Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1e0605418f70cfa…

MALICIOUS

PDF

81.7 KB Created: 2021-03-11 21:37:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 2ac0ea8d498004b0db1bca03b8d01ee8 SHA-1: 69fdb798bc90f5a4931891c48f05ac4c0f1db356 SHA-256: e1e0605418f70cfa79fdca379a6e818381ac3178534098e3a2d4958c387b0277
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The document contains numerous external URIs and is structured as a link farm, with a specific focus on 'mmorpg apk 2d', suggesting a phishing or malware distribution lure. The presence of embedded URLs and the overall structure point towards an attempt to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://gimoguvi.ru/wix?keyword=mmorpg+apk+2d PDF link annotation
    • http://xafesalizupapal.22web.org/hayward_salt_cell_wont_calibrate.pdfIn PDF document text
    • https://joletumutete.weebly.com/uploads/1/3/4/8/134871701/3027156.pdfIn PDF document text
    • http://ximasoj.22web.org/do_cast_members_get_free_parking_at_downtown_disney.pdfIn PDF document text
    • https://naruvemekojesez.weebly.com/uploads/1/3/4/6/134685524/zuparorasuvajoz.pdfIn PDF document text
    • http://save50.pro/49ers_injury_report_kittlepdfhi.pdfIn PDF document text
    • http://canlisohbetim.net/xawuraravito9nq7i.pdfIn PDF document text
    • http://wigigokewadusad.iblogger.org/66915411861.pdfIn PDF document text
    • http://zidujuwus.iblogger.org/58456631100.pdfIn PDF document text
    • http://stalekost.site/pukipopxpbny.pdfIn PDF document text
    • http://kokofiru.22web.org/jamadar_answer_key.pdfIn PDF document text
    • http://meetly.space/xafetitegelanukej9xkfo.pdfIn PDF document text
    • https://rewojomivatal.weebly.com/uploads/1/3/5/3/135345623/vejezipanapuj_jeresinu_lixoretobepimo.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://uploads.strikinglycdn.com/files/5c1943e5-965a-4339-bbdc-3d2528345336/rapixidura.pdfIn PDF document text
    • http://bupojawepuda.epizy.com/12610200481.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9224b015-e9c5-4cab-a9ae-f9e3dc208e91/examples_of_god_chasers_in_the_bible.pdfIn PDF document text
    • http://giduwizata.rf.gd/zokiwuzokupopemimilo.pdfIn PDF document text
    • http://bikutuvuxaxixo.epizy.com/agenda_for_shareholders_meeting_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f068499e-a9f6-4d98-b7e7-b1f69ac32b3f/48999280950.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e27f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE27F 4708 bytes
SHA-256: a893063fa854e542efc276ceaee0ad646bb51528b7b73560fddd5d55c720ca73
font_01_sfnt_off0000f278.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF278 10580 bytes
SHA-256: 1923bf98cd07e79f1a5a968638b5189947e1be42d28ddb78e35d22847392b218
font_02_sfnt_off000116bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116BF 16092 bytes
SHA-256: e9fe716c2abc985b12a899a49d5539e4e8be1b56d50c083b30290d85a2a7c848
font_03_sfnt_off00012b87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B87 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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