Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ec0c001d17f04cf…

MALICIOUS

PDF

69.1 KB Created: 2021-03-08 19:53:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: e0fa8b585c1bf839f14162fd227adbed SHA-1: 51aff04f42f8c1a5772bd3bb48f880f56ec33e25 SHA-256: 6ec0c001d17f04cf8a9fdf18e1f3d14ba289ceddda2a88fbc72c62d2145bb3c5
126 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 numerous external URIs and is identified as a link farm hosted on disposable domains, suggesting a phishing or malware distribution attempt. The presence of embedded URLs further supports this, indicating the document's primary function is to redirect users to potentially harmful external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/123?utm_term=live+mobile+number+tracking+app PDF link annotation
    • http://lazirawolewok.getenjoyment.net/paul_laurence_dunbar_high_school_band_lexington_ky.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446168/normal_600dec479417a.pdfIn PDF document text
    • https://cdn.sqhk.co/xuvisisitinu/horDyih/vunuvotevamesa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458124/normal_6026fcaf29827.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463565/normal_603233b25a55a.pdfIn PDF document text
    • https://tunawirivam.weebly.com/uploads/1/3/1/4/131437064/vasixotaxav.pdfIn PDF document text
    • https://bexoligimes.weebly.com/uploads/1/3/4/3/134314561/tokovemix.pdfIn PDF document text
    • https://cdn.sqhk.co/nobixapo/hghIjdV/launcher_10_surface_duo.pdfIn PDF document text
    • https://xidumalebuwun.weebly.com/uploads/1/3/4/8/134894794/tisivis-tupove.pdfIn PDF document text
    • https://cdn.sqhk.co/retirifurew/h4RvFAJ/stickman_and_gun_3_mod_apk_android_1.pdfIn PDF document text
    • http://fepaporipevari.mypressonline.com/jojenusupidunodavofuduvo.pdfIn PDF document text
    • https://sokirokesavosa.weebly.com/uploads/1/3/4/9/134901907/4041971.pdfIn PDF document text
    • https://cdn.sqhk.co/giwumazusew/h4ajchj/lokicraft_2_game_download.pdfIn PDF document text
    • http://kitazixozakabu.sportsontheweb.net/how_strong_can_calisthenics_make_you.pdfIn PDF document text
    • http://tobufupevujuma.mygamesonline.org/87595134203.pdfIn PDF document text
    • http://vivekawiga.sportsontheweb.net/cual_fruta_no_engorda.pdfIn PDF document text
    • http://pifofobexaxel.mypressonline.com/nazajalopolebiwesusa.pdfIn PDF document text
    • https://cdn.sqhk.co/rifokinimito/ghejaSa/kafurotoxoxowusumi.pdfIn PDF document text
    • https://wibosopepizasu.weebly.com/uploads/1/3/4/3/134332643/2200225.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kijolitenelofon.epizy.com/thomas_calculus_instructors_solutions_manual.pdfIn PDF document text
    • http://xizokenimufewom.atwebpages.com/57831300955.pdfIn PDF document text
    • http://kikukuvikato.myartsonline.com/doziju.pdfIn PDF document text
    • http://zepumibofisi.epizy.com/what_are_your_best_qualities_interview_answers.pdfIn PDF document text
    • http://zuxeretufem.rf.gd/what_is_phantom_pregnancy.pdfIn PDF document text
    • http://bizower.rf.gd/ghost_in_the_machine_beer_ibu.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d2c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2C7 5280 bytes
SHA-256: 23d348163419db2dfd1d23a559906135e4c5d09edcf7dc74b57dc61262588cf8
font_01_sfnt_off0000e4b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4B2 9980 bytes
SHA-256: a518c9cba808cfb2674e78eeaeab8869f4d9eb37898325836301dc32fc529f10