Malicious PDF — malware analysis report

Static analysis result for SHA-256 0879dfc2e41ec93e…

MALICIOUS

PDF

39.4 KB Created: 2020-10-09 11:07:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: b00c07f48643336760cea7ccba3ee939 SHA-1: f13eb695b03cb93783b19732d3440ce15799193f SHA-256: 0879dfc2e41ec93e008c5c9c85917ad5082136704d37bcea05be68490f74a5c5
154 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with several pointing to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The document body text, though garbled, contains keywords related to coupons and shipping, suggesting a lure to trick users into clicking the malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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://gettraff.ru/pify?keyword=isagenix+coupon+code+january+2020+free+shipping In PDF document text
    • http://files.ehsgolf.net/uploads/1/3/1/4/131453019/funafemiteser-vineposavid-zamiderefa.pdfIn PDF document text
    • http://dalaxale.mrsbalisalisa.com/uploads/1/3/0/8/130873995/714e7af74d.pdfIn PDF document text
    • http://kanajud.christepiscopalschooldrama.org/uploads/1/3/2/7/132711981/8553202.pdfIn PDF document text
    • http://notajufol.jerseygreenroomclub.com/uploads/1/3/1/4/131438539/motekarej.pdfIn PDF document text
    • http://vusiv.steelbridgecoffee.com/uploads/1/3/1/0/131070054/pufira.pdfIn PDF document text
    • http://dutosos.nliaustralia.com/uploads/1/3/2/7/132740351/mosal.pdfIn PDF document text
    • http://sosef.millers-crossing-design.com/uploads/1/3/0/8/130814010/matuveriro.pdfIn PDF document text
    • http://wejire.possumtrotchristiancamp.org/uploads/1/3/2/6/132681218/733246.pdfIn PDF document text
    • http://vinumo.mcbaronfootball.com/uploads/1/3/1/3/131380160/fobadabe_beloxavug_buwipebotijon.pdfIn PDF document text
    • http://dosozogaz.goldaes.com/uploads/1/3/1/3/131378950/606088.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0493/2186/9471/files/jexenun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6563/7019/files/pavojig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3439/5295/files/skyrim_xbox_one_graphics_mod_load_order.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5095/6960/files/wpial_football_scores_week_4.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_off0000594d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x594D 5844 bytes
SHA-256: 4744c65004683d27065a3c0eceb1f7171cb39df9c08a3862edff168aff00e973
font_01_sfnt_off00006d46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D46 10436 bytes
SHA-256: 4b9498622add8daaf4a6be9808a496233a77b5d7ee9ee545fe1a37cbd332c857

Open this report in the interactive analyzer, or submit your own file for analysis.