Malicious PDF — malware analysis report

Static analysis result for SHA-256 49f9285933f8848a…

MALICIOUS

PDF

79.0 KB Created: 2021-02-26 20:12:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 6be608475d52be99a05d19c03bfc52d5 SHA-1: 3b839d2902230e1674f25ddbd471b26c97176273 SHA-256: 49f9285933f8848a63fcaedbad56b3ad3078f7451fe9ac6b5607deb016d32f41
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://jottigo.ru/wb?keyword=nj%20drivers%20license%20renewal%20form%20instructions PDF link annotation
    • https://dibikavo.weebly.com/uploads/1/3/0/7/130738915/e638fdf0fe6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409614/normal_6009b46b40989.pdfIn PDF document text
    • https://cdn.sqhk.co/tewokozogop/ibkha6G/virtual_friend_app_android.pdfIn PDF document text
    • https://cdn.sqhk.co/bapuwanuvadi/NXigDaP/dinosaur_hunter_dino_city_2017.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384144/normal_5fdb0e0594cbd.pdfIn PDF document text
    • https://womegirig.weebly.com/uploads/1/3/4/5/134506381/2340007.pdfIn PDF document text
    • http://memisada.mygamesonline.org/81972264473.pdfIn PDF document text
    • https://lawagupavuraxap.weebly.com/uploads/1/3/4/6/134616311/4859045.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501660/normal_5fd158e18762a.pdfIn PDF document text
    • https://vesasasafej.weebly.com/uploads/1/3/4/7/134758359/jojitaf_zurojonuj_xutevo_tivurakof.pdfIn PDF document text
    • https://purubagenipobeb.weebly.com/uploads/1/3/1/3/131398544/sigisotogeze.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386851/normal_5fc98f2dddb83.pdfIn PDF document text
    • https://bazitakitavame.weebly.com/uploads/1/3/5/3/135394276/baxavafapafades.pdfIn PDF document text
    • https://natozimokuwepef.weebly.com/uploads/1/3/4/3/134398015/3019938.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365598/normal_602b6ffbe1ae7.pdfIn PDF document text
    • https://cdn.sqhk.co/mofokamibe/Rhjhfgd/ugly_tv_show_characters_cartoon.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kavibajegis.onlinewebshop.net/kavulujabavaluvokurosi.pdfIn PDF document text
    • http://sogivuwe.onlinewebshop.net/66761261071.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_off0000f726.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF726 5364 bytes
SHA-256: 45fb590f4c0de016111cd86ec2a218a8675c1c90810a5fa2dce5b7f528b4d692
font_01_sfnt_off0001096f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1096F 11240 bytes
SHA-256: ab0b073f0890dfcaa06d9983c1263b589b8b0d849e099dcc5af9299bb1aa277e

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