Malicious PDF — malware analysis report

Static analysis result for SHA-256 c200f8f1f4b45ece…

MALICIOUS

PDF

55.2 KB Created: 2020-11-07 03:36:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: e10af7ce2f0b6398e7be71468d735e00 SHA-1: 2f14ef88d29243e4c60bfb01c8d987a12063c59c SHA-256: c200f8f1f4b45ece7c1e38dfab3d178ea3c8cfcec6785d0578787f3b330cdc91
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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://trafficel.ru/aws?keyword=1996+harley+sportster+service+manual PDF link annotation
    • https://gukijofajileraw.weebly.com/uploads/1/3/4/3/134392650/dekuguloruvufop_roruzu_gupusapav_naxepix.pdfIn PDF document text
    • https://tanutefezuje.weebly.com/uploads/1/3/4/4/134437554/bukajijofapegul.pdfIn PDF document text
    • https://buxipowuno.weebly.com/uploads/1/3/4/3/134353207/4239534.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379842/normal_5f8c3f0283669.pdfIn PDF document text
    • https://sokuvotaboraj.weebly.com/uploads/1/3/0/7/130776263/1948383.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454967/normal_5fa19d7e8d3ad.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://nekonenos.files.wordpress.com/2020/11/rugowebopufelevunig.pdfIn PDF document text
    • https://zosejejitem.files.wordpress.com/2020/11/woxirav.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/83053782890.pdfIn PDF document text
    • https://lofakuserizo.files.wordpress.com/2020/11/31887622991.pdfIn PDF document text
    • https://sisiviweze.files.wordpress.com/2020/11/50939477702.pdfIn PDF document text
    • https://nenupewav.files.wordpress.com/2020/11/54086346702.pdfIn PDF document text
    • https://siwereja.files.wordpress.com/2020/11/74219477726.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C98 14544 bytes
SHA-256: 777656ea9b57986a989a104a0fe02f9ad471d92dcec5c3b80f7f5fb619edff38
font_01_sfnt_off00008c3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C3A 5484 bytes
SHA-256: 9c80e165347caef1cbb3017116d8bfe9fb0ab96c9675f62f087287b6998945ad
font_02_sfnt_off00009ebb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9EBB 10172 bytes
SHA-256: 38ebfda010c1761c62dc7eed891fd7888b2c7bb7371645b488ad999423d8653c
font_03_sfnt_off0000c183.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC183 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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