Malicious PDF — malware analysis report

Static analysis result for SHA-256 e29c8d68d59413b7…

MALICIOUS

PDF

81.9 KB Created: 2021-03-03 09:32:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: 167c11f75a85d460a73d392644b324ab SHA-1: b4174983d4d2e9b0ffb8b88e9b96366e87920739 SHA-256: e29c8d68d59413b7ea11ab141d0a285adcdf9cf84b4b175d1df473f00aa039d8
154 Risk Score

Malware Insights

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

The PDF contains embedded links pointing to malicious infrastructure, specifically identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, appears to be a lure related to a Logitech Harmony 650 remote, suggesting a phishing or malware delivery attempt.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://dafemum.ru/award?keyword=how+to+use+logitech+harmony+650+remote In PDF document text
    • http://momsmall.space/942962014811kxl7.pdfIn PDF document text
    • https://cdn.sqhk.co/tedubifo/oh8jjWm/minetest_download_windows_7.pdfIn PDF document text
    • http://apple-fruit.space/zombie_mode_pubg_lite8inut.pdfIn PDF document text
    • http://bigtittybella.com/sportspower_12ft_trampoline_enclosureb2xw9.pdfIn PDF document text
    • http://runolive.com/anandam_songs_starmusiqlte3w.pdfIn PDF document text
    • https://cdn.sqhk.co/kutajanode/SjaFhdg/modern_warfare_tracker_perk_counter.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/didowugorokirug/jitafevefisifozal.pdfIn PDF document text
    • https://s3.amazonaws.com/xujitezu/south_movie_new_2019_3gp.pdfIn PDF document text
    • https://s3.amazonaws.com/fowonaxul/accident_report_today_free_state.pdfIn PDF document text
    • https://s3.amazonaws.com/regovadeje/18000768314.pdfIn PDF document text
    • https://s3.amazonaws.com/jijari/34196546307.pdfIn PDF document text
    • https://s3.amazonaws.com/vunizi/88478823189.pdfIn PDF document text
    • https://s3.amazonaws.com/kumasala/48973922524.pdfIn PDF document text
    • https://s3.amazonaws.com/nimuwet/animal_crossing_gamecube_rom_android.pdfIn PDF document text
    • https://s3.amazonaws.com/bokofapig/89268116726.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_off00010344.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10344 5788 bytes
SHA-256: 9cf6eff6b6f6115a6e7b4db0a4862a94d14f8ac734c9970027eb1dccd0fedb7b
font_01_sfnt_off000116ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116EE 10464 bytes
SHA-256: 3110feb529abc9ebb9e90f1524dc77c6d9ba69b44128fec900b8cdd838ccf9c5