MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 4bb6d08dad879c7e0098024d645c92c198484e1d7703019fa0db7ead6f867bfd. 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
| SHA256 hash: | 4bb6d08dad879c7e0098024d645c92c198484e1d7703019fa0db7ead6f867bfd |
|---|---|
| SHA3-384 hash: | 0cfa16b2ca49cd65dfa707c14a636e13fc9de0a4b01634cc62bde797de0c3d122496f7422a55d6b254fbe4fa48e0ebd0 |
| SHA1 hash: | 78665b05a2b48809edd743b658cf25d731d5f5e6 |
| MD5 hash: | c23ce4292b1f9362d12198167849bb80 |
| humanhash: | item-romeo-jersey-sink |
| File name: | 58506013077.xlsm |
| Download: | download sample |
| Signature | SnakeKeylogger |
| File size: | 104'604 bytes |
| First seen: | 2022-02-08 17:07:19 UTC |
| Last seen: | Never |
| File type: |  xlsm |
| MIME type: | application/vnd.openxmlformats-officedocument.spreadsheetml.sheet |
| ssdeep | 3072:y5OKZu86S3Roy9uFwZlsaFPOHYonHBxqPZ5l/:y8YuS/IwZltFPgYonHBxqPZv/ |
| TLSH | T18CA31295366F657FE28F8D3D8406330FEBA105469D466CA60EADB14F785C8E30312E9E |
| Reporter |  abuse_ch |
| Tags: | SnakeKeylogger xlsm |
abuse_ch
SnakeKeylogger payload URLs:http://3.112.243.28/net/Nhmrwsew.bat
http://3.112.243.28/net/Nhmrwsew.log
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 ID | Section size | Section name |
|---|---|---|
| A1 | 531 bytes | PROJECT |
| A2 | 89 bytes | PROJECTwm |
| A3 | 169 bytes | VBA/Sheet1 |
| A4 | 340 bytes | VBA/ThisWorkbook |
| A5 | 171 bytes | VBA/Workbook |
| A6 | 7 bytes | VBA/_VBA_PROJECT |
| A7 | 228 bytes | VBA/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:
| Type | Keyword | Description |
|---|---|---|
| AutoExec | Workbook_Open | Runs when the Excel Workbook is opened |
| IOC | 3.112.243.28 | IPv4 address |
| IOC | certutil.exe | Executable file name |
| IOC | Nhmrwsew.bat | Executable file name |
| IOC | Dcutjwllhg.exe | Executable file name |
| Suspicious | Shell | May run an executable file or a system command |
| Suspicious | vbHide | May run an executable file or a system command |
| Suspicious | Hex Strings | Hex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all) |
| Suspicious | Base64 Strings | Base64-encoded strings were detected, may be used to obfuscate strings (option --decode to see all) |
Intelligence
File Origin
# of uploads :
1
# of downloads :
156
Origin country :
n/a
Vendor Threat Intelligence
Verdict:
Malicious
File type:
application/vnd.ms-excel.sheet.macroEnabled.12
Has a screenshot:
False
Contains macros:
False
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
DNS request
Sending a custom TCP request
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Launching a process
Creating a file
Creating a process from a recently created file
Running batch commands
Unauthorized injection to a recently created process
Running batch commands by exploiting the app vulnerability
Sending an HTTP GET request to an infection source
Result
Verdict:
Malicious
File Type:
Excel File with Macro
Payload URLs
URL
File name
http://3.112.243.28/net/Nhmrwsew.bat
ThisWorkbook
Document image
Image:
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
certutil certutil.exe cmd macros macros-on-open
Label:
Malicious
Suspicious Score:
9.9/10
Score Malicious:
1%
Score Benign:
0%
Result
Verdict:
MALICIOUS
Link:
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.spyw.expl.evad
Score:
100 / 100
Behaviour
Behavior Graph:
n/a
Threat name:
Script-Macro.Downloader.Powdow
Status:
Malicious
First seen:
2022-02-08 15:50:31 UTC
File Type:
Document
Extracted files:
28
AV detection:
18 of 28 (64.29%)
Threat level:
3/5
Detection(s):
Suspicious file
Result
Malware family:
snakekeylogger
Score:
10/10
Tags:
family:snakekeylogger collection keylogger macro persistence spyware stealer
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Enumerates system info in registry
Modifies Internet Explorer settings
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
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Downloads MZ/PE file
Executes dropped EXE
Process spawned unexpected child process
Snake Keylogger
Snake Keylogger Payload
Malware family:
Phoenix
Verdict:
Malicious
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.
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