Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1898c8be382c338…

MALICIOUS

PDF

85.6 KB Created: 2020-11-17 21:08:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 6d05812abf9c0b0c0d7113d43cd3acd3 SHA-1: 9a2d72a7873f1df693f5f9c5005b45704484fa10 SHA-256: e1898c8be382c338af5cc562a1e9ee0c5b8d99b894fe8afb45e172f49335883e
186 Risk Score

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 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://trafficel.ru/123?utm_term=nfs+hot+pursiut+2 PDF link annotation
    • https://rikurifijuse.weebly.com/uploads/1/3/4/6/134681474/2743582.pdfIn PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/4867245.pdfIn PDF document text
    • https://fisizupesaxog.weebly.com/uploads/1/3/1/6/131636899/futevifulukipuva.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413866/normal_5fad59a9a905c.pdfIn PDF document text
    • https://wufenimikefi.weebly.com/uploads/1/3/4/3/134366244/5020325.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367921/normal_5f87b7e5149d4.pdfIn PDF document text
    • https://sulekigotama.weebly.com/uploads/1/3/4/3/134307446/4a71eac78edff.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/c93cb97f-223f-4aea-abb0-0157de53dab4/29173067853.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/gawekiparas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1876b327-084c-4b7a-9ee2-9489bc5d59e4/99237794697.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d81165c7-a8ff-41e5-aca7-a63b52e93a8f/the_power_of_your_metabolism_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0ed708eb-0c44-4de7-9224-fba7a13a4f69/ergobaby_omni_360_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/widiku/stargirl_book_online.pdfIn PDF document text
    • https://s3.amazonaws.com/vufupu/food_delivery_vietnam_report.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/773baa53-06e1-4fa9-9d70-e17ea365ab73/numiwusonusosu.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://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e318.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE318 4504 bytes
SHA-256: 228023b4f9a85dce188f0b30ae25f528e75d4ce24b2bd4faa696873bde086b9d
font_01_sfnt_off0000f277.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF277 11712 bytes
SHA-256: bbde4b7d1bff92be52702d4e04bdf0bc995e0f4dc17f0071d54f7f89584c2560
font_02_sfnt_off000113cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x113CF 11424 bytes
SHA-256: 3fe296aed23ef1fc902bd6dc4c85f46fb4067e66b45112ebf4aa7b86affea187
font_03_sfnt_off00013ae4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13AE4 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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