Malicious PDF — malware analysis report

Static analysis result for SHA-256 0178b370379ee7dd…

MALICIOUS

PDF

47.7 KB Created: 2020-09-01 01:07:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 29e5e6beea17967077ce542d0f1d30d1 SHA-1: 40030678638a730919aafc17aed6322783bd3e3d SHA-256: 0178b370379ee7ddddba1a5656771e1f151c29a7951d1688587f5cd095dbe908
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.link/wix?keyword=platform+bed+frame+queen+no+box+spring'. This URL is likely part of a phishing or scam campaign designed to lure users into clicking malicious links. The document also contains a large number of embedded links, many pointing to Shopify, which is flagged as a PDF link farm, further indicating a malicious intent to distribute harmful content or redirect users.

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.link/wix?keyword=platform+bed+frame+queen+no+box+spring
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0440/1692/6870/files/xitikotutagijenopebi.pdf
    • https://cdn.shopify.com/s/files/1/0429/9145/2314/files/70229692595.pdf
    • https://cdn.shopify.com/s/files/1/0429/8866/7034/files/kobuke.pdf
    • https://cdn.shopify.com/s/files/1/0434/6878/3768/files/befelu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bugos.pdf
    • https://cdn.shopify.com/s/files/1/0439/1128/2843/files/dolegonarogawugulobejotab.pdf
    • https://cdn.shopify.com/s/files/1/0454/1464/5928/files/24815231440.pdf
    • https://cdn.shopify.com/s/files/1/0443/6285/8652/files/30_green_smoothie_recipes.pdf
    • https://cdn.shopify.com/s/files/1/0429/8738/9087/files/gunuxopimiwi.pdf
    • https://cdn.shopify.com/s/files/1/0429/7634/6266/files/ho_hey_chords.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064e1.bin
c81985a9a70e937243a63817c9c55243216ec1eeccb4b9ab4679e3f12c964700
pdf-font-stream PDF embedded font (sfnt) at offset 0x64E1 5696 bytes
font_01_sfnt_off0000782a.bin
34f8bde6244ac196cec82543eaec8d99e6aa57603a72e1be1374948d553f49a0
pdf-font-stream PDF embedded font (sfnt) at offset 0x782A 10524 bytes
font_02_sfnt_off00009c72.bin
92ca5277a07040a1118e6ffe557fff1b4332eaf15e577e4df2dfa25513d903e2
pdf-font-stream PDF embedded font (sfnt) at offset 0x9C72 16336 bytes