Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d6445937c0ef9b7…

MALICIOUS

PDF

75.6 KB Created: 2021-03-18 00:02:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a01f6f6fd34b16bd5c729826f4a3439f SHA-1: 54876f10187a3ecafd2088dcf2c6586171a7e1e9 SHA-256: 2d6445937c0ef9b7bf78243e6c5b9409159223d2a47abe3620813400f1a0ac47
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URI that directs users to a suspicious domain, likely for phishing or malware distribution. ClamAV and ML classifiers flagged this PDF as malicious, indicating a high probability of malicious intent. The document body, though heavily corrupted, suggests a lure related to product instructions, which is a common tactic for phishing attacks.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://maypoin.ru/aws?utm_term=hamilton+beach+easy+reach+toaster+oven+instructions
    • https://static.s123-cdn-static.com/uploads/4382004/normal_5fe5b285000ef.pdf
    • http://itrom.fun/8349167996ou2nv.pdf
    • http://mangalvpodarok.ru/what_is_the_original_story_of_the_three_little_pigss7z6c.pdf
    • http://sethel.xyz/nojawxg7g1.pdf
    • https://jewupoma.weebly.com/uploads/1/3/1/4/131437657/dixesilitutajo.pdf
    • https://cdn.sqhk.co/zadorari/geifg7l/free_movie_streaming_apps_for_android_tv_box.pdf
    • https://cdn.sqhk.co/kutajanode/OUgeian/12064946157.pdf
    • http://goldstein.berlin/ripegpo775.pdf
    • http://aduo5.online/emerson_lc320em2_change_aspect_ratio_without_remotenu9hc.pdf
    • https://tizupimarijifik.weebly.com/uploads/1/3/1/6/131606002/gepadifiwomaw-jezurasoferel.pdf
    • https://cdn.sqhk.co/delojiwuguj/JgdSjcN/raripowomemirotira.pdf
    • https://cdn.sqhk.co/joduragenep/ggRNwyj/planet_pilkey_app_store.pdf
    • http://myluckybet.xyz/85856846424i4vt1.pdf
    • https://cdn.sqhk.co/totudavomud/bOjiajh/arcade_pinball_machine_app.pdf
    • https://tesiligozi.weebly.com/uploads/1/3/1/4/131407846/zapidevu.pdf
    • https://sipizoreju.weebly.com/uploads/1/3/4/1/134131451/dulewopefi_putaximepevana_luruvafozu.pdf
    • http://ridunculus.com/how_to_fill_a_bobbin_on_a_singer_tradition_sewing_machinegmqx6.pdf
    • https://soregoba.weebly.com/uploads/1/3/0/7/130739918/e8787.pdf
    • https://cdn-cms.f-static.net/uploads/4412887/normal_60298860a823b.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/seriposuj/43987463666.pdf
    • https://s3.amazonaws.com/muwemivumazulax/how_to_reset_proform_505_cst_treadmill.pdf
    • https://s3.amazonaws.com/dazawojob/business_case_template_for_promotion.pdf
    • https://s3.amazonaws.com/xuzed/how_to_cook_brown_rice_slow_cooker.pdf
    • https://s3.amazonaws.com/jajuzasalikirut/hsbc_global_research_report.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://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea2b.bin
99fb8eaed4fa495734cb46e31ef135b79f0db4342d12082c986006e3aaf68a32		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEA2B 5304 bytes
font_01_sfnt_off0000fc0f.bin
80220b9a5470c028bc8b3232ce8ff5c0e4c500be11e86b8b15a8b96ef06f23fe		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFC0F 10792 bytes

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