Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8ce83bade01359c…

MALICIOUS

PDF

77.8 KB Created: 2021-02-21 09:01:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: 20905cd46cf84248ea2c974df685f78a SHA-1: f6e1a3a7dfaaef22d93b1f14f5f98e6223a52f82 SHA-256: b8ce83bade01359c06c80e8bfb1fe40090c13bf48750c791cf8f72c86142210a
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The ML classifier also flagged this PDF with high confidence. While no scripts were explicitly extracted, the presence of external URIs and the overall detection suggest a phishing or malware delivery attempt, likely initiated via spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jottigo.ru/123?utm_term=echo+gt+225+clutch+problems PDF link annotation
    • http://endi-itali.space/nhng_tit_mc_vn_ngh_hi_hcndvpx.pdfIn PDF document text
    • http://nout-prokat.website/lucky_life_game_poki74wpj.pdfIn PDF document text
    • https://cdn.sqhk.co/givogaduta/nJhjeAL/word_around_picture_frame.pdfIn PDF document text
    • https://cdn.sqhk.co/vujenibolo/bibjcGz/uncertainty_reduction_theory_axioms.pdfIn PDF document text
    • http://doorstepcomputers.com/vexivitibersu.pdfIn PDF document text
    • https://cdn.sqhk.co/zapiseniw/SOidjix/nasacort_nasal_spray_ingredients.pdfIn PDF document text
    • http://bupetud.xyz/wolf_quest_2._7_free_download_full_versiongxz92.pdfIn PDF document text
    • https://cdn.sqhk.co/gejupajo/Z1mijI9/carx_drift_racing_lite_mod_apk_obb.pdfIn PDF document text
    • https://cdn.sqhk.co/vipujitebiki/jfRjaFp/animal_jam_classic_codes_for_diamonds_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/poxirowo/njiifq2/dragon_ball_theme_song_japanese.pdfIn PDF document text
    • https://cdn.sqhk.co/pajijolabalu/FgiZkgf/97395656879.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/zijivevip/bonnie_and_clyde_2013_full_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/widiku/fubofananujanunakoxa.pdfIn PDF document text
    • https://s3.amazonaws.com/napisakaluja/silopewalorawepak.pdfIn PDF document text
    • https://s3.amazonaws.com/bupijila/ap_chemistry_cliff_notes.pdfIn PDF document text
    • https://s3.amazonaws.com/loxopudizus/62821919654.pdfIn PDF document text
    • https://s3.amazonaws.com/fukepez/guidepoint_pharmacy_in_aitkin_minnesota.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_off0000f0f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0F8 5488 bytes
SHA-256: 76e72954c8c5fc7df0287eb2f3567560e12b61eb06447b0d46cab2db553dca40
font_01_sfnt_off00010389.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10389 12000 bytes
SHA-256: e9007e1a99e3200546ef4270f8768c2718a9cb1c0bc4fd4063877a083bf5b88b

Open this report in the interactive analyzer, or submit your own file for analysis.