Malicious PDF — malware analysis report

Static analysis result for SHA-256 580c4a1abbb074c5…

MALICIOUS

PDF

84.7 KB Created: 2021-07-22 00:33:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: f75742df3e911435ffd33df0038606dd SHA-1: e215b5499971ebe612b8e0eb0bf98cb662dd26fa SHA-256: 580c4a1abbb074c5835a45dbb0376aa42493f43614b1b8be8c96bc48ca764a5e
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely used to host a phishing page. No scripts were extracted, but the PDF structure and heuristics suggest it's designed to trick users into visiting a malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://oniceh.ru/square?utm_term=countryside+stewardship+grants
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f1b2af5d65030040b428cb/1626452655208/22883913638.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f722dc0830185dc36b7503/1626809053128/bahubali_2_movie_total_collection.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e8a5810070b60c7328dacd/1625859457623/high_tide_cycles.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60f58d05668793736d4ca092/1626705157730/one_last_day.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f863ba9f074421d46b984d/1626891195042/steak_and_blow_job_day.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f1eefbd4d27c6a5bb4062d/1626468091924/auguste_comte_sociology_definition.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e9622183ae0c49023af458/1625907745327/49802843382.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f89010d35d04529b25a846/1626902544979/graph_the_compound_inequality_on_the_number_line.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f30f3c9c57c2493937e9d6/1626541884866/57057081606.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60f34b061db272198f970256/1626557190682/wivasodixujusefilosisofon.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e94b16566ded7d61adee73/1625901847109/nedusazuravepamel.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60ec94771d0b39337552719b/1626117239410/tuxubus.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f88bb5d41ff11b8bfbf6bf/1626901429426/59474429096.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f80a8d28ef38068407e017/1626868365407/55076656270.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60ee475d115d504d3a8701fa/1626228573166/emotion_oriented_coping.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60f254a99c7c9f0ea9904fd0/1626494121112/gejom.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ee4557114e6b7b7de779d3/1626228055636/the_height_of_a_person.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f1d093ed79217d2b77e443/1626460308014/zizixopikifof.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://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e6a6.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0xE6A6 16792 bytes
font_01_sfnt_off0000febd.bin
4a29d71a78163ad323bcd8362a380d5ef053d9ddaf0e8211ee5d5e6dbfe5a74f
pdf-font-stream PDF embedded font (sfnt) at offset 0xFEBD 10956 bytes
font_02_sfnt_off00011804.bin
f1049427e4301645174058b3503627531d09741b96cdffd24dc7f5cf0f636d3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x11804 16980 bytes