Malicious PDF — malware analysis report

Static analysis result for SHA-256 aba7e1366901f87e…

MALICIOUS

PDF

39.4 KB Created: 2020-08-21 18:03:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fbacf5eff0c558530a90346cb22647d0 SHA-1: f917f4465433b93fd6110f0f9beffb95bc6d6f2d SHA-256: aba7e1366901f87e721f77f90c516d25853662b3eabb7f98b7b51ff26adf28d6
194 Risk Score

Malware Insights

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

The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure. Additionally, it contains a large number of external links, characteristic of a link farm. The primary malicious URL identified is https://ttraff.ru/pify?keyword=ansible+tower+3.+3, which likely serves as a gateway to further malicious content. The document body contains obfuscated text and embedded URLs, reinforcing the malicious intent.

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=ansible+tower+3.+3 In PDF document text
    • http://files.facademarketing.com/uploads/1/3/0/8/130814205/783c1a628281446.pdfIn PDF document text
    • http://mupaf.hftrolley.org/uploads/1/3/2/8/132815154/ad724c019a.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/1/0430/7773/0464/files/89244552886.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3363/9584/files/jaxilafijinodasarex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7193/0519/files/9730395427.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0372/9304/files/forma_de_contagio_giardia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5757/8138/files/anisocoria_trauma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5844/3941/files/bunker_building.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8349/7621/files/anatomia_y_fisiologia_del_intestino_grueso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0707/4723/files/buku_panduan_belajar_bahasa_mandarin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2348/2525/files/angle_bisector_practice.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7789/2251/files/18154926366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9322/1783/files/from_steam_workshop_without_game_2018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6820/3942/files/bubererajuno.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 3

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005df8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DF8 4884 bytes
SHA-256: c3d447f81aeb927e6199c5a4598de7ec21d8d1ec1bd12b5723add1ca295b3a2a
font_01_sfnt_off00006eb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EB3 10096 bytes
SHA-256: 249eb455a937d01f72a3ccb6c010993292dcebc32acefa4596c6a8b2048fa5bf

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