Malicious PDF — malware analysis report

Static analysis result for SHA-256 c790cc95cc1412a6…

MALICIOUS

PDF

62.5 KB Created: 2020-08-26 00:32:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 33069281f90008393ee8d7155b1c083d SHA-1: 7e6d9ef529a02983ef312aaab3c82001d82b3543 SHA-256: c790cc95cc1412a696719e2adc521cc3b5f784b700fe96aca3c05c3bbec8ce31
202 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, including one identified as a malicious redirector. The document body, though heavily obfuscated, contains the text 'Self esteem workbook for youth' and the malicious URL 'https://ttraff.cc/pify?keyword=self+esteem+workbook+for+youth'. This suggests a social engineering lure to trick the user into visiting a malicious site. The presence of a 'download button' heuristic further supports this attack pattern.

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.
  • 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=self+esteem+workbook+for+youth In PDF document text
    • http://files.heels2wheels.tv/uploads/1/3/0/7/130776499/07810b2.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/1/0439/5106/3195/files/ocr_online_converter_to_excel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8035/8811/files/nuresodiki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7870/4536/files/44108379261.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0493/4814/files/99524584320.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7157/6993/files/25801400843.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5106/5243/files/70427255582.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/20597849085.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9814/4932/files/63484577922.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5405/6092/files/wifetesesebodiwiwabo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9813/4941/files/52720754890.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8618/3577/files/30605599831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/0989/2505/files/pocket_oxford_american_dictionary_thesaurus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7675/5349/files/64485915850.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: devereuxazevents.org 3 samples

Related samples 2

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b7d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB7D5 5300 bytes
SHA-256: a338312e453a819b7350663802da3cdd65b40b31fc6f4381d5f979c5eb109b59
font_01_sfnt_off0000c9ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9CE 10316 bytes
SHA-256: 73f930e4f478cff8ddf0eba32cb07317c501c13917fe4d1f08674d211eb260d4

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