Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfeade0f1c9ceeee…

MALICIOUS

PDF

44.5 KB Created: 2020-08-22 15:25:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 85358776abc9bd1c100124ff13c77ff3 SHA-1: ce233d8d379dd972be467a893f6bfc90fbb733af SHA-256: bfeade0f1c9ceeee92a5dce65cbd07bee6780cd8b2b27486583ebe1341f857cd
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. The heuristic firings indicate that this PDF is part of a link farm, likely intended for SEO manipulation or to distribute malicious content. The primary malicious IOC is the redirector URL, which suggests 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.com/pify?keyword=proform+cardio+hiit+programs
    • http://files.manekrush.org/uploads/1/3/2/6/132682070/1823248.pdf
    • http://files.brissaeden.com/uploads/1/3/0/7/130739376/4209e3.pdf
    • http://files.dreamlandinteriors.com/uploads/1/3/1/4/131438093/gimuneri.pdf
    • http://files.wilbrahamprimary.com/uploads/1/3/0/9/130969768/pesizu.pdf
    • https://cdn.shopify.com/s/files/1/0430/7678/0192/files/achilles_tendon_stretching_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0433/8014/6343/files/gb_whatsapp_gold_free.pdf
    • https://cdn.shopify.com/s/files/1/0440/8328/2070/files/artifacts_in_mri.pdf
    • https://cdn.shopify.com/s/files/1/0438/3303/2864/files/all_notsobot_commands.pdf
    • https://cdn.shopify.com/s/files/1/0449/2178/2427/files/edge_of_the_empire_character_generator.pdf
    • https://cdn.shopify.com/s/files/1/0433/4557/6088/files/39747790229.pdf
    • https://cdn.shopify.com/s/files/1/0434/3057/6295/files/16582425292.pdf
    • https://cdn.shopify.com/s/files/1/0430/8523/4338/files/tuzikidukirejora.pdf
    • https://cdn.shopify.com/s/files/1/0433/9374/5046/files/self_propelled_lawn_mower_walmart.pdf
    • https://cdn.shopify.com/s/files/1/0430/9614/6073/files/buguketokidozedenotu.pdf
    • https://cdn.shopify.com/s/files/1/0431/9461/3924/files/95034978423.pdf
    • https://cdn.shopify.com/s/files/1/0435/4310/1591/files/download_utorrent_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/4244/7265/files/mafosepipiwapogafasofo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006356.bin
ff8040d80f7a252658d923c7aa5f6acb49ed063e1209685e213b4144187d3c54
pdf-font-stream PDF embedded font (sfnt) at offset 0x6356 5104 bytes
font_01_sfnt_off000074a7.bin
c7d5ea0b99fe1b2e217b9029a30a1ec186272ec24479fa116a34249f13ccee66
pdf-font-stream PDF embedded font (sfnt) at offset 0x74A7 10016 bytes
font_02_sfnt_off000096e8.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0x96E8 4324 bytes