Malicious PDF — malware analysis report

Static analysis result for SHA-256 982a7e832cb04955…

MALICIOUS

PDF

75.2 KB Created: 2021-02-06 05:16:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: f0ef1f01fa493364b033443cc1340706 SHA-1: 9f6af078a28bbeb90c551b74cadbfba711e8b75a SHA-256: 982a7e832cb04955ca9aca96389bb0e57e2862d159a8ed7317747396bffd096a
96 Risk Score

Malware Insights

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

The file is a PDF document flagged as malicious by ML classifiers and ClamAV. It contains an embedded URL pointing to 'seumenha.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to 'rose gold foil background textures free', indicating a deceptive tactic to entice users to click the malicious link. No scripts were extracted, but the presence of external URIs and the overall malicious verdict strongly suggest an attempt to compromise the user.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://seumenha.ru/aws?utm_term=rose+gold+foil+background+textures+free PDF link annotation
    • http://ru-payment.casa/the_craft_of_research_4th_edition_downloadovshd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384851/normal_5fe9153c93ecf.pdfIn PDF document text
    • https://cdn.sqhk.co/pasojixaju/Hii9hic/lozokimamilosajokes.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476432/normal_5fcc228ce07d1.pdfIn PDF document text
    • http://rrrrkkkkk.space/cyberpunk_2077_wallpaper_phoneqgbi1.pdfIn PDF document text
    • http://all-gopro.com/2441227731948fp7.pdfIn PDF document text
    • http://beamorem.com/jadu_ka_ilaj_abdul_salam_bali_englishhh31v.pdfIn PDF document text
    • https://cdn.sqhk.co/tofegejij/gdhhhaN/wifi_power_save_mode_j7.pdfIn PDF document text
    • https://cdn.sqhk.co/dumotometapo/ixhhiqx/93662106065.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476015/normal_5fe3c2233cce9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411932/normal_5fdc6e0bbb818.pdfIn PDF document text
    • https://cdn.sqhk.co/sanevujaguda/Wsvhiih/41733060923.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383138/normal_60025de66e393.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476273/normal_600e071894f82.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/feseni/73674347959.pdfIn PDF document text
    • https://s3.amazonaws.com/titugome/bolivia_league_table_form_fixtures.pdfIn PDF document text
    • https://s3.amazonaws.com/zikeko/mudesatelipimapuvati.pdfIn PDF document text
    • https://s3.amazonaws.com/ganubifirigevi/kimomumonugejitik.pdfIn PDF document text
    • https://s3.amazonaws.com/purufiz/nebejikusudariforuvuxed.pdfIn PDF document text
    • https://s3.amazonaws.com/mufukep/rabuwexoritonosuvi.pdfIn PDF document text
    • https://s3.amazonaws.com/wukevirenesu/christopher_robin_movie_trailer.pdfIn PDF document text
    • https://s3.amazonaws.com/pisedij/bye_bye_man_parents_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/kewuxejikiwe/37390320767.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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_off0000d8a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8A0 6588 bytes
SHA-256: 24fd6868f187b5667792517f9f69d22ac5a3de5011d4d3824467392effeade79
font_01_sfnt_off0000e91a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE91A 5468 bytes
SHA-256: 8abb22a8e29c0c4fbd290754086afb591223f100902fda5f66037225390ba307
font_02_sfnt_off0000fbcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBCF 10264 bytes
SHA-256: 6a2771762c80273c766d6796c5582380689af05628c1db6dfe177dec5e88ce84

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