Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0d3ec1231f6748d…

MALICIOUS

PDF

52.3 KB Created: 2020-08-13 23:04:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3fe09e37c203740ac82ef761eac6f76d SHA-1: e93f4910e49025df42896713161ed827508b568a SHA-256: a0d3ec1231f6748de5dc39a26dc22c05b1a186268d396dfcbe4d9661a0c628c5
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous embedded links, a technique often used for SEO poisoning or to redirect users to malicious sites. One critical heuristic firing indicates a link to known malicious redirector infrastructure at 'https://ttraff.com/wb?keyword=ordo%20siphonaptera%20pdf'. The document body, though heavily obfuscated, also contains this URL, suggesting it is the primary lure. No scripts were extracted, but the presence of multiple PDF links points towards a content-driven social engineering attack.

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/wb?keyword=ordo%20siphonaptera%20pdf
    • http://kuxeji.covvc.org/uploads/1/3/0/8/130814328/ginelimeb.pdf
    • http://numozu.amandamariegatton.com/uploads/1/3/2/6/132682076/54f8ec20.pdf
    • http://files.robicheauxart.com/uploads/1/3/2/6/132696174/1077336.pdf
    • https://cdn.shopify.com/s/files/1/0434/0239/5813/files/13132503100.pdf
    • https://cdn.shopify.com/s/files/1/0440/8868/8790/files/pdf_bronkitis_akut.pdf
    • https://cdn.shopify.com/s/files/1/0429/1526/6723/files/catalogo_hinode_ciclo_3.pdf
    • https://cdn.shopify.com/s/files/1/0431/9812/0094/files/34769504860.pdf
    • https://cdn.shopify.com/s/files/1/0434/5279/2982/files/visorevunixuf.pdf
    • https://cdn.shopify.com/s/files/1/0434/3057/6285/files/15185006761.pdf
    • https://cdn.shopify.com/s/files/1/0434/6321/3209/files/gebezowuwolinarojim.pdf
    • https://cdn.shopify.com/s/files/1/0432/3170/7294/files/chemistry_7th_edition_mcmurry.pdf
    • https://cdn.shopify.com/s/files/1/0432/3826/0903/files/52472730047.pdf
    • https://cdn.shopify.com/s/files/1/0428/9809/6284/files/acknowledgement_research_sample.pdf
    • https://cdn.shopify.com/s/files/1/0432/9321/2827/files/popedexuxuluwep.pdf
    • https://cdn.shopify.com/s/files/1/0437/9957/6733/files/sixakokoduwanizofosa.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007b25.bin
a8ee8ccaf334eda87376398b7441d1022e96fe7dac896233341802838f046292		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B25 1604 bytes
font_01_sfnt_off0000834c.bin
9d0b94865a615a7cbbd5ab1f948bf3289a6d373741ce3b6aaa51484ca8e622ae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x834C 4912 bytes
font_02_sfnt_off000093f1.bin
1b20c91f8af946297d452b5a952e1ec1835465d8cbe44a787a8f09226a703f30		 pdf-font-stream PDF embedded font (sfnt) at offset 0x93F1 9980 bytes
font_03_sfnt_off0000b620.bin
8405bb6ca9a6fb718a2e910e1cdde4d74ac2122cab0061dc5f772322db9c7ccd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB620 4324 bytes

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