Malicious PDF — malware analysis report

Static analysis result for SHA-256 7163f1e513d88f00…

MALICIOUS

PDF

84.3 KB Created: 2021-04-01 17:39:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ab67227547e6f5b05e08d2d9ed7bfa6c SHA-1: 778a1ed00e041f878c36e99c34c15e0a395b372c SHA-256: 7163f1e513d88f0068262dd3007cc8b2f9713c13ef243f40114af7fb935e5286
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'lozipotod.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, appears to be a lure related to 'Sapphire dragon dnd 5e'. No scripts were extracted, but the presence of an external URI in a malicious PDF strongly suggests it's intended to redirect the user to a compromised or malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/wix?keyword=sapphire+dragon+dnd+5e
    • https://cdn.sqhk.co/dojoxuwote/6jcTcib/bally_bag_king_power.pdf
    • http://surozofawowidom.scienceontheweb.net/zabibose.pdf
    • http://dusikazo.mypressonline.com/afinidad_quimica.pdf
    • https://cdn-cms.f-static.net/uploads/4471252/normal_5fdc0c0487f73.pdf
    • http://wedurorokim.mypressonline.com/authentic_leadership_thesis.pdf
    • http://malanefire.sportsontheweb.net/la_otra_historia_de_mxico_diaz_y_madero_gratis.pdf
    • http://salimom.mygamesonline.org/69494098217.pdf
    • https://cdn.sqhk.co/wabasenenem/grLiije/retro_game_reviews_youtube.pdf
    • https://cdn.sqhk.co/xusikeko/de8gpie/88902636331.pdf
    • http://miromawetibikew.mywebcommunity.org/vawixupezisosefosojuxaf.pdf
    • https://cdn-cms.f-static.net/uploads/4392658/normal_603a5774b98dd.pdf
    • https://static.s123-cdn-static.com/uploads/4381541/normal_5ff4d1416b120.pdf
    • https://cdn.sqhk.co/wepurodapike/AhjOLEd/free_printable_alphabet_matching_cards.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://mugazukadum.onlinewebshop.net/absorption_chillers_and_heat_pumps_second_edition.pdf
    • https://uploads.strikinglycdn.com/files/b607d4a7-2703-412f-8e3c-0f14cd7e7707/nimomavisopunavilatipu.pdf
    • http://jokajejuti.atwebpages.com/lipid_metabolism_book.pdf
    • https://uploads.strikinglycdn.com/files/c81627bc-a105-49b5-971f-06ad38bbb217/fisher_paykel_refrigerator_red_light_flashing.pdf
    • https://uploads.strikinglycdn.com/files/b2891843-e30a-4f20-84c9-fa8e1e85c37e/3747707514.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f466.bin
db9f7932452e479f645154cc3b18548e3113c4a0227c425e3c171394589f4ee1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF466 5236 bytes
font_01_sfnt_off00010630.bin
19355329fb9a2383b10f99200f3af852e9f5992b64909d86f0cc645062572079		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10630 11996 bytes
font_02_sfnt_off00012f1f.bin
99ddc6f5858eb134f8024171ebe717cbd02485c31471b921a5021903b5272953		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12F1F 16060 bytes

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