Malicious PDF — malware analysis report

Static analysis result for SHA-256 74ae0a15a0f7d601…

MALICIOUS

PDF

37.2 KB Created: 2020-08-31 09:58:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 217a6f8da6052374a1c1a8779fee2935 SHA-1: f3fc16888b5ce9d00d5ef4953cc89fd898ae7ac5 SHA-256: 74ae0a15a0f7d6016935dd46674d73d0288cadbc4409c1135f5fb1bc9aa6c0c2
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a malicious redirector link disguised as a download for 'Moana coloring pages pdf'. This link, 'https://ttraff.com/wix?keyword=moana+coloring+pages+pdf', points to known malicious infrastructure. The document also contains a large number of links to other PDFs hosted on Shopify, likely part of a link farm to improve SEO for malicious content. While no scripts were explicitly extracted, the PDF structure and malicious link indicate an attempt to redirect the user to a harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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/wix?keyword=moana+coloring+pages+pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0436/1574/8253/files/56966883.pdf
    • https://cdn.shopify.com/s/files/1/0431/2642/3701/files/33863192211.pdf
    • https://cdn.shopify.com/s/files/1/0465/9560/4645/files/the_installation_failed_in_the_safe_os_phase.pdf
    • https://cdn.shopify.com/s/files/1/0437/7437/8142/files/flow_cytometric_immunophenotyping_for_hematologic_neoplasms.pdf
    • https://cdn.shopify.com/s/files/1/0429/6045/3785/files/rasutuwex.pdf
    • https://static.usrfiles.com/ugd/badafb_e1cda336c16242d5b11a51b018dcbc8f.pdf
    • https://static.usrfiles.com/ugd/b8c837_03bb5753474e47d880010b5f37b57099.pdf
    • https://static.usrfiles.com/ugd/b8c837_a99853fd863d43dbb0d664d8015ed262.pdf
    • https://static.usrfiles.com/ugd/63d3ad_0d80daaa80ef4f31afd1e855d23a1c8a.pdf
    • https://static.usrfiles.com/ugd/b8c837_6ecce2c2441a42d0b8ca3ab46d43b0e0.pdf
    • https://cdn.shopify.com/s/files/1/0432/4176/7072/files/65767412702.pdf
    • https://cdn.shopify.com/s/files/1/0431/5840/5275/files/49144215520.pdf
    • https://cdn.shopify.com/s/files/1/0433/4059/5352/files/josanuvivadadubiwivejevag.pdf
    • https://cdn.shopify.com/s/files/1/0432/6473/7433/files/25996672461.pdf
    • https://cdn.shopify.com/s/files/1/0428/9059/2422/files/2013_kia_soul_owners_manual.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000546b.bin
b84b2dc602bf98dbc3587a80634ddcb14f1ef4b3ea0fc343d666cfddc1731875		 pdf-font-stream PDF embedded font (sfnt) at offset 0x546B 5328 bytes
font_01_sfnt_off00006698.bin
b42d48a3b8e657ccb0312f16482add6bf4515cd5dccb66ab50028079cd7291c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6698 9832 bytes

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