Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc45997eff1b4926…

MALICIOUS

PDF

45.6 KB Created: 2020-08-09 06:30:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 87ad6a75415d8200e79b657baab2abf5 SHA-1: 2745b878746d2f7eb563c20d933d7c2f7766c78c SHA-256: bc45997eff1b49262ae31258179d2fb4a040761e2fb1bb761b0b196f55469e19
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on ttraff.cc. This infrastructure is known to redirect users to malicious sites. The document body, though heavily obfuscated, contains the URL that triggers the redirection, indicating a social engineering lure to entice users to click on the malicious link. The PDF also contains numerous benign-looking links hosted on shopify.com, likely to blend in with legitimate content.

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.cc/pify?keyword=protection+of+domestic+violence+act+2020+pdf In PDF document text
    • http://rofilipe.everygreatreason.org/uploads/1/3/1/3/131380213/lolefori.pdfIn PDF document text
    • http://files.mistresskami.com/uploads/1/3/1/3/131398171/8145219.pdfIn PDF document text
    • http://pazowuka.mommomnomnom.com/uploads/1/3/2/3/132303382/golute.pdfIn PDF document text
    • http://gakesigum.bfstrings.com/uploads/1/3/1/6/131606289/razupo.pdfIn PDF document text
    • http://files.rockfishgrovefwbchurch.com/uploads/1/3/1/1/131164386/4647d.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/1/0429/9322/1783/files/getulomuzukutewasomod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1540/4702/files/welch_t_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0293/6992/files/uttar_pradesh_census_2020_data.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5148/2278/files/jilevageganusugotufi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5040/1945/files/nawufidoti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1723/8685/files/dean_vaughn_medical_terminology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6249/2310/files/bankruptcy_act_malaysia_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1347/1384/files/51213348410.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7789/2264/files/oxford_discover_2_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4294/6728/files/selekuwaveferisu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0778/6654/files/historia_original_de_la_bella_durmiente.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gobobuxewinunegurugita.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4571/5109/files/cracking_the_sat_chemistry_subject_test_16th_edition.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_off000067d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67D1 5424 bytes
SHA-256: 1fa3b77fb6e5bac7e31273bc13a3adb0c88b5e18228c2895dbd5525da27dfe95
font_01_sfnt_off00007a25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A25 9536 bytes
SHA-256: b6959a844b5ea84b5f279fb3a868090275355e22e72366c2dfbf27ba0fd4dbaa
font_02_sfnt_off00009ae1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AE1 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3