Malicious PDF — malware analysis report

Static analysis result for SHA-256 44078373fad20c2f…

MALICIOUS

PDF

74.3 KB Created: 2021-03-15 23:32:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7001c9109335ad5982235152cb84c09d SHA-1: 70c22c05f4d19391fa4b7657cf883a691fdbe332 SHA-256: 44078373fad20c2f84c2a952860a46bac27d447165901aa6e84c9a2bc829adca
96 Risk Score

Malware Insights

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

The PDF 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. Although no scripts were explicitly extracted, the presence of an external URI suggests the document's purpose is to redirect the user to a malicious site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://soxebez.ru/wix?keyword=geometry+chapter+1+vocabulary+word+search+answers
    • http://pidijajuwupurop.medianewsonline.com/jimimuduvivu.pdf
    • https://cdn.sqhk.co/bebomopakax/XhfJjf3/two_piece_stacked_leggings_set.pdf
    • https://cdn-cms.f-static.net/uploads/4393647/normal_601e3424a48dc.pdf
    • https://mapavafamaluri.weebly.com/uploads/1/3/5/9/135999294/dijujalaj.pdf
    • http://luxomozuk.mypressonline.com/85385888383.pdf
    • https://cdn-cms.f-static.net/uploads/4530868/normal_602c8cfad08ab.pdf
    • https://static.s123-cdn-static.com/uploads/4469350/normal_5fca7f928a967.pdf
    • http://zawugudumi.getenjoyment.net/medicamentos_antimicoticos.pdf
    • https://cdn.sqhk.co/rifusofuwedi/pX0qfgd/15291888227.pdf
    • https://werunumugupis.weebly.com/uploads/1/3/4/3/134399568/37891.pdf
    • https://cdn.sqhk.co/bomoxale/ibEieZL/proton_bus_simulator_2020_ios.pdf
    • https://static.s123-cdn-static.com/uploads/4417808/normal_5fe3dfcea8584.pdf
    • https://zikagedatudupoz.weebly.com/uploads/1/3/4/2/134266226/maxevif_xesusomonisi_repisesajik_wizojetix.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://revodez.myartsonline.com/mezubapusokuw.pdf
    • http://jipudovisubu.rf.gd/cg_new_dj_song.pdf
    • https://uploads.strikinglycdn.com/files/985a6479-0a5c-4813-9696-d31a280c6bf7/vereragugofaxekin.pdf
    • http://zimozowamewu.epizy.com/are_porter_cable_nail_guns_any_good.pdf
    • http://xedoruvuseju.rf.gd/grey_crew_neck_template.pdf
    • https://uploads.strikinglycdn.com/files/ef719148-df9d-4569-b7b1-5081848182aa/momufozo.pdf
    • http://malebujezasipip.rf.gd/chummer_sr5_android.pdf
    • https://uploads.strikinglycdn.com/files/3210fc32-77a7-4d50-b841-9491124776bc/feviv.pdf
    • http://radujexoxetapil.epizy.com/21662527819.pdf
    • https://uploads.strikinglycdn.com/files/960b6833-efe7-4761-b689-99f78d644e90/how_to_solve_a_rubix_cube_in_2_steps_tik_tok.pdf
    • https://uploads.strikinglycdn.com/files/635e236b-1f0a-4c11-8fc1-296c7aed639b/vomozakubimekumowal.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e214.bin
69bfa62cc6a0c7aa29a8b9b3bd91586ba33ea93e12124e86710ce11e1d4c473f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE214 5792 bytes
font_01_sfnt_off0000f5bc.bin
ba1c012ffc036b8c2e194943ac92f2fef627de8f5d7a2c76b5f0e3fecbcc6bd4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF5BC 11124 bytes

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