Malicious PDF — malware analysis report

Static analysis result for SHA-256 43df1d6ca0ba410e…

MALICIOUS

PDF

47.5 KB Created: 2020-08-11 15:01:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dfffd23722a724ae7319418efbd8199d SHA-1: 2df7fcb8ad35af7bec610c291fbe31e594f7d372 SHA-256: 43df1d6ca0ba410ead52ec3ba9ba9a9557c57c3c2c65fe4a1d88c51d39a7e38a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains numerous links, including one to a known malicious redirector at `ttraff.cc`. The document body, though heavily obfuscated, contains text suggesting it is a PDF related to religious content, likely a lure to encourage clicks on the malicious link. The ML classifier strongly indicated maliciousness, and the presence of a redirector link points to a phishing or malware distribution attempt.

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=yasin+surah+pdf+arabic In PDF document text
    • http://files.ashlandchristianhealthcenter.org/uploads/1/3/1/8/131856158/8825673.pdfIn PDF document text
    • http://files.mbagames.co/uploads/1/3/0/8/130874627/mabewezupibiluzime.pdfIn PDF document text
    • http://vozuw.mombabymelts.com/uploads/1/3/0/7/130775732/tufovun.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/1/0431/3461/5706/files/52501882344.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7035/6632/files/telugu_bible_file_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6662/9032/files/luwofezulewidezaxugom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8370/1155/files/xevusuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3585/1928/files/99048374695.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7313/2961/files/brick_of_cash_gungeon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3335/4663/files/82366798526.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9975/0560/files/92484558626.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9887/3762/files/xoparo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8976/5279/files/37203310898.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2263/9527/files/legiru.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 5

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64E2 5312 bytes
SHA-256: 1647ff5b4c8a5d622e5e92afd78915cf32d71fbdf72ddf36b1eea1cb3a12254e
font_01_sfnt_off000076d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76D3 10812 bytes
SHA-256: 11da01f8894aa18ac33bba920f9d512b8bdcfb8b4a91e41adfc4c1f59aee75a8
font_02_sfnt_off00009b3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B3D 16324 bytes
SHA-256: 7799cc578944ea27f776c148d498a23748daee036f64c0e32fe755f03f097aa6

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