Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5eae63d59039bff…

MALICIOUS

PDF

81.5 KB Created: 2021-03-15 10:12:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 7c0552facfffcdd02a728746c6f4e113 SHA-1: 5352efa16b55d8877611d1fb1d9fe0c705a26749 SHA-256: f5eae63d59039bffc5bf77ad6f390658090689af34ca95d852b8bf1ce2239183
126 Risk Score

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 0.9993

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://botokaw.ru/wix?keyword=poulan+2150+parts+manual PDF link annotation
    • https://cdn.sqhk.co/kepilujofeje/kibiwpi/english_first_words_for_babies_and_toddlers.pdfIn PDF document text
    • https://webakutukulufu.weebly.com/uploads/1/3/2/6/132683024/kamub.pdfIn PDF document text
    • https://gebevomipo.weebly.com/uploads/1/3/0/7/130740462/5692083.pdfIn PDF document text
    • https://jajajijonox.weebly.com/uploads/1/3/1/4/131453539/b3b68cd6ace3810.pdfIn PDF document text
    • https://namikefazexu.weebly.com/uploads/1/3/1/6/131606603/fudeninijobufax_fodebofus_kavebe_gasanofa.pdfIn PDF document text
    • https://zedalikekotax.weebly.com/uploads/1/3/1/1/131163955/tukikam.pdfIn PDF document text
    • https://cdn.sqhk.co/zokuwagopole/hciIghL/wozipusus.pdfIn PDF document text
    • https://cdn.sqhk.co/fusajovogi/VidJMUw/smartio_fast_file_transfer_app_for_android.pdfIn PDF document text
    • https://cdn.sqhk.co/gubusase/mZXEgcu/snake_puzzle_instructions_step_by_step.pdfIn PDF document text
    • https://vabinori.weebly.com/uploads/1/3/4/3/134348027/notafazokunirewuz.pdfIn PDF document text
    • https://cdn.sqhk.co/gisanewat/eJo23gd/76098802866.pdfIn PDF document text
    • https://fusewexe.weebly.com/uploads/1/3/2/7/132712136/kotonobogijivomigev.pdfIn PDF document text
    • https://cdn.sqhk.co/fudimesa/TGAPvgj/us_fuel_prices_today.pdfIn PDF document text
    • https://wilukogata.weebly.com/uploads/1/3/5/3/135388132/5601691094b1dab.pdfIn PDF document text
    • https://waferipesor.weebly.com/uploads/1/3/5/3/135307907/8116054.pdfIn PDF document text
    • https://cdn.sqhk.co/vitimosugu/gggjzwI/jurassic_world_the_game_dinosaurs_over_level_40.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/bokelur/crispr_cas9_guide_rna_length.pdfIn PDF document text
    • https://s3.amazonaws.com/nawuvud/lowafuxuliwepolano.pdfIn PDF document text
    • https://s3.amazonaws.com/gogunabones/61567266378.pdfIn PDF document text
    • https://s3.amazonaws.com/kumasala/angles_inside_a_triangle_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/sojebelevenex/6576438351.pdfIn PDF document text
    • https://s3.amazonaws.com/rawesaragegugar/android_alarm_clock_app.pdfIn PDF document text
    • https://s3.amazonaws.com/tiduro/zurenoralatilibudakibe.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000100c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100C4 5416 bytes
SHA-256: 3cd5c2bbcee932dd3a6c66f0f5ac2220b72b5e15e5c5232589e8d1baa2a72d2f
font_01_sfnt_off00011324.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11324 10920 bytes
SHA-256: 278387b6ed4d025cec3c57481f459fc80bb8150cee0efe28eed53ae24ca1de43

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