Malicious PDF — malware analysis report

Static analysis result for SHA-256 e056310ef4d81b84…

MALICIOUS

PDF

38.4 KB Created: 2020-08-19 00:31:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 731dbdce065e4ef7a100130e50816ff6 SHA-1: dd42f56fbb594250ca4d86c0c2629034a8bb6652 SHA-256: e056310ef4d81b84869f282dfdfb5d31010f53a94e7eff9675ac4c5aece8510f
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=black+desert+mobile+guide'. This indicates the document's primary purpose is to redirect the user to potentially harmful content. The document also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify. 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.com/pify?keyword=black+desert+mobile+guide
    • http://files.farmviabilityconference.com/uploads/1/3/0/8/130814225/f40784d9562fc8.pdf
    • http://files.feng-ge.net/uploads/1/3/1/1/131164152/tutadox.pdf
    • https://cdn.shopify.com/s/files/1/0437/4839/3112/files/vitamin_a_deficiency.pdf
    • https://cdn.shopify.com/s/files/1/0438/6314/6656/files/ncaa_bracket_editable.pdf
    • https://cdn.shopify.com/s/files/1/0433/7631/2471/files/64722344444.pdf
    • https://cdn.shopify.com/s/files/1/0431/7085/7124/files/aflac_initial_disability_claim_form.pdf
    • https://cdn.shopify.com/s/files/1/0437/3128/8216/files/burudoluwuwumezuseguri.pdf
    • https://cdn.shopify.com/s/files/1/0430/9988/1639/files/nestle_aptitude_test_past_questions.pdf
    • https://cdn.shopify.com/s/files/1/0430/9801/3845/files/bestiario_4_pathfinder.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96672573922.pdf
    • https://cdn.shopify.com/s/files/1/0432/6824/3624/files/anisocitosis_microcitosis.pdf
    • https://cdn.shopify.com/s/files/1/0437/7133/0709/files/how_to_move_villagers_1._14.pdf
    • https://cdn.shopify.com/s/files/1/0441/3823/4008/files/4608837645.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kupenase.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_off00005891.bin
8d046336e2d47ce84f3baa92ce37a9455b683bd26f1c4afc23d150ff25bfc778		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5891 5512 bytes
font_01_sfnt_off00006b2f.bin
6c2bde78ac9428c81cd469186e698268a42744ad9f715c89e21d586324590d1b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B2F 9916 bytes

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