Malicious PDF — malware analysis report

Static analysis result for SHA-256 63abdad34fec3904…

MALICIOUS

PDF

75.2 KB Created: 2021-03-28 18:21:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cf302f241d6d4414a6b87146aaf276b3 SHA-1: da363fc6f032e55a57d7b8c7e294e100c7261a6c SHA-256: 63abdad34fec3904340a5b08f992294482ff3af67798466cbae5f873fb161c6e
136 Risk Score

Malware Insights

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

The PDF document contains heuristics indicating an advance-fee scam lure, presenting itself as information related to finding a coroner's report. It embeds external URLs, one of which is `https://pelibifir.ru/aws?utm_term=how+to+find+a+coroner%2527s+report+uk`, likely to redirect the user to a malicious site. While no scripts were explicitly extracted, the presence of PDF-specific heuristics and embedded URLs strongly suggests a phishing or scam attempt, aligning with the 'Spearphishing Attachment' technique.

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
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://pelibifir.ru/aws?utm_term=how+to+find+a+coroner%2527s+report+uk
    • http://vizilamu.22web.org/10262458160.pdf
    • http://mowopuxufifug.22web.org/calculus_early_transcendentals_2nd_edition.pdf
    • http://003-center.ru/how_much_is_a_box_of_joe_at_dunkinc665z.pdf
    • http://aicberg.net/82483060916whrd7.pdf
    • https://cdn-cms.f-static.net/uploads/4418575/normal_603733d068195.pdf
    • http://converstarget.ru/payaliya_bajni_lado_piya_song_audioqcmbo.pdf
    • http://doctora.club/polycab_ht_cable_catalogue19k5y.pdf
    • http://xurivikarode.iblogger.org/fotolarogowe.pdf
    • https://static.s123-cdn-static.com/uploads/4479707/normal_60081a01ad5c6.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/degisapemifa/app_bp_check.pdf
    • https://uploads.strikinglycdn.com/files/4eb112da-7902-42e0-9f33-451c866df760/something_like_this_lyrics_nightcore.pdf
    • https://s3.amazonaws.com/setikizo/bullet_raja_full_movie_free_720p.pdf
    • http://melotaroluna.epizy.com/100_benefits_of_speaking_in_tongues.pdf
    • https://s3.amazonaws.com/fuzafuzeruwit/masexefakalebiweji.pdf
    • https://s3.amazonaws.com/sepovutapakogaf/52136631366.pdf
    • https://s3.amazonaws.com/bokexizometun/xejewarok.pdf
    • https://uploads.strikinglycdn.com/files/ab6fc433-5481-41f7-9c32-84775cdd21e2/ukulele_chords_songs.pdf
    • https://s3.amazonaws.com/fizup/anganwadi_online_form_2018-_19_up.pdf
    • http://vujofif.epizy.com/water_utility_billing_software.pdf
    • https://s3.amazonaws.com/xumakomowi/8018753820.pdf
    • https://uploads.strikinglycdn.com/files/a9243614-9e43-4389-8e7c-57131d75e9f3/44893193416.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e452.bin
e8c57925d7d7d5a798fe7588359e63f22bbbbace589ee087a018bca05260d936		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE452 5268 bytes
font_01_sfnt_off0000f66c.bin
9fe88737c2a3b365fc1c240eaef5b5fd27acff72843705c5e29aa7dfeba22d64		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF66C 12144 bytes

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