Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9150860e3388a00…

MALICIOUS

PDF

77.0 KB Created: 2021-02-10 01:19:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: 25ee02c754792519901fc726f54373ca SHA-1: 55d36fabadffaf3ea4026f03c0574418d5e7993c SHA-256: d9150860e3388a00d1cdcd847c476325ef1da96ee5f6145b230683cb1b478cc6
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, masquerading as a legitimate policy template. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. While no scripts were directly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site.

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://baarspo.ru/aws?utm_term=hardware+asset+management+policy+template PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4449183/normal_5fe81323d5873.pdfIn PDF document text
    • https://cdn.sqhk.co/naxenunovus/chii9jb/healthy_vegan_snacks_for_weight_loss.pdfIn PDF document text
    • https://cdn.sqhk.co/ramowejub/jaijMia/deul_classic_ragdoll_shooter.pdfIn PDF document text
    • https://cdn.sqhk.co/resilano/jfGo0W7/nujojaneboraxepuwiba.pdfIn PDF document text
    • https://cdn.sqhk.co/kitujesijak/fihsgfr/gun_idle_mod_apk_ios.pdfIn PDF document text
    • https://cdn.sqhk.co/tesigasefaxe/gdhilo6/funny_chicken_crossing_the_road_jokes.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482215/normal_60127d578e607.pdfIn PDF document text
    • https://cdn.sqhk.co/musutalivun/hpGB4gi/sonic_the_hedgehog_2_movie.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496818/normal_601a42cf49c6e.pdfIn PDF document text
    • https://cdn.sqhk.co/fipufose/gimQhhJ/word_blitz_messenger_hack.pdfIn PDF document text
    • https://cdn.sqhk.co/vewimidipiv/iYYLUid/32493750039.pdfIn PDF document text
    • https://cdn.sqhk.co/vovewotutal/bgcjij7/96085703992.pdfIn PDF document text
    • https://cdn.sqhk.co/xutazazo/kOrQigC/36569466168.pdfIn PDF document text
    • https://cdn.sqhk.co/kovixileta/hbhbijG/scruffy_dog_book.pdfIn PDF document text
    • https://cdn.sqhk.co/bexamajuw/4iXhfji/sozoxugameduzajiko.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421040/normal_5ffea2eb9da11.pdfIn PDF document text
    • https://cdn.sqhk.co/felinavaw/oieGadW/93420310908.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/towakog/animelo_summer_live_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/gurowozenupifi/15825651735.pdfIn PDF document text
    • https://s3.amazonaws.com/wazotojemov/tufoxozowugixovukipesowe.pdfIn PDF document text
    • https://s3.amazonaws.com/pukaridimupo/aagadu_tamil_dubbed_movie_in_tamilrockers.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dc56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC56 5336 bytes
SHA-256: 686e83570677529488ec5d801d4ea936b20b8dae3327a7171cb03df2a4903513
font_01_sfnt_off0000ee72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE72 13008 bytes
SHA-256: 320590f5c0c7ad504c6a8e9dddb47139d320293a29b332b7ddf56b698186d8f5
font_02_sfnt_off0001185e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1185E 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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