Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa036fceeeb6b28f…

MALICIOUS

PDF

75.8 KB Created: 2021-05-19 20:11:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 06610735ae9f48e61d40b1b0e49b5ba1 SHA-1: 10ff5cf4dc0a5e670b09ddfe5a81160f8791dcf6 SHA-256: aa036fceeeb6b28f318c3173cc2ff68d07ca324869793ef6749cfa3912a63c49
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://mezovuduw.ru/strik?utm_term=the+lorax+free+google+drive PDF link annotation
    • https://gutototuwasikik.weebly.com/uploads/1/3/4/8/134876789/radagugunugov.pdfIn PDF document text
    • https://guduzuzej.weebly.com/uploads/1/3/1/6/131606672/3731976.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452171/normal_603fead0a099f.pdfIn PDF document text
    • https://vurofagulomefu.weebly.com/uploads/1/3/1/4/131452840/d383a5.pdfIn PDF document text
    • https://linabodaku.weebly.com/uploads/1/3/1/1/131164293/litozogukobejefelas.pdfIn PDF document text
    • https://nupuwumot.weebly.com/uploads/1/3/5/3/135305030/fufutojakutuper_zabogodesisox_wibajixibul_labemisubelipeg.pdfIn PDF document text
    • https://bufetijakuvarit.weebly.com/uploads/1/3/4/8/134878832/b941eda783a8f.pdfIn PDF document text
    • https://tewedarutomos.weebly.com/uploads/1/3/2/3/132302993/9198507.pdfIn PDF document text
    • https://vedabigejiko.weebly.com/uploads/1/3/1/4/131438046/tidamisawazoje-roguguwufeluni-gofuwarezawo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491933/normal_6013acbfb98a7.pdfIn PDF document text
    • https://jiwumakot.weebly.com/uploads/1/3/4/2/134235931/berujo_fojudozowuwupit_wurogolet.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/lupuvogotog/tokyo_ghoul_manga_box_set_2nd.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b78af0f7-3a96-47e5-86d5-f75b8a05709f/what_is_the_best_tv_at_costco.pdfIn PDF document text
    • https://s3.amazonaws.com/rikolesafuwofar/apink_eung_eung_song.pdfIn PDF document text
    • https://s3.amazonaws.com/gosete/rutikebixilimipofa.pdfIn PDF document text
    • https://s3.amazonaws.com/zosevid/39205656814.pdfIn PDF document text
    • https://s3.amazonaws.com/tawosutosuxi/gosekederepibur.pdfIn PDF document text
    • https://s3.amazonaws.com/sikuva/lepununigunoxexerapafer.pdfIn PDF document text
    • https://s3.amazonaws.com/jugobimuraje/70989608627.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2777989f-4103-446d-8f40-60354ecbd08c/vubixuvoledexida.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8696e6a-08ef-465c-bbab-e3e68261763e/negusemovifasarelexano.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_off0000ea7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA7C 5068 bytes
SHA-256: ab4811348a8ba570f50e8d0bdaadff6fa66fc5815ce7c0d88bb0bcf126b82133
font_01_sfnt_off0000fbbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBBB 10864 bytes
SHA-256: d0b393ce26a44418a42b62124fd1e7eaee3c8739123c43fdb14c856c8bbdee2e

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