MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 20d4be06e6eb3b24ad927696a212f26651e0bbba4f04078cc2d6b67679ab48e5. 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 File information Comments

SHA256 hash: 20d4be06e6eb3b24ad927696a212f26651e0bbba4f04078cc2d6b67679ab48e5
SHA3-384 hash: 7cb4b03c8bc2358029e04fdc599c94a9302c77b723ef29c7043a2e35832054423714ace67b2f65fff033def0fe167743
SHA1 hash: ffdb36c401b5c31bd8445aed651cb0dd8ec97910
MD5 hash: bb155e0582679e7da9d106f72dc104ad
humanhash: hot-xray-kentucky-papa
File name:Docu1067400023.xlsm
Download: download sample
Signature SnakeKeylogger
File size:27'957 bytes
First seen:2022-03-28 07:25:01 UTC
Last seen:Never
File type:Excel file xlsm
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 768:qiZus6kp7RHizQYeHeCBcaC34jImh7LKMif/vpf1:bsoeHezsKtif/d1
TLSH T152C2D0E05F123A68C38609375A25C9122A18309BCF52FD529F2D677C65C1ED1279FE8E
Reporter abuse_ch
Tags:SnakeKeylogger xlsm


Avatar
abuse_ch
Payload URLs:
http://18.179.111.240/1b1/loader/uploads/Docu1067400023.exe
http://18.179.111.240/1b1/loader/uploads/Docu1067400023_Afaemdkm.png

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
A1529 bytesPROJECT
A289 bytesPROJECTwm
A3169 bytesVBA/Sheet1
A4371 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
IOC18.179.111.240IPv4 address
IOCcertutil.exeExecutable file name
IOCDocu1067400023.exeExecutable file name
IOCBdhjsqljaqzfroxhhxrkExecutable 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 :
237
Origin country :
n/a
Vendor Threat Intelligence
Verdict:
Malicious
File type:
application/octet-stream
Has a screenshot:
False
Contains macros:
False
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
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
Unauthorized injection to a recently created process
Running batch commands by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
Excel File with Macro
Payload URLs
URL
File name
http://18.179.111.240/1b1/loader/uploads/Docu1067400023.exe
ThisWorkbook
Document image
Document 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
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
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus detection for URL or domain
Document contains an embedded VBA macro which may execute processes
Document exploit detected (process start blacklist hit)
Drops PE files to the document folder of the user
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
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)
Sigma detected: Microsoft Office Product Spawning Windows Shell
Sigma detected: Suspicious Certutil Command
Sigma detected: Windows Shell File Write to Suspicious Folder
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
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)
Yara detected Costura Assembly Loader
Yara detected Snake Keylogger
Yara detected Telegram RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 598053 Sample: Docu1067400023.xlsm Startdate: 28/03/2022 Architecture: WINDOWS Score: 100 85 checkip.dyndns.org 2->85 87 freegeoip.app 2->87 89 checkip.dyndns.com 2->89 105 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->105 107 Multi AV Scanner detection for domain / URL 2->107 109 Found malware configuration 2->109 111 18 other signatures 2->111 10 EXCEL.EXE 53 14 2->10         started        13 img.exe 12 1 2->13         started        16 img.exe 2->16         started        signatures3 process4 file5 75 C:\Users\user\Desktop\~$Docu1067400023.xlsm, data 10->75 dropped 18 cmd.exe 10->18         started        129 Multi AV Scanner detection for dropped file 13->129 131 May check the online IP address of the machine 13->131 133 Injects a PE file into a foreign processes 13->133 20 img.exe 13->20         started        24 cmd.exe 13->24         started        26 cmd.exe 13->26         started        28 cmd.exe 16->28         started        30 cmd.exe 16->30         started        32 img.exe 16->32         started        signatures6 process7 dnsIp8 34 Bdhjsqljaqzfroxhhxrkz.exe.exe 13 4 18->34         started        38 certutil.exe 14 18->38         started        91 checkip.dyndns.org 20->91 93 188.114.96.7, 443, 49177 CLOUDFLARENETUS European Union 20->93 95 2 other IPs or domains 20->95 123 Tries to steal Mail credentials (via file / registry access) 20->123 125 Tries to harvest and steal ftp login credentials 20->125 127 Tries to harvest and steal browser information (history, passwords, etc) 20->127 41 timeout.exe 24->41         started        43 timeout.exe 26->43         started        45 timeout.exe 28->45         started        47 timeout.exe 30->47         started        signatures9 process10 dnsIp11 63 C:\Users\user\AppData\Roaming\docu\img.exe, PE32 34->63 dropped 65 C:\Users\user\...\Zffdkkqxmlmcpdiq.exe, PE32 34->65 dropped 113 Multi AV Scanner detection for dropped file 34->113 115 May check the online IP address of the machine 34->115 117 Injects a PE file into a foreign processes 34->117 49 Zffdkkqxmlmcpdiq.exe 12 2 34->49         started        53 Bdhjsqljaqzfroxhhxrkz.exe.exe 34->53         started        55 cmd.exe 34->55         started        57 cmd.exe 34->57         started        97 18.179.111.240, 49167, 49168, 49169 AMAZON-02US United States 38->97 67 C:\Users\...\Bdhjsqljaqzfroxhhxrkz.exe.exe, PE32 38->67 dropped 69 C:\Users\user\...\Docu1067400023[1].exe, PE32 38->69 dropped 71 C:\Users\...\1C7014DBAEA65B8F807AE1F787862D8F, PE32 38->71 dropped 73 C:\Users\...\1C7014DBAEA65B8F807AE1F787862D8F, data 38->73 dropped 119 System process connects to network (likely due to code injection or exploit) 38->119 121 Drops PE files to the document folder of the user 38->121 file12 signatures13 process14 dnsIp15 77 18.156.82.84, 80 AMAZON-02US United States 49->77 99 Multi AV Scanner detection for dropped file 49->99 101 Machine Learning detection for dropped file 49->101 79 checkip.dyndns.org 53->79 81 checkip.dyndns.com 193.122.130.0, 49171, 49176, 49178 ORACLE-BMC-31898US United States 53->81 83 freegeoip.app 188.114.97.7, 443, 49172, 49179 CLOUDFLARENETUS European Union 53->83 103 Tries to steal Mail credentials (via file / registry access) 53->103 59 timeout.exe 55->59         started        61 timeout.exe 57->61         started        signatures16 process17
Threat name:
Document-Excel.Trojan.Heuristic
Status:
Malicious
First seen:
2022-03-28 07:26:09 UTC
File Type:
Document
Extracted files:
26
AV detection:
12 of 42 (28.57%)
Threat level:
  2/5
Result
Malware family:
snakekeylogger
Score:
  10/10
Tags:
family:snakekeylogger collection keylogger 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 FindShellTrayWindow
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
Program crash
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
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