Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbc95d72cd9b2265…

MALICIOUS

PDF

82.9 KB Created: 2021-03-08 08:32:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2dc92137bd880a1723b0d121d2c4a05c SHA-1: 95012e36985177557f3441f47cf55aa231f3b3ac SHA-256: dbc95d72cd9b226561c0405ede1801a1e98aaa1d1ce401a25017235a80aa8bb9
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://baarspo.ru/123?utm_term=sig+p226+extreme+grips
    • https://cdn-cms.f-static.net/uploads/4463264/normal_6027adc8650fb.pdf
    • https://fusesekomufe.weebly.com/uploads/1/3/1/6/131606177/7997828.pdf
    • https://bateworolod.weebly.com/uploads/1/3/4/3/134315912/1867329.pdf
    • https://static.s123-cdn-static.com/uploads/4366662/normal_5fc7615d85abb.pdf
    • https://lugonejiborin.weebly.com/uploads/1/3/5/3/135336075/2003108.pdf
    • http://saletipaja.22web.org/sanemonabaladem.pdf
    • http://punavuvipufov.sportsontheweb.net/29492237086.pdf
    • https://cdn-cms.f-static.net/uploads/4369189/normal_5fd68ed0799a4.pdf
    • https://cdn-cms.f-static.net/uploads/4413465/normal_603779092d89b.pdf
    • https://cdn-cms.f-static.net/uploads/4494674/normal_600bc7fc60bdd.pdf
    • http://jakesubinosol.scienceontheweb.net/pitesefekin.pdf
    • http://revilokepudidu.mygamesonline.org/what_is_the_entertainer_personality_type.pdf
    • http://nefidale.22web.org/45471059083.pdf
    • http://lezigovedavide.getenjoyment.net/beligexaposolopilado.pdf
    • http://demuxum.getenjoyment.net/xilokejotuzijakususo.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://rabatelekovufar.myartsonline.com/fufanu.pdf
    • https://s3.amazonaws.com/kalanejaxutilif/lessons_learned_cimorelli_book.pdf
    • http://fuvojofud.epizy.com/panamapexijuve.pdf
    • https://s3.amazonaws.com/zoluwivebiro/gavoja.pdf
    • https://s3.amazonaws.com/punurum/apollo_13_movie_question_answers.pdf
    • https://s3.amazonaws.com/midaguvimabof/79844198720.pdf
    • http://forubav.rf.gd/tusinebi.pdf
    • https://s3.amazonaws.com/vitelitubovuluj/46302507998.pdf
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f9f2.bin
d2b0f378a9f4f13b91c205fd5d8eb3c89c4fcc3648a02f55bc24110feb5461f4
pdf-font-stream PDF embedded font (sfnt) at offset 0xF9F2 4928 bytes
font_01_sfnt_off00010ab9.bin
0f002638e92841b924288a89a4e8888c8c76efb5a8bda761d22d435c7db4bf3b
pdf-font-stream PDF embedded font (sfnt) at offset 0x10AB9 10892 bytes
font_02_sfnt_off00013006.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230
pdf-font-stream PDF embedded font (sfnt) at offset 0x13006 4324 bytes