Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e9f46157352b56b…

MALICIOUS

PDF

60.8 KB Created: 2020-12-17 20:12:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 62039e30610c73c864127b9db9dc222b SHA-1: 92460084e990570113caec6eba8d9396967eea4c SHA-256: 6e9f46157352b56b165c305d3cbe7add63c9a43dd56f882750c906ea8fd3b1c7
254 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple heuristics indicating it is a malicious redirector and part of an SEO link farm, designed to drive traffic to potentially harmful sites. The embedded URL `https://traffine.ru/aws?utm_term=ieee+transactions+template+doc` is flagged as a known malicious redirector. The document body, though heavily obfuscated, suggests a lure related to 'Ieee transactions template doc', aligning with phishing or malware distribution tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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 https://traffine.ru/aws?utm_term=ieee+transactions+template+doc In PDF document text
    • https://jakemujilofadam.weebly.com/uploads/1/3/1/3/131380171/bevesow-xerinaxibagifom-suribugazirobu.pdfIn PDF document text
    • https://judikojegewag.weebly.com/uploads/1/3/4/5/134583508/f1d7d9c4fb916f.pdfIn PDF document text
    • https://zosupexaduj.weebly.com/uploads/1/3/0/7/130738593/kafazosigemibisa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/9650ce21-0c95-404c-8ade-2766c5cc16e2/58268041776.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c6fbc2a3-73ca-4365-8f02-81f9af6e1bee/tojesuwelejumiwafuxuj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee564219-c278-4003-a1e1-a2ce5a084f27/the_complete_guide_to_creating_epic.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc35efaaffbf90a66fa355a/t/5fc989e2414f5e352370ff6c/1607043557048/siginekudafajogubalo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3267a38c-077f-420f-bbcc-da3229a0cafe/god_is_able_hillsong_chords.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f0c407c0-fb4d-4f6f-a0b3-6129f7802912/51796643037.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4582a349-ef21-4582-9ee2-7e2f64c06648/idle_stickman_guide.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc394550a2757459bf3c614/t/5fcda1d7662d5e24e0be60e2/1607311831866/business_plan_sample_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/31a56e0f-989c-4d8f-8916-ce7aaff91e16/caracteristicas_de_la_investigacion_aplicada.pdfIn PDF document text
    • https://s3.amazonaws.com/gupojakami/chahat_shahrukh_khan_movie.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
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b00c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB00C 5156 bytes
SHA-256: 2834edefef8171d95278c28f2443659eb4208105f928c8e3f31e721ab6bcfabf
font_01_sfnt_off0000c177.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC177 10472 bytes
SHA-256: ad14ecb6416a337f2b70f01571552187d2809840cfccd97a5f2809c6d669a474