Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4d97d9970b19a54…

MALICIOUS

PDF

89.8 KB Created: 2021-03-17 07:31:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 0e8e807aed6b3d13052364fbad50af6d SHA-1: 93374478fb63c081ea84276c0df7c487a11e63f1 SHA-256: c4d97d9970b19a54aa1ed86d90af64a68efd71834f51ac5c54d21127e7bc2933
96 Risk Score

Malware Insights

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

The file is a PDF document identified as malicious by ML classifiers and ClamAV. It contains an embedded URI pointing to 'lozipotod.ru', which is likely a phishing or malware distribution domain. The document body, though heavily obfuscated, suggests a lure related to psychology books, aligning with common phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

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://lozipotod.ru/award?keyword=libros+psicologia+autoestima+pdf PDF link annotation
    • https://dekitinuro.weebly.com/uploads/1/3/4/8/134871397/7458269.pdfIn PDF document text
    • https://guvorike.weebly.com/uploads/1/3/4/2/134266232/0601a77faf.pdfIn PDF document text
    • https://woronawupewusor.weebly.com/uploads/1/3/4/6/134672267/9c58b8.pdfIn PDF document text
    • https://nosisakapu.weebly.com/uploads/1/3/4/7/134773138/xusakuvonagexo-fololerutoju.pdfIn PDF document text
    • https://fafofezun.weebly.com/uploads/1/3/4/3/134338513/3395218.pdfIn PDF document text
    • http://life50it.pro/badass_celtic_names1ftrr.pdfIn PDF document text
    • https://wumotupukivu.weebly.com/uploads/1/3/4/5/134525371/7ab54.pdfIn PDF document text
    • https://cdn.sqhk.co/xobadata/jjomxii/28233178221.pdfIn PDF document text
    • https://cdn.sqhk.co/murefazomejo/hjDBBgj/rojofufajarajowavu.pdfIn PDF document text
    • http://funseeds.site/lifajesibewxhb9k.pdfIn PDF document text
    • http://nibelv.xyz/robikapolivaledifevuwifak6t.pdfIn PDF document text
    • http://orbitan.fun/best_security_certifications_for_beginnersoa2mr.pdfIn PDF document text
    • https://cdn.sqhk.co/verexoleki/WKPgiib/sajodipukuzavugi.pdfIn PDF document text
    • http://detonic-hypertonie.website/alesis_dm10_pro_mkiiltc79.pdfIn PDF document text
    • https://cdn.sqhk.co/temetixufuxi/hijepRC/plants_vs_zombies_1_videos_youtube.pdfIn PDF document text
    • https://cdn.sqhk.co/wezufunin/Qfsjdde/bubble_tea_house_providence_menu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/nufidibodudulad/ds_emulator_android_with_cheats.pdfIn PDF document text
    • https://s3.amazonaws.com/xiwevitox/broadsheet_melbourne_cbd_breakfast.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b8e9f58f-c755-4462-be15-a5b282af189b/do_you_cook_brisket_fat_side_up_or_down_in_the_oven.pdfIn PDF document text
    • https://s3.amazonaws.com/bevekizadoxuj/51186922360.pdfIn PDF document text
    • https://s3.amazonaws.com/gixirojozogufux/kingdom_hearts_3d_ps4_trophy_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/wuwabobujasivor/14971703894.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74148440-2ac1-478f-9c64-08b97c0a7804/tojuworakapirilezavag.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b4324735-a527-4dcb-a258-12d359e3f17d/gazugixixusebinolonapig.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b8c9649-214b-492c-a98a-a0c8984fb071/22860974496.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000112a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112A6 5332 bytes
SHA-256: 93c9fc9dc2c4c591f1e1151e90714122e430001cbddbe0c44ba63417887e960a
font_01_sfnt_off000124c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x124C3 12288 bytes
SHA-256: ca62c768fd55cbff4a452f132906fd70712c62ae4741646f7dcfad5016013290
font_02_sfnt_off00014b79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14B79 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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