MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 db3f92f095d2ddc0e019b2f387bf03b04db4115162472565800f10eba26be5b1. 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: 10


Maldoc score: 13


Intelligence 10 IOCs YARA File information Comments

SHA256 hash: db3f92f095d2ddc0e019b2f387bf03b04db4115162472565800f10eba26be5b1
SHA3-384 hash: 88affdf25b7c371e3d13b39d56bda379d4b18fce925e8796a0eddd2ae0b1be73f8bc38011ce6613e58da30d02c013c16
SHA1 hash: a6a6cf4b87c71a2e47295a55f4bf149c01af42d5
MD5 hash: dda42b3070fa52baa57b39cf06a45d66
humanhash: tennis-diet-tennis-utah
File name:C87b1mDlYqpH306206.xlsm
Download: download sample
Signature SnakeKeylogger
File size:105'373 bytes
First seen:2021-10-28 15:25:41 UTC
Last seen:2021-10-28 16:24:18 UTC
File type:Excel file xlsm
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 3072:z3OKZu86S3Roy9uFwZlsaFPOHYonHBxqPZmo2:z+YuS/IwZltFPgYonHBxqPZg
TLSH T172A302E6266E697FF38F89398409730FDB911941A8056CA64D9DB14F785C8E30312E9E
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
A1527 bytesPROJECT
A289 bytesPROJECTwm
A3169 bytesVBA/Sheet1
A41142 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
IOCHfvfjjqbdetbitmifrv.Executable 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 :
167
Origin country :
n/a
Vendor Threat Intelligence
Verdict:
Malicious
File type:
application/vnd.ms-excel.sheet.macroEnabled.12
Has a screenshot:
False
Contains macros:
True
Result
Verdict:
Malicious
File Type:
Excel File with Macro
Document image
Document image
Result
Verdict:
MALICIOUS
Details
Base64 Encoded Powershell Directives
Detected one or more base64 encoded Powershell directives.
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:
Clipboard Hijacker Snake Keylogger
Detection:
malicious
Classification:
bank.troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code references suspicious native API functions
Antivirus detection for dropped file
Antivirus detection for URL or domain
Binary or sample is protected by dotNetProtector
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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)
Encrypted powershell cmdline option found
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted 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
Sigma detected: Suspicious PowerShell Cmdline
Tries to delay execution (extensive OutputDebugStringW loop)
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 access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Clipboard Hijacker
Yara detected Snake Keylogger
Yara detected Telegram RAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 511146 Sample: C87b1mDlYqpH306206.xlsm Startdate: 28/10/2021 Architecture: WINDOWS Score: 100 77 Multi AV Scanner detection for domain / URL 2->77 79 Malicious sample detected (through community Yara rule) 2->79 81 Antivirus detection for URL or domain 2->81 83 15 other signatures 2->83 10 EXCEL.EXE 76 18 2->10         started        14 taskeng.exe 1 2->14         started        16 FB_97F1.tmp.exe 2->16         started        18 2 other processes 2->18 process3 file4 63 C:\Users\user\...\Hfvfjjqbdetbitmifrv.bat, ASCII 10->63 dropped 65 C:\Users\...\C87b1mDlYqpH306206.xlsm. (copy), Microsoft 10->65 dropped 115 Document exploit detected (creates forbidden files) 10->115 20 cmd.exe 10->20         started        23 sergf.exe 1 14->23         started        signatures5 process6 signatures7 95 Malicious encrypted Powershell command line found 20->95 97 Encrypted powershell cmdline option found 20->97 25 powershell.exe 12 7 20->25         started        99 Multi AV Scanner detection for dropped file 23->99 101 Machine Learning detection for dropped file 23->101 103 Tries to delay execution (extensive OutputDebugStringW loop) 23->103 105 Injects a PE file into a foreign processes 23->105 30 cmd.exe 23->30         started        32 sergf.exe 23->32         started        34 cmd.exe 23->34         started        process8 dnsIp9 75 coachcarmenwilliams.com 107.180.51.17, 49165, 80 AS-26496-GO-DADDY-COM-LLCUS United States 25->75 67 C:\Users\user\AppData\Roamingwukwnqjh.exe, PE32 25->67 dropped 117 Powershell drops PE file 25->117 36 Ewukwnqjh.exe 2 25->36         started        39 schtasks.exe 30->39         started        file10 signatures11 process12 signatures13 107 Multi AV Scanner detection for dropped file 36->107 109 Machine Learning detection for dropped file 36->109 111 Tries to delay execution (extensive OutputDebugStringW loop) 36->111 113 2 other signatures 36->113 41 Ewukwnqjh.exe 5 36->41         started        44 cmd.exe 36->44         started        47 cmd.exe 1 36->47         started        process14 file15 57 C:\Users\user\AppData\...\FB_A145.tmp.exe, PE32 41->57 dropped 59 C:\Users\user\AppData\...\FB_97F1.tmp.exe, PE32 41->59 dropped 49 FB_A145.tmp.exe 12 41->49         started        53 FB_97F1.tmp.exe 1 9 41->53         started        119 Uses schtasks.exe or at.exe to add and modify task schedules 44->119 55 schtasks.exe 44->55         started        61 C:\Users\user\AppData\Roaming\...\sergf.exe, PE32 47->61 dropped signatures16 process17 dnsIp18 69 checkip.dyndns.com 193.122.130.0, 49166, 80 ORACLE-BMC-31898US United States 49->69 71 freegeoip.app 172.67.188.154, 443, 49167 CLOUDFLARENETUS United States 49->71 73 checkip.dyndns.org 49->73 85 Antivirus detection for dropped file 49->85 87 Multi AV Scanner detection for dropped file 49->87 89 May check the online IP address of the machine 49->89 93 3 other signatures 49->93 91 Machine Learning detection for dropped file 53->91 signatures19
Threat name:
Document-Excel.Trojan.Heuristic
Status:
Malicious
First seen:
2021-10-28 10:23:55 UTC
AV detection:
5 of 44 (11.36%)
Threat level:
  2/5
Result
Malware family:
snakekeylogger
Score:
  10/10
Tags:
family:snakekeylogger collection keylogger macro persistence spyware stealer
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies registry class
NTFS ADS
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious behavior: SetClipboardViewer
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
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Looks up external IP address via web service
Deletes itself
Drops startup file
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://coachcarmenwilliams.com/C87b1mDlYqpH306206IMG.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.

Comments