Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae5925d2904512e1…

MALICIOUS

PDF

222.0 KB Created: 2021-03-11 19:07:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2f425c80bff6afcfb81b74273130fc9f SHA-1: d55c52f8a322f42b35d154ef2c14ae57683747b9 SHA-256: ae5925d2904512e1b9963aaa07199e59b6646cc2816f1009a812be6f3b2123cf
136 Risk Score

Malware Insights

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

The file is a PDF document that exhibits characteristics of an advance-fee scam, as indicated by heuristic firings. It contains an external URI pointing to a suspicious domain, which is likely part of the scam infrastructure. While no scripts were explicitly extracted, the PDF format can embed JavaScript, and the presence of external URLs suggests an attempt to direct the user to a malicious site for further exploitation or information gathering.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9742

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://soxebez.ru/award?keyword=ornamental+plants+book+pdf
    • https://cdn.sqhk.co/wizokawoxo/ngjhjFz/video_poker_online_free.pdf
    • https://cdn.sqhk.co/bitenutugiw/NihIihK/vertigo_remedy_homeo.pdf
    • https://cdn.sqhk.co/feketukadoz/gifjjRx/soccer_stars_2019_mod_apk_android_1.pdf
    • https://doselarifiniwa.weebly.com/uploads/1/3/2/8/132814949/4194790.pdf
    • https://lubawefajisewo.weebly.com/uploads/1/3/4/4/134443910/5176543.pdf
    • https://cdn.sqhk.co/letareximo/il5iegg/49165055810.pdf
    • https://kelezisexuva.weebly.com/uploads/1/3/0/7/130739204/befunewa.pdf
    • https://gofupadosu.weebly.com/uploads/1/3/4/8/134853885/fusikaxiramevo-tarusega.pdf
    • https://cdn.sqhk.co/merabuvi/jbjdFxK/liwezewal.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/zosevid/kalokufuvifo.pdf
    • https://uploads.strikinglycdn.com/files/b09e3300-76d0-46b4-8a09-f50284eb289e/what_are_mortal_sins_in_the_catholic_church.pdf
    • https://67d298e0-85f4-4ad4-bf36-e1ac857e42fc.filesusr.com/ugd/b6bf5b_0a678b83a1a64867bc6256e84ff820d7.pdf?index=true
    • https://abaaaae4-9231-44fc-b12c-ad55ebcc68e7.filesusr.com/ugd/2ca09c_459ba10f3b904e319a2731ee4fa1e738.pdf?index=true
    • https://e40da922-b0e4-44be-9878-2d4898ccab21.filesusr.com/ugd/3a38e0_6e19720300ae492093660821c0d1686d.pdf?index=true
    • https://uploads.strikinglycdn.com/files/e53b47c9-c7a0-4293-924a-7f35fa9abc78/what_child_is_this_greensleeves_piano.pdf
    • https://f1ddcea9-c323-452c-a4d3-aaefec61e50a.filesusr.com/ugd/defd8a_0b8850578c684773b8843374c03ac77e.pdf?index=true
    • https://s3.amazonaws.com/tonemakopinibem/behringer_inuke_nu6000_power_amp_manual.pdf
    • https://uploads.strikinglycdn.com/files/063bf9e7-a334-4544-b4eb-27a4aecc70cb/nvc_feeling_list.pdf
    • https://31c8a3d4-0132-49f1-a04f-09c79d03e01f.filesusr.com/ugd/a4da84_00f5980a3cfb487881da62f19a07ac90.pdf?index=true
    • https://s3.amazonaws.com/niwotipugonuvoz/31801358057.pdf
    • https://da89e6ec-52f9-4c28-8de8-447a2e923c0c.filesusr.com/ugd/5e5b2a_7350aa852ad2422f9c74422b008be36b.pdf?index=true
    • https://b913155d-2712-4fd4-bcc6-651970a8c456.filesusr.com/ugd/e39924_9cbc7ad02bde4b5d8464cf660731f254.pdf?index=true
    • https://9a89a7da-ede3-42eb-a537-7416be21eb2d.filesusr.com/ugd/aaaf79_8bf00197c62c401b961f362f284bcfe8.pdf?index=true
    • https://s3.amazonaws.com/nagev/agar._io_mod_apk_pc.pdf
    • https://uploads.strikinglycdn.com/files/4c6ca885-f6b5-4a07-9a46-97b70c83eb83/angles_in_a_polygon_worksheet_answers.pdf
    • https://s3.amazonaws.com/xazarujokemus/zedidam.pdf
    • https://143c7e3e-1a56-4739-9c24-5aac26b0263b.filesusr.com/ugd/28d7c1_9b7a6bbc8610441aa1be95356b290e8e.pdf?index=true
    • https://7ed754b6-a209-4558-9281-0032c7ee8ade.filesusr.com/ugd/4329d7_dee6dc60019b4475b0c1aabfd50cdd06.pdf?index=true
    • 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_off000330be.bin
69c9e0706c40e563ada4a218e2c78a9c37a3711cce3f2b88b31483a9348044a4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x330BE 5420 bytes
font_01_sfnt_off00034308.bin
f8d8f0e8704869a63f0ffba59dbae14c56ecd797685c15a0844a9e7f63dc9aec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x34308 11244 bytes

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