Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3e14ccfe4c25c2d…

MALICIOUS

PDF

95.6 KB Created: 2021-03-03 23:20:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 04be59c24cd015b6d6a69239fad03309 SHA-1: 13602dce7bbcda6cebff6a8a516d505b66a8d7bd SHA-256: d3e14ccfe4c25c2d845a3849d925db44327fdd13426a3baa1d982e44a06c6699
126 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a phishing or trojan payload. It contains numerous external URIs, including one pointing to 'bologen.ru', suggesting an attempt to redirect the user to a malicious site. The document body, though heavily obfuscated, contains text related to a 'Sig Sauer p938' pistol, likely a lure to disguise the malicious intent. No scripts were extracted, but the PDF structure and URL heuristics strongly suggest a phishing or malware distribution attempt.

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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://bologen.ru/strik?utm_term=sig+sauer+p938+9mm+sports+13+pistol PDF link annotation
    • https://cdn.sqhk.co/xederebat/0giNgeh/video_player_for_android_tablet_free_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464524/normal_5feb176fd802e.pdfIn PDF document text
    • http://tubudemawaxoki.iblogger.org/31133442826.pdfIn PDF document text
    • http://xazoxaruxilovo.iblogger.org/73761723124.pdfIn PDF document text
    • https://cdn.sqhk.co/gulizate/xwijJFn/brimonidine_gel_cost.pdfIn PDF document text
    • http://nisebitedogofu.iblogger.org/how_to_determine_direct_material_price_variance.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426690/normal_603d0604df6fb.pdfIn PDF document text
    • https://cdn.sqhk.co/kigoxeni/Bjinvjh/kotage.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461483/normal_600b9cfca07c8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392474/normal_6023cbfe01e92.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446633/normal_600579de409aa.pdfIn PDF document text
    • https://cdn.sqhk.co/bapulofuw/aiejbZw/luxor_hotel_las_vegas_pyramid_deluxe_queen_room.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387826/normal_600c0d29b2a0d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484818/normal_5fd83ac86df74.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nodimetonakijeb.epizy.com/jbl_go_2_waterproof_speaker_review.pdfIn PDF document text
    • http://kadegezopofog.rf.gd/42772261968.pdfIn PDF document text
    • http://sonapap.rf.gd/gakiberaxukapirorumuper.pdfIn PDF document text
    • http://lemijafuw.epizy.com/battle_cats_hack_android_no_root.pdfIn PDF document text
    • http://kejarajavamoge.epizy.com/anarkali_songs_kuttyweb.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011c73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C73 5808 bytes
SHA-256: 982e63e9b3eb0b0b62cd547e2de4a0272faf244688910a18331c43475583dd34
font_01_sfnt_off0001301e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1301E 12216 bytes
SHA-256: aebeb1cc70532fd46474886eed3483be6c3ba6ec57da89226ab6912204bfacaf
font_02_sfnt_off0001597e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1597E 16676 bytes
SHA-256: 39a30ebdb2b5961141b80554c36418f4a5fcead7d67787016595a19310ba15d3

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