Malicious PDF — malware analysis report

Static analysis result for SHA-256 98d904f2c7128fd8…

MALICIOUS

PDF

46.3 KB Created: 2020-08-26 08:08:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d58eef90f12d8646183e655423a89a3 SHA-1: 262465e078f420a75b276b4662d0156d500fa0b0 SHA-256: 98d904f2c7128fd892dfbbf9965d8af5fde1ee7ff272ccb24518a24718816b42
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains, but one critical link redirects to a known malicious domain (ttraff.cc). This suggests a link farm or SEO poisoning tactic designed to lure users to malicious content. The document body, though heavily obfuscated, contains text related to a Sanyo manual and the malicious URL, reinforcing the phishing lure. The primary malicious IOC is the redirector URL.

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=sanyo+dp19649+manual
    • http://files.adamvoss.com/uploads/1/3/0/7/130776529/b0511474098ca4.pdf
    • http://nelux.inspirationoftime.com/uploads/1/3/0/8/130874012/xirepugoxum_xanorimi_rovovu_josupor.pdf
    • https://cdn.shopify.com/s/files/1/0431/5981/4306/files/borajamusumel.pdf
    • https://cdn.shopify.com/s/files/1/0461/8105/6665/files/nojarakabuzutekur.pdf
    • https://cdn.shopify.com/s/files/1/0428/8564/4447/files/14987740918.pdf
    • https://cdn.shopify.com/s/files/1/0431/2861/9168/files/100_approximation_questions.pdf
    • https://cdn.shopify.com/s/files/1/0431/2072/2080/files/galexavinemadulamab.pdf
    • https://cdn.shopify.com/s/files/1/0432/5313/7576/files/fujonosezubimaruwivif.pdf
    • https://cdn.shopify.com/s/files/1/0430/9486/8122/files/57866097425.pdf
    • https://cdn.shopify.com/s/files/1/0435/0276/4184/files/lilegamebuxatulexawasopu.pdf
    • https://cdn.shopify.com/s/files/1/0430/5344/9367/files/fusionner_documents.pdf
    • https://cdn.shopify.com/s/files/1/0431/1692/0994/files/wamovesu.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_off0000667f.bin
b769b6863d658ef6628a0df0ed9d0645282a42611261bd8542d9d280d4f83ff2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x667F 5124 bytes
font_01_sfnt_off000077d0.bin
f87ae4e4b1b69cd69ee56fc780f3315b267aa717a54fe68ddb30b4bdc4e5c004		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77D0 11848 bytes
font_02_sfnt_off00009ecc.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9ECC 4324 bytes

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