MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e5589fa39f2ac2193d974679d599e6f4f064a358922f3ad99675859efad1f1d5. 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: 13


Maldoc score: 13


Intelligence 13 IOCs YARA File information Comments

SHA256 hash: e5589fa39f2ac2193d974679d599e6f4f064a358922f3ad99675859efad1f1d5
SHA3-384 hash: ca2cd1ecf8c60ecf847dd9ac79988365f3fbd771619b3ad019fe7b58ab717e45d15fd4efb3351f2b24f8b692f75ed355
SHA1 hash: be73ebfa26c337f8b3aac9ce6223cb85d05462d4
MD5 hash: 8eefc88446e9c96bc929eac6962d682c
humanhash: violet-snake-delaware-winter
File name:PO.xlsm
Download: download sample
Signature SnakeKeylogger
File size:105'342 bytes
First seen:2021-11-24 17:16:00 UTC
Last seen:2021-11-24 18:52:07 UTC
File type:Excel file xlsm
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 3072:3DOKZu86S3Roy9uFwZlsaFPOHYonHBxqPZav:3SYuS/IwZltFPgYonHBxqPZw
TLSH T169A31295777E763FE38F8D38540A330FEB950946980A7C665DA9A24F785C4E30302DAE
Reporter abuse_ch
Tags:SnakeKeylogger xlsm

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: 13
OLE dump

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

Section IDSection sizeSection name
A1533 bytesPROJECT
A289 bytesPROJECTwm
A3169 bytesVBA/Sheet1
A41110 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_ActivateRuns when the Excel Workbook is opened
IOCJphrjxklydibx.batExecutable file name
SuspiciousOpenMay open a file
SuspiciousOutputMay write to a file (if combined with Open)
SuspiciousShellMay run an executable file or a system command
SuspiciousStrReverseMay attempt to obfuscate specific strings (use option --deobf to deobfuscate)
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 :
2
# of downloads :
130
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO.xlsm
Verdict:
Malicious activity
Analysis date:
2021-11-24 21:39:17 UTC
Tags:
macros macros-on-open evasion trojan snakekeylogger keylogger loader

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
File type:
application/vnd.ms-excel.sheet.macroEnabled.12
Has a screenshot:
False
Contains macros:
True
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
DNS request
Creating a window
Сreating synchronization primitives
Creating a file
Creating a process with a hidden window
Creating a file in the %temp% directory
Sending an HTTP GET request
Creating a file in the %AppData% directory
Creating a process from a recently created file
Running batch commands by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
Excel File with Macro
Document image
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd macros macros-on-open powershell
Result
Verdict:
MALICIOUS
Details
Macro with Startup Hook
Detected macro logic that will automatically execute on document open. Most malware contains some execution hook.
Macro with File System Write
Detected macro logic that can write data to the file system.
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...
Base64 Encoded URL
Detected an ANSI or UNICODE http:// or https:// base64 encoded URL prefix.
Document With No Content
Document contains little or no semantic information.
Result
Threat name:
Snake Keylogger
Detection:
malicious
Classification:
bank.troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Document contains an embedded VBA macro which may execute processes
Document contains VBA stomped code (only p-code) potentially bypassing AV detection
Document exploit detected (creates forbidden files)
Document exploit detected (process start blacklist hit)
Drops executable to a common third party application directory
Encrypted powershell cmdline option found
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious encrypted Powershell command line found
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Multi AV Scanner detection for dropped file
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Powershell drops PE file
Sigma detected: Microsoft Office Product Spawning Windows Shell
Sigma detected: Suspicious Encoded PowerShell Command Line
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 harvest and steal ftp login credentials
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected Snake Keylogger
Yara detected Telegram RAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 528070 Sample: PO.xlsm Startdate: 24/11/2021 Architecture: WINDOWS Score: 100 86 Found malware configuration 2->86 88 Malicious sample detected (through community Yara rule) 2->88 90 Multi AV Scanner detection for dropped file 2->90 92 12 other signatures 2->92 9 EXCEL.EXE 76 18 2->9         started        13 pdf.exe 1 2->13         started        15 pdf.exe 2->15         started        process3 file4 38 C:\Users\user\Documents\Jphrjxklydibx.bat, ASCII 9->38 dropped 40 C:\Users\user\Desktop\~$PO.xlsm, data 9->40 dropped 42 C:\Users\user\Desktop\PO.xlsm. (copy), Microsoft 9->42 dropped 100 Document exploit detected (creates forbidden files) 9->100 17 cmd.exe 9->17         started        44 C:\Users\user\AppData\Local\Temp\pdf.exe, PE32 13->44 dropped 102 Writes to foreign memory regions 13->102 104 Allocates memory in foreign processes 13->104 106 Injects a PE file into a foreign processes 13->106 20 pdf.exe 12 13->20         started        23 pdf.exe 15->23         started        signatures5 process6 dnsIp7 72 Malicious encrypted Powershell command line found 17->72 74 Encrypted powershell cmdline option found 17->74 25 powershell.exe 12 7 17->25         started        58 checkip.dyndns.org 20->58 60 158.101.44.242, 49168, 80 ORACLE-BMC-31898US United States 20->60 68 3 other IPs or domains 20->68 76 Multi AV Scanner detection for dropped file 20->76 78 May check the online IP address of the machine 20->78 80 Tries to steal Mail credentials (via file / registry access) 20->80 62 checkip.dyndns.org 23->62 64 freegeoip.app 23->64 66 checkip.dyndns.com 23->66 82 Tries to harvest and steal ftp login credentials 23->82 84 Tries to harvest and steal browser information (history, passwords, etc) 23->84 signatures8 process9 dnsIp10 70 65.2.149.25, 49165, 80 AMAZON-02US United States 25->70 46 C:\Users\user\AppData\Roaming\Dfecurb.exe, PE32 25->46 dropped 108 Powershell drops PE file 25->108 30 Dfecurb.exe 1 3 25->30         started        file11 signatures12 process13 file14 48 C:\Users\user\AppData\Roaming\...\pdf.exe, PE32 30->48 dropped 50 C:\Users\user\AppData\Local\...\Dfecurb.exe, PE32 30->50 dropped 110 Multi AV Scanner detection for dropped file 30->110 112 Writes to foreign memory regions 30->112 114 Allocates memory in foreign processes 30->114 116 2 other signatures 30->116 34 Dfecurb.exe 12 30->34         started        signatures15 process16 dnsIp17 52 checkip.dyndns.org 34->52 54 checkip.dyndns.com 193.122.6.168, 49166, 49170, 80 ORACLE-BMC-31898US United States 34->54 56 freegeoip.app 188.114.96.21, 443, 49167, 49171 CLOUDFLARENETUS European Union 34->56 94 Multi AV Scanner detection for dropped file 34->94 96 May check the online IP address of the machine 34->96 98 Tries to steal Mail credentials (via file / registry access) 34->98 signatures18
Threat name:
Document-Excel.Trojan.Powload
Status:
Malicious
First seen:
2021-11-24 17:16:11 UTC
File Type:
Document
Extracted files:
28
AV detection:
13 of 26 (50.00%)
Threat level:
  5/5
Result
Malware family:
snakekeylogger
Score:
  10/10
Tags:
family:snakekeylogger collection keylogger macro persistence spyware stealer
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies registry class
NTFS ADS
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
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
Adds Run key to start application
Looks up external IP address via web service
Deletes itself
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
Blocklisted process makes network request
Downloads MZ/PE file
Executes dropped EXE
Process spawned unexpected child process
Snake Keylogger
Malware Config
Dropper Extraction:
http://65.2.149.25/pef/B/ipv6/BAUBCOMDOWPAGWJH.exe
Malware family:
Phoenix
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Malspam

SnakeKeylogger

Excel file xlsm e5589fa39f2ac2193d974679d599e6f4f064a358922f3ad99675859efad1f1d5

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments