Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c2b1edb8cc6d31b…

MALICIOUS

PDF

44.3 KB Created: 2020-08-24 14:33:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6871d51a9fbe65e15586fef742a628f1 SHA-1: d07a6d8d0e00cd1f2ccb8dce3f6426b11af47048 SHA-256: 9c2b1edb8cc6d31b4f31afa54d5a4e248e6be4a708d0ea1fa1d449d7b0efdaf3
234 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, a technique often used to lure users to malicious websites. One of the embedded URLs, 'https://ttraff.cc/pify?keyword=gospel+music+worship+songs', is flagged as a known malicious redirector. The document body contains garbled text and what appears to be metadata, but the primary threat comes from the link farm designed to direct users to potentially harmful content. No scripts were extracted from this sample.

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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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=gospel+music+worship+songs In PDF document text
    • http://files.mindbodyconnectionmassagepilates.com/uploads/1/3/0/7/130739062/rikudizisevuwi-sisipikiwevavif-zuwotagininize.pdfIn PDF document text
    • http://dodomezas.davisonavenuepta.com/uploads/1/3/1/3/131384169/sepeso.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/1/0437/8984/4631/files/fmab_op_3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9415/5170/files/left_view_of_binary_tree.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/6451/6757/files/freepik_template_ppt.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2390/8520/files/lake_amador_fishing_report_november_2018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/98029452840.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/9813/9813/files/zen_alarm_clock_sound.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4253/7629/files/71456658973.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9635/7530/files/interactive_spatial_data_analysis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6176/2455/files/16449443408.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2625/9876/files/91188514084.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5752/1574/files/27832969425.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8195/7537/files/celtic_hymns_violin_sheet_music.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_off00006fe3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FE3 5260 bytes
SHA-256: 11a4d319531c903f3722c6dcd8e4cae9b13d5004479577a740edd6f90766270b
font_01_sfnt_off000081be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81BE 10244 bytes
SHA-256: 651d0ec18fd85175dcbab72ae716533d32204bdf1462f239b6804451771dbccb