Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1fbdc989f59f61c…

MALICIOUS

PDF

243.0 KB Created: 2020-08-25 04:56:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9cc01bce2529c55bf19f2a760b677922 SHA-1: 95578513adda954649d776290398a1e9ae58ecc2 SHA-256: e1fbdc989f59f61c708310a82ff6703642a2ff8c8d50190dd9137e4b607db772
134 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it is a malicious redirector link and uses an advance-fee scam lure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=college+homework+answers+free', which is flagged as a malicious redirector. This suggests the document's primary purpose is to trick the user into visiting a malicious site via a deceptive lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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=college+homework+answers+free In PDF document text
    • http://potolojuf.goodindeedmusic.co.uk/uploads/1/3/2/8/132814930/631680.pdfIn PDF document text
    • http://venijuxuw.mrsoslibrary.com/uploads/1/3/0/7/130739590/pibabinino.pdfIn PDF document text
    • http://tetiw.partifmlive.com/uploads/1/3/0/7/130739994/rulupuzupopegej.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/1/0433/8244/0103/files/wuruvaxaxetogavof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1231/6584/files/lapatetowajaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mefiwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4125/9671/files/kaposi_sarcoma_treatment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/32808714247.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6899/5237/files/24590076080.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8374/2884/files/34354888278.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

Related samples 3

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_off00037dda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x37DDA 5240 bytes
SHA-256: 52d32711f2c408f13108221fcd161b4fafd1b3d354a9f2b44d6448ff730e69a5
font_01_sfnt_off00038f95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x38F95 2244 bytes
SHA-256: e9296cb329d8014c24785926e55ec851626554a00025a383d7cf6d68fae45a5c
font_02_sfnt_off000398ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x398FF 10988 bytes
SHA-256: 5f203d0f95ca399655f5c73203c3e80d08e9742c3b60f7237b7163bd804e6ca3

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