Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e4e49fe85564484…

MALICIOUS

PDF

100.7 KB Created: 2021-05-13 23:58:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b7769bfc89b6ab32f051bd22d513826e SHA-1: dd4a7905d23fddd2dfa525442c3d851a38376760 SHA-256: 6e4e49fe855644847db18955cd195c1f7b80c9ccde58a0023005cb1f4118cd65
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier. It contains an embedded URL that leads to a suspicious domain, likely intended for phishing or malware distribution. The document body, though heavily obfuscated, appears to be related to a movie search query, suggesting a social engineering lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://ponafet.ru/strik?utm_term=around+the+world+in+eighty+days+movie+youtube
    • https://cdn-cms.f-static.net/uploads/4444644/normal_60230c6101925.pdf
    • https://static.s123-cdn-static.com/uploads/4405443/normal_5febe68175863.pdf
    • http://help-nanny.site/ielts_reading_strategies_rachel_mitchellqbno8.pdf
    • https://cdn-cms.f-static.net/uploads/4393359/normal_6020c73820150.pdf
    • http://arfeshome.com/how_to_unstick_a_furnace_pressure_switchteedy.pdf
    • https://cdn-cms.f-static.net/uploads/4403684/normal_601585779feac.pdf
    • https://static.s123-cdn-static.com/uploads/4368222/normal_6006ec4dafafd.pdf
    • https://cdn-cms.f-static.net/uploads/4384817/normal_600eb431229a2.pdf
    • https://cdn.sqhk.co/navimoxa/ieCrjbL/10518103470.pdf
    • https://cdn.sqhk.co/rinugezig/9Tnjh0p/space_armada_galaxy_wars_apk_mod.pdf
    • http://moneyindia.site/why_are_there_chinatownsrvhf0.pdf
    • https://cdn.sqhk.co/reteletofi/zBRgfhc/sinujorukusajosipeted.pdf
    • https://cdn.sqhk.co/falugojafat/kjcieKv/ringtones_for_iphone_11_free.pdf
    • https://cdn-cms.f-static.net/uploads/4454043/normal_60364f8c12f64.pdf
    • http://awpmode.com/nobadizinagulukp5iy.pdf
    • https://cdn-cms.f-static.net/uploads/4505358/normal_604ad9e4ea145.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/gixawetopoli/what_god_wants_for_christmas_lyrics.pdf
    • https://uploads.strikinglycdn.com/files/1a2993e3-702c-4eb7-848f-44ae7ca41a4d/zixis.pdf
    • https://s3.amazonaws.com/gomaxod/jorarezob.pdf
    • https://s3.amazonaws.com/dalava/sewisasodabedoti.pdf
    • https://uploads.strikinglycdn.com/files/09ea9e2b-510a-47d2-837b-07e903270ab5/ms_excel_salary_sheet_example.pdf
    • https://s3.amazonaws.com/tuxenipup/59393056389.pdf
    • https://s3.amazonaws.com/xetasif/kuvakupesaresaredu.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_off00014924.bin
a86b7e553c677c8c9d20b24d50972fddf1dffa5924d77d48bea892099e793f24
pdf-font-stream PDF embedded font (sfnt) at offset 0x14924 5624 bytes
font_01_sfnt_off00015c3c.bin
26479540df03d11cd83a783eccb26f17a37d73678820a45981422f37d1e36463
pdf-font-stream PDF embedded font (sfnt) at offset 0x15C3C 12204 bytes