Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8efe4967582892d…

MALICIOUS

PDF

71.8 KB Created: 2021-03-24 18:41:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 689517f2f716385421f46963149fea19 SHA-1: d28ca19767a29b230a24d72f365123a6c15fef14 SHA-256: e8efe4967582892d5036fb4d0706e931c09efbd38348519a455796b59ca62fee
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI that directs the user to a malicious URL, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the presence of malicious URLs and the document's deceptive content suggest it's designed to trick users into visiting a compromised site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://bologen.ru/wix?keyword=uncut+skateboard+decks+for+sale
    • https://static.s123-cdn-static.com/uploads/4424933/normal_5fdd7bf3275d2.pdf
    • http://duwudivusupo.mygamesonline.org/lemoka.pdf
    • http://nicepics.xyz/given_dictatorial_powersiik1w.pdf
    • http://ita-talia.fun/direjivisupidapon9jgl.pdf
    • https://cdn-cms.f-static.net/uploads/4379355/normal_602707fed2583.pdf
    • http://roskycnmx.com/1_4_tazas_de_harina_en_gramosl8xo2.pdf
    • https://cdn-cms.f-static.net/uploads/4408485/normal_60183741ebc49.pdf
    • https://static.s123-cdn-static.com/uploads/4455684/normal_5feebc3f798f8.pdf
    • http://front-glass.website/vulolaxipulugutq4amk.pdf
    • https://cdn-cms.f-static.net/uploads/4416675/normal_5fe66bdd99e48.pdf
    • https://zomanuvid.weebly.com/uploads/1/3/4/4/134477829/1219b4266.pdf
    • http://faceskinagainbeauty.xyz/how_to_get_rid_of_cysts_and_boilskg8x6.pdf
    • http://azorocheat1.xyz/arlington_tx_police_department_reportsy4qdd.pdf
    • http://ryduslim.website/kingdom_hearts_birth_by_sleep_final_mix_walkthrough_gamefaqs9bwc6.pdf
    • http://custits.space/menadazusanunusifatozwnn1f.pdf
    • https://pesasujax.weebly.com/uploads/1/3/4/8/134882000/napafojogexob-sufaputuzi-sexiratuzojite.pdf
    • https://siwuluwavati.weebly.com/uploads/1/3/4/7/134756127/zakapovuf-ruxefimevaduxe-bitipiz-rarifug.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://fd7a53fe-11c1-4e60-83ad-ac1bb997268f.filesusr.com/ugd/5cf23b_47e6918b0b2c4c119116a7889e344419.pdf?index=true
    • https://9d76d0c6-5807-43ac-a2ba-7b4112d1a20a.filesusr.com/ugd/5cd33b_0fbccd29b4954c34aa4cf9fae3d3708e.pdf?index=true
    • http://widifusi.myartsonline.com/whirlpool_dishwasher_wdf520padm3_not_drying.pdf
    • http://lurarapekakaka.atwebpages.com/17522812639.pdf
    • https://748e6e98-33e2-4bd1-95aa-01ea3505a154.filesusr.com/ugd/704f6c_88ec5815dd094ec99c6d5f75216af014.pdf?index=true
    • https://54a0e2cb-796f-4f80-9aaf-d11633176b06.filesusr.com/ugd/b0c554_22ff9404e9ce400f95b298ec339cd5a5.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_off0000d8c0.bin
b9b7adff98d88394d230bab365f5b55817b43c57144e1660c35f9fdddbb2c965		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD8C0 5208 bytes
font_01_sfnt_off0000ea8c.bin
bdc423e9f422cd535eb8d1dcc2d41c1fefefbbf9c7788577a896f298b360582b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEA8C 11048 bytes

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