Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9053bb3b48e067e…

MALICIOUS

PDF

46.3 KB Created: 2020-08-25 03:20:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 41f89636e551a7643b12fc17dd91c22c SHA-1: 2dc0656dc25581fec9b4135c5599b9a442275caf SHA-256: d9053bb3b48e067eeb39be762121980be5e44665d716fd99943e3ecb308aebed
234 Risk Score

Malware Insights

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

The PDF file contains a lure related to a 'butterfly life cycle lesson plan' and embeds multiple links. One of these links, https://ttraff.com/pify?keyword=butterfly+life+cycle+lesson+plan+pdf, is identified as a malicious redirector. The document also exhibits characteristics of a remote-support tool lure, suggesting an attempt to trick the user into installing or connecting to such software. The presence of a link farm further indicates malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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.com/pify?keyword=butterfly+life+cycle+lesson+plan+pdf In PDF document text
    • http://files.ssjo.org/uploads/1/3/1/3/131381003/6093852.pdfIn PDF document text
    • http://mutubojos.dublintaiko.com/uploads/1/3/0/7/130776791/modamafukewupel_jorurijosum_nolizajed.pdfIn PDF document text
    • http://kixazuwiz.soheilaazadi.com/uploads/1/3/0/8/130814328/1986612.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/1/0438/2123/6384/files/6802313464.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/koliragadanumuzes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7921/2959/files/samsung_wireless_lan_adapter_wis09abgn.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8032/7070/files/14738069090.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6308/3162/files/30017494745.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5921/6537/files/class_2_amalgam_cavity_preparation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8918/9272/files/11721486645.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7926/8520/files/37202092289.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0993/1426/files/kodemakoxorepagip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3296/0409/files/asia_political_map_printable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3951/4006/files/vegetables_companion_planting_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2925/8649/files/diddy_kong_racing_cheats.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7781/1867/files/breaking_news_live_movie_video_song.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_off00007667.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7667 5300 bytes
SHA-256: 104dec931e3e94c62d343ed9c897ad1579d3005e4e611a4c5217755d912ca357
font_01_sfnt_off00008885.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8885 10800 bytes
SHA-256: c50c88f23b07a84799f764e6f2cfe854f16739963918a8b58744740859796c18