Malicious PDF — malware analysis report

Static analysis result for SHA-256 62b3c69017e79e57…

MALICIOUS

PDF

44.5 KB Created: 2020-08-02 07:58:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b5e7ca178a8fbed890e486fa13c69765 SHA-1: 68114fd06832358070d72587f1f9f209233ced30 SHA-256: 62b3c69017e79e57cb504c189d268ee75f4191accedf0dd594e3b2ebe8f6e5d4
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, with one heuristic specifically identifying it as a PDF link farm. The primary redirector URL, https://ttraff.com/pify?keyword=think+like+a+man+online+free, is flagged as malicious. This suggests the document's purpose is to lure users to malicious sites, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • 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.
  • 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.com/pify?keyword=think+like+a+man+online+free
    • http://files.createleadersnow.com/uploads/1/3/0/9/130969190/mexonidonami_fitugijatadete.pdf
    • http://files.businessbcs.com/uploads/1/3/2/7/132740343/e9c81eaa854.pdf
    • http://files.capitolsteamandclean.com/uploads/1/3/0/7/130776487/93d660033606c.pdf
    • http://files.brookeastonsings.com/uploads/1/3/1/6/131607522/dufos_putotalosaxi_gawibuwu_nopekuja.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/3151/8622/files/11974607123.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/89709194360.pdf
    • https://cdn.shopify.com/s/files/1/0434/6842/3334/files/33816133470.pdf
    • https://cdn.shopify.com/s/files/1/0433/0212/5733/files/73086473349.pdf
    • https://cdn.shopify.com/s/files/1/0432/9996/3044/files/85937237136.pdf
    • https://cdn.shopify.com/s/files/1/0435/9897/1038/files/68747859881.pdf
    • https://cdn.shopify.com/s/files/1/0428/9894/8255/files/lebabulexusodazagi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xokuwunojuvilil.pdf
    • https://cdn.shopify.com/s/files/1/0431/6243/5739/files/kinaju.pdf
    • https://cdn.shopify.com/s/files/1/0430/9165/6864/files/laxemutegekirubuvejotaru.pdf
    • https://cdn.shopify.com/s/files/1/0434/7923/6774/files/cara_download_xvideos.pdf
    • https://cdn.shopify.com/s/files/1/0432/0342/8510/files/55416528631.pdf
    • https://cdn.shopify.com/s/files/1/0429/0094/7103/files/95376386183.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000071c1.bin
601a221a2861c8832c52533e9a96c80cc11d12f863c6b521ebaa1ae127f64327		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71C1 4840 bytes
font_01_sfnt_off0000820b.bin
82c2165dc038e7d165365a417d9f5eab2b5e8d711cbbb36511f036a36030abb8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x820B 10356 bytes

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