Malicious PDF — malware analysis report

Static analysis result for SHA-256 8951183814358a91…

MALICIOUS

PDF

75.9 KB Created: 2021-01-21 00:14:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 65875901875bad0bfd3cce1417499f49 SHA-1: 67079b1a8d023c5be54e79f7290de12748144e1e SHA-256: 8951183814358a91657f9616bc68c57f1334d40acf0216cb9cfa3d22a2bf10c0
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by a ClamAV signature and an ML classifier. It contains an embedded URI pointing to 'traffking.ru', which is likely a phishing or malware distribution domain. The document body, though heavily obfuscated, suggests a lure related to '5 types of catapults wikipedia', indicating a social engineering attempt to drive traffic to the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://traffking.ru/123?utm_term=5+types+of+catapults+wikipedia PDF link annotation
    • https://cdn.sqhk.co/febowozefu/ghLDheW/32525223346.pdfIn PDF document text
    • https://cdn.sqhk.co/mezomabesoki/DS9Lhj0/bunny_boots_fairbanks_ak.pdfIn PDF document text
    • https://cdn.sqhk.co/konanetufuda/gchjgcw/castaway_bay_day_pass_groupon.pdfIn PDF document text
    • https://cdn.sqhk.co/tememukafosu/jbThdic/the_dictator_movie_restricted_trailer.pdfIn PDF document text
    • https://cdn.sqhk.co/verexoleki/icgj2jd/escape_proof_cat_harness_uk.pdfIn PDF document text
    • https://cdn.sqhk.co/kosenopelid/hiM5gg1/marvel_unlimited_subscription_promo_code.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/mawesenasijoser/17475900305.pdfIn PDF document text
    • https://s3.amazonaws.com/levumoduf/memphis_grizzlies_injury_report.pdfIn PDF document text
    • https://s3.amazonaws.com/girilifawuxi/vb._net_2017_community.pdfIn PDF document text
    • https://s3.amazonaws.com/musoxifuvitalo/indian_public_finance_statistics_2017-_18.pdfIn PDF document text
    • https://s3.amazonaws.com/bededuxotulapil/fuxemerijizifigovu.pdfIn PDF document text
    • https://s3.amazonaws.com/lomuper/afyon_kocatepe_niversitesi_teknoloji_fakltesi_staj_formu.pdfIn PDF document text
    • https://s3.amazonaws.com/defipedibe/section_8_nj_income_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/zunaduxa/suvipefelas.pdfIn PDF document text
    • https://s3.amazonaws.com/nuruvapozixix/81815746285.pdfIn PDF document text
    • https://s3.amazonaws.com/zodawanuror/mekanojibudemisivamil.pdfIn PDF document text
    • https://s3.amazonaws.com/bulolimepol/chores_app_android.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

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e830.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE830 5340 bytes
SHA-256: 24441660579e445e3a7c550ba2316a6a3ed2e8fc3397df518a74951d39cb1e17
font_01_sfnt_off0000fa92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA92 11760 bytes
SHA-256: 9d3b54672deb5a8abd27ac7925610ca94aa3ff0d4ecb538383f6d012ac0d9739

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