Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd058e3b506613b5…

MALICIOUS

PDF

75.3 KB Created: 2021-03-22 00:45:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: d38ccf2d2e8204e5dbbc653f3236169d SHA-1: 839f3544e00fc90a311a2a19e4042250ba76ddd7 SHA-256: dd058e3b506613b5430781e47ed784b91a5765f8fb5f990ea655d650d9d65649
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://nipisod.ru/123?utm_term=sustainability+report+pt+indofood PDF link annotation
    • https://cdn.sqhk.co/gorokipo/bf5hdgg/discount_dining_room_sets_near_me.pdfIn PDF document text
    • http://daravto18.ru/fijijizugebifesitisifugk7rk6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484156/normal_600e8c2a73562.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416513/normal_5ff55f1bb707d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368246/normal_5fec92276fbc8.pdfIn PDF document text
    • https://cdn.sqhk.co/wexunaveb/dDgg6YX/classic_rock_songs_radio_station.pdfIn PDF document text
    • http://belkwigs.com/tom_and_jerry_willy_wonka_and_the_chocolate_factory_full_movie_download_in_hindivzgqy.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465257/normal_5fdd1e7af263f.pdfIn PDF document text
    • http://damvglaz1.xyz/zanozemelalijawigukelazdstwz.pdfIn PDF document text
    • http://pannochki-art.com/how_to_take_a_self_portrait_photographylljzm.pdfIn PDF document text
    • http://creamwalls.online/o_holy_night_piano_sheet_music_c_majorukdck.pdfIn PDF document text
    • http://getyourscore.info/is_the_acura_mdx_a_reliable_carta92g.pdfIn PDF document text
    • https://cdn.sqhk.co/busanurutar/8Hgj4M3/74429364226.pdfIn PDF document text
    • http://bcpzonasegur4viabcp.com/a_short_history_of_film_3rd_edition2xoxh.pdfIn PDF document text
    • http://fruit-citrus.space/verbal_reasoning_practice_test_11tb05x.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421061/normal_602860a39eac7.pdfIn PDF document text
    • http://idealslimitaly-official.site/danebumusinefekuzamaymdw7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://c38d9960-f3a4-46a0-b266-cfc7836dd0ed.filesusr.com/ugd/a8d9c8_7f55d1c1e13444879c9fa7adb15962c5.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/83d9dc9d-873f-41a9-b7d0-dcf2aa43cb6c/whats_the_best_early_pregnancy_test.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/41ebf40b-d5c6-4414-8c4c-f53a262f66b0/wahl_clippers_walmart_near_me.pdfIn PDF document text
    • https://6f46ab72-b8e3-4ec2-8f01-cb5d6491dab7.filesusr.com/ugd/9a120b_2431714b4b544431b524970ab5239052.pdf?index=trueIn 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 2

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_off0000e637.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE637 5380 bytes
SHA-256: 3ec9678e58ab11b89fd29a6afbf304aa745da3fa0062f219d4dd96de802d4979
font_01_sfnt_off0000f88f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF88F 11184 bytes
SHA-256: 471df6d48f386cae2d3bf051c448ecea50758b728e98b3b9cdd9891be740eafe

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