Malicious PDF — malware analysis report

Static analysis result for SHA-256 67699a485a2cca9e…

MALICIOUS

PDF

41.2 KB Created: 2020-08-23 09:01:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e7aecc83e625862513e55f7c2119d2be SHA-1: c295057722e2fb2522b6f7f415089e30954c0e82 SHA-256: 67699a485a2cca9e4190aa61871c44157d05400bc31e23e2669771bc7437efdd
162 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a link farm, with numerous embedded URLs, many of which are hosted on Shopify. The presence of a 'download button' lure further supports a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect the user to malicious content.

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/pify?keyword=django+url+template+tag+get+parameters
    • http://litenu.cranechuanfa.com/uploads/1/3/1/4/131409236/3798648.pdf
    • http://files.ballinloughgfc.ie/uploads/1/3/0/8/130874667/komatunemeju.pdf
    • http://rogasat.firstresponsetraininggroup.com/uploads/1/3/0/7/130776445/f36d08716ef.pdf
    • http://zizuz.justaskamom.com/uploads/1/3/1/1/131164250/wakibokitexozu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0430/0803/2922/files/regenaf.pdf
    • https://cdn.shopify.com/s/files/1/0435/2737/2955/files/2256175470.pdf
    • https://cdn.shopify.com/s/files/1/0428/7230/7875/files/megiruwejodot.pdf
    • https://cdn.shopify.com/s/files/1/0434/9070/5574/files/pakistani_audio_old_song.pdf
    • https://cdn.shopify.com/s/files/1/0433/9141/8526/files/75140386218.pdf
    • https://cdn.shopify.com/s/files/1/0429/5488/3231/files/sawewanudet.pdf
    • https://cdn.shopify.com/s/files/1/0435/9494/0573/files/scala_functional_programming_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0433/7057/8070/files/24422859732.pdf
    • https://cdn.shopify.com/s/files/1/0438/7107/6520/files/sobiruwonip.pdf
    • https://cdn.shopify.com/s/files/1/0431/8186/7176/files/1790438238.pdf
    • https://cdn.shopify.com/s/files/1/0435/8825/5912/files/bourne_idenity_soundtrack.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_off00005f06.bin
13bc02b926d0c80f6e91610a1c18d01107ae4ce6ebf091152f1af833f04fb87f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F06 5216 bytes
font_01_sfnt_off000070b8.bin
7e2312263663915e99ef58be1f41364b44ff5c0e168e1c1630fa60ac6ca98975		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70B8 11624 bytes

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