Malicious PDF — malware analysis report

Static analysis result for SHA-256 3884caddfec295e2…

MALICIOUS

PDF

48.8 KB Created: 2020-08-23 10:55:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 99cbb1c11de994d778ab31704ab2af75 SHA-1: bad3fb3176e05b4f6e6c312a6fb271a49c012590 SHA-256: 3884caddfec295e2330e88332d0a0e2ce5cca766ec307051c61525d59f33f8ca
162 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with a critical heuristic firing indicating a link to a known malicious redirector infrastructure. The ML classifier also flagged this PDF with high confidence. The document body appears to be obfuscated or corrupted, but the presence of the URL 'https://ttraff.cc/pify?keyword=hanuman+bhajan++odia' suggests a lure to a malicious site. The extensive link farm, dominated by shopify.com, likely serves to improve SEO for malicious content or to distribute payloads.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=hanuman+bhajan++odia In PDF document text
    • http://files.chrisvadala.com/uploads/1/3/2/6/132682615/0f777d4.pdfIn PDF document text
    • http://files.treschicshopper.com/uploads/1/3/2/3/132303010/3910300.pdfIn PDF document text
    • http://files.actormusicianuk.org/uploads/1/3/0/7/130776647/09dc1e556694d16.pdfIn PDF document text
    • http://files.decadescoffee.ca/uploads/1/3/1/4/131453733/rilibotewovodenaju.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4996/6998/files/39822368205.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3097/7434/files/carnatic_music_lessons_in_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3087/9136/files/fexet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2273/7830/files/audacity_error_while_opening_sound_device.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3759/7591/files/kejebem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7541/9798/files/english_definite_and_indefinite_articles_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6828/3294/files/govorijapa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6568/7717/files/ganinojani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0654/7352/files/33010909015.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5717/6986/files/cat_adventure_games_free.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
🗂 Part of campaign: annahovet.com 4 samples

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000548d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x548D 4936 bytes
SHA-256: b90a383ee8d6f98dfad1e216f84d1ee8053147da7e25dcb67b5cd1c183774b9a
font_01_sfnt_off00006528.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6528 9756 bytes
SHA-256: 1c4e3493b90bee371fe7f4e637953723491e09e0d30a0667d69fa3282fdda48c
font_02_sfnt_off000086c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86C4 4124 bytes
SHA-256: 00316bf3c0729aac93933d144d6336ff3169f151b230b62551e6f215d16a9360
font_03_sfnt_off00009659.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9659 9568 bytes
SHA-256: 329b371366ecce9b3de0d2fa87a044c97a30c0d0300fade2e229044ce19a23a9