Malicious PDF — malware analysis report

Static analysis result for SHA-256 a45ae89ae5f14811…

MALICIOUS

PDF

50.0 KB Created: 2020-08-04 15:28:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 68625b149a2d750c6fc60040d2cb831b SHA-1: 65041089f9700c5f3eac503a33d8031524414ecb SHA-256: a45ae89ae5f148113d452504207f2217b346e4fb199b83285f94206a66aca047
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, identified as a PDF SEO link farm. One of these links, 'https://ttraff.ru/pify?keyword=the+5th+wave+book+2+pdf', is flagged as a known malicious redirector. The document body appears to be malformed or corrupted, but the presence of numerous links suggests an attempt to manipulate search engine results or redirect users to potentially harmful 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.ru/pify?keyword=the+5th+wave+book+2+pdf
    • http://files.emotionsinwriting.com/uploads/1/3/1/4/131438362/muwunokobile.pdf
    • http://falivakom.healthyforestcoalition.ca/uploads/1/3/2/3/132303189/7554233.pdf
    • http://files.tandhathletics.com/uploads/1/3/1/3/131381363/gomixelerunu-nojisuzaxonukab-nabopuw-vizor.pdf
    • http://files.theoldrectorynursinghome.org/uploads/1/3/1/3/131379049/sugizavorad_fawovelik_xojoduxifule.pdf
    • http://files.mooresquareband.com/uploads/1/3/1/0/131070434/dilatojagixoguzewag.pdf
    • https://cdn.shopify.com/s/files/1/0432/3459/0878/files/7079506762.pdf
    • https://cdn.shopify.com/s/files/1/0436/6961/8841/files/xixufuxuwuzanenal.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wupukibasabozuxijixosi.pdf
    • https://cdn.shopify.com/s/files/1/0430/5797/1354/files/93538174906.pdf
    • https://cdn.shopify.com/s/files/1/0437/8184/9245/files/55572250011.pdf
    • https://cdn.shopify.com/s/files/1/0431/6512/2711/files/lamisun.pdf
    • https://cdn.shopify.com/s/files/1/0429/9508/9559/files/uno_challenge_rule.pdf
    • https://cdn.shopify.com/s/files/1/0434/9899/5864/files/velugepotavapakedizog.pdf
    • https://cdn.shopify.com/s/files/1/0431/4402/0125/files/shenzhen_rf-_link_technology.pdf
    • https://cdn.shopify.com/s/files/1/0434/4987/6630/files/rezaredefelejup.pdf
    • https://cdn.shopify.com/s/files/1/0430/3287/1074/files/15863129233.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_off00008628.bin
571548d5c29a0d89763a68698a36a61276843aaca47e90efd38b69ccbc00e7e5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8628 5384 bytes
font_01_sfnt_off000098a0.bin
cb810751fb805b73fd401f45b9a5d6432019fc042adce309ef11092b8ab2f80d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x98A0 10208 bytes

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