Malicious PDF — malware analysis report

Static analysis result for SHA-256 89e3a4299bdcfa76…

MALICIOUS

PDF

79.7 KB Created: 2020-08-12 21:40:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5989159766df4e16f76eb47d607a85b1 SHA-1: a6506a1a23ab0cd84fafd884be60f3accb8c8093 SHA-256: 89e3a4299bdcfa76c086cf0e3ca1f4ec7eb570c5328736c538750578a395a985
120 Risk Score

Malware Insights

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

The PDF contains numerous links, with one heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the redirector. This suggests the document's primary purpose is to redirect users to malicious content, likely for phishing or malware distribution.

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.ru/pify?keyword=arguedas+obras+pdf
    • http://files.approfessionals.us/uploads/1/3/0/7/130775936/2616315.pdf
    • http://files.lauriesdance.com/uploads/1/3/2/6/132681303/65ecc0979b4016.pdf
    • http://files.deweyfleszar.com/uploads/1/3/1/4/131483343/816272.pdf
    • http://files.matthewdjaeger.com/uploads/1/3/1/8/131857631/3304954.pdf
    • http://files.svgreatschools.org/uploads/1/3/2/7/132741375/13388c10e7761.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rasebiv.pdf
    • https://cdn.shopify.com/s/files/1/0433/4010/3845/files/jofejudomibikulawote.pdf
    • https://cdn.shopify.com/s/files/1/0430/7697/6791/files/arboriculture_fruitire_biologique.pdf
    • https://cdn.shopify.com/s/files/1/0440/5267/6773/files/neferawogawajameletibag.pdf
    • https://cdn.shopify.com/s/files/1/0439/5145/6411/files/algebra_2_common_core_textbook_answers.pdf
    • https://cdn.shopify.com/s/files/1/0429/9807/1450/files/tanaxofanomo.pdf
    • https://cdn.shopify.com/s/files/1/0429/9309/0714/files/56939906489.pdf
    • https://cdn.shopify.com/s/files/1/0429/1769/1559/files/58789703328.pdf
    • https://cdn.shopify.com/s/files/1/0430/7111/1330/files/32009552384.pdf
    • https://cdn.shopify.com/s/files/1/0434/5603/7017/files/le_marxisme_rsum.pdf
    • https://cdn.shopify.com/s/files/1/0440/3278/6597/files/is_driver_booster_safe.pdf
    • https://cdn.shopify.com/s/files/1/0434/7179/8424/files/fuzigu.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_off0000f806.bin
220d9ba6f6ee26363ea66043eaa920cce701c80f051ea6968164a5d5be70a7b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF806 5308 bytes
font_01_sfnt_off00010a18.bin
0136a76f8b5f441ea71e3854f1ffcafc6c5d06555eeb04489be59273f298bc04		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10A18 11740 bytes

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