MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f7df41bb2f648ae746c4663406c0422d1e1cc3668915b127fd7da2b81794f377. 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


Intelligence File information Yara 2 Comments

SHA256 hash: f7df41bb2f648ae746c4663406c0422d1e1cc3668915b127fd7da2b81794f377
SHA3-384 hash: 32efc4c7a2bd0217d727af9715a01b1148156e2446b691679d89ad5b3b5b633de3737bb7078f1e41fec993dc8a88377f
SHA1 hash: e7832129e7600697e6b46346292185ec22a04fc5
MD5 hash: 5a93bf319a3a7b471bc75fb02a82118a
humanhash: white-lima-pasta-nitrogen
File name:5a93bf319a3a7b471bc75fb02a82118a.exe
Download: download sample
Signature MassLogger
File size:939'008 bytes
First seen:2020-07-31 08:31:02 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 2e374e6a01735b73e577e6a14415ed0c
ssdeep 24576:liQOD2qr1K2rNsU4nInXt3cfWV5aciEZV07rmfq:k9x4nInXtMfWVbPZV0fmfq
TLSH E115D033B2E14532D123163F9C1B67A9A83ABE1C3A2499462BF52D4C5F38771742F297
Reporter @abuse_ch
Tags:exe MassLogger


Twitter
@abuse_ch
MassLogger SMTP exfil server:
mail.privateemail.com:587

Intelligence


File Origin
# of uploads :
1
# of downloads :
28
Origin country :
US US
Mail intelligence
No data
Vendor Threat Intelligence
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 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
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Contains functionality to detect sleep reduction / modifications
Contains functionality to inject code into remote processes
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
Maps a DLL or memory area into another process
May check the online IP address of the machine
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 MassLogger RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 255239 Sample: 6Na5gmlcSn.exe Startdate: 31/07/2020 Architecture: WINDOWS Score: 100 40 g.msn.com 2->40 54 Found malware configuration 2->54 56 Yara detected MassLogger RAT 2->56 58 Yara detected AntiVM_3 2->58 60 3 other signatures 2->60 9 6Na5gmlcSn.exe 2->9         started        12 wscript.exe 1 2->12         started        signatures3 process4 signatures5 70 Contains functionality to inject code into remote processes 9->70 72 Writes to foreign memory regions 9->72 74 Allocates memory in foreign processes 9->74 76 2 other signatures 9->76 14 notepad.exe 5 9->14         started        18 mssfsfself.exe 12->18         started        process6 file7 34 C:\Users\user\AppData\...\mssfsfself.exe, PE32 14->34 dropped 36 C:\Users\...\mssfsfself.exe:Zone.Identifier, ASCII 14->36 dropped 38 C:\Users\user\AppData\Roaming\...\web.vbs, ASCII 14->38 dropped 80 Creates files in alternative data streams (ADS) 14->80 82 Drops VBS files to the startup folder 14->82 20 mssfsfself.exe 14->20         started        84 Maps a DLL or memory area into another process 18->84 23 mssfsfself.exe 6 18->23         started        26 mssfsfself.exe 18->26         started        signatures8 process9 dnsIp10 62 Detected unpacking (changes PE section rights) 20->62 64 Detected unpacking (creates a PE file in dynamic memory) 20->64 66 Detected unpacking (overwrites its own PE header) 20->66 68 3 other signatures 20->68 28 mssfsfself.exe 15 6 20->28         started        32 mssfsfself.exe 20->32         started        42 192.168.2.1 unknown unknown 23->42 44 nagano-19599.herokussl.com 23->44 46 2 other IPs or domains 23->46 signatures11 process12 dnsIp13 48 elb097307-934924932.us-east-1.elb.amazonaws.com 54.197.225.198, 49738, 49742, 80 AMAZON-AESUS United States 28->48 50 nagano-19599.herokussl.com 28->50 52 api.ipify.org 28->52 78 Tries to steal Mail credentials (via file access) 28->78 signatures14
Threat name:
Win32.Trojan.DataStealer
Status:
Malicious
First seen:
2020-07-31 08:32:06 UTC
AV detection:
21 of 31 (67.74%)
Threat level
  5/5
Result
Malware family:
masslogger
Score:
  10/10
Tags:
ransomware upx spyware stealer family:masslogger
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious behavior: AddClipboardFormatListener
Suspicious use of WriteProcessMemory
NTFS ADS
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
Executes dropped EXE
UPX packed file
MassLogger
MassLogger log file
Threat name:
Tinba
Score:
1.00

Yara Signatures


Rule name:masslogger_gcch
Author:govcert_ch
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.

Web download

MassLogger

Executable exe f7df41bb2f648ae746c4663406c0422d1e1cc3668915b127fd7da2b81794f377

(this sample)

  
Delivery method
Distributed via web download

Comments