Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7ab2d3785d6a72a…

MALICIOUS

PDF

77.4 KB Created: 2021-04-10 22:12:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c0a83a73996a3a911aa37e7f7eecc847 SHA-1: c6503cf556bc9b212030a078c397c097dc3f357b SHA-256: d7ab2d3785d6a72a6c357cde9675520197f19bc1c1512a2c1b01122a17985f97
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to exploit users by redirecting them to malicious content.

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://pelibifir.ru/strik?utm_term=why+is+my+sewing+machine+running+slow
    • https://cdn-cms.f-static.net/uploads/4485569/normal_603f5c9cb65bb.pdf
    • https://static.s123-cdn-static.com/uploads/4498376/normal_5fcf452ef13c0.pdf
    • https://cdn-cms.f-static.net/uploads/4375073/normal_605482f01df64.pdf
    • http://instofficial.online/juventus_fc_roster_2020jutjs.pdf
    • http://ighelperscenter.com/formato_del_diagrama_bimanual_en_blancotzcpv.pdf
    • https://cdn-cms.f-static.net/uploads/4464524/normal_602b2caf9365d.pdf
    • http://trysoda.club/jetebaremoxavufanuxajeguprx9ye.pdf
    • http://koolmaxt.online/kunabutovadibanapixifaw41bx.pdf
    • http://liketime.online/grundig_s450dlx_wont_turn_onsbldp.pdf
    • https://static.s123-cdn-static.com/uploads/4408594/normal_5feefa0a75fec.pdf
    • https://cdn-cms.f-static.net/uploads/4489587/normal_6035a39f1720f.pdf
    • http://kwini-fini.online/samsung_bn59_codesznra6.pdf
    • http://grizhoff.ru/vumibevonojgs4lg.pdf
    • https://static.s123-cdn-static.com/uploads/4485705/normal_5ff76d89e865e.pdf
    • https://cdn-cms.f-static.net/uploads/4413474/normal_603605dbb0efa.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/dacf4d6d-4976-45f3-a718-9b755ccb9e1c/how_to_breed_the_pokemon_you_want_in_a_den.pdf
    • https://uploads.strikinglycdn.com/files/d28bb640-3e00-406c-a76e-5360f6639faf/kagijasonilujesidadiseza.pdf
    • https://s3.amazonaws.com/pirofopafu/dragon_ball_z_games_for_android_offline.pdf
    • https://uploads.strikinglycdn.com/files/6f415633-94e0-41b7-ae6d-cb8a7ef3060e/what_does_tree_of_life_jewellery_meaning.pdf
    • https://uploads.strikinglycdn.com/files/8c92dc88-142c-4b4f-8f85-440ef5c4ce94/56397280694.pdf
    • https://s3.amazonaws.com/liwara/blood_relationship_tricks.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_off0000f0a4.bin
388592fd37759a957175e714ae0e0b22651c67e9c16ee5dca984177f72596ee5
pdf-font-stream PDF embedded font (sfnt) at offset 0xF0A4 5420 bytes
font_01_sfnt_off00010309.bin
48cc66d713ed5a3c5abd5e2f6cc074416515d117a04ae91b1ed0bc84286cebf8
pdf-font-stream PDF embedded font (sfnt) at offset 0x10309 10536 bytes