Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbdff80f568189b6…

MALICIOUS

PDF

451.0 KB Created: 2021-06-17 20:59:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 19513ebd74698a1fb62c681d24735074 SHA-1: d71a72fd534bc47eeaa74a5af07fc3205f7d6528 SHA-256: dbdff80f568189b60f1078aac66db1e7296aefb9e2a474adaa1d94dcfd1e6287
136 Risk Score

Malware Insights

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

The file is a PDF document flagged by ClamAV as a phishing trojan. Heuristics indicate it uses an advance-fee scam lure, presenting language related to lotteries and prize money combined with parcel delivery requirements. The embedded URL points to a suspicious domain, likely part of the scam infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6897

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://coretry.ru/wb?keyword=what%20are%20the%20rules%20of%20freemasonry
    • https://cdn-cms.f-static.net/uploads/4460708/normal_60bbbf3222dab.pdf
    • https://cdn-cms.f-static.net/uploads/4476274/normal_60beebbf2e8ef.pdf
    • https://cdn-cms.f-static.net/uploads/4415292/normal_605066c14f829.pdf
    • https://liburesaxus.weebly.com/uploads/1/3/4/3/134372769/4767566.pdf
    • https://cdn-cms.f-static.net/uploads/4496378/normal_5fd2d1a47a94a.pdf
    • https://cdn-cms.f-static.net/uploads/4369164/normal_60c0b8a23ef71.pdf
    • https://cdn-cms.f-static.net/uploads/4488322/normal_60245325bd493.pdf
    • https://xovawezovikax.weebly.com/uploads/1/3/0/9/130969403/dc0ad63.pdf
    • https://cdn-cms.f-static.net/uploads/4402933/normal_604dc73915275.pdf
    • https://cdn-cms.f-static.net/uploads/4420761/normal_5fdc4887c2abe.pdf
    • https://cdn-cms.f-static.net/uploads/4367921/normal_60c0e44f59912.pdf
    • https://cdn-cms.f-static.net/uploads/4407983/normal_604f377f09684.pdf
    • https://cdn-cms.f-static.net/uploads/4417422/normal_6067c7a8597f6.pdf
    • https://static.s123-cdn-static.com/uploads/4500665/normal_5ff939bab9b63.pdf
    • https://cdn-cms.f-static.net/uploads/4380692/normal_605563e271300.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://static1.squarespace.com/static/60bf6c6a79613f649bb1d090/t/60c8fc54e8a9a15ce76fec72/1623784532192/pugicorn_coloring_pages.pdf
    • https://uploads.strikinglycdn.com/files/2aeed592-a304-49a4-97b8-1f32d97bfea4/57195112221.pdf
    • https://uploads.strikinglycdn.com/files/8f5a01dd-df12-451d-a48c-18c8be8fbc3b/what_does_a_squirrel_tree_frog_sound_like.pdf
    • https://uploads.strikinglycdn.com/files/eded1fe3-85df-49a9-bf00-0508a4c01d05/muvudozefelapasijako.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60c7bf0cef19ca6035eacdd6/1623703309146/sepovijevevexoremu.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60cb5b638e0ac1473d2a3b23/1623939939673/42400063853.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60c7382064e1091fe12d9eff/1623668768741/windows_8_2021.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60cb604e73f2007d61a252ce/1623941198543/minions_2_full_movie_download.pdf
    • https://uploads.strikinglycdn.com/files/0f90da31-2b11-41f0-a153-35be2827ff7d/where_to_hire_writers.pdf
    • https://uploads.strikinglycdn.com/files/b8673ea2-dbe6-4fb4-9956-b501aac70b60/sejasupuraxenudalabevufom.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006acb5.bin
1e62bc2a1fb0a5a84e6c875b859320b090014ea2799a3b6782c44817ed294056		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6ACB5 4956 bytes
font_01_sfnt_off0006bd86.bin
3be7d841fd2e36866d6040cf38edddd0e8ee4ddeeb69c7beeb2493a4865585eb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BD86 14864 bytes
font_02_sfnt_off0006ebed.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EBED 4324 bytes

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