Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ab2d92c11c46925…

MALICIOUS

PDF

46.5 KB Created: 2020-08-12 09:20:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3f6210f99b48c7ff557b345b50915595 SHA-1: 36690eff428a51d63eb4a081e4bd17497dd00cb7 SHA-256: 2ab2d92c11c469254799f9ed718a9df3a34108ff2e6754e40d872e167b7efcc3
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, with one critical heuristic identifying it as a link farm pointing to a malicious redirector. The document body, though partially corrupted, includes text related to 'Weights training program pdf' and the malicious URL. This suggests a social engineering tactic to trick users into visiting the redirector, likely leading to further malicious content or downloads.

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=weights+training+program+pdf
    • http://files.ciprianoclassic.com/uploads/1/3/1/0/131070151/xijubamefubajetana.pdf
    • http://tazubazem.pureumjosoprano.com/uploads/1/3/1/3/131383965/8280794.pdf
    • http://files.wheatgrasspublishing.com/uploads/1/3/1/3/131381414/tumirazerawufu_borefetefupo_sulunowuji.pdf
    • http://files.equestrianpa.com/uploads/1/3/1/4/131453415/kavosimikew.pdf
    • https://cdn.shopify.com/s/files/1/0432/2715/2539/files/vita_update_blocker.pdf
    • https://cdn.shopify.com/s/files/1/0435/3599/0943/files/program_convert_to_word_free_download_full_version.pdf
    • https://cdn.shopify.com/s/files/1/0434/1016/1829/files/21283349977.pdf
    • https://cdn.shopify.com/s/files/1/0431/7921/2962/files/zokiwagoja.pdf
    • https://cdn.shopify.com/s/files/1/0435/5024/5028/files/wawuriboposabimeko.pdf
    • https://cdn.shopify.com/s/files/1/0434/2313/7957/files/89896073679.pdf
    • https://cdn.shopify.com/s/files/1/0431/7102/0954/files/49675636229.pdf
    • https://cdn.shopify.com/s/files/1/0431/4251/2797/files/82991392773.pdf
    • https://cdn.shopify.com/s/files/1/0432/9806/2501/files/breast_cancer_treatment_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0438/1265/1170/files/o_biocentrismo.pdf
    • https://cdn.shopify.com/s/files/1/0429/5639/0559/files/abcde_assessment.pdf
    • https://cdn.shopify.com/s/files/1/0431/8937/1040/files/ballooning_drawings.pdf
    • https://cdn.shopify.com/s/files/1/0432/4117/7252/files/japan_world_war_2.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_off000077ba.bin
482da83f04712293659d221e2f58e76fcb18991741aca57edd21a4a2c0f0bef5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77BA 5436 bytes
font_01_sfnt_off00008a17.bin
88ee8b0923d3dc78a220b581ac4db76d5ab21d66f85aa09664ca566cbc4d6406		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A17 10140 bytes

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