Malicious PDF — malware analysis report

Static analysis result for SHA-256 073f73101fc93cfb…

MALICIOUS

PDF

94.7 KB Created: 2021-03-11 03:25:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f25a3e99b84df9f54e2dc4f88b1100fa SHA-1: 6e3571607642c115d8db3258ffc7f229a812b496 SHA-256: 073f73101fc93cfb8abbaadf9fc617903be51969dcedbfd98b72e62ccb320a9d
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an embedded URL that directs users to a suspicious domain, likely to host further malicious content or phishing pages. The document body, though partially corrupted, suggests a lure related to a scholarship form, aligning with phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

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://golowaki.ru/123?utm_term=b+tech+scholarship+form+last+date+2019
    • https://cdn.sqhk.co/pixorabuzep/1Uied5A/69675296026.pdf
    • http://lovechat24.club/cara_template_ppt_baguswnz8g.pdf
    • https://cdn.sqhk.co/mexovaru/8tZdX8t/kebagenagoladito.pdf
    • http://vobonenagixavus.66ghz.com/83046132304.pdf
    • http://samozanyat.info/19391832148dgb2k.pdf
    • http://tadunikij.22web.org/80557102013.pdf
    • http://tapadobav.iblogger.org/adobe_reader_ubuntu.pdf
    • http://derilezin.sportsontheweb.net/geometric_algebra_physics.pdf
    • https://cdn.sqhk.co/busumodofu/qhggeif/87147385180.pdf
    • http://jumpfs.space/what_is_a_free_verse_in_literaturefltin.pdf
    • http://zokumujanuni.iblogger.org/54007713734.pdf
    • https://cdn.sqhk.co/dapalufited/Aihggja/51272599120.pdf
    • https://cdn.sqhk.co/xusawikorut/fhjgj8J/mijijukogafodupasupus.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fedorahosted.org/lohit
    • https://5cbbff6b-7c47-4fbb-abda-9de5069fbc88.filesusr.com/ugd/1a89c8_ba6d001967bb48e795eb5e9884fda692.pdf?index=true
    • https://a804c8a8-fdf7-4fba-b19b-c23aecc29597.filesusr.com/ugd/a7074a_0c15446d959a4a82b53f15637dc0759b.pdf?index=true
    • http://pelebirepopo.onlinewebshop.net/80922627708.pdf
    • http://bivoxubi.epizy.com/manual_de_carreo_para_nios_gratis.pdf
    • http://donijexufenu.onlinewebshop.net/dragon_age_origins_companions.pdf
    • http://bukezodebas.onlinewebshop.net/zugononoruxes.pdf
    • https://7404da97-7fcf-4d5f-9d5f-3f8644e6773a.filesusr.com/ugd/35f767_6be797a6531842c8a74e74a5dd093d24.pdf?index=true
    • https://9c43cb74-45e3-47de-9527-fda2e8336169.filesusr.com/ugd/af0aa9_6ad35597420746888a123ec17e14f6c8.pdf?index=true
    • http://guzedero.rf.gd/46921884266.pdf
    • https://32b33340-d9da-4ef7-b3bd-a0ac5134eb71.filesusr.com/ugd/adfa6f_42a6e78034a04ab1bb5d941e5d0b3a7d.pdf?index=true
    • http://zulorokufejepa.rf.gd/59498896370.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_off000118ba.bin
f2a94e6a95a9d81b5a01b4d7a801d9590aef4eab9cd1718a059bd1740e40aa8a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x118BA 5928 bytes
font_01_sfnt_off00012cba.bin
1902a60848168beec2f9afb80023e3e9ca90b385a2d867b6a6d1dbb9af759a17		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12CBA 11332 bytes
font_02_sfnt_off00015260.bin
8ad151c043aadc4ce9c2066bdf49313792ffa258678813a4a30965f8ae3f1137		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15260 8028 bytes

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