Malicious PDF — malware analysis report

Static analysis result for SHA-256 d596851111f2ebe4…

MALICIOUS

PDF

38.8 KB Created: 2020-08-17 16:47:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54e5381c67b7049ac7e7c988dfa23752 SHA-1: ef070003846d1ac336531981f29c358b5031e671 SHA-256: d596851111f2ebe499e8edb203430d74b113d439845a3c4ef8ae38faffd9b77e
120 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with one identified as a malicious redirector. This suggests the document is part of a link farm or SEO poisoning campaign, aiming to lure users to malicious sites. The primary malicious IOC is the redirector URL, which likely leads to a phishing page or malware download. No scripts were extracted from this sample.

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.com/pify?keyword=accidental+presidency+normal+font
    • http://fubixo.climatefx.org/uploads/1/3/1/8/131856907/kazomawukelem.pdf
    • http://files.mushini.net/uploads/1/3/2/6/132681773/5277905.pdf
    • https://cdn.shopify.com/s/files/1/0434/4617/3852/files/ford_555_backhoe_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/9708/7390/files/72449086077.pdf
    • https://cdn.shopify.com/s/files/1/0447/7770/1533/files/biligifexikirazipiwiwam.pdf
    • https://cdn.shopify.com/s/files/1/0431/1220/2389/files/kemulizowavo.pdf
    • https://cdn.shopify.com/s/files/1/0431/9009/1940/files/tepanowatamupig.pdf
    • https://cdn.shopify.com/s/files/1/0429/6019/1637/files/dotelepezuguwise.pdf
    • https://cdn.shopify.com/s/files/1/0428/7853/3791/files/cogs_caravels_and_galleons.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/73633131036.pdf
    • https://cdn.shopify.com/s/files/1/0437/6281/1034/files/abordagens_psicolgicas.pdf
    • https://cdn.shopify.com/s/files/1/0431/1403/7409/files/new_bollywood_sad_song_mr_jatt.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78649322563.pdf
    • https://cdn.shopify.com/s/files/1/0431/3242/0264/files/wesuwimoxe.pdf
    • https://cdn.shopify.com/s/files/1/0433/0412/4580/files/89407709539.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_off00004ee4.bin
87ab3379dd376b9726a2e670f8393d7cf2f126edfdfbe11d4506ff20fde876ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4EE4 5392 bytes
font_01_sfnt_off00006122.bin
2d2be55fa15a8e4df4024bc942476c39838a396440de6cbc686ac0e5ce44a926		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6122 14480 bytes

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