MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b3ea2d0c11c8365cdc6e078e8aed9a4d16d4244d21fbd2cf093f758a5a33e608. 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



SnakeKeylogger


Vendor detections: 12


Maldoc score: 9


Intelligence 12 IOCs YARA 2 File information Comments

SHA256 hash: b3ea2d0c11c8365cdc6e078e8aed9a4d16d4244d21fbd2cf093f758a5a33e608
SHA3-384 hash: 9e210d7d73cc0772cb7c4fbfd1276a45cf4eb1aa04e4f2d12bc812a8b61e8a65574c659daa753d36b3e0611b11ed217d
SHA1 hash: 45e0beb60b00dd78ae7ceaab58765b4bd67a9259
MD5 hash: 93ab8dad0552468087786998c6d68886
humanhash: snake-minnesota-juliet-foxtrot
File name:534897522033.xlsm
Download: download sample
Signature SnakeKeylogger
File size:104'623 bytes
First seen:2022-01-31 11:52:46 UTC
Last seen:Never
File type:Excel file xlsm
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 3072:01OKZu86S3Roy9uFwZlsaFPOHYonHBxqPZfC:0wYuS/IwZltFPgYonHBxqPZ6
TLSH T1E7A30295366B657BF28FCD78440A330FEB9106469D066CE50EA9B24F785D8E30302E9F
Reporter abuse_ch
Tags:SnakeKeylogger xlsm


Avatar
abuse_ch
SnakeKeylogger payload URL:
http://18.156.129.63/entity/534897522033.bat

Office OLE Information


This malware samples appears to be an Office document. The following table provides more information about this document using oletools and oledump.

OLE id
Maldoc score: 9
OLE dump

MalwareBazaar was able to identify 8 sections in this file using oledump:

Section IDSection sizeSection name
A1535 bytesPROJECT
A289 bytesPROJECTwm
A3169 bytesVBA/Sheet1
A4361 bytesVBA/ThisWorkbook
A5171 bytesVBA/Workbook
A67 bytesVBA/_VBA_PROJECT
A7228 bytesVBA/dir
OLE vba

MalwareBazaar was able to extract and deobfuscate VBA script(s) the following information from OLE objects embedded in this file using olevba:

TypeKeywordDescription
AutoExecWorkbook_OpenRuns when the Excel Workbook is opened
IOC18.156.129.63IPv4 address
IOCcertutil.exeExecutable file name
IOC534897522033.batExecutable file name
IOCVboyqmvqvsuoqinonkikExecutable file name
SuspiciousShellMay run an executable file or a system command
SuspiciousvbHideMay run an executable file or a system command
SuspiciousHex StringsHex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)
SuspiciousBase64 StringsBase64-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)

Intelligence


File Origin
# of uploads :
1
# of downloads :
176
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
534897522033.xlsm
Verdict:
Malicious activity
Analysis date:
2022-01-31 12:11:05 UTC
Tags:
macros macros-on-open loader evasion trojan snakekeylogger keylogger

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
DNS request
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Launching a process
Sending an HTTP GET request
Creating a file
Creating a process from a recently created file
Running batch commands
Running batch commands by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
Excel File with Macro
Payload URLs
URL
File name
http://18.156.129.63/entity/534897522033.bat
ThisWorkbook
Document image
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm certutil certutil.exe cmd cmd.exe macros macros-on-open replace.exe
Label:
Malicious
Suspicious Score:
9.9/10
Score Malicious:
1%
Score Benign:
0%
Result
Verdict:
MALICIOUS
Details
Macro with Startup Hook
Detected macro logic that will automatically execute on document open. Most malware contains some execution hook.
IPv4 Dotted Quad URL
A URL was detected referencing a direct IP address, as opposed to a domain name.
Macro Execution Coercion
Detected a document that appears to social engineer the user into activating embedded logic.
Macro Contains Suspicious String
Detected a macro with a suspicious string. Suspicious strings include privileged function calls, obfuscations, odd registry keys, etc...
InQuest Machine Learning
An InQuest machine-learning model classified this macro as potentially malicious.
Document With No Content
Document contains little or no semantic information.
Result
Threat name:
Snake Keylogger
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Behaviour
Behavior Graph:
n/a
Threat name:
Script-Macro.Trojan.Heuristic
Status:
Malicious
First seen:
2022-01-31 11:53:10 UTC
File Type:
Document
Extracted files:
28
AV detection:
6 of 43 (13.95%)
Threat level:
  2/5
Result
Malware family:
snakekeylogger
Score:
  10/10
Tags:
family:snakekeylogger collection keylogger macro persistence stealer
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies data under HKEY_USERS
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Office loads VBA resources, possible macro or embedded object present
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Loads dropped DLL
Uses the VBS compiler for execution
Downloads MZ/PE file
Executes dropped EXE
Sets service image path in registry
Process spawned unexpected child process
Snake Keylogger
Snake Keylogger Payload
Please note that we are no longer able to provide a coverage score for Virus Total.

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:BitcoinAddress
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:malware_shellcode_hash
Author:JPCERT/CC Incident Response Group
Description:detect shellcode api hash value

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

SnakeKeylogger

Excel file xlsm b3ea2d0c11c8365cdc6e078e8aed9a4d16d4244d21fbd2cf093f758a5a33e608

(this sample)

  
Delivery method
Distributed via e-mail attachment

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