Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebb78f984cf0fa9d…

MALICIOUS

PDF

91.9 KB Created: 2020-08-13 23:16:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 75f573352dacb2abaf6b6e93b8c1cd9a SHA-1: 4228d9b29a6fbc861ff1c8fecc085d8e18156305 SHA-256: ebb78f984cf0fa9d4006f7af082296b59af94bcbc4a84e1176774370cd1c7b1d
202 Risk Score

Malware Insights

MITRE ATT&CK
T1200 Hardware Add-in T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link and a link farm, indicating a phishing or scam attempt. The presence of a 'download button' lure further supports this. The primary malicious IOC is the redirector URL, which likely leads to a malicious payload or phishing page. No scripts were extracted, limiting the analysis of the exact payload delivery mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=kathi+songs+mp4+hd In PDF document text
    • http://biribid.madeunderthemoon.com/uploads/1/3/0/9/130969573/sedixu.pdfIn PDF document text
    • http://files.reefrovers.com/uploads/1/3/0/8/130874141/4645548.pdfIn PDF document text
    • http://kopomijin.bartletthw.com/uploads/1/3/0/8/130874284/sugewujubupij.pdfIn PDF document text
    • http://files.sreesreementumaharaj.org/uploads/1/3/1/4/131406258/599005.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/1/0439/4339/5483/files/fezulorumufofodurugigas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1596/9688/files/deligujatudefip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0379/7913/files/8802904551.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9907/8299/files/getuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8790/4422/files/25468080560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8161/3987/files/79642683622.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3319/7718/files/21661685443.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5040/0920/files/24521849290.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5032/0540/files/3rd_grade_math_diagnostic_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9386/9223/files/fixududuvasapapevimibuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7035/7653/files/miwavifepipufipokegobizil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3970/9589/files/44056899539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0460/7139/files/ruvaxumutavafibareza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0009/4112/files/35633957229.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e391.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE391 5304 bytes
SHA-256: ce9790ad83bce560c333c8cd62f2b93d5cfcb2ba1fcb0fe19c2e485379d61862
font_01_sfnt_off0000f576.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF576 8144 bytes
SHA-256: 5365cbd47af44c1957a500080a72a2de8227e2f6e6adf564bac3f71c3a30f5c7
font_02_sfnt_off00010baa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BAA 3720 bytes
SHA-256: 6539b129c5cd894636dc8f40f53a156c00c8f46378ab4f137c96d687a1cff6ed
font_03_sfnt_off00011705.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11705 1716 bytes
SHA-256: 7314a8110a688275e79cb4cd5cd058a9f858becaa7f01fde0a687197ddc85302
font_04_sfnt_off00011f90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F90 11792 bytes
SHA-256: 33fe1add60af1000662b48cc4a907b1d4492ae331a2f91f30473876aed655126
font_05_sfnt_off000147b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x147B4 7316 bytes
SHA-256: 056fe315377fc5216ca17e03b680382293c6226764c1bb4c2ddafa05433162b9

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