Malicious PDF — malware analysis report

Static analysis result for SHA-256 d21c0be7cd5fff6d…

MALICIOUS

PDF

43.4 KB Created: 2020-08-18 15:53:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b719948eef7444b5aabc02df2dc9ee68 SHA-1: b87b97cb4ec5433b98a27e88666639a6aa1ad81f SHA-256: d21c0be7cd5fff6df62da53bf27bfedcfb3ce0bc46314469a84a9db32b89cb4d
150 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with one pointing to a known malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, suggesting a link farm or SEO manipulation tactic. The ML classifier also flagged this PDF with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.cc/pify?keyword=jmeter+command+line+test+report
    • http://nilexep.everycolorsapphire.com/uploads/1/3/0/7/130775047/5887978.pdf
    • http://files.decoitowoods.com/uploads/1/3/1/4/131454126/xizegororajupipolib.pdf
    • http://kabujipiz.aghemu.info/uploads/1/3/0/7/130775503/didewakedaz-degirane-zarelavegar-pirufu.pdf
    • http://zesiro.adgermanwarehouse.com/uploads/1/3/2/3/132303382/426729.pdf
    • http://files.woodcreekhealthcare.com/uploads/1/3/0/7/130775310/71dd236ebf4c9e.pdf
    • https://cdn.shopify.com/s/files/1/0430/0704/9887/files/already_just_yet_exercise.pdf
    • https://cdn.shopify.com/s/files/1/0430/8100/7255/files/rilosejiruxe.pdf
    • https://cdn.shopify.com/s/files/1/0434/7569/7830/files/bageterogakaridazilepo.pdf
    • https://cdn.shopify.com/s/files/1/0432/7663/2214/files/weighing_scale_calibration_certificate.pdf
    • https://cdn.shopify.com/s/files/1/0436/9245/8152/files/kodawusojanivesovugul.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gipal.pdf
    • https://cdn.shopify.com/s/files/1/0432/8023/6702/files/92484408067.pdf
    • https://cdn.shopify.com/s/files/1/0430/7881/1797/files/24706794067.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mijafovaginidobu.pdf
    • https://cdn.shopify.com/s/files/1/0435/9464/5672/files/ps_form_8076.pdf
    • https://cdn.shopify.com/s/files/1/0429/7805/0211/files/verbal_ability_test_books.pdf
    • https://cdn.shopify.com/s/files/1/0433/1687/1336/files/46965088971.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_off00006224.bin
3d9a510ea226735e61992bd9c47fe20ab07e57907e3b017a26f5cb6e75b53299		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6224 5208 bytes
font_01_sfnt_off000073b4.bin
4840552832b880bb277e7a5d55e2008ef2c083a363e6f793dab059844761eea1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73B4 15444 bytes

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