Malicious PDF — malware analysis report

Static analysis result for SHA-256 6db29d1a633f1fa6…

MALICIOUS

PDF

80.6 KB Created: 2021-05-03 21:02:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f968b7f51760338aab63886ed2bb49e3 SHA-1: 7ae876858a00aa962eed3c74ec49815579897bff SHA-256: 6db29d1a633f1fa6eff393f3fbf741fdde614545b07a76de1b22892009453097
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.
  • 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://ponafet.ru/strik?utm_term=baby+girl+names+that+start+with+a+c
    • https://xonasuxodu.weebly.com/uploads/1/3/2/6/132681295/bde578d.pdf
    • https://cdn-cms.f-static.net/uploads/4407733/normal_60443f691b4d5.pdf
    • http://baxosemot.iblogger.org/dragon_age_inquisition_official_strategy_guide.pdf
    • https://supogile.weebly.com/uploads/1/3/1/6/131606666/tiwigiriri.pdf
    • https://rudiduwusoxu.weebly.com/uploads/1/3/4/4/134445317/wefopamazeg.pdf
    • https://cdn-cms.f-static.net/uploads/4393204/normal_60534ee3c8abb.pdf
    • https://static.s123-cdn-static.com/uploads/4490370/normal_5ff2103063b1b.pdf
    • https://cdn-cms.f-static.net/uploads/4492281/normal_5fd326aa77b59.pdf
    • https://lemevepavakupe.weebly.com/uploads/1/3/4/7/134701524/turibe-koniwokavazixo-sowozub-wanuv.pdf
    • https://cdn-cms.f-static.net/uploads/4403260/normal_6011f177ee93a.pdf
    • https://cdn-cms.f-static.net/uploads/4408190/normal_6030f61a1f347.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://198d5876-2e36-4a54-a59d-b4c1060b65be.filesusr.com/ugd/4733ca_5bd2f60517c5454ba147b267ff290ecd.pdf?index=true
    • https://c36efdde-2309-4ce2-a10d-b6df2ce12cd8.filesusr.com/ugd/e98059_2f643c2548464df29a15d0a708acf2ca.pdf?index=true
    • http://varowok.epizy.com/dejarokusolagabe.pdf
    • http://telijurubora.rf.gd/watership_down_movie_2018.pdf
    • http://fanalejowegop.atwebpages.com/67968059685.pdf
    • https://656adf98-7a81-40bd-8d0f-2b9c27d09201.filesusr.com/ugd/268ab1_7fe9c73b67e64dbdaa043429c37c489b.pdf?index=true
    • https://84d5b3ab-51dd-4312-87b7-51df18fb3b26.filesusr.com/ugd/9ea9b6_f462cd2d6df74627b541fc4d2abba309.pdf?index=true
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fd20.bin
366db4700712d60827596e8ff01cfc3c0bac5171d5787c0a70fa1dd533df3a9c
pdf-font-stream PDF embedded font (sfnt) at offset 0xFD20 5596 bytes
font_01_sfnt_off0001101c.bin
b715f77993903291b47e7c0b7ac064f09e4eed8478f9aeb31d9f7fc3df5c29d9
pdf-font-stream PDF embedded font (sfnt) at offset 0x1101C 11048 bytes