Malicious PDF — malware analysis report

Static analysis result for SHA-256 96d85be2dbe5a1d6…

MALICIOUS

PDF

49.6 KB Created: 2020-08-02 01:26:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2c707fbe7315e0af6b08bf0a5be3007a SHA-1: 89cd73db6295603477bed9a7ed9e1318fdce1e85 SHA-256: 96d85be2dbe5a1d63ae55d5d146b548450f54a0b0ad483525411efffe761419c
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=pokemon+ultra+sun+route+1'. This indicates the document's primary purpose is to redirect the user to malicious infrastructure. The presence of numerous other links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to obscure the malicious destination. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=pokemon+ultra+sun+route+1
    • http://files.theidealtrip.com/uploads/1/3/1/4/131406448/7284565.pdf
    • http://files.novaenterprisesllc.com/uploads/1/3/0/7/130775174/fe32f09fe4a6.pdf
    • http://files.alittlehand.net/uploads/1/3/0/8/130874012/xurukevufesu.pdf
    • https://cdn.shopify.com/s/files/1/0435/9471/1203/files/the_greens_melville.pdf
    • https://cdn.shopify.com/s/files/1/0433/9515/4069/files/71346744496.pdf
    • https://cdn.shopify.com/s/files/1/0434/5279/2982/files/79916608616.pdf
    • https://cdn.shopify.com/s/files/1/0434/1707/5868/files/42941327877.pdf
    • https://cdn.shopify.com/s/files/1/0432/4022/6984/files/tagelosode.pdf
    • https://cdn.shopify.com/s/files/1/0428/4976/3487/files/dalaxusak.pdf
    • https://cdn.shopify.com/s/files/1/0439/8258/6014/files/19770610522.pdf
    • https://cdn.shopify.com/s/files/1/0429/7680/5018/files/94640034678.pdf
    • https://cdn.shopify.com/s/files/1/0436/7591/0294/files/32848103268.pdf
    • https://cdn.shopify.com/s/files/1/0434/8585/5897/files/15151879788.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87074842841.pdf
    • https://cdn.shopify.com/s/files/1/0428/6221/5324/files/64653639530.pdf
    • https://cdn.shopify.com/s/files/1/0431/1531/5351/files/dnd_5e_warlock_guide.pdf
    • https://cdn.shopify.com/s/files/1/0440/2960/8101/files/jipexusaxeremolenugo.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_off00006607.bin
68b986fcddafbe9a5a0a2ab6a31e128f3f1efbf30ce7dfb4b73bf987a02f50c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6607 9376 bytes
font_01_sfnt_off000085bf.bin
0e3aaa7bee5fd22c073af7a7ba2a098825ee9f5cdecb85a15e234b6f87968bb1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85BF 4948 bytes
font_02_sfnt_off0000967f.bin
85c6a2fb5d28f7ff3007ed4da59e15d9f23145bbad9aa050436c5e747e73fb46		 pdf-font-stream PDF embedded font (sfnt) at offset 0x967F 10300 bytes

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