Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d9830295b670ff0…

MALICIOUS

PDF

69.3 KB Created: 2021-02-24 14:11:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 09bcfa42178a0b23b14692f4cf4b45eb SHA-1: cc312c03f2c63d3349e22f492cd29b5613c8aabf SHA-256: 0d9830295b670ff0ec335ce3694f9c75583311bd152b71df8c72d5c0acc1ecc7
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 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://baarspo.ru/award?keyword=what+kind+of+battery+does+a+jeep+grand+cherokee+use PDF link annotation
    • https://potezevaledu.weebly.com/uploads/1/3/1/4/131406960/bufeleko.pdfIn PDF document text
    • https://cdn.sqhk.co/soxuxopova/vhckgi8/christmas_santa_run_london.pdfIn PDF document text
    • https://cdn.sqhk.co/foxoxaze/MvjgSBW/momibilipurirogo.pdfIn PDF document text
    • https://cdn.sqhk.co/tixunadegu/jj7ifhb/nibis.pdfIn PDF document text
    • https://cdn.sqhk.co/kelufuro/ziihhBK/zombie_222_mustang_burnout.pdfIn PDF document text
    • https://cdn.sqhk.co/vewukiziwemi/XmjfibJ/dujerodivomub.pdfIn PDF document text
    • https://cdn.sqhk.co/jidulopavoji/NAgijip/crossy_road_download_pc.pdfIn PDF document text
    • https://sezalufuveded.weebly.com/uploads/1/3/4/3/134389043/140343.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
    • http://xoxigibutu.epizy.com/66778545802.pdfIn PDF document text
    • https://s3.amazonaws.com/fakuguvil/bacteria_baumannii.pdfIn PDF document text
    • https://s3.amazonaws.com/dowesitobuga/71984396977.pdfIn PDF document text
    • http://zidumive.rf.gd/acdsee_ultimate_9.pdfIn PDF document text
    • https://s3.amazonaws.com/defipedibe/35701001185.pdfIn PDF document text
    • https://s3.amazonaws.com/jivuxo/acute_infectious_diarrhea_in_immunocompetent_adults.pdfIn PDF document text
    • http://komusera.rf.gd/53054194081.pdfIn PDF document text
    • http://nijugatujoz.rf.gd/bosch_axxis_washer_not_spinning.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c4b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4B3 5664 bytes
SHA-256: c1c026a2ae3430f7b451b424abd4da49a166b60e37cb41e24391a06a6a5f7708
font_01_sfnt_off0000d7ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7FF 9876 bytes
SHA-256: 79509ae8147fb6c587176668de3d153b68abb888aac2f314f97ff49043283df3
font_02_sfnt_off0000f9d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9D5 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2