Malicious PDF — malware analysis report

Static analysis result for SHA-256 80565b0699ec83b1…

MALICIOUS

PDF

46.8 KB Created: 2020-08-26 17:04:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0dbe9a59675ad55a43b399b3dbdf8045 SHA-1: fa3114d8150a404d063efb5bb32aabcfb3fa839f SHA-256: 80565b0699ec83b1fa9e835500bf08f8d3c4dc26efbf53d04de52b307965661a
128 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one critical heuristic identifying a link to known malicious redirector infrastructure at 'ttraff.com'. Another heuristic indicates a PDF link farm, suggesting an attempt to distribute or obscure malicious content. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing the lure. No scripts were extracted, but the presence of malicious redirector links and a link farm strongly suggests a phishing or malware distribution attempt.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=bkav+pro+android+crack
    • http://files.achsmembers.com/uploads/1/3/0/9/130969254/9359418b149.pdf
    • http://files.guelpherrands.com/uploads/1/3/1/3/131379382/wudasigoxevebamaxiz.pdf
    • https://cdn.shopify.com/s/files/1/0431/6495/8879/files/pewejuromom.pdf
    • https://cdn.shopify.com/s/files/1/0439/2147/3691/files/jumakizuwaloxodo.pdf
    • https://cdn.shopify.com/s/files/1/0432/0660/7012/files/lexudapumuxoparamojekegeb.pdf
    • https://cdn.shopify.com/s/files/1/0437/0821/9547/files/buxiwokusimuzo.pdf
    • https://cdn.shopify.com/s/files/1/0463/2176/2461/files/sheetrock_lift_menards.pdf
    • https://cdn.shopify.com/s/files/1/0431/8402/9854/files/43760725604.pdf
    • https://cdn.shopify.com/s/files/1/0439/8671/4782/files/xbox_one_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/7577/1304/files/cambridge_english_first_for_schools_practice_tests.pdf
    • https://cdn.shopify.com/s/files/1/0433/0084/7781/files/31389303613.pdf
    • https://cdn.shopify.com/s/files/1/0437/0720/3739/files/revifixoker.pdf
    • https://cdn.shopify.com/s/files/1/0429/1641/3607/files/segifesaz.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005bb1.bin
ec3084ef676dbf34ab5e0c6d23a37d546f71d0fc1369399ee6670672f3024d60
pdf-font-stream PDF embedded font (sfnt) at offset 0x5BB1 5028 bytes
font_01_sfnt_off00006cdc.bin
e4616dcbb21f5f91775275a78976928c31ca1bed63f16c427cfc4cfc0046e2e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x6CDC 17084 bytes
font_02_sfnt_off00009918.bin
7f10b5217708b7aced76a9c7cd02a51188d2af7235ea23585d094f6560042d0f
pdf-font-stream PDF embedded font (sfnt) at offset 0x9918 16248 bytes