Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ae14a800f4dd5e7…

MALICIOUS

PDF

64.5 KB Created: 2020-08-15 16:42:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e78e3e2e25e05dc142d92d294c162fa6 SHA-1: e232fb148d2f891c08e294dda15d7ae6520e22a5 SHA-256: 5ae14a800f4dd5e7c65c261967529a8f1ddd6e0babf49a25ec860c4bf19529aa
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, which is disguised as a Maple Leaf Foods annual report. This suggests a phishing or malware distribution attempt. The PDF also hosts a large number of other PDF links, likely for SEO manipulation or to obscure the malicious redirector. No scripts were extracted, but the presence of malicious links is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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.ru/pify?keyword=maple+leaf+foods+annual+report+2016
    • http://files.erichiggs.ca/uploads/1/3/0/8/130874575/gukonojukemuwux-ritizopigupita-piluvi-nufakeromusode.pdf
    • http://files.ausmazehanatkhan.com/uploads/1/3/0/7/130739415/rufoj_duwevewelobem_ripepuwif_kakogefiz.pdf
    • http://files.neilchalmers.com/uploads/1/3/0/7/130740563/bikixiritu.pdf
    • http://mejunidok.ranchospresbychurch.org/uploads/1/3/1/3/131378779/a6676400ff57687.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0435/4444/5079/files/6791784946.pdf
    • https://cdn.shopify.com/s/files/1/0437/3735/0309/files/16420491905.pdf
    • https://cdn.shopify.com/s/files/1/0431/6430/3522/files/87755553478.pdf
    • https://cdn.shopify.com/s/files/1/0450/4177/8838/files/anti_human_globulin.pdf
    • https://cdn.shopify.com/s/files/1/0431/3019/2039/files/vinona.pdf
    • https://cdn.shopify.com/s/files/1/0430/6881/7562/files/53071965139.pdf
    • https://cdn.shopify.com/s/files/1/0432/2390/8520/files/wesefafuzixasomibukev.pdf
    • https://cdn.shopify.com/s/files/1/0438/2123/6384/files/99679700911.pdf
    • https://cdn.shopify.com/s/files/1/0432/7689/4372/files/85072227409.pdf
    • https://cdn.shopify.com/s/files/1/0427/5824/2470/files/moxojibexetenakofu.pdf
    • https://cdn.shopify.com/s/files/1/0433/2562/0374/files/dedicatorias_y_agradecimientos_para_tesis.pdf
    • https://cdn.shopify.com/s/files/1/0431/0797/5330/files/zuminudokemesolelakumu.pdf
    • https://cdn.shopify.com/s/files/1/0436/9301/5195/files/zidomewipitogikixepivijab.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_off0000b45d.bin
1774e99b113a15232e2891ab3d8336d59e85f10aead3793fb69ffb915d12af79		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB45D 5520 bytes
font_01_sfnt_off0000c738.bin
a3d14c762ced7cb1edd54eb9b2fb319afab57d0ce7443b74c549aed9a069e9ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC738 14120 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.