Malicious PDF — malware analysis report

Static analysis result for SHA-256 fccaec89122184b5…

MALICIOUS

PDF

76.0 KB Created: 2021-03-22 14:38:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 698f00843624f2eeb6a20bdf5ad4baf8 SHA-1: 5a74f903d626d302d950bae3ba850a63c7dab37b SHA-256: fccaec89122184b5ad5272522d971800ac7c56843351bd813acfccf7b44cfb0a
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a phishing or trojan threat. It contains numerous embedded URLs, with a primary suspicious URL pointing to 'baarspo.ru', likely serving as a lure for users seeking information. The document body, though heavily obfuscated, suggests a deceptive pretext related to a 'guide'.

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://baarspo.ru/wix?keyword=firelands+invasion+guide PDF link annotation
    • http://rowewuxeg.getenjoyment.net/lizapimofapagubofoguxuk.pdfIn PDF document text
    • http://xilibinebosapeg.mywebcommunity.org/alcoholic_fermentation.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465255/normal_5ff28b8d36f63.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403413/normal_601011f16be62.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486356/normal_6003f6d86cafa.pdfIn PDF document text
    • http://pidawudimo.scienceontheweb.net/57678283839.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4529893/normal_602aa66b5a3c9.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/fifomi/punctuation_correction_worksheets_4th_grade.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1e337a47-0e43-4375-92c9-f1c1a17a86f5/dyson_owner_rewards_hair_dryer.pdfIn PDF document text
    • http://xemunebo.atwebpages.com/kenmore_sewing_machine_parts_manual.pdfIn PDF document text
    • http://voxagezevelog.rf.gd/bolapo.pdfIn PDF document text
    • https://s3.amazonaws.com/rexogeguxosix/naming_cyclic_hydrocarbons_worksheet_with_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1849d3fb-5c5b-497b-a808-5ab03d9ecef0/dsc_impassa_installer_codes.pdfIn PDF document text
    • http://viduzakovovamu.rf.gd/nasapuvexavilakuwosuzopov.pdfIn PDF document text
    • https://s3.amazonaws.com/nafibanefexex/anime_face_maker_go_free_mod_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f4f109c0-bb0d-4700-9282-65da763a92ba/60905909438.pdfIn PDF document text
    • https://s3.amazonaws.com/temujonuwu/fodunivejovewa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f1d144a-9ae8-44ab-8ce3-8058f7d24905/80966466095.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52f377e1-e968-46f4-940c-82d89984ae25/gaborolaj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5dd473f6-2c69-491c-ad33-e5d32d86d40f/how_to_use_walgreens_ear_thermometer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a971c0d1-44ee-4b34-ad26-898fb48cb84e/what_is_a_6.5_a1c.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_off0000ec58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC58 5008 bytes
SHA-256: 8aef6eb8107c2984326085b9c4b37a3f6800a98929e1d082ef3e490aede2c581
font_01_sfnt_off0000fd74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD74 11080 bytes
SHA-256: 12c0f52d067489e0653aca63488584e188535b124b3ed1eea50376c0e91ca9f3

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