Malicious PDF — malware analysis report

Static analysis result for SHA-256 430503133dc4725d…

MALICIOUS

PDF

113.1 KB Created: 2021-04-18 11:19:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 894a3bb9bf1ec358d77bbc54d2228a51 SHA-1: 62a9764640572e8f0537bd368bf83b2cf8e378b2 SHA-256: 430503133dc4725d96bd888ba981acee63529ef7e467e9b7466ee4ac5ded9964
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, specifically identified 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 truncated, suggests a lure related to 'how to make a folder on dish hopper', which is likely a pretext to disguise the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://baarspo.ru/strik?utm_term=how+to+make+a+folder+on+dish+hopper
    • https://cdn.sqhk.co/xugiwatokax/pZ1X7kb/cake_shop_2.pdf
    • https://cdn.sqhk.co/tiluzegata/hj6haHJ/slither_battle_game.pdf
    • https://cdn-cms.f-static.net/uploads/4419633/normal_60508e8aa2f99.pdf
    • http://tricitysikhs.com/potepabefiibpf8.pdf
    • https://cdn.sqhk.co/wafepazi/jdXOhaP/konokaxari.pdf
    • https://cdn-cms.f-static.net/uploads/4389823/normal_602056c6b7c22.pdf
    • http://neyroskakalka.site/16137032234u8gv5.pdf
    • http://sewukagazub.mypressonline.com/gubabuzut.pdf
    • http://tusapet.iblogger.org/babasaheb_ambedkar_image.pdf
    • http://nuxefigemotak.22web.org/34582547262.pdf
    • http://mufinofol.scienceontheweb.net/calculus_3rd_edition_strauss_bradley_smith_download.pdf
    • https://cdn-cms.f-static.net/uploads/4370268/normal_603426a320bbd.pdf
    • https://cdn-cms.f-static.net/uploads/4497353/normal_6049a0867798c.pdf
    • http://vikunokanafigul.66ghz.com/medical_certificate_format_for_central_government_job.pdf
    • http://bionatur.space/search_by_image_from_android_phoneyc7nz.pdf
    • http://juwoniki.getenjoyment.net/senini.pdf
    • http://prizinsta.site/employee_training_plan_template_in_excelaqhrt.pdf
    • https://cdn.sqhk.co/nadetajagupe/Vgcjdc3/burgerology_menu_brunch.pdf
    • https://cdn.sqhk.co/wejafivelij/cggi2mo/blue_bunny_caramel_apple_popsicles.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://saxarivoje.onlinewebshop.net/15882397019.pdf
    • https://s3.amazonaws.com/betefowubevat/little_house_on_the_prairie_season_5_episode_3_cast.pdf
    • https://s3.amazonaws.com/faxaxos/44604776082.pdf
    • https://s3.amazonaws.com/xofalepelala/shiv_bhakti_ringtone_2019.pdf
    • https://s3.amazonaws.com/najipavez/29824773881.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_off00017b6e.bin
67c871cb50b3be60466477230436083f644e349343a60e3f1831af912352b75b
pdf-font-stream PDF embedded font (sfnt) at offset 0x17B6E 5396 bytes
font_01_sfnt_off00018dab.bin
a1a81e6846735e04c57d58526b1e2df737ecebde674bd7dfef9a32eeaddc76a7
pdf-font-stream PDF embedded font (sfnt) at offset 0x18DAB 12020 bytes