Malicious PDF — malware analysis report

Static analysis result for SHA-256 31e60678df08dca5…

MALICIOUS

PDF

48.0 KB Created: 2020-08-12 07:22:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 91f692c91789509a3676833e4c28016d SHA-1: bf77ca4a3f3626cf85503bd49bcb24ac36d339a7 SHA-256: 31e60678df08dca50267f5badd941dfbaf5fbb216565c63bc5ec8269212c4abc
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the text 'national interest theory international relations pdf' and the malicious URL, suggesting a lure to a fake academic paper. The presence of a malicious redirector indicates an attempt to lead the user to a malicious site.

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.com/pify?keyword=national+interest+theory+international+relations+pdf In PDF document text
    • http://josolalov.laurelheidtman.com/uploads/1/3/1/4/131407263/munafilezo_jumagen_gosix.pdfIn PDF document text
    • http://files.papayasplace.com/uploads/1/3/0/7/130775071/karejipejatexi_pigepuvuk.pdfIn PDF document text
    • http://files.ancienthand.net/uploads/1/3/0/9/130969154/720931.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/1/0431/3828/5734/files/pezukijofugenag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0745/1029/files/23235559559.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/4210/6518/files/statement_of_facts_reg_256.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2010/8455/files/beckman_coulter_au480_test_menu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65233410578.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6450/0122/files/4e_player_s_handbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2919/1066/files/consonant_blends_activities.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6248/5407/files/rarekeboxopaxususowa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5232/7324/files/wonders_of_the_modern_world.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2512/1959/files/10_day_forecast_north_myrtle_beach.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6593/3985/files/49535501225.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7426/4993/files/19352530599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2301/5841/files/can_t_stop_the_feeling_easy_piano_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6658/9335/files/autocad_2016_for_beginners.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F27 4988 bytes
SHA-256: 60632e18929969c2bafc89d4dd44d4f38775eaa984253cf7a2fc7ef342515896
font_01_sfnt_off00008015.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8015 10728 bytes
SHA-256: 5addd19a792557ad160c2ae2c61ba8cb35313fdf2a5cd88e9a9f79fc0afb233a
font_02_sfnt_off0000a404.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA404 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e