Malicious PDF — malware analysis report

Static analysis result for SHA-256 57e899fb6f240c16…

MALICIOUS

PDF

51.3 KB Created: 2020-08-07 19:16:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e7f22272f00a1a6612c47079a82def8b SHA-1: f4e89a3cd87b2bfadd239ba8d654673aab4446da SHA-256: 57e899fb6f240c1679251131ebdd8be30928681b074fba9c5f46ae6604d4b81c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains the URL that leads to this redirector. The primary purpose appears to be directing users to malicious infrastructure, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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://ttraff.ru/pify?keyword=el+par+biomagnetico+isaac+goiz+pdf In PDF document text
    • http://files.cyclingadventures.net/uploads/1/3/2/6/132695689/sulexovabub_bubizelogu_mekodovi_pinuvawenun.pdfIn PDF document text
    • http://files.katrina-wilhelm.com/uploads/1/3/1/4/131453247/tuperobejipenowanim.pdfIn PDF document text
    • http://files.armisteadfarms.com/uploads/1/3/1/8/131856723/a4d8f5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8320/9631/files/tidewitorewiluto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4044/8407/files/ginogajufob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9229/6359/files/hedging_techniques.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9717/0847/files/rawez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1760/9122/files/bipapi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1378/3199/files/ninipomotonegij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9930/6650/files/ayurveda_books_in_bengali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7583/6840/files/kamau_brathwaite_the_arrivants.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5048/3368/files/sufepiwopopek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9780/1375/files/14849618235.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wexidemunuviviradepinitim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5421/0980/files/78904187195.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0195/3952/files/wagepox.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006bda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BDA 5412 bytes
SHA-256: 2f13048c7c8dd6b67a7955ab7633beba57074c6e7c68f51719cfbf2c458671f1
font_01_sfnt_off00007e21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E21 16528 bytes
SHA-256: 81c49b34c5e4c7355fa484759d52d234450edbfd10fbdadcd2598cb7a5693cec
font_02_sfnt_off0000b094.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB094 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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