Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2edc8664c01e202…

MALICIOUS

PDF

83.2 KB Created: 2021-04-02 11:31:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6341273f2308829a0f65fc6f8a8782fc SHA-1: 515418ef47b055831c858e984cdcbbeadcfc61ca SHA-256: b2edc8664c01e202b307d83b06962dc7c45872f6e74fda1115b788b5de6e3cef
156 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan threat. It contains external URIs and embedded links, with one primary URL suggesting a lure related to 'world war z' availability on Netflix. The presence of multiple external links and the nature of the primary URL strongly suggest a phishing attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 5

  • 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.
  • 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://resalured.ru/strik?utm_term=is+world+war+z+available+on+netflix
    • https://cdn.sqhk.co/fumodolanes/ibifhfg/30613510393.pdf
    • https://cdn.sqhk.co/tokofape/gidoxmh/nfl_schedule_week_12_2019.pdf
    • https://cdn.sqhk.co/xamewivuvus/YZBgcbV/pujikanamurukuvawiko.pdf
    • https://cdn.sqhk.co/gebunemif/bijjji2/dinosaur_rampage_power_max.pdf
    • https://cdn.sqhk.co/panajevem/hgejche/skulduggery_pleasant_wiki_magic.pdf
    • http://voseboler.iblogger.org/pdf_to_word_crack_free_download.pdf
    • https://cdn.sqhk.co/letarezetap/gchdjaG/lolegafofapolad.pdf
    • https://cdn.sqhk.co/wotirixa/XLv3hju/86700914441.pdf
    • https://cdn.sqhk.co/mujawiru/fqjasyS/24723952527.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/sukobogixe/whirlpool_easytronic_stove_manual.pdf
    • https://s3.amazonaws.com/zufaxepixiguxax/81951438661.pdf
    • https://e1318bff-d970-45e2-bcea-45481503a18b.filesusr.com/ugd/75a96d_acf574301f8d46c4a831088e1f2dcc37.pdf?index=true
    • https://s3.amazonaws.com/vifusupegiza/38843849948.pdf
    • https://s3.amazonaws.com/megodipewukitoj/carlson_survce_3.0_manual.pdf
    • https://s3.amazonaws.com/simujix/80799659200.pdf
    • https://s3.amazonaws.com/lezerawe/convertir_de_6_pulgadas_a_mm.pdf
    • https://584abdf6-e408-48d3-a53c-4313a8f82471.filesusr.com/ugd/18ee90_21b729a71c4c4e65a8836ebc93042fbe.pdf?index=true
    • https://1e1f235d-56dd-4976-b20d-d38e3fe7b172.filesusr.com/ugd/210b45_f435178cfc244607841ba34c83a17f2b.pdf?index=true
    • https://s3.amazonaws.com/jutenojamega/how_to_replace_drive_belt_on_husqvarna_riding_mower_yth2348.pdf
    • https://e510c2d5-567e-4a96-89ff-abc18316baf7.filesusr.com/ugd/8a9bcc_3480497bc0804f0c8abe53b463397347.pdf?index=true
    • https://9e28b13d-ef5c-4d18-821e-e071a8932918.filesusr.com/ugd/0b0738_fb50d4a7723c4b019c83970c21fc455d.pdf?index=true
    • http://goludoden.rf.gd/is_clint_eastwoods_movie_the_mule_based_on_a_true_story.pdf
    • https://s3.amazonaws.com/jovekus/how_long_to_cook_sweet_potatoes_whole.pdf
    • https://s3.amazonaws.com/kujesulad/spy_training_games.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fbce.bin
10a07fc969e6c8cf41398fcfefa625e426b29a45b33f3716d0886db1405c0d2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFBCE 2900 bytes
font_01_sfnt_off00010611.bin
9a5e83cca26d0f8809ac81cd4f0f0d5a534c5bb427a88c4c332c272a7cd5bd7f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10611 5248 bytes
font_02_sfnt_off0001181a.bin
c5574ef57cf631c9879ab777efb734a2d8f9119fa90ce0e74ba490adb63996ae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1181A 11364 bytes

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