Malicious PDF — malware analysis report

Static analysis result for SHA-256 cac89a71629c042a…

MALICIOUS

PDF

43.5 KB Created: 2020-08-14 12:53:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 500ef5cf15f443549136e48d77644589 SHA-1: 482938a2f9eccfda0f752844d03fc5438032ea80 SHA-256: cac89a71629c042a0ab9116b2ef0c20690beac42061d0396d4da81cafb65fdde
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a link to a known malicious redirector. The primary malicious URL identified is 'https://ttraff.cc/pify?keyword=best+android+spy+apps+cheating+spouse', which is likely used to redirect users to malicious content or scams. The document body, though heavily obfuscated, contains this URL, reinforcing its role in the attack. The presence of numerous other links, many hosted on Shopify, suggests a link farm designed to obscure the malicious destination.

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.cc/pify?keyword=best+android+spy+apps+cheating+spouse
    • http://vuvodotu.alzheimersdiseasethebrand.com/uploads/1/3/2/6/132696030/2467553.pdf
    • http://files.dialoguecoffeehouse.com/uploads/1/3/2/7/132740682/27f50828315.pdf
    • http://goduz.oikstrategy.com/uploads/1/3/1/4/131453133/8469737.pdf
    • http://files.virginiashowmasterscircuit.com/uploads/1/3/0/7/130775970/2702494.pdf
    • http://noximerer.ims-spi.com/uploads/1/3/1/4/131406390/9709751.pdf
    • https://cdn.shopify.com/s/files/1/0431/7344/5788/files/27644931376.pdf
    • https://cdn.shopify.com/s/files/1/0437/9531/6896/files/group_incentive_plans.pdf
    • https://cdn.shopify.com/s/files/1/0431/4277/4938/files/exercices_corrigs_automatisme_industriel.pdf
    • https://cdn.shopify.com/s/files/1/0433/8909/1998/files/free_math_worksheets_for_grade_4.pdf
    • https://cdn.shopify.com/s/files/1/0430/5335/1066/files/vumusuzenefit.pdf
    • https://cdn.shopify.com/s/files/1/0432/5995/3312/files/free_archeology_books.pdf
    • https://cdn.shopify.com/s/files/1/0434/9162/3074/files/model_attestation_de_travail_word_gratuit.pdf
    • https://cdn.shopify.com/s/files/1/0437/8437/2386/files/sample_variance_calculator.pdf
    • https://cdn.shopify.com/s/files/1/0432/8125/2507/files/ludowemesixapidasoded.pdf
    • https://cdn.shopify.com/s/files/1/0432/9173/8277/files/petofikimawivudefexifevu.pdf
    • https://cdn.shopify.com/s/files/1/0432/8049/8852/files/romigaxaxovutin.pdf
    • https://cdn.shopify.com/s/files/1/0428/3210/1543/files/najazobebarikanu.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_off00006c9e.bin
f389077aef3bcc8b0de1a48bb0ab102c20b655d0c06ea3144feec8dcea62c098
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C9E 5452 bytes
font_01_sfnt_off00007f27.bin
174224759b92ac6f76cba5e328ddf538c28314030ff718ea04041f5cc9cf6ffe
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F27 9888 bytes