Malicious PDF — malware analysis report

Static analysis result for SHA-256 b75e56324f7c0d2b…

MALICIOUS

PDF

71.0 KB Created: 2021-02-18 09:44:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 1560580897902ee113d3abc2c2d51a31 SHA-1: 5d63ed7413de193e698c43a8472a36f84c4f2760 SHA-256: b75e56324f7c0d2bbebd9d037c8e6cd07f234d48da7ca684fc88c41b70a13f9e
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://baarspo.ru/wix?keyword=out+of+many+6th+edition+volume+2 PDF link annotation
    • http://bestpriceforukraine.xyz/digitech_jamman_looper_phrase_samplermed5l.pdfIn PDF document text
    • https://cdn.sqhk.co/leredupodeka/icgd2Q0/bollywood_mp3_song_download_320kbps_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/rujiwujik/qhgXFja/best_scary_vr_games_ps4.pdfIn PDF document text
    • https://nirotobilimob.weebly.com/uploads/1/3/4/4/134484477/verobilo-nevabefet-jatiwamezuna-lujokipixudiw.pdfIn PDF document text
    • https://cdn.sqhk.co/mipekakiri/cDhbQjb/scruff_a_luvs_babies_platypus.pdfIn PDF document text
    • https://cdn.sqhk.co/dafisuwikib/biiiggf/kasemup.pdfIn PDF document text
    • https://cdn.sqhk.co/wepigosogo/Jggqoja/nopolofosi.pdfIn PDF document text
    • http://tunulawofu.iblogger.org/an_anthology_of_short_stories.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/bokexizometun/audiobook_file_format_for_android.pdfIn PDF document text
    • http://ralipuzejemozuz.epizy.com/nasipoxenalo.pdfIn PDF document text
    • http://dojeguxe.rf.gd/cv_administrateur_base_de_donnes.pdfIn PDF document text
    • http://butaxogusevi.epizy.com/asia_cup_cricket_2018_date_sheet.pdfIn PDF document text
    • http://nojosatu.epizy.com/roland_aerophone_ae-_10g_manual.pdfIn PDF document text
    • http://lumigetutiburu.epizy.com/atkins_bars_nutrition_information.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_off0000daf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAF3 5348 bytes
SHA-256: 1aec9b43a077f33f8a23c80bb3e79a51c14cd1ef9351920d1f4d60f18961a84e
font_01_sfnt_off0000ed0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED0A 10032 bytes
SHA-256: c59ba6f02ccbfccb242b333af74d9c9378f5aaf2246af325419611c06c4570f5