MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f127b8885114903eac8725e5477e22ec9b73f3190aad5acf248af5871f02bd81. 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: 11


Maldoc score: 13


Intelligence 11 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f127b8885114903eac8725e5477e22ec9b73f3190aad5acf248af5871f02bd81
SHA3-384 hash: b0601b158b2e0693e7e5bba273be856546dafb5d813e4558db81ac1e5056eba41bf7e68ff4fa1c1dca6d2e63e2964ac7
SHA1 hash: d7ac3421e29ea666c4aae2c09fa2f4707a4269aa
MD5 hash: 1674ecbe5b9116407b57813e04d6dd49
humanhash: august-burger-december-yellow
File name:DFL-60110777713.xlsm
Download: download sample
Signature SnakeKeylogger
Create hunting rule
File size:399'162 bytes
First seen:2021-12-27 16:30:00 UTC
Last seen:Never
File type:Excel file xlsm
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 12288:0/O2MoJ2Qxjq06p7C7A3AkNNxGNuoWXXSBh0pLV:0/+oJrxjq06pW7OA4mNVcSB21V
TLSH T1DB841278CF6E0492CB8BA6709249E656E4383C01A48DDBA72D645F0D448F9F4536FECE
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 19 sections in this file using oledump:

Section IDSection sizeSection name
A11100 bytesPROJECT
A2335 bytesPROJECTwm
A3173 bytesVBA/Learn more
A4172 bytesVBA/Sheet10
A5178 bytesVBA/Sheet11
A6169 bytesVBA/Sheet2
A7170 bytesVBA/Sheet3
A8171 bytesVBA/Sheet4
A9173 bytesVBA/Sheet5
A10180 bytesVBA/Sheet6
A11171 bytesVBA/Sheet7
A12177 bytesVBA/Sheet8
A13173 bytesVBA/Sheet9
A14168 bytesVBA/Start
A151065 bytesVBA/ThisWorkbook
A16171 bytesVBA/Workbook
A177 bytesVBA/_VBA_PROJECT
A18452 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
IOCCwpfdwfbqudz.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 :
1
# of downloads :
195
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
DFL-60110777713.xlsm
Verdict:
No threats detected
Analysis date:
2021-12-27 16:37:26 UTC
Tags:
macros macros-on-open
Link:
https://app.any.run/tasks/483febf8-f793-4796-9261-bd0db415d5b2

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
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/216559/
Detection(s):
SecuriteInfo.com.Heur.3303.16145.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.DOCXRSTRGOOD.POWERSHELL.REV.200317.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.CancionDelMariachi.20211020.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.DOCXRSTRGOOD.START_PROC.211028B64.1.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.DOCXRSTRGOOD.ENV_APPDATA.211028B64.8.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
DNS request
Sending a custom TCP request
Creating a window
Сreating synchronization primitives
Creating a file
Creating a process with a hidden window
Launching a process
Running batch commands
Running batch commands by exploiting the app vulnerability
Launching a file downloaded from the Internet
Result
Verdict:
Malicious
File Type:
Excel File with Macro
Link:
https://app.docguard.net/f127b8885114903eac8725e5477e22ec9b73f3190aad5acf248af5871f02bd81/results/dashboard
Document image
Image:
Download PNG
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm cmd macros macros-on-open powershell
Link:
https://www.filescan.io/uploads/61c9ea134ab5c44cbf539c3b/reports/4bcaab9a-1234-4603-ac01-927305fc6244/overview
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/f127b8885114903eac8725e5477e22ec9b73f3190aad5acf248af5871f02bd81
Result
Threat name:
Snake Keylogger
Create hunting rule
Detection:
malicious
Classification:
bank.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/913173
Signature
.NET source code references suspicious native API functions
Allocates memory in foreign processes
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
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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
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 / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected Snake Keylogger
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 545651 Sample: DFL-60110777713.xlsm Startdate: 27/12/2021 Architecture: WINDOWS Score: 100 88 Multi AV Scanner detection for domain / URL 2->88 90 Found malware configuration 2->90 92 Malicious sample detected (through community Yara rule) 2->92 94 12 other signatures 2->94 10 EXCEL.EXE 77 48 2->10         started        14 taskeng.exe 1 2->14         started        process3 file4 54 C:\Users\user\Documents\Cwpfdwfbqudz.bat, ASCII 10->54 dropped 56 C:\Users\user\...\~$DFL-60110777713.xlsm, data 10->56 dropped 58 C:\Users\user\...\DFL-60110777713.xlsm (copy), Microsoft 10->58 dropped 118 Document exploit detected (creates forbidden files) 10->118 16 cmd.exe 10->16         started        19 mork.exe 1 14->19         started        signatures5 process6 signatures7 76 Malicious encrypted Powershell command line found 16->76 78 Encrypted powershell cmdline option found 16->78 21 powershell.exe 12 7 16->21         started        80 Multi AV Scanner detection for dropped file 19->80 82 Machine Learning detection for dropped file 19->82 84 Writes to foreign memory regions 19->84 86 3 other signatures 19->86 26 vbc.exe 19->26         started        28 cmd.exe 19->28         started        30 cmd.exe 19->30         started        32 cmd.exe 19->32         started        process8 dnsIp9 62 3.120.146.69, 49165, 80 AMAZON-02US United States 21->62 52 C:\Users\user\...\Jsiinsfnwnneullmndsm.exe, PE32 21->52 dropped 104 Powershell drops PE file 21->104 34 Jsiinsfnwnneullmndsm.exe 1 21->34         started        64 checkip.dyndns.org 26->64 66 104.21.19.200, 443, 49169 CLOUDFLARENETUS United States 26->66 68 2 other IPs or domains 26->68 106 Tries to steal Mail credentials (via file / registry access) 26->106 108 Tries to harvest and steal ftp login credentials 26->108 110 Tries to harvest and steal browser information (history, passwords, etc) 26->110 37 schtasks.exe 28->37         started        file10 signatures11 process12 signatures13 96 Multi AV Scanner detection for dropped file 34->96 98 Machine Learning detection for dropped file 34->98 100 Writes to foreign memory regions 34->100 102 4 other signatures 34->102 39 vbc.exe 12 34->39         started        43 cmd.exe 1 34->43         started        45 cmd.exe 1 34->45         started        48 cmd.exe 34->48         started        process14 dnsIp15 70 checkip.dyndns.org 39->70 72 checkip.dyndns.com 193.122.6.168, 49166, 49168, 80 ORACLE-BMC-31898US United States 39->72 74 freegeoip.app 172.67.188.154, 443, 49167 CLOUDFLARENETUS United States 39->74 112 May check the online IP address of the machine 39->112 114 Tries to steal Mail credentials (via file / registry access) 39->114 116 Uses schtasks.exe or at.exe to add and modify task schedules 43->116 60 C:\Users\user\AppData\Roaming\mork\mork.exe, PE32 45->60 dropped 50 schtasks.exe 48->50         started        file16 signatures17 process18
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f127b8885114903eac8725e5477e22ec9b73f3190aad5acf248af5871f02bd81/
Threat name:
Document-Word.Trojan.Powdow
Create hunting rule
Status:
Malicious
First seen:
2021-12-27 13:26:02 UTC
File Type:
Document
Extracted files:
178
AV detection:
15 of 28 (53.57%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6et3rccrcsid5lehexsuo7rc5snxh4yzbkwvvtzerl2yohycxwaq._file
Result
Malware family:
snakekeylogger
Create hunting rule
Score:
  10/10
Tags:
family:snakekeylogger collection keylogger macro stealer
Link:
https://tria.ge/reports/211227-tzvr3abdck/
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 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
Drops file in System32 directory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Deletes itself
Loads dropped DLL
Uses the VBS compiler for execution
Blocklisted process makes network request
Downloads MZ/PE file
Executes dropped EXE
Process spawned unexpected child process
Snake Keylogger
Snake Keylogger Payload
Malware Config
Dropper Extraction:
http://3.120.146.69/bgq/DFL-60110777713.exe
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f127b8885114903eac8725e5477e22ec9b73f3190aad5acf248af5871f02bd81

File information

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

Malspam

SnakeKeylogger

Excel file xlsm f127b8885114903eac8725e5477e22ec9b73f3190aad5acf248af5871f02bd81

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/216559/

Comments