MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 4b21973994a4c674d4dd888226ffdfc50704bf10bdf6503c6c4a1c31ad95bfa2. 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: 9
| SHA256 hash: | 4b21973994a4c674d4dd888226ffdfc50704bf10bdf6503c6c4a1c31ad95bfa2 |
|---|---|
| SHA3-384 hash: | e1a00d4174f064807917556dc2f5e127451d4376a38ad3eac1a069cabb7f927ad1b4ebd402e4252b75a7083ab8fdea6a |
| SHA1 hash: | 13b3e65876c238ed6257590116c7817ce1b40260 |
| MD5 hash: | 4efddcb5dc1617bd8a38451657291b42 |
| humanhash: | fish-saturn-minnesota-cup |
| File name: | svch.exe |
| Download: | download sample |
| Signature | MassLogger |
| File size: | 1'094'144 bytes |
| First seen: | 2021-05-11 13:02:32 UTC |
| Last seen: | 2021-05-11 13:53:31 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'654 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger) |
| ssdeep | 24576:foLA+2/nen/lDwXBPRQ2rbcOnUo9OLd+NxMaPeQ/4qKx:CcnenSXhCy7Uo9OLQ4a/4H |
| Threatray | 629 similar samples on MalwareBazaar |
| TLSH | 1B35BEFC755464FDD34B5C23A7CF0C0682252274AA3B690B8B2113BA5A5BE173F399C9 |
| Reporter |  James_inthe_box |
| Tags: | exe MassLogger |
Intelligence
File Origin
# of uploads :
2
# of downloads :
186
Origin country :
n/a
Vendor Threat Intelligence
Detection:
MassLogger
Result
Verdict:
Malware
Maliciousness:
Behaviour
DHCP request
Sending a UDP request
Launching a process
Creating a window
Launching a service
Modifying a system file
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
DNS request
Sending an HTTP GET request
Enabling autorun by creating a file
Deleting of the original file
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
MassLogger RAT
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Adds a directory exclusion to Windows Defender
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
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)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Spyware.Noon
Status:
Malicious
First seen:
2021-05-11 09:41:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
21 of 29 (72.41%)
Threat level:
2/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
masslogger
Similar samples:
+ 619 additional samples on MalwareBazaar
Result
Malware family:
masslogger
Score:
10/10
Tags:
family:masslogger spyware stealer
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
MassLogger
MassLogger Main Payload
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
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: | INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu |
|---|---|
| Author: | ditekSHen |
| Description: | Detect executables with stomped PE compilation timestamp that is greater than local current time |
| Rule name: | Keylog_bin_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | Contains Keylog |
| Rule name: | MassLogger |
|---|---|
| Author: | kevoreilly |
| Description: | MassLogger |
| Rule name: | masslogger_gcch |
|---|---|
| Author: | govcert_ch |
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| 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.
Delivery method
Other
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