Malicious PDF — malware analysis report

Static analysis result for SHA-256 580591343fbccf05…

MALICIOUS

PDF

39.9 KB Created: 2020-08-12 01:28:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6ab38f01e922d767021a7e6ec1591ed4 SHA-1: c96dbc7ed3cdd8eadf71459fc016933c8eb37f80 SHA-256: 580591343fbccf0578fb1901217578fc181053fcff145f14af2c7f981752f58f
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, identified as a link farm, with one critical heuristic flagging a redirector to a known malicious domain. The document body, though heavily obfuscated, contains text related to 'modals of future possibility exercises pdf' and the malicious URL, suggesting a lure to disguise the malicious intent. The primary malicious URL is https://ttraff.ru/pify?keyword=modals+of+future+possibility+exercises+pdf, which is likely used to redirect users to further malicious content.

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=modals+of+future+possibility+exercises+pdf
    • http://files.uicbcq.org/uploads/1/3/1/4/131454114/6177993.pdf
    • http://verod.canal-art-by-julie.co.uk/uploads/1/3/2/6/132695578/gelulugedib.pdf
    • http://sulupin.campaignp31.com/uploads/1/3/2/6/132681579/03133d4f4263b.pdf
    • http://kisalam.laughingkookaburracottage.com/uploads/1/3/0/8/130814328/vezojoj.pdf
    • https://cdn.shopify.com/s/files/1/0438/5089/1424/files/69724575171.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rasebiv.pdf
    • https://cdn.shopify.com/s/files/1/0436/4327/3369/files/bank_secrecy_act_training.pdf
    • https://cdn.shopify.com/s/files/1/0433/2732/4310/files/49609160107.pdf
    • https://cdn.shopify.com/s/files/1/0432/6028/0992/files/the_unofficial_guide_to_real_estate_investing.pdf
    • https://cdn.shopify.com/s/files/1/0434/2844/6358/files/bijefakasutusokajopi.pdf
    • https://cdn.shopify.com/s/files/1/0428/7417/5644/files/zarorafelin.pdf
    • https://cdn.shopify.com/s/files/1/0433/6913/6280/files/fukebe.pdf
    • https://cdn.shopify.com/s/files/1/0429/2552/3103/files/jilutonorumodojejidijef.pdf
    • https://cdn.shopify.com/s/files/1/0431/8956/7650/files/98815242883.pdf
    • https://cdn.shopify.com/s/files/1/0428/8747/9455/files/25033025497.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_off00005c4a.bin
e3263c2e1aef0b358f050c071b35bb0bcb8023768e1a55a3202d4273d3259390		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C4A 5464 bytes
font_01_sfnt_off00006f00.bin
a23e824fa3042bad4585346ebf14944babf6346038b426fba36464837964c8b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F00 10588 bytes

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