Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f980aee2f6e5060…

MALICIOUS

PDF

43.1 KB Created: 2020-08-08 00:27:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4d25aae5ef5ee16bff11c503b69dc398 SHA-1: 010dc417a39239549a4e93989af7fee06d4e2c79 SHA-256: 1f980aee2f6e5060819376609845cba6483b618312e7994f91df10c827f1d83f
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically `https://ttraff.cc/pify?keyword=navy+blue+jackets+manual+pdf`. This indicates the document's primary purpose is to redirect the user to a malicious site. The presence of a PDF link farm further supports the malicious intent, aiming to distribute links to potentially harmful content. No scripts were extracted from this sample, but the embedded URLs and the redirector link strongly suggest a phishing or malware distribution attempt.

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=navy+blue+jackets+manual+pdf
    • http://files.rogercoss.com/uploads/1/3/0/7/130738875/vavolupabukar.pdf
    • http://files.scsurfaces.net/uploads/1/3/2/6/132696060/6850984.pdf
    • http://lamikix.colbycedarsmith.com/uploads/1/3/2/6/132695615/2b966.pdf
    • https://cdn.shopify.com/s/files/1/0434/3015/0296/files/15708914710.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kenetawibonilolususede.pdf
    • https://cdn.shopify.com/s/files/1/0436/9815/9769/files/24512616374.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/70339383958.pdf
    • https://cdn.shopify.com/s/files/1/0437/4442/8181/files/kovotegibilipixuwogixivem.pdf
    • https://cdn.shopify.com/s/files/1/0431/0522/2818/files/2293737925.pdf
    • https://cdn.shopify.com/s/files/1/0432/8495/5300/files/kenmore_bottom_freezer_ice_maker_not_working.pdf
    • https://cdn.shopify.com/s/files/1/0429/7523/2153/files/sirim.pdf
    • https://cdn.shopify.com/s/files/1/0433/3151/8622/files/majefuxewov.pdf
    • https://cdn.shopify.com/s/files/1/0431/4074/3329/files/movenuvijiwew.pdf
    • https://cdn.shopify.com/s/files/1/0432/8695/4140/files/93234724966.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_off000065f5.bin
4545dd9b122e97295d0b79c8999f528ca7c25433b94b368ccf21322b470909d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65F5 5616 bytes
font_01_sfnt_off00007921.bin
1db1560858be0e51ae2070eafd049a6421dfb41e9afee7ab42612431d63de9bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7921 11780 bytes

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