Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d32f7298958c98e…

MALICIOUS

PDF

116.8 KB Created: 2021-02-14 22:10:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: ca97f7dd857442b4dfa480f543e39aaa SHA-1: 9db10a0e0deff88330053a3d33eaa1e8c6ded83b SHA-256: 9d32f7298958c98e05a618ac19ca9b6cceeb708b32f3ccd62ca3a8facfbf712b
156 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, as malicious and likely phishing-related. It contains a large number of external links, suggesting it functions as a link farm to redirect users to potentially malicious sites. The document body, though partially obfuscated, contains references to interview questions, a common lure for phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://druttle.ru/123?utm_term=amazon+phone+interview+questions+and+answers PDF link annotation
    • http://world-wildshop.com/cultivation_chat_group_manga1bfi5.pdfIn PDF document text
    • http://copyrightsafetyhelps.com/naruto_opening_7_hdx40j8.pdfIn PDF document text
    • http://titanof-filtr.ru/core_java_interview_questions_for_fresher8fj3k.pdfIn PDF document text
    • http://ch-redirect.icu/113276957654agk2.pdfIn PDF document text
    • http://hookup154.space/3194612643753aum.pdfIn PDF document text
    • https://cdn.sqhk.co/wefenosefob/ggf1qif/66290077943.pdfIn PDF document text
    • https://cdn.sqhk.co/xagaxubibiz/ijhhNNl/44571668195.pdfIn PDF document text
    • https://jibizixowaxen.weebly.com/uploads/1/3/5/2/135296653/a7b68a64f39f6.pdfIn PDF document text
    • https://cdn.sqhk.co/moxoxitij/jcnHhex/video_call_from_cartoon_cat_at_3am.pdfIn PDF document text
    • http://requiredjokblog.com/google_sheets_balance_sheet_templateh23vv.pdfIn PDF document text
    • https://cdn.sqhk.co/rajosibakulu/L7jhjjd/radio_fm_app_free_download.pdfIn PDF document text
    • http://rimka.xyz/10533372375ir8e7.pdfIn PDF document text
    • https://pevaluxuduta.weebly.com/uploads/1/3/4/5/134502983/witagujerozufifopa.pdfIn PDF document text
    • https://ralawuxageg.weebly.com/uploads/1/3/4/3/134319431/viminexixokigezigosa.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/pilazi/mosazudizodoroxiba.pdfIn PDF document text
    • https://s3.amazonaws.com/tinivukedeta/businessman_telugu_movie_songs_video_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/muwomapotumugi/17855501389.pdfIn PDF document text
    • https://s3.amazonaws.com/megulu/15814134786.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxexi/33058010225.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_off00018c20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18C20 5484 bytes
SHA-256: e782844becb51d31c67b3f018bd6b13b6092ed5e88d9d0824369289c679291e2
font_01_sfnt_off00019eae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19EAE 11440 bytes
SHA-256: adb7428c05d30434f3f16d94e3f7a4a2247f4916db1d4d4cfaf0f6a0d0f95eb8

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