Malicious PDF — malware analysis report

Static analysis result for SHA-256 7632d77fe28ab653…

MALICIOUS

PDF

71.1 KB Created: 2021-03-10 06:21:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d47a34353fdbc3c725e2c7c3abb8e0bb SHA-1: e16f43a2463d4ce95bb8e4deacf993bc1e683cdd SHA-256: 7632d77fe28ab65354b706324bbf5fa091af3c2e60989f5b52955aedc43c434c
96 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with one specifically pointing to a suspicious domain related to an 'award'. ClamAV detection and ML classification strongly indicate maliciousness. The presence of embedded URLs suggests the document is designed to redirect users to malicious content, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jumiwimov.ru/award?keyword=sota+omoigui+s+anesthesia+drugs+handbook+pdf
    • https://womovenurobo.weebly.com/uploads/1/3/1/8/131872055/ad38e7.pdf
    • http://duzegotola.medianewsonline.com/75413302110.pdf
    • https://cdn.sqhk.co/zewezerezi/Pjc6wHG/telivapajek.pdf
    • http://wejowadizabudex.mypressonline.com/10721762410.pdf
    • https://static.s123-cdn-static.com/uploads/4408990/normal_5ffc20ccaa098.pdf
    • https://static.s123-cdn-static.com/uploads/4450417/normal_5fdeeb9b40148.pdf
    • https://cdn.sqhk.co/numavagoko/gHtijic/nanozu.pdf
    • https://rebavunegiluzu.weebly.com/uploads/1/3/4/4/134497465/velarupodadelokojis.pdf
    • https://cdn.sqhk.co/fumodolanes/BiiOidz/81112837242.pdf
    • https://cdn-cms.f-static.net/uploads/4459621/normal_600dd06cccf7b.pdf
    • http://noxesim.iblogger.org/android_tablet_pubg_mobile.pdf
    • http://fejugutafilevin.scienceontheweb.net/nutelabito.pdf
    • https://neverazu.weebly.com/uploads/1/3/4/9/134901342/tubime-jisefilovinovuf-xuzafimebafif.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://varebifadilo.epizy.com/android_developer_jobs_in_mumbai_for_freshers.pdf
    • https://uploads.strikinglycdn.com/files/225223a3-27bd-46e4-9e18-5e73d58b4be4/romeo_julieta_cigars_mini.pdf
    • https://uploads.strikinglycdn.com/files/e39f8ad1-fde1-4a5d-8b12-ecc8ccfeba37/how_did_taylor_swift_get_her_start_in_the_music_business.pdf
    • https://uploads.strikinglycdn.com/files/334014ba-7143-4d6c-b221-9b84f9f2f37e/61858428320.pdf
    • https://uploads.strikinglycdn.com/files/fb07e70f-a486-4fe0-a8fb-d2dcd100cc9b/are_any_aa_meetings_open.pdf
    • http://numaxap.epizy.com/ralph_waldo_emerson_books_in_tamil.pdf
    • http://kibozitasosisan.epizy.com/saitek_x52_pro_profiles.pdf
    • http://kimanaw.epizy.com/nutrition_in_taco_bell_mild_sauce.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_off0000d8bf.bin
153930b1708c1e294dd890a8c79c30ab67de3e84b4dbab62df6491ed96e26a44
pdf-font-stream PDF embedded font (sfnt) at offset 0xD8BF 5728 bytes
font_01_sfnt_off0000ec0c.bin
b0027693a89c6a6e0a28f98f3dee0b654e28985981ec02ae0591a11394174483
pdf-font-stream PDF embedded font (sfnt) at offset 0xEC0C 10268 bytes