Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc5a7a3214967430…

MALICIOUS

PDF

44.4 KB Created: 2020-08-18 14:33:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b62b4b33170837990b0930d4e83dfd78 SHA-1: 2574b339e8967fe47a4f7cfdb6fb8aa64e2857b3 SHA-256: cc5a7a321496743000c6175f8e166efc4cd35683f56df3d143d66944d7600131
150 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=hatteras+fishing+report+surf'. The document body, though heavily obfuscated, contains references to fishing reports and the authoring application, suggesting a lure. The presence of many external PDF links, including benign ones hosted on Shopify, indicates a link farm strategy to obscure the malicious redirector. The primary intent appears to be redirecting the user to malicious infrastructure.

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=hatteras+fishing+report+surf
    • http://vojiwufu.christinakompson.com/uploads/1/3/1/3/131383837/rexun-raxoke-jusezegef.pdf
    • http://files.ultratech-electronics.com/uploads/1/3/2/8/132814980/ginofabas.pdf
    • http://sifisusu.laughingmoondesigns.net/uploads/1/3/0/7/130775934/daleseninin_xijulop_fozabebuvuz.pdf
    • http://files.welldoneexperience.com/uploads/1/3/0/7/130775373/1651420.pdf
    • https://cdn.shopify.com/s/files/1/0437/8152/1565/files/tesco_pet_insurance_claim_form_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/6214/0840/files/53126547189.pdf
    • https://cdn.shopify.com/s/files/1/0431/9726/8128/files/muwuliwisulikokobevakip.pdf
    • https://cdn.shopify.com/s/files/1/0435/9431/7981/files/23795027543.pdf
    • https://cdn.shopify.com/s/files/1/0432/8197/3403/files/lozexebitamat.pdf
    • https://cdn.shopify.com/s/files/1/0448/1266/4989/files/ultimate_marvel_vs_capcom_3_characters_list.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/92904811518.pdf
    • https://cdn.shopify.com/s/files/1/0436/6453/9798/files/xibokaxefubesunif.pdf
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/complete_calvin_and_hobbes_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/4257/0402/files/zogixugadojoxabidakezug.pdf
    • https://cdn.shopify.com/s/files/1/0429/5095/1066/files/12379741626.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rinubigelezegir.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_off000060dd.bin
6628abcfb2734e8ecf843dd41f46fc9504e1801f039afe974f9ddd2ed5be7923
pdf-font-stream PDF embedded font (sfnt) at offset 0x60DD 4976 bytes
font_01_sfnt_off000071bb.bin
3097511af941ed6da57bee27d709d53282ded95e07d9ae3cd8b1374733e77941
pdf-font-stream PDF embedded font (sfnt) at offset 0x71BB 10768 bytes
font_02_sfnt_off0000967d.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0x967D 4324 bytes