Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee7923346be4d34a…

MALICIOUS

PDF

149.3 KB Created: 2020-08-11 18:55:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9c97f052d1715a4e70447f518cf5e4ea SHA-1: ee786692bf4f4147da96d54fe183eb8764c43690 SHA-256: ee7923346be4d34a6c7ad9d268a13dddbfac8c61e6cd38ac5fc09cf36f27b0ba
134 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating a malicious redirector link. The embedded URL, 'https://ttraff.cc/pify?keyword=geotechnical+engineering+laboratory+manual+pdf', is directly linked to malicious infrastructure. The document body, though heavily obfuscated, also contains this URL, reinforcing the phishing pretext. The ML classifier also flagged this PDF with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • 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.
  • 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=geotechnical+engineering+laboratory+manual+pdf In PDF document text
    • http://files.thesonsetmefree.com/uploads/1/3/2/6/132696174/wasejodudulog_dixowobati_fejorerokogow_nibon.pdfIn PDF document text
    • http://files.jessicaharperyoga.com/uploads/1/3/2/6/132695828/tewekulu-kukane.pdfIn PDF document text
    • http://rojipakuf.triplethreatns.com/uploads/1/3/0/7/130738614/1767825.pdfIn PDF document text
    • http://nazox.therefugelapeer.org/uploads/1/3/1/3/131380600/xodabedo_rowimikuze_zijomurenixejex.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.thdl.org/http://www.thdl.org/TibetanIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5059/8562/files/jimonibut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7778/6018/files/cisco_ccna_lab_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3491/8558/files/form_4_mathematics_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0878/5562/files/18494809358.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9227/9445/files/56853038353.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/16086567002.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1281/6034/files/revosivege.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4442/1282/files/pisipesegodujed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96626323422.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1361/1421/files/sepisetulopetuzepu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9070/6589/files/188044460.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7356/8919/files/felonan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4103/0293/files/fewugomusixupajuputa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9534/9661/files/sevilla_albeniz_piano.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlTibetanIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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_off0001a960.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A960 8488 bytes
SHA-256: 1c106c103fc6ae3144487e6ebc0bd3fd7d0881128e89c1092f7a4e2409b25050
font_01_sfnt_off0001c002.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C002 8272 bytes
SHA-256: 01206dc1becbd2be18ae818ea11c50a3f4f59bbaa9a9747fdc50e82fb98ba13f
font_02_sfnt_off0001da48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1DA48 5664 bytes
SHA-256: 573f8cc8923e691ef5a62d6d369de575f02831d39c79f9201f2d1e75c7660743
font_03_sfnt_off0001ed72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1ED72 8976 bytes
SHA-256: e6ef1070fe110e09fdf6bef938d0dd901ba4047105bbf626610727e05d38d2aa
font_04_sfnt_off0001ff33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1FF33 16088 bytes
SHA-256: c567e299ca22cc881bef072a01b4a68ec89ecead2cdc14f54e48924ab652f04f
font_05_sfnt_off00023139.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23139 16112 bytes
SHA-256: 116e1aefc1bdc9fdbdc8bc4ca32ed8fc2a9096b6ae60b76e258fcc2d5524df3d

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