Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca2aa56f5e5a1be3…

MALICIOUS

PDF

79.8 KB Created: 2021-03-12 09:32:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1b0da0849adb764b4a531c2ed1cbe469 SHA-1: 75b4026f6f3c9c46ac7540d63583b91400cac810 SHA-256: ca2aa56f5e5a1be3bf5565ac21f4f6a78b43b4d0951593e59c5b2e0e604cc44c
96 Risk Score

Malware Insights

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

The PDF file contains embedded URLs that are disguised as a manual for a Craftsman radial arm saw, aiming to trick users into clicking them. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. No scripts were extracted, but the presence of external URIs suggests the document's primary function is to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://lozipotod.ru/award?keyword=craftsman+10+radial+arm+saw+manual+pdf
    • https://cdn-cms.f-static.net/uploads/4427783/normal_603332d41071c.pdf
    • http://firstflirts.site/diablo_3_crusader_thorns_build_season_18xlaay.pdf
    • https://cdn-cms.f-static.net/uploads/4459163/normal_603ab2ddb5d90.pdf
    • http://theboldpantsproject.com/naruto_blazing_jp_apkdlmodk9mys.pdf
    • http://mynasert.online/netgear_wnr3500_setup_as_repeater6ez6u.pdf
    • https://cdn-cms.f-static.net/uploads/4368501/normal_6040f2a6f326b.pdf
    • https://static.s123-cdn-static.com/uploads/4366032/normal_5febfe20754c2.pdf
    • https://static.s123-cdn-static.com/uploads/4489988/normal_5ffc633118672.pdf
    • https://static.s123-cdn-static.com/uploads/4472764/normal_5fce445ca19d7.pdf
    • https://cdn-cms.f-static.net/uploads/4496391/normal_5fe64ae4bc10e.pdf
    • http://zitupow.medianewsonline.com/automatic_pneumatic_clutch_and_braking_system.pdf
    • http://jamotovoxut.mywebcommunity.org/22922974754.pdf
    • http://jarewitof.mypressonline.com/revesidirevu.pdf
    • http://saporik.scienceontheweb.net/18505659232.pdf
    • http://dusibarupuguli.medianewsonline.com/arap_bahar_nedenleri.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://lawaxisagiwog.atwebpages.com/english_bad_words_list_with_meaning.pdf
    • http://rulamiji.onlinewebshop.net/36662547666.pdf
    • http://palelezugob.onlinewebshop.net/heat_and_mass_transfer_incropera_7th_edition.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_off0000e9fe.bin
f6b564d96651d5dcde62eeafaa160ce0a7446231380e591b7cfe2e2cf35e4243
pdf-font-stream PDF embedded font (sfnt) at offset 0xE9FE 5152 bytes
font_01_sfnt_off0000fb6d.bin
9d155af5e94dc1ee67486fbc6e05b35b2c478f7e76e4d0d813173422382b8681
pdf-font-stream PDF embedded font (sfnt) at offset 0xFB6D 12536 bytes
font_02_sfnt_off000123e2.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x123E2 4324 bytes