Malicious PDF — malware analysis report

Static analysis result for SHA-256 88d769658601e33b…

MALICIOUS

PDF

67.2 KB Created: 2021-03-11 01:58:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f54fa364169273ff80f1ddeb633336c6 SHA-1: 32d5d1cb14841cca54b984d628bb7c8446ea5f94 SHA-256: 88d769658601e33b3801cf6e71ebb0538095e5396c9ac2ea462123f5525ae812
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL pointing to a suspicious domain, likely intended to redirect the user to a phishing site. The document body, though heavily obfuscated, appears to be a lure related to 'Tipos de lineas en ingles'. No scripts were extracted, but the presence of an external URI and the overall detection profile strongly suggest a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://seumenha.ru/wix?keyword=tipos+de+lineas+en+ingles
    • https://wefogazasu.weebly.com/uploads/1/3/4/8/134880183/jaworabafoseturuz.pdf
    • http://ligugiban.scienceontheweb.net/john_deere_lawn_tractor_blades_wont_engage.pdf
    • https://cdn.sqhk.co/gabixeme/Zidqjco/spades_plus_free_online.pdf
    • http://lologunaw.mygamesonline.org/low_histamine_anti_inflammatory_diet.pdf
    • https://cdn-cms.f-static.net/uploads/4407813/normal_6036c6ad468ae.pdf
    • http://miwasigal.mywebcommunity.org/how_dangerous_are_reticulated_pythons.pdf
    • https://cdn-cms.f-static.net/uploads/4418399/normal_6019125bd88da.pdf
    • http://ramuwesitavoz.mywebcommunity.org/19412504866.pdf
    • https://cdn.sqhk.co/waxigapo/gg4iaii/48676884656.pdf
    • https://fajupumivut.weebly.com/uploads/1/3/4/1/134108914/5929183.pdf
    • https://cdn-cms.f-static.net/uploads/4472506/normal_604009e075a00.pdf
    • https://cdn-cms.f-static.net/uploads/4446166/normal_5fe7f0665732d.pdf
    • http://sewototenovaro.iblogger.org/60076879620.pdf
    • https://static.s123-cdn-static.com/uploads/4375889/normal_5ff14be2c5397.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://suwojubomitela.epizy.com/17100311952.pdf
    • http://diwisowaf.rf.gd/sinokewixaxomupiwakobi.pdf
    • http://sujetokotew.rf.gd/g_shock_5081_battery_replacement.pdf
    • http://sagoxexo.epizy.com/the_power_of_prayer_and_fasting_dr_myles_munroe.pdf
    • http://lixugafepujijoj.onlinewebshop.net/seth_rollins_net_worth_2019_forbes.pdf
    • http://puteroxono.epizy.com/41549565406.pdf
    • http://giwofigu.epizy.com/8989194941.pdf
    • http://mavoweba.epizy.com/aadukalam_songs_free_masstamilan.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_off0000ca75.bin
f83edabfac022eb2d28c95144a3bd62df59f485e1f911fde4a9e03cfd8442ebb
pdf-font-stream PDF embedded font (sfnt) at offset 0xCA75 4980 bytes
font_01_sfnt_off0000db7a.bin
05b63117aeed7a6cfb4424b95edcbaa39ad716f9e8901d6ce46550eeecb711a6
pdf-font-stream PDF embedded font (sfnt) at offset 0xDB7A 10636 bytes