Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b3399a117b754d2…

MALICIOUS

PDF

42.3 KB Authoring application: Inkscape First seen: 2020-09-24
MD5: ccbf257761120b612a86996dc104170e SHA-1: 6637cd756489802e472517dbb63088a2c6a2d2bd SHA-256: 2b3399a117b754d2ce7175b590feb636e4b4dedd3653f67f156f63d55509de54
192 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by multiple heuristics, including a critical alert for a link farm containing numerous external PDF links. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall' further supports a malicious intent. The embedded URLs likely lead to phishing sites or further malware downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://995silver.com/uploads/1/3/0/3/130379380/1221662.pdf In PDF document text
    • http://my365tutors.net/uploads/1/3/0/6/130605040/damojubezud.pdfIn PDF document text
    • http://www.hawaiigetawayweddings.com/uploads/1/3/0/3/130312920/421f6ce3619ee.pdfIn PDF document text
    • http://www.register.translantau.com/uploads/1/3/0/6/130640128/1bbbae2b.pdfIn PDF document text
    • http://www.alexavakimball.com/uploads/1/3/0/3/130313728/babd682c889741.pdfIn PDF document text
    • http://techconnectwest.net/uploads/1/3/0/4/130483847/wewomeraxezamatife.pdfIn PDF document text
    • http://hostmaster.heinrichtoh.com/uploads/1/3/0/8/130813790/4788631.pdfIn PDF document text
    • http://colombus.store/uploads/1/3/0/7/130739340/sabiwufemobosabad.pdfIn PDF document text
    • http://semesterinfo.eu/uploads/1/3/0/2/130291707/9072133.pdfIn PDF document text
    • http://homeownerenergyexchange.com/uploads/1/3/0/3/130324451/dopibuwabekugig-bulivin.pdfIn PDF document text
    • http://annafriendfilm.com/uploads/1/3/0/5/130588468/vibasusukas-rimefafopa-xopefetawufi-wixakam.pdfIn PDF document text
    • http://magnoliastravelandtouradventures.voyagerwebsites.com/uploads/1/3/0/6/130603944/130603944.html#alabama+abortion+law+2019+documentIn PDF document text

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004e16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E16 8408 bytes
SHA-256: 83bf0c78fa0e18cd221b71a2373baac724beba1b4270c2f2d8a910d8331553bd

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