Malicious PDF — malware analysis report

Static analysis result for SHA-256 54571f09ad974a72…

MALICIOUS

PDF

75.0 KB Created: 2021-03-07 22:40:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 2dc081938cea49565735ec536c661e83 SHA-1: f98b6f604d462f772f12728c1ed57ba8413bd268 SHA-256: 54571f09ad974a724bcf8c65109b515d35bdfab162d5a08b4c8d11df9d3c5ea1
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 5

  • 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.
  • 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://xajibur.ru/award?keyword=how+to+connect+my+fitbit+versa+lite+to+my+phone PDF link annotation
    • https://nikonewakudofu.weebly.com/uploads/1/3/2/3/132303001/d18487a1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412773/normal_603916aea3514.pdfIn PDF document text
    • https://cdn.sqhk.co/remowiwa/bgtjjbj/kufigixolejojin.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377935/normal_5fe975524b3b2.pdfIn PDF document text
    • https://xijapesulole.weebly.com/uploads/1/3/4/5/134588017/7902256.pdfIn PDF document text
    • https://luwuruguvuwotom.weebly.com/uploads/1/3/0/9/130969706/gugifuri.pdfIn PDF document text
    • https://garowenin.weebly.com/uploads/1/3/4/6/134662298/9998107.pdfIn PDF document text
    • https://cdn.sqhk.co/gukisafuw/ghgiiig/business_startup_grants.pdfIn PDF document text
    • http://goladelexugezi.sportsontheweb.net/79201186787.pdfIn PDF document text
    • https://cdn.sqhk.co/nadipozow/ZhdeVlP/nowezubigufefumepin.pdfIn PDF document text
    • http://mixutadumekaje.mypressonline.com/will_verizon_prepaid_phones_work_with_straight_talk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411915/normal_5ff0dd8f8c4ba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421969/normal_6043b5107c163.pdfIn PDF document text
    • https://woxabofubal.weebly.com/uploads/1/3/0/7/130739449/558cf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/25439580-0c20-420d-8a4c-1a46ae061415/how_to_set_up_tracfone_lg_rebel_4.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4041f48f-4d10-4ce9-bfdf-bd3f875a791e/fapifogerumosugopufadad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d8fcbd7d-f6a9-4166-b07e-d469578f7663/1056570187.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d364454d-d43c-430d-9ff7-fd299dff5bc2/lg_bluetooth_headphones_for_tv.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e850.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE850 5608 bytes
SHA-256: a19137b031bde6fac2e0b451bb54cdf8475ae90584455f1399a587c7f2e2ce27
font_01_sfnt_off0000fb51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB51 10252 bytes
SHA-256: 0a57c3606826639cbe0539c90f17ed693061b762a8d05b3b0bde5878259afe10