Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1b71c737548a9b0…

MALICIOUS

PDF

42.6 KB Created: 2020-08-02 18:23:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 887721e664dc99d71128524c41721440 SHA-1: 2dc9f47c46889dfd11875d4b4e57d2faad540193 SHA-256: c1b71c737548a9b0b9f3ca059ade69cb9de1768a2faa4eb92a379e4ecbb05935
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, including one pointing to a known malicious redirector (ttraff.cc). The document body, though heavily obfuscated, contains text suggesting it is a search result for a 'Garmin 530w manual pdf'. This indicates a likely phishing or malware distribution attempt, using a seemingly innocuous document to redirect users to malicious infrastructure. The presence of many external PDF links, some hosted on Shopify, further supports the SEO-based lure tactic.

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=garmin+530w+manual+pdf
    • http://files.monicaghicu.com/uploads/1/3/0/7/130775129/lexutozewapo-lusukalovobo-lesewikatajel.pdf
    • http://files.reignbowco.com/uploads/1/3/1/6/131637562/xajotazaweb_liwitozu_wezetop_semikigikuwa.pdf
    • http://files.jeanstandmeministries.com/uploads/1/3/1/4/131407469/jonesiwugozipodo.pdf
    • https://cdn.shopify.com/s/files/1/0432/8305/4757/files/tizeladur.pdf
    • https://cdn.shopify.com/s/files/1/0431/6151/8231/files/86962245955.pdf
    • https://cdn.shopify.com/s/files/1/0437/1100/4821/files/pugijis.pdf
    • https://cdn.shopify.com/s/files/1/0434/1540/4695/files/duboxinefixebepexanopaw.pdf
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/pimadupegobat.pdf
    • https://cdn.shopify.com/s/files/1/0429/9338/5633/files/nuliza.pdf
    • https://cdn.shopify.com/s/files/1/0429/8535/7463/files/33841779443.pdf
    • https://cdn.shopify.com/s/files/1/0435/9480/9512/files/79298436621.pdf
    • https://cdn.shopify.com/s/files/1/0433/3387/7914/files/sikam.pdf
    • https://cdn.shopify.com/s/files/1/0433/9941/3921/files/20493942181.pdf
    • https://cdn.shopify.com/s/files/1/0431/0892/5602/files/24539642108.pdf
    • https://cdn.shopify.com/s/files/1/0432/1217/7572/files/alien_emoticons_meaning.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_off00005e39.bin
11261c7d6f0f1e8b7303e27e27596da493e411ffdf8fd6284d96111e86539dd4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E39 5560 bytes
font_01_sfnt_off00007126.bin
29594fc6a41b8373ae79541cb562a67fc60ddd5118fd7d944c05b0fed6140741		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7126 13476 bytes

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