Malicious PDF — malware analysis report

Static analysis result for SHA-256 179be0597b4d15bc…

MALICIOUS

PDF

65.8 KB Created: 2021-03-01 18:49:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0b6dcc671af961c785281e77dd9c4814 SHA-1: 92a18b81f6da8b1978d8a9e71e3d5181e865607f SHA-256: 179be0597b4d15bcccc16c04b81d9bf7cc0ec2c441f9b95c50b0f726b47d7300
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://midufefew.ru/aws?utm_term=cuisinart+griddler+panini+press+gr-1 PDF link annotation
    • http://heretythere.site/naxedifimazumaq97ak.pdfIn PDF document text
    • https://motedozanegiraz.weebly.com/uploads/1/3/1/3/131383309/rosefozudamala_kijajezir_wuvezirin.pdfIn PDF document text
    • http://henrysavbr.site/72302209488uyof5.pdfIn PDF document text
    • http://3bki.ru/arcore_apk_modmqwq4.pdfIn PDF document text
    • http://jewlgems.com/safari_2020_price1zqjs.pdfIn PDF document text
    • https://cdn.sqhk.co/mugegiduveb/gigEHkn/spill_it_red_meaning.pdfIn PDF document text
    • https://cdn.sqhk.co/tezizejaropu/iggic4e/faraway_puzzle_escape_level_5_walkthrough.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454432/normal_5fde4a24b3441.pdfIn PDF document text
    • https://cdn.sqhk.co/sisuriwul/g7KigTm/mabofuba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403119/normal_603028d679da5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367667/normal_5fe777e647236.pdfIn PDF document text
    • https://cdn.sqhk.co/bobofibu/ggThcgf/megabus_houston_to_new_orleans.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370533/normal_5fdf465902802.pdfIn PDF document text
    • https://mozalotajevel.weebly.com/uploads/1/3/2/6/132682758/bidunijadik.pdfIn PDF document text
    • http://zoo-taxi.site/lsat_reading_comprehension_biblet3p6w.pdfIn PDF document text
    • http://hocostyle.ru/cambridge_preparation_for_the_toefl_test_book_with_online_practice_tests_gratistjwmg.pdfIn PDF document text
    • http://realwockyc.info/quemando_y_gozando_libroke2lm.pdfIn PDF document text
    • https://cdn.sqhk.co/lepavenujal/mihijxd/hobby_lobby_store_map.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000c60f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC60F 5116 bytes
SHA-256: 6c95e4fa00496c980b451163e795517613831506317b719138f6600b65ad62a0
font_01_sfnt_off0000d78a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD78A 10468 bytes
SHA-256: 9e3c97496541ee0e25fe84f46ce9740cfd86494b7e1c3ad8af6999c0a19ec78a

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