Malicious PDF — malware analysis report

Static analysis result for SHA-256 914e960b199380eb…

MALICIOUS

PDF

80.8 KB Created: 2021-03-20 21:15:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 487fdef6a52edca4e58eebc7e8276660 SHA-1: 70ae29f178f689fb480789d3ffd3de160248b540 SHA-256: 914e960b199380eb6c57b487814b6decbf510649887febf5b71a98108b0d3eb4
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

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 0.9995

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://leonvi.ru/123?utm_term=cbi+chargesheet+pdf PDF link annotation
    • http://ketaton.mywebcommunity.org/6096525370.pdfIn PDF document text
    • https://gidelusibi.weebly.com/uploads/1/3/4/0/134040719/4398cb.pdfIn PDF document text
    • https://ferugagesavisux.weebly.com/uploads/1/3/4/6/134687542/35bd762f336b34.pdfIn PDF document text
    • http://bukapim.mywebcommunity.org/deadpool_kills_the_marvel_universe_1.pdfIn PDF document text
    • http://koxelovanalimu.getenjoyment.net/xelakuzasezaxujenobujij.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/dc610fe1-bbaa-402a-a10c-3a009ce644c6/gonufu.pdfIn PDF document text
    • https://s3.amazonaws.com/xufoxorog/bed_sheets_egyptian_cotton.pdfIn PDF document text
    • https://s3.amazonaws.com/gajakelegeza/can_emotional_trauma_cause_tremors.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/55a93bea-6676-4a64-9c31-2e2fca8beb80/where_does_the_sunrise_in_the_morning.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/920c009c-647e-4e73-9de4-738ee74038d2/the_pain_is_killing_me_inside_quotes.pdfIn PDF document text
    • https://s3.amazonaws.com/lomuper/ximofubodawupuge.pdfIn PDF document text
    • https://s3.amazonaws.com/naxozelozude/kuxanowasijuwava.pdfIn PDF document text
    • https://s3.amazonaws.com/minabiwa/crafting_guide_dayz._63.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f707a9f5-988a-4f75-a8ad-19b58d6b7b9f/what_is_the_abbreviation_fp.pdfIn PDF document text
    • http://voturugivorajop.onlinewebshop.net/gejesegirut.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/062806f9-a6eb-4c14-8b42-b566976fa274/volifudizojawunawo.pdfIn PDF document text
    • https://s3.amazonaws.com/dobikasukavu/convert_decimal_to_percent_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/zalomi/synthesis_crafting_guide_poe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4868657d-d2e4-40f6-ad4b-01ec8b939efe/amana_front_load_washer_error_codes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/807e3aac-6bba-4e4a-a0f8-d27113bc25d2/how_to_find_compound_interest_rate_in_excel.pdfIn PDF document text
    • https://s3.amazonaws.com/sitok/xiaomi_a2_android_10_update.pdfIn PDF document text
    • https://s3.amazonaws.com/fixararololu/transformers_optimus_prime_wiki.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 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f141.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF141 5120 bytes
SHA-256: f04bd0fdad83da01df0e6a31589b6a62be4b153e52acac8b05cccbd36ef65145
font_01_sfnt_off000102ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102BA 10800 bytes
SHA-256: 6a06774017ad64ce8348afa0f2cde0650b2a8dd4125674f5607b2b8e0f44208a
font_02_sfnt_off0001277d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1277D 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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