Malicious PDF — malware analysis report

Static analysis result for SHA-256 30e773ed5de70841…

MALICIOUS

PDF

90.3 KB Created: 2021-04-21 03:44:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b64d21f25909f5ceb801da785e35af20 SHA-1: 58d360e197d736405035b138b8fc8eefeeed3b36 SHA-256: 30e773ed5de708413408990e0a55d5de9c2ac7f59aeedee87d6c2eeda8e82cc4
196 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV and an ML classifier, with heuristics indicating it's part of an advance-fee scam lure. The document contains an external URI pointing to a URL that appears to be related to employment queries, likely intended to entice clicks. No scripts were extracted, but the PDF structure and heuristics strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 6

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://seumenha.ru/strik?utm_term=how+much+does+zaxby%2527s+pay+per+hour
    • https://cdn.sqhk.co/fimirexuf/Sjhiihg/happy_wheels_full_version_unblocked_weebly.pdf
    • https://cdn.sqhk.co/ninivaxibab/difjbgc/android_box_google_play_services_has_stopped.pdf
    • https://cdn.sqhk.co/gojinuma/EAmNhi0/sonic_riders_zero_gravity_download_free.pdf
    • https://cdn.sqhk.co/vefapatape/P3ijjau/20166179224.pdf
    • https://cdn.sqhk.co/nemuvefik/gi0ijh3/free_animated_video_maker_for_youtube.pdf
    • https://cdn.sqhk.co/luvunugoz/hIghiSZ/my_cat_loves_potato_skins.pdf
    • https://cdn.sqhk.co/nupumusu/hccjbIc/nuvunemonatakizimanetotob.pdf
    • https://cdn.sqhk.co/kibizatududo/fyMigjZ/mr._slice_app.pdf
    • https://cdn.sqhk.co/fukafodifi/ejjzkIR/the_crusades_through_arab_eyes.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://c3a7a64c-5591-430b-94d7-c2eadfdf3523.filesusr.com/ugd/966478_6dfa6ab5df6240a28c8ae658a3bd60cd.pdf?index=true
    • https://b9ecad59-ee1c-469f-8402-ddbad3bf215f.filesusr.com/ugd/84dab8_44dbfc45f0854b26b8eb9c8d55c51836.pdf?index=true
    • https://uploads.strikinglycdn.com/files/d3dd8570-5685-40f2-9659-4b07e7c46b28/29891477725.pdf
    • https://uploads.strikinglycdn.com/files/9aec3eef-1299-4bd9-a6d3-8d8c94234303/27623806620.pdf
    • https://f8340159-69ce-4309-ac43-521e9a8475b4.filesusr.com/ugd/bc0b97_c377e1dfa08944d4a9bfef3fca54e8de.pdf?index=true
    • http://mejadub.epizy.com/62867312157.pdf
    • http://zajoneforisomi.rf.gd/bescherelle_descargar_gratis.pdf
    • https://uploads.strikinglycdn.com/files/262260b7-5a0f-4a1d-a480-9a3fa6e9b3ce/harry_potter_in_concert_germany.pdf
    • https://uploads.strikinglycdn.com/files/9ebc5669-933d-44db-acce-fb9c2d1a07a2/do_amino_acids_have_a_nitrogenous_base.pdf
    • https://uploads.strikinglycdn.com/files/02f0932e-be54-420e-a7c2-860aa951d84a/are_participation_trophies_a_good_idea.pdf
    • https://uploads.strikinglycdn.com/files/8d852b5c-83d2-43e4-baae-f43cd81d9859/gopatitivakilab.pdf
    • http://lipetefafozil.epizy.com/vivuzovi.pdf
    • https://uploads.strikinglycdn.com/files/9235eb5c-3205-48d3-b826-e60a00e4dff4/91371614646.pdf
    • https://uploads.strikinglycdn.com/files/71507665-4375-4519-ad1b-713bbb9fc112/gitumikopenopemis.pdf
    • https://4be8a7ba-6c9a-47a4-99fc-a5961b41a404.filesusr.com/ugd/132250_eb2a67623fbc42c59289e6006d4befca.pdf?index=true
    • https://0e8f88b9-656e-4b05-9cd8-8bd477f85547.filesusr.com/ugd/95b9ea_42f0a4d4a32f4037b1cc6364d7d39dbb.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_off0001204e.bin
d7572916b3a6f8eacffd81e9a5a2082342e805840a07fece493b33090dd4504d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1204E 5728 bytes
font_01_sfnt_off000133c3.bin
059dbf3df6d92fd22284ada291c06653fd0dc7c415fe532c2270ea4541a683fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x133C3 11900 bytes

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