Malicious PDF — malware analysis report

Static analysis result for SHA-256 32dc2638ddfd1808…

MALICIOUS

PDF

43.2 KB Created: 2020-08-09 04:39:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b016b06960bda01d423a9d1364bdda69 SHA-1: 65efa7bc4cad938f5bed0df92748d4c95fccf79b SHA-256: 32dc2638ddfd1808f4b3f8946ef8d50940821ab92c0b7aea21644f876bebd554
150 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a primary link to 'https://ttraff.com/pify?keyword=cattle+farming+business+plan+pdf', which is identified as a malicious redirector. This suggests the document's purpose is to lure users to malicious infrastructure, likely for subsequent malware delivery or phishing. The ML classifier strongly supports the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=cattle+farming+business+plan+pdf
    • http://files.drliannebrown.com/uploads/1/3/0/7/130776639/3f9240.pdf
    • http://files.hombomtoys.net/uploads/1/3/1/3/131383949/joxixurifuweval_tofofenidofe_refoda_fakew.pdf
    • http://files.annapicklesharvey.com/uploads/1/3/1/4/131438111/dinizagopizotu.pdf
    • http://tisosogo.renegadegreens.com/uploads/1/3/0/8/130814328/1474297.pdf
    • http://files.brennencooper.com/uploads/1/3/1/3/131380870/deselifimodu.pdf
    • https://cdn.shopify.com/s/files/1/0429/6943/2230/files/lodidabeladejepanawosa.pdf
    • https://cdn.shopify.com/s/files/1/0437/4583/7208/files/vuvovixepotesukimamo.pdf
    • https://cdn.shopify.com/s/files/1/0434/7219/1641/files/14293979342.pdf
    • https://cdn.shopify.com/s/files/1/0433/2729/1544/files/41873363729.pdf
    • https://cdn.shopify.com/s/files/1/0437/8161/9861/files/andhra_pradesh_history_in_telugu.pdf
    • https://cdn.shopify.com/s/files/1/0434/0308/3928/files/21099509406.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78394199391.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87960197539.pdf
    • https://cdn.shopify.com/s/files/1/0433/7932/7141/files/sudo_without_password.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81256704061.pdf
    • https://cdn.shopify.com/s/files/1/0432/1850/1799/files/briggs_and_stratton_273521.pdf
    • https://cdn.shopify.com/s/files/1/0440/6122/9206/files/48822925449.pdf
    • https://cdn.shopify.com/s/files/1/0431/6564/7002/files/gefenuralizarisubimeva.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_off00006aea.bin
62a8feb1889fdbe22e99b4ebe5351fe20645638313e9b937d6f90490a8e9ed97
pdf-font-stream PDF embedded font (sfnt) at offset 0x6AEA 5404 bytes
font_01_sfnt_off00007d2e.bin
7a32f8721a7826ca4c44c1bde6d79c151fbab1d3e0d4baf1806b53445fd0d5b0
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D2E 10076 bytes