Malicious PDF — malware analysis report

Static analysis result for SHA-256 380db381bfdf200f…

MALICIOUS

PDF

75.7 KB Created: 2021-02-27 11:25:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 2b834327d4e5ffa42b39d63639cb6b7d SHA-1: 068a28fc760ec10998a47a976f35705ab3e21262 SHA-256: 380db381bfdf200f1decf52c6af1549f4901bf26d2314bf58d28bd0098a98d12
186 Risk Score

Malware Insights

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

This PDF document contains numerous external links, many hosted on disposable domains, suggesting a link farm designed to redirect users to potentially malicious sites. The presence of a URL referencing 'granny legend hack apk' indicates a lure for potentially unwanted software or a phishing scheme. While no scripts were explicitly extracted, the PDF structure and extensive link farm heuristics strongly suggest malicious intent, likely for user redirection and potential credential harvesting or malware distribution.

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://xezojetit.ru/wix?keyword=granny+legend+hack+apk PDF link annotation
    • https://kusafulidofet.weebly.com/uploads/1/3/4/0/134017607/fasomokel_moveri_waxorexemaxijid.pdfIn PDF document text
    • https://rukururage.weebly.com/uploads/1/3/0/9/130968917/pomowekukuzezizudopi.pdfIn PDF document text
    • https://zarojapejafaro.weebly.com/uploads/1/3/5/3/135347044/bisoruxenig-fejozilibe.pdfIn PDF document text
    • http://rowowesofazov.medianewsonline.com/kujeso.pdfIn PDF document text
    • https://xepapure.weebly.com/uploads/1/3/4/3/134367208/wamozoz.pdfIn PDF document text
    • https://xufizuwerab.weebly.com/uploads/1/3/0/7/130738786/kopokegakufopibeji.pdfIn PDF document text
    • https://gufonalika.weebly.com/uploads/1/3/4/0/134096228/gufemagivonetepiw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403417/normal_5ff50afd90dd6.pdfIn PDF document text
    • https://bowutemol.weebly.com/uploads/1/3/4/2/134234741/9337784.pdfIn PDF document text
    • http://ronifibofizet.medianewsonline.com/zidonos.pdfIn PDF document text
    • http://beviluxenumiliv.mywebcommunity.org/nekefatevitidilexaduzofi.pdfIn PDF document text
    • http://lojapidabud.mypressonline.com/wayne_dyer_meditation_music.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481164/normal_602f3e72c57fb.pdfIn PDF document text
    • https://xigobiniliw.weebly.com/uploads/1/3/5/2/135298108/gadavu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dorulusof/buyhatke_flight_comparison.pdfIn PDF document text
    • https://s3.amazonaws.com/polexebuj/4868138795.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_off0000edb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDB8 5356 bytes
SHA-256: eb20c2f19f53175f6ce7eb9e6a92a26dbffc4ddf76cd2b5a8e464c3d1b085b16
font_01_sfnt_off0000fff0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFF0 9888 bytes
SHA-256: ea35a061795993744c9613636b9aee5d32d4cd6fe8b1624f25fe482afe4c941c

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