Malicious PDF — malware analysis report

Static analysis result for SHA-256 3408dceed9452ae2…

MALICIOUS

PDF

81.1 KB Created: 2021-03-29 23:16:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 8bf6063d1e722b695d3de7c1dbe14bde SHA-1: 211b8cd87b0ba4c744a0bf78995ce88c818ce0dd SHA-256: 3408dceed9452ae2ecdf63ababf2a4cb39dd9ef197ac57034db1ce18ece3982c
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

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://gimoguvi.ru/123?utm_term=unity+change+animation+sprite+sheet PDF link annotation
    • http://tobufupevujuma.mygamesonline.org/cabinet_mantri_2020_download.pdfIn PDF document text
    • http://boost-shop.xyz/47741690224dej0e.pdfIn PDF document text
    • http://zesaguzijor.mypressonline.com/diablo_3_ps4_save_editor_2018.pdfIn PDF document text
    • http://talkme-news.info/australian_guidelines_for_benign_prostatic_hyperplasia0de8q.pdfIn PDF document text
    • http://mesretly.xyz/xevopibiwasijufedelalaviqs1i.pdfIn PDF document text
    • http://kononameve.mywebcommunity.org/fitiwu.pdfIn PDF document text
    • http://fitnesspack.net/craftsman_shop_vacuum_filter_178167zcg2.pdfIn PDF document text
    • http://befotuke.mywebcommunity.org/45463953226.pdfIn PDF document text
    • http://sobuvide.mygamesonline.org/sefurapojezela.pdfIn PDF document text
    • http://stroy-level.ru/elegoo_arduino_starter_kit_reviewjvahx.pdfIn PDF document text
    • http://jixazepo.mywebcommunity.org/blanche_barrow_book.pdfIn PDF document text
    • http://optalpha.com/44493920443jxz5h.pdfIn PDF document text
    • http://usecabinets.xyz/28682066985n0bk4.pdfIn PDF document text
    • http://yoganchik.space/92271934255k6tii.pdfIn PDF document text
    • http://hot-money.fun/909564918324mixn.pdfIn PDF document text
    • http://rawoxaxevog.mygamesonline.org/what_is_sum_to_infinity_of_a_geometric_sequence.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/dudigonifu/sebeden.pdfIn PDF document text
    • https://s3.amazonaws.com/lakadutof/78966090799.pdfIn PDF document text
    • https://s3.amazonaws.com/lorugipopuxe/jelirolopowizesowapipuwe.pdfIn PDF document text
    • https://s3.amazonaws.com/mijumomub/62956388778.pdfIn PDF document text
    • https://s3.amazonaws.com/norozovijalu/padavakek.pdfIn PDF document text
    • https://s3.amazonaws.com/pekatikisuruki/11564313498.pdfIn PDF document text
    • http://tososite.onlinewebshop.net/41797647831.pdfIn PDF document text
    • http://zasuwunal.myartsonline.com/lirudezudojezifuk.pdfIn PDF document text
    • https://s3.amazonaws.com/towakog/cinema_4d_trial.pdfIn PDF document text
    • https://s3.amazonaws.com/mexavofezoxi/33127161406.pdfIn PDF document text
    • https://s3.amazonaws.com/zidenigad/copper_reflux_still_plans.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_off0000ff45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF45 5408 bytes
SHA-256: 9f5669e72540e4267e5e810849fd57f68420bd07200090be20dbd4db063b9d34
font_01_sfnt_off0001118e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1118E 10892 bytes
SHA-256: 5795fed75eefc2e53b723a658586706dc0bd388f74124f563cb81f86f57ae921

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