Malicious PDF — malware analysis report

Static analysis result for SHA-256 4aabe436ddfc133f…

MALICIOUS

PDF

39.6 KB Created: 2020-08-27 22:18:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 46c17bd3980d2e0033bbf53d153d27b9 SHA-1: 42a54c201c489c2d7fc1436a4d08dd1fbe1c0c64 SHA-256: 4aabe436ddfc133fc6d577d6b5952b1b0baa3de38a537283a2dcf1bda30af697
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a primary link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.link/pify?keyword=rocketdock+win+8+indir', which is a strong indicator of a phishing or malware delivery attempt. The presence of numerous other PDF links suggests an attempt to distribute malicious content or engage in SEO manipulation for traffic.

Heuristics 3

  • 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.
  • 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/pify?keyword=rocketdock+win+8+indir
    • http://files.girlsstem.ca/uploads/1/3/2/8/132814589/8430947.pdf
    • http://komebosov.wellnesslifestylelounge.com/uploads/1/3/2/3/132303195/xiduvaf.pdf
    • http://files.bisonsbikes.com/uploads/1/3/1/0/131070792/wigufob.pdf
    • http://files.shareourlove2017.ca/uploads/1/3/1/4/131406659/8703076.pdf
    • http://files.startupinfluencer.com/uploads/1/3/1/4/131409309/0dfbc16c.pdf
    • https://cdn.shopify.com/s/files/1/0461/9495/0295/files/46808724683.pdf
    • https://cdn.shopify.com/s/files/1/0433/5498/0507/files/merriam_webster_apk_uptodown.pdf
    • https://cdn.shopify.com/s/files/1/0431/9235/2932/files/pufoz.pdf
    • https://cdn.shopify.com/s/files/1/0432/6372/1637/files/fuwowinevamevemejubaxexox.pdf
    • https://cdn.shopify.com/s/files/1/0433/8925/5847/files/91220569355.pdf
    • https://cdn.shopify.com/s/files/1/0432/5657/8212/files/why_does_my_mouse_keep_disconnecting.pdf
    • https://cdn.shopify.com/s/files/1/0429/5963/4591/files/nosobusepepufekutuw.pdf
    • https://cdn.shopify.com/s/files/1/0433/5720/8731/files/69804076383.pdf
    • https://cdn.shopify.com/s/files/1/0430/7176/6690/files/toxosofiguzodo.pdf
    • https://cdn.shopify.com/s/files/1/0435/5473/4235/files/descriptive_writing_prompts_worksheets.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005dd9.bin
ae71545eefd6ed4d58579cd5065290f29857ecd154f23050e664c50f48fbc44b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DD9 4872 bytes
font_01_sfnt_off00006e87.bin
638485ea4c892562b52018042cfdf3bc39f154383d1dc7e10f852ae5d4c68bb2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E87 10356 bytes

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