Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed54080e4e191d71…

MALICIOUS

PDF

42.2 KB Created: 2020-03-31 02:59:38 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 66bd9a3c7f0295b2ea7b084a1a93d76d SHA-1: 5f3ee10e9413ceebba7ba96172e4282ea26472ba SHA-256: ed54080e4e191d71d600beae5df323871349c649cda00a616c0fe73ddd82578c
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of external links, a technique often used for SEO spam or to redirect users to malicious sites. The document body itself is largely unreadable binary data, but it does contain a reference to the URL http://danzaway.co/uploads/1/3/0/3/130313671/130313671.html#que+es+escrupuloso+en+el+trabajo. The heuristic 'PDF_SEO_LINK_FARM' strongly indicates the intent is to create a link farm, likely to manipulate search engine rankings or distribute malware via the linked PDFs.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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://danzaway.co/uploads/1/3/0/3/130313671/130313671.html#que+es+escrupuloso+en+el+trabajo PDF link annotation
    • http://elentrenamientoeuropeo.com/uploads/1/3/0/2/130288381/pebigukufitibiros.pdfIn PDF document text
    • http://lemonade.media/uploads/1/3/0/7/130738784/pubotanufuret.pdfIn PDF document text
    • http://sceniccityroots.com/uploads/1/3/0/5/130546593/sajopenem.pdfIn PDF document text
    • http://polarson.ee/uploads/1/3/0/2/130272470/xoposewonolu.pdfIn PDF document text
    • http://valeriafantozzi.com/uploads/1/3/0/6/130639956/2c399b09e.pdfIn PDF document text
    • http://alyssamtravis.com/uploads/1/3/1/3/131383854/zafirovowar.pdfIn PDF document text
    • http://fivesevencbd.com/uploads/1/3/0/6/130605218/4954532.pdfIn PDF document text
    • http://www.finikaria.com/uploads/1/3/0/8/130813144/vibexijewo-kamudupowoxoto-levewizes.pdfIn PDF document text
    • http://isabellabrain.com/uploads/1/3/0/8/130813904/nifusovefasom.pdfIn PDF document text
    • http://henrywestglproposal.net/uploads/1/3/0/6/130605389/6166450.pdfIn PDF document text
    • http://enhanceproactivehealth.com/uploads/1/3/1/4/131453496/323583.pdfIn PDF document text
    • http://sethltd.com/uploads/1/3/0/2/130288006/35232.pdfIn PDF document text
    • http://mx.summerbeez.com/uploads/1/3/1/0/131070705/0276ffd58a47.pdfIn PDF document text
    • http://jandhbuildingdreams.com/uploads/1/3/1/1/131163712/0176d9938.pdfIn PDF document text
    • http://blinkva.com/uploads/1/3/0/5/130545932/2f78bd.pdfIn PDF document text
    • http://ckmnortheast.com/uploads/1/3/0/9/130969502/3e7cf214888.pdfIn PDF document text
    • http://safemoneyconsulting.com/uploads/1/3/0/6/130620464/lixinojowukanudituse.pdfIn PDF document text
    • http://feelfoodfriendly.com/uploads/1/3/0/7/130776821/fdac58fd.pdfIn PDF document text
    • http://allmywanderings.com/uploads/1/3/0/3/130313123/rubagixu.pdfIn PDF document text
    • http://abelha.co/uploads/1/3/0/4/130489052/fejiguxidakaro-pimopipikap.pdfIn PDF document text
    • http://veganparadiseonline.org/uploads/1/3/1/0/131070631/wekakabosutobo.pdfIn PDF document text
    • http://babywaylon.com/uploads/1/3/0/3/130379062/9125385.pdfIn PDF document text
    • http://lovemakinit.com/uploads/1/3/0/7/130776745/d30ea63cf652.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
🗂 Part of campaign: safemoneyconsulting.com 4 samples

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_off00007af0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AF0 8264 bytes
SHA-256: 3cbe577fa2722ee8e0a7db999719cb55c398e7079211a0dadb553336ec85de50

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