Malicious PDF — malware analysis report

Static analysis result for SHA-256 adf177b34a038984…

MALICIOUS

PDF

84.8 KB Created: 2021-03-23 02:24:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: be8ab587f7279ffc2778af1b4836e62c SHA-1: ed89c4dfa53963fff96de520d37bafc919188406 SHA-256: adf177b34a038984d1c767002f53a06996e965c498429598c6a68eb2cffe0fa6
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is highly indicative of a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support its malicious nature. The document body, though heavily obfuscated, contains keywords related to a product sale, suggesting a lure to a malicious URL for potential credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://lozipotod.ru/aws?utm_term=neato+robotics+botvac+d7+connected+black+friday
    • https://static.s123-cdn-static.com/uploads/4383308/normal_5fe46da79998e.pdf
    • https://cdn-cms.f-static.net/uploads/4450884/normal_603ba9ea1e4fd.pdf
    • https://bosudire.weebly.com/uploads/1/3/4/4/134456289/tuwofosi_xitarodejagel.pdf
    • https://cdn.sqhk.co/nugofonavuf/czLhz7z/college_scholarships_for_crafters.pdf
    • http://womirewuzakuf.sportsontheweb.net/45015523236.pdf
    • https://static.s123-cdn-static.com/uploads/4380527/normal_5ffb6d2d3e225.pdf
    • https://cdn.sqhk.co/samofetob/khgepM0/31688849763.pdf
    • https://cdn.sqhk.co/pivokazi/Usjijao/tazogived.pdf
    • https://static.s123-cdn-static.com/uploads/4460954/normal_6007e518b2e68.pdf
    • https://cdn.sqhk.co/zabitokepum/jdgdpYs/free_calls_international_phone_calling_app_download.pdf
    • https://tapinizeguzuj.weebly.com/uploads/1/3/4/4/134456840/xopobuduxe_raxuteninivef_fixazitet_zivujepix.pdf
    • http://tafiwon.mywebcommunity.org/molle_ii_3_day_assault_pack_-_multicam_ocp.pdf
    • https://cdn-cms.f-static.net/uploads/4426060/normal_6047a14439776.pdf
    • http://budofibo.mygamesonline.org/mapaxuwademexi.pdf
    • https://cdn.sqhk.co/goluxewimabu/icjdig3/77236005490.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://24d1f61b-f5c5-4d2f-8180-62589f44e8d8.filesusr.com/ugd/eed56f_089a0f7a23b84a3cb50eae972c9c9733.pdf?index=true
    • http://fukuselumetu.myartsonline.com/mathematics_for_machine_learning_imperial_college_london.pdf
    • https://uploads.strikinglycdn.com/files/b8096ab9-3e9e-4490-8ef3-7dc481177af8/kiwameze.pdf
    • https://a72b158e-cead-41d6-a0b3-8518216316a4.filesusr.com/ugd/35c6e2_c7ff863c3e0940e8959624703c59ea51.pdf?index=true
    • https://d8ec88ce-93b1-4b83-b294-7016fd5b5063.filesusr.com/ugd/366252_10ea59e3af504e53a328787269a6209f.pdf?index=true
    • https://uploads.strikinglycdn.com/files/3af6996b-e02d-4350-930d-1186765f1feb/how_to_make_a_simple_machine_lever.pdf
    • https://33b7cf8b-1cb2-46d9-9063-17e97cba5e80.filesusr.com/ugd/9edd50_821af897e17b41749126f6af7d088de9.pdf?index=true
    • https://2ed9768e-82a7-41f7-bc91-4b86d8d7aa0f.filesusr.com/ugd/bdbd91_d1851b80efda47fcbcde0308efe80d17.pdf?index=true
    • https://uploads.strikinglycdn.com/files/52982ed4-3f6a-4df3-968f-081b2bb7ea01/19741043100.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_off0000f4b4.bin
874d7d9b8e3481fa78ee01c2e88b06a1deecadcd8597ec4ebf767441a534ce4d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF4B4 5220 bytes
font_01_sfnt_off00010696.bin
0d9e96cc0cc2563ffd54c9798c804431040594540487c3a71f30785997dd09c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10696 19508 bytes
font_02_sfnt_off00013517.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13517 4324 bytes

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