Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a83b773d8b42b88…

MALICIOUS

PDF

41.3 KB Created: 2020-08-10 23:59:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 501fba7b2931c5439cd13db4f7b4ffd8 SHA-1: 72144b96a94981339db1741f2cefb877d91082e5 SHA-256: 4a83b773d8b42b886e0e628edcfaea0527908f1486c919df5fd0c2432ab9a578
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The primary malicious URL, 'https://ttraff.cc/pify?keyword=church+administration+management+pdf', is directly linked to this redirector. The document body, though heavily obfuscated, contains this URL and other links, suggesting a lure to external malicious content. No scripts were extracted from this sample.

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=church+administration+management+pdf
    • http://fisigamof.annotalegal.com/uploads/1/3/0/8/130874359/losev_motojevod_bojoka_nojosovu.pdf
    • http://files.flynnmediagroup.com/uploads/1/3/2/6/132681492/finabate.pdf
    • http://files.rhizolab.com/uploads/1/3/1/4/131437576/e73f8.pdf
    • https://cdn.shopify.com/s/files/1/0440/5251/2918/files/866-_928-_0183.pdf
    • https://cdn.shopify.com/s/files/1/0432/8977/2187/files/xudelifetegi.pdf
    • https://cdn.shopify.com/s/files/1/0437/8030/9141/files/for_crying_out_loud_meaning.pdf
    • https://cdn.shopify.com/s/files/1/0436/9953/6040/files/suwanujuwavakas.pdf
    • https://cdn.shopify.com/s/files/1/0438/4312/5413/files/60732330731.pdf
    • https://cdn.shopify.com/s/files/1/0437/7804/8151/files/12018958598.pdf
    • https://cdn.shopify.com/s/files/1/0436/9743/8875/files/xafipaxedamusilew.pdf
    • https://cdn.shopify.com/s/files/1/0431/5529/2317/files/gungeon_full_metal_jacket.pdf
    • https://cdn.shopify.com/s/files/1/0428/9419/6902/files/lipafenasurosine.pdf
    • https://cdn.shopify.com/s/files/1/0433/1867/3566/files/basics_cctv_system.pdf
    • https://cdn.shopify.com/s/files/1/0433/5910/9279/files/sivatonuka.pdf
    • https://cdn.shopify.com/s/files/1/0434/4555/1256/files/instafollow_pro_apk.pdf
    • https://cdn.shopify.com/s/files/1/0433/7978/5891/files/bharat_acharya_microprocessor.pdf
    • https://cdn.shopify.com/s/files/1/0433/8640/5022/files/capillary_action_in_plants.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_off0000620a.bin
fc858d8b27e83d48c22dfedb303c70fdb0c3d56847922c28731b1791ff893856		 pdf-font-stream PDF embedded font (sfnt) at offset 0x620A 5440 bytes
font_01_sfnt_off00007466.bin
9122fa633258056db1075239fdf24893d8e4d81fcf6d60083c517f37be88f388		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7466 10476 bytes

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