MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 44f91a4273c63cb7e0cf0dbad2c21ba5461780c5b821904148d5a4ab2bfdf81a. 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: 15


Intelligence 15 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 44f91a4273c63cb7e0cf0dbad2c21ba5461780c5b821904148d5a4ab2bfdf81a
SHA3-384 hash: 0ae66186a02ecc8205a07e18bd76fb4e0198262a096b90d78b3933e265826be896b922b1fdee1373abdfed196e174ba3
SHA1 hash: 9620418735710a25e8dd3a0267c38c80c63843bd
MD5 hash: d28a4f03a2969a60dda6a00aacc0d18e
humanhash: tennessee-early-helium-oranges
File name:SecuriteInfo.com.Exploit.CVE-2017-11882.123.25886.26681
Download: download sample
Signature SnakeKeylogger
Create hunting rule
File size:110'392 bytes
First seen:2024-07-24 07:16:25 UTC
Last seen:2025-04-30 13:35:12 UTC
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 384:2EMOEGiEgRC4DcHqGW9JcvJIN3MgLPG/z44UtPj3CVj/tkec8kwSKBZ0gPib88Mx:lMOpiEgI4ncvChjLPqEtKj/Cec8CgkAp
TLSH T1B6B3BD99D74F04A5CF55ABBB022B4A4946FCB33EF20545A270AC937033EDD2E49A587C
Reporter SecuriteInfoCom
Tags:CVE-2017-11882 rtf SnakeKeylogger

Intelligence

File Origin
# of uploads :
2
# of downloads :
105
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
https://bazaar.abuse.ch/sample/4278ba95234c631bfa47d69548312641dc554df33a188004330f92bb61327080/
Verdict:
No threats detected
Analysis date:
2024-07-24 07:30:14 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/9cc212df-8924-40c9-af0e-153040a7e182

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Sanesecurity.Malware.28765.RtfHeur.ObjUpd.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Exploit.CVE-2017-11882.123.25886.26681.UNOFFICIAL
Create hunting rule

Sanesecurity.Shelter.Malware.BadRtf.ObjUpd.UNOFFICIAL
Create hunting rule

TwinWave.EvilRTF.ObfusRunAway.20240409.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66a0aa72a97e13ad9de7a07e
Tags:
Discovery Execution Exploit Generic Network Office Stealth Trojan Obfuscated
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Searching for synchronization primitives
Launching a process
Using the Windows Management Instrumentation requests
Creating a window
Sending an HTTP GET request
Creating a file in the %AppData% directory
Сreating synchronization primitives
Launching a service
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Creating a process with a hidden window
Creating a file
DNS request
Connection attempt
Sending a custom TCP request
Connection attempt by exploiting the app vulnerability
Launching a file downloaded from the Internet
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Creating a process from a recently created file
Enabling autorun by creating a file
Result
Verdict:
Malicious
File Type:
RTF File
Link:
https://app.docguard.net/44f91a4273c63cb7e0cf0dbad2c21ba5461780c5b821904148d5a4ab2bfdf81a/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/66a0aa719149fd55f98fad98/reports/e88b3a58-faf9-4572-8f0f-3169ef5c95b8/overview
Verdict:
Malicious
Labled as:
CVE-2017-11882
Link:
https://www.hybrid-analysis.com/sample/44f91a4273c63cb7e0cf0dbad2c21ba5461780c5b821904148d5a4ab2bfdf81a
Result
Verdict:
MALICIOUS
Result
Threat name:
Snake Keylogger
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1479878
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Document exploit detected (process start blacklist hit)
Found malware configuration
Found potential equation exploit (CVE-2017-11882)
Injects a PE file into a foreign processes
Installs new ROOT certificates
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Office drops RTF file
Office equation editor drops PE file
Office equation editor establishes network connection
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Shellcode detected
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: Equation Editor Network Connection
Sigma detected: File Dropped By EQNEDT32EXE
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Sigma detected: Suspicious Binary In User Directory Spawned From Office Application
Sigma detected: Suspicious Microsoft Office Child Process
Tries to detect the country of the analysis system (by using the IP)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Generic Downloader
Yara detected Snake Keylogger
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1479878 Sample: SecuriteInfo.com.Exploit.CV... Startdate: 24/07/2024 Architecture: WINDOWS Score: 100 71 Multi AV Scanner detection for domain / URL 2->71 73 Found malware configuration 2->73 75 Malicious sample detected (through community Yara rule) 2->75 77 24 other signatures 2->77 8 WINWORD.EXE 336 17 2->8         started        11 taskeng.exe 2->11         started        process3 file4 45 C:\Users\...\~WRD0000.tmp:Zone.Identifier, ASCII 8->45 dropped 47 C:\Users\user\Desktop\~WRD0000.tmp, Rich 8->47 dropped 49 SecuriteInfo.com.E...86.26681.rtf (copy), Rich 8->49 dropped 51 ~WRF{D2D26DD9-D07F...0-22E160D43426}.tmp, Composite 8->51 dropped 13 EQNEDT32.EXE 12 8->13         started        18 qYkkfodWzJ.exe 11->18         started        process5 dnsIp6 69 198.46.174.139, 49161, 80 AS-COLOCROSSINGUS United States 13->69 53 C:\Users\user\AppData\Roaming\winiti.exe, PE32 13->53 dropped 55 C:\Users\user\AppData\Local\...\winiti[1].exe, PE32 13->55 dropped 97 Office equation editor establishes network connection 13->97 99 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 13->99 20 winiti.exe 1 10 13->20         started        101 Multi AV Scanner detection for dropped file 18->101 103 Machine Learning detection for dropped file 18->103 105 Adds a directory exclusion to Windows Defender 18->105 107 Injects a PE file into a foreign processes 18->107 24 qYkkfodWzJ.exe 18->24         started        27 powershell.exe 18->27         started        29 schtasks.exe 18->29         started        31 qYkkfodWzJ.exe 18->31         started        file7 signatures8 process9 dnsIp10 41 C:\Users\user\AppData\...\qYkkfodWzJ.exe, PE32 20->41 dropped 43 C:\Users\user\AppData\Local\...\tmp6C0C.tmp, XML 20->43 dropped 83 Multi AV Scanner detection for dropped file 20->83 85 Machine Learning detection for dropped file 20->85 87 Uses schtasks.exe or at.exe to add and modify task schedules 20->87 95 2 other signatures 20->95 33 winiti.exe 12 2 20->33         started        37 powershell.exe 4 20->37         started        39 schtasks.exe 20->39         started        63 reallyfreegeoip.org 24->63 65 checkip.dyndns.org 24->65 67 2 other IPs or domains 24->67 89 Tries to steal Mail credentials (via file / registry access) 24->89 91 Tries to harvest and steal browser information (history, passwords, etc) 24->91 file11 93 Tries to detect the country of the analysis system (by using the IP) 63->93 signatures12 process13 dnsIp14 57 reallyfreegeoip.org 188.114.96.3, 443, 49163, 49164 CLOUDFLARENETUS European Union 33->57 59 checkip.dyndns.org 33->59 61 5 other IPs or domains 33->61 79 Installs new ROOT certificates 33->79 81 Tries to steal Mail credentials (via file / registry access) 33->81 signatures15
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/44f91a4273c63cb7e0cf0dbad2c21ba5461780c5b821904148d5a4ab2bfdf81a
Detection:
cve-2017-11882-shellcode
Create hunting rule
Link:
https://mwdb.cert.pl/sample/44f91a4273c63cb7e0cf0dbad2c21ba5461780c5b821904148d5a4ab2bfdf81a/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2024-07-24 07:17:07 UTC
File Type:
Document
Extracted files:
4
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=it4ruqttyy6lpygpbw5nfqq3uvdbpagfxaqzaqki2wskwk757ana._file
Result
Malware family:
snakekeylogger
Create hunting rule
Score:
  10/10
Tags:
family:snakekeylogger collection credential_access discovery execution keylogger spyware stealer
Link:
https://tria.ge/reports/240724-h4c72axckg/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Launches Equation Editor
Scheduled Task/Job: Scheduled Task
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
System Location Discovery: System Language Discovery
Drops file in Windows directory
Drops file in System32 directory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
Downloads MZ/PE file
Credentials from Password Stores: Credentials from Web Browsers
Snake Keylogger
Snake Keylogger payload
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/e1505458-ac97-4628-84a7-fc27d155d2d0
Malware family:
SnakeKeylogger
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/44f91a4273c6/report/overview.html
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:SUSP_INDICATOR_RTF_MalVer_Objects
Create hunting rule
Author:ditekSHen
Description:Detects RTF documents with non-standard version and embedding one of the object mostly observed in exploit (e.g. CVE-2017-11882) documents.
Reference:https://github.com/ditekshen/detection

File information

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

Web download

SnakeKeylogger

Rich Text Format (RTF) rtf 44f91a4273c63cb7e0cf0dbad2c21ba5461780c5b821904148d5a4ab2bfdf81a

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3065070/
  
Delivery method
Distributed via web download

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