8->13         started        17 fbfjhss.exe 11->17         started        process5 file6 33 C:\Users\user\AppData\Roaming\...\fbfjhss.exe, PE32 13->33 dropped 35 C:\Users\user\...\fbfjhss.exe:Zone.Identifier, ASCII 13->35 dropped 37 C:\Users\user\AppData\Roaming\...\win.vbs, ASCII 13->37 dropped 77 Creates files in alternative data streams (ADS) 13->77 79 Drops VBS files to the startup folder 13->79 19 fbfjhss.exe 13->19         started        81 Maps a DLL or memory area into another process 17->81 22 fbfjhss.exe 6 17->22         started        25 fbfjhss.exe 17->25         started        signatures7 process8 dnsIp9 59 Multi AV Scanner detection for dropped file 19->59 61 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 19->61 63 Machine Learning detection for dropped file 19->63 65 2 other signatures 19->65 27 fbfjhss.exe 15 6 19->27         started        31 fbfjhss.exe 19->31         started        39 54.235.169.38, 49727, 80 AMAZON-AESUS United States 22->39 41 nagano-19599.herokussl.com 22->41 43 2 other IPs or domains 22->43 signatures10 process11 dnsIp12 45 elb097307-934924932.us-east-1.elb.amazonaws.com 23.21.125.18, 49718, 80 AMAZON-AESUS United States 27->45 47 nagano-19599.herokussl.com 27->47 49 api.ipify.org 27->49 75 Tries to steal Mail credentials (via file access) 27->75 signatures13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6391f077fabb4d0ecaf412c43d048c4abd7dd9ad0dd5ff4a42d497b88c9f545f/
Threat name:
Win32.Backdoor.Androm
Create hunting rule
Status:
Malicious
First seen:
2020-09-14 01:34:30 UTC
File Type:
PE (Exe)
Extracted files:
85
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=moi7a572xngq5sxuclcd2bemjk6x3wnnbxk76ssc2sl3rde7krpq._file
Verdict:
malicious
Label(s):
hawkeyekeylogger
Create hunting rule
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0889245c6fdc245d14cf4dac36f55ae3228396b25bfeab0d33b00dfb19e788a9
MassLogger
0af72ca3fe6668a143d9fcb21ff59cc4629ee4e82feb79e9d566f19f0db77eb5
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45e3a9f28c7e79a55264a5c88490dfe51a73639eac96e29f724bdc96232e341b
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7920cfd32426a9f0b8ad80dcae145d1befcfefcaf55faa4ad45870bf0d780c2e
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ab9e3186ee9c7ae254e6e3e14bcbc9be0e1ad64461b99007c5a8393299ea93af
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b7c38b8ca8e90da906c7df9ea379e0c9386780ee32b174cd1f82cd8662822efc
MassLogger
d251c653db7e7df1e0d7858d8e1870055a5ccdd5749295c1a41a1e47f2a3c109
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d31f78ca870cb00d01149673057fa11f2d241d68debca8c85c8460bd775ae431
MassLogger
f27eb43c59ea9a9f7ffc4e9bb14e67fd1667825c0e8851d4a1abb9441180076a
MassLogger
+ 515 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/200914-5zgvnp6qf6/
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/6391f077fabb4d0ecaf412c43d048c4abd7dd9ad0dd5ff4a42d497b88c9f545f

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 6391f077fabb4d0ecaf412c43d048c4abd7dd9ad0dd5ff4a42d497b88c9f545f

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/410909/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/58945/

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