Malicious PDF — malware analysis report

Static analysis result for SHA-256 07f1f6f2b60ab2cc…

MALICIOUS

PDF

102.2 KB Created: 2021-02-24 23:38:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 04772947bc4592ecc80ac0b6a89d77b5 SHA-1: 12205c0a0f5aecccc9b0623f6cb016c35ff31139 SHA-256: 07f1f6f2b60ab2cc78fc8752302b8b59dcf9b5146e6aed52945846680585b381
156 Risk Score

Malware Insights

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

The PDF contains numerous external links, with a critical heuristic identifying it as a link farm. One prominent URL, 'https://maypoin.ru/wix?keyword=bdo+tamer+guide', is directly associated with the document's content, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://maypoin.ru/wix?keyword=bdo+tamer+guide PDF link annotation
    • https://pasorizafam.weebly.com/uploads/1/3/4/0/134096756/gomenoga_tavixazololezi_zaxodidipug_kasiko.pdfIn PDF document text
    • https://cdn.sqhk.co/nuponoviva/iggeMhd/super_slime_sam_lol_omg_lights.pdfIn PDF document text
    • http://zemawage.22web.org/chapter_two_neil_simon.pdfIn PDF document text
    • https://cdn.sqhk.co/bubiwalifeda/UFXgefB/spark_chess_game_free_download.pdfIn PDF document text
    • https://fotunerabo.weebly.com/uploads/1/3/4/0/134042859/momilawavajolumemos.pdfIn PDF document text
    • https://cdn.sqhk.co/rabuzopat/hB8NIhb/33170270912.pdfIn PDF document text
    • https://cdn.sqhk.co/pixorikibam/jie6jfM/download_hangouts_dialer_call_phones.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/wusigipufuvowix/ncert_help_book_app_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/vifusupegiza/avast_antivirus_for_pc_free_filehippo.pdfIn PDF document text
    • http://tagejenetel.rf.gd/vawozukolifuvinifu.pdfIn PDF document text
    • https://s3.amazonaws.com/mexavofezoxi/p_g_logical_reasoning_test_answers.pdfIn PDF document text
    • http://nidalufexif.epizy.com/wifavodalimetesape.pdfIn PDF document text
    • http://tekoboworitutew.epizy.com/70041352706.pdfIn PDF document text
    • https://s3.amazonaws.com/wozoxub/wow_classic_alchemy_guide_deutsch.pdfIn PDF document text
    • https://s3.amazonaws.com/tolivajupeku/15954553666.pdfIn PDF document text
    • https://s3.amazonaws.com/fapaga/bawli_tared_ja_ringtone.pdfIn PDF document text
    • https://s3.amazonaws.com/pasawexawinogad/english_worksheet_for_class_11.pdfIn PDF document text
    • http://vepawipexujobok.epizy.com/acinetobacter_lwoffii.pdfIn PDF document text
    • http://kexeban.rf.gd/diary_of_wimpy_kid_the_long_haul_movie_review.pdfIn PDF document text
    • https://s3.amazonaws.com/wozoxub/v_for_vendetta_covid_mask.pdfIn PDF document text
    • http://tumofif.rf.gd/29222999401.pdfIn PDF document text
    • http://jidowadosul.epizy.com/28481000664.pdfIn PDF document text
    • https://s3.amazonaws.com/vonusirukete/3346707062.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_off0001490a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1490A 4984 bytes
SHA-256: 1ad0df6efc8ca3c1517d3283b58cdab64430dfc37ac3ea68f77d3a8251ae4636
font_01_sfnt_off000159eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x159EB 15932 bytes
SHA-256: ea3dac5efd9471063434bf579bfeb82e2d6180e5ce83d5f779321fd5df059465

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