Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc7b80a1fb20d996…

MALICIOUS

PDF

70.6 KB Created: 2021-03-05 06:12:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 20cb41a3f10d75be3b2fd3d5a2c01fba SHA-1: 3594820d13ef801ebccba5b5d01f5757b25519c0 SHA-256: fc7b80a1fb20d996fd27b2ab312c469b9716a828899e49efd3ca0ae0a7f11c95
96 Risk Score

Malware Insights

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

The file is a PDF document identified as malicious by ML classifiers and ClamAV. It contains an embedded URI pointing to a suspicious domain, suggesting an attempt to redirect the user to a malicious site. The document body, though heavily obfuscated, appears to be a lure related to 'Vfr sectional map legend', likely to trick users into clicking the malicious link. No scripts were extracted, but the presence of external URIs and the overall classification indicate a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://xezojetit.ru/award?keyword=vfr+sectional+map+legend PDF link annotation
    • https://cdn.sqhk.co/zuvibabezel/nbUyif9/sling_no_longer_offering_free_trial.pdfIn PDF document text
    • https://cdn.sqhk.co/geroterunetu/je1riiD/extreme_super_car_driving_1_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/mojuzizimu/iijijjb/borreload_furious_dragon_yugioh_espanol.pdfIn PDF document text
    • http://juzufezike.mygamesonline.org/how_to_make_a_insurance_claim_with_sprint.pdfIn PDF document text
    • http://werikipirojenob.scienceontheweb.net/viporusitisixon.pdfIn PDF document text
    • https://cdn.sqhk.co/nalawanuxa/ejagh1B/kitidel.pdfIn PDF document text
    • http://vulufinagi.mypressonline.com/xiwaboxiwoxetuwawejiki.pdfIn PDF document text
    • https://cdn.sqhk.co/lasanamemego/Uhigcie/nfl_schedule_week_12_picks.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/voxazedisula/gru_meme_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b31fa6e1-e2e5-4b80-81a7-588aa04eef5f/rexad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/516ed270-202a-4c1a-a503-b868febd9d2a/4413768748.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxuledo/55815967444.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/45b52acc-db82-4aab-a20a-1a420e8825c6/all_american_pressure_canner_model_930_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/veledabejufi/baghban_full_movie_with_english_subtitles.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5da4de3b-b8ef-4194-a138-1ce146d6b98a/best_classic_country_ballads.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/42306d27-0612-4790-a88a-00fd9fa7db29/why_animal_flow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1cf2db39-3e95-44cb-9703-bce76bcee76a/33823423304.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95c41fe6-0212-493e-90b6-d34a2735a5a7/list_of_all_important_run_commands_for_windows.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba6c1141-5826-4539-af0c-d9beaa757fcf/jenenadobixo.pdfIn PDF document text
    • https://s3.amazonaws.com/kexamoxusinixu/bollyshare_net_bollywood_movies.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/54e590ce-a611-4143-8465-6c881fe2c152/sears_kenmore_elite_washer_and_dryer_combo.pdfIn PDF document text
    • https://s3.amazonaws.com/timeziso/monofakuwivovazutirom.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d4ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4AD 5440 bytes
SHA-256: 2709ab3b0d98a0117b93c6ec61f82a95c6abc0b9da8e3e5f213c8fd5a3cd202a
font_01_sfnt_off0000e721.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE721 11220 bytes
SHA-256: 93d5e5b8c92af5959710eec0288deb3362e3101def32af32b365beace87c582b

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