Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccd1a12284a19e4e…

MALICIOUS

PDF

74.7 KB Created: 2021-02-25 17:48:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 86001488a7189131cce52b1cc123d812 SHA-1: 48ba9459fc41db3349d86e9bebae585226765fab SHA-256: ccd1a12284a19e4e480a5bca75ed7c3c117a4acddd45b8296b383b5c2a5690ed
96 Risk Score

Malware Insights

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

The file is a PDF document flagged as malicious by ML classifiers and ClamAV. It contains an embedded URI pointing to a suspicious domain, suggesting a phishing or malware distribution attempt. The document body is heavily obfuscated and appears to contain metadata rather than user-readable content, reinforcing the malicious intent.

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://seumenha.ru/wix?keyword=crafting+writs+eso
    • https://cdn-cms.f-static.net/uploads/4413718/normal_602c48cf4ef3f.pdf
    • https://cdn-cms.f-static.net/uploads/4446489/normal_6013c0df5f6a6.pdf
    • http://wadixokup.22web.org/76109131531.pdf
    • https://cdn-cms.f-static.net/uploads/4374853/normal_600c8af240380.pdf
    • https://cdn.sqhk.co/bitizulokiva/KvMgcid/digital_marketing_jobs_london_part_time.pdf
    • http://penageli.getenjoyment.net/sex_education_season_2_imdb_parents_guide.pdf
    • https://cdn-cms.f-static.net/uploads/4497358/normal_601badd58ab08.pdf
    • https://cdn.sqhk.co/jujifefa/WhccOAd/flippy_knife_hack_apk_2020.pdf
    • https://cdn-cms.f-static.net/uploads/4416153/normal_602b023cd73b4.pdf
    • https://static.s123-cdn-static.com/uploads/4387229/normal_6000a9a2c137a.pdf
    • https://cdn-cms.f-static.net/uploads/4476601/normal_6027e2b77d542.pdf
    • http://tazaled.22web.org/zatavupotudog.pdf
    • http://lofajemami.sportsontheweb.net/western_digital_wd_tv_hd_media_player_firmware.pdf
    • https://cdn.sqhk.co/xuxawexa/gdgjieR/galaxy_entertainer_code.pdf
    • http://kesuvajeb.scienceontheweb.net/missouri_charge_code_304.010.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://lodusebivepakef.epizy.com/how_long_is_pge_power_outage_going_to_last.pdf
    • http://nipesuvaz.epizy.com/xobibadataj.pdf
    • http://xilorevej.epizy.com/celebration_hymnal_song_list.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_off0000ea88.bin
968c2561fe7ff389e55f07962e6d3008ec513c4e6502ba65d0458b644b16d152
pdf-font-stream PDF embedded font (sfnt) at offset 0xEA88 4900 bytes
font_01_sfnt_off0000fb56.bin
3e4b35f0e69016c55e451c97a7523fd024fcb4c57e5cfa4ff2fd96a97512e5af
pdf-font-stream PDF embedded font (sfnt) at offset 0xFB56 10316 bytes