Malicious PDF — malware analysis report

Static analysis result for SHA-256 44e0cb74cc469631…

MALICIOUS

PDF

37.5 KB Created: 2020-03-20 05:16:13 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 11138f476f64e08c5db7eb009d562d02 SHA-1: 6dc386b131278d54f1457abdfb3212dc10a6c77d SHA-256: 44e0cb74cc469631cb63390af3536001a31a458d84b668655b2738e37f5550e8
104 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which are SEO-optimized and point to other PDF files, indicating a link farm designed to attract traffic. The document body text and embedded URLs suggest a lure related to software downloads, specifically 'Tamil english bible software free download for windows 10'. The presence of a visual download button heuristic further supports the social engineering aspect of this attack. The primary goal appears to be directing users to malicious or compromised websites through these links.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://twistedsugarut.com/uploads/1/3/0/5/130551764/130551764.html#tamil+english+bible+software+free+download+for+windows+10 PDF link annotation
    • http://traxtr.com/uploads/1/3/0/4/130436357/961a65.pdfIn PDF document text
    • http://www.xandysworld.com/uploads/1/3/0/9/130969130/zilikelur-jumelufaxikaki-lavebijuwa-jogadelaliki.pdfIn PDF document text
    • http://doodlebugblessingsgoldendoodles.com/uploads/1/3/0/3/130313022/bixapomodo.pdfIn PDF document text
    • http://goonmud.net/uploads/1/3/0/2/130288798/tifimerekomufemoxif.pdfIn PDF document text
    • http://www.neverdonefiberfarms.com/uploads/1/3/0/6/130620437/6299013.pdfIn PDF document text
    • http://goldheart.us/uploads/1/3/0/5/130548039/5885772.pdfIn PDF document text
    • http://www.paddleboardhouse.com/uploads/1/3/0/7/130739284/sofiwovukaguxob.pdfIn PDF document text
    • http://myafricanloveseries.com/uploads/1/3/0/4/130476687/3442946.pdfIn PDF document text
    • http://jgriceart.net/uploads/1/3/0/5/130588607/xapunubolokag.pdfIn PDF document text
    • http://reachthe1.org/uploads/1/3/0/7/130775404/5322410.pdfIn PDF document text
    • http://twelvecosmeticcompany.com/uploads/1/3/0/8/130874533/1f772e8c32.pdfIn PDF document text
    • http://hellozamora.com/uploads/1/3/0/6/130605083/ca5c71.pdfIn PDF document text
    • http://kaleidoscoperecords.org/uploads/1/3/0/4/130436426/zudawasodinog.pdfIn PDF document text
    • http://www.carbonauto.net/uploads/1/3/0/4/130476548/meterureworax.pdfIn PDF document text
    • http://cpanel.loadmateforboaters.com/uploads/1/3/0/6/130604042/6b24a4738c.pdfIn PDF document text
    • http://www.dampdogbooks.co.uk/uploads/1/3/0/8/130874439/dudage-kixarexasuzij-wunapenemori.pdfIn PDF document text
    • http://mx.ps305.com/uploads/1/3/0/5/130545334/23fcd53ada1.pdfIn PDF document text
    • http://herbotanics.com/uploads/1/3/0/7/130740464/tuxudawe.pdfIn PDF document text
    • http://katieteal.com/uploads/1/3/0/9/130969369/saramafer.pdfIn PDF document text
    • http://www.cortneyharden.com/uploads/1/3/0/6/130620478/5684180.pdfIn PDF document text
    • http://alarmsmeath.com/uploads/1/3/0/6/130621582/6443b1450c.pdfIn PDF document text
    • http://movementactivewear.com/uploads/1/3/0/7/130738830/bopogixasokud.pdfIn PDF document text
    • http://souldecor.org/uploads/1/3/0/8/130814001/2271049.pdfIn PDF document text
    • http://walmsworld.com/uploads/1/3/0/7/130776185/4193595.pdfIn PDF document text
    • http://webdisk.grandviewcresthoa.com/uploads/1/3/1/0/131070710/moporewuma.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text

Related samples 2

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_off00006827.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6827 7608 bytes
SHA-256: a6fdb5df08fe3ff39d59497efbe6a0bd96367ee9ec0fc58adaf3a9e5dd231d25

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