Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a17ad534745ee27…

MALICIOUS

PDF

70.9 KB Created: 2021-03-07 07:48:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: ff2cb1340ffa9f3816932d0283153c8a SHA-1: f276e00a2fc71192f28991eeb2fe89a085d03eef SHA-256: 5a17ad534745ee27a4b996b5b02bbea24717422a3ed9ae24aa23eae8232b87b8
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://kuzutuzo.ru/wix?keyword=percent+composition+and+empirical+formula+worksheet+answers PDF link annotation
    • https://zokevuwokonumez.weebly.com/uploads/1/3/4/6/134682223/sebigokavo.pdfIn PDF document text
    • http://kikababono.mywebcommunity.org/jorge_luis_borges_poems.pdfIn PDF document text
    • https://zobegutibeg.weebly.com/uploads/1/3/4/9/134902349/xeluk-vegakolo-gozip-xagezato.pdfIn PDF document text
    • http://neojust.ru/crazy_fruit_and_ice_cream_trujillo_instagramjvi02.pdfIn PDF document text
    • https://gomemetunugup.weebly.com/uploads/1/3/2/7/132712315/e883c.pdfIn PDF document text
    • https://wigobozigor.weebly.com/uploads/1/3/5/3/135345973/f2bd6e385e9.pdfIn PDF document text
    • http://svoydvalend.xyz/fuxutunorogenelubijinezitxtl0j.pdfIn PDF document text
    • http://avbox.org/soundcloud_cracked_apk_iosveo2l.pdfIn PDF document text
    • http://onlinesos.tech/79491744638luux3.pdfIn PDF document text
    • http://fipexen.iblogger.org/cdrl_a002_template.pdfIn PDF document text
    • https://kazugimopizefew.weebly.com/uploads/1/3/1/4/131406381/3444550.pdfIn PDF document text
    • http://gudibetujem.iblogger.org/present_continuous_exercises_for_beginners.pdfIn PDF document text
    • https://pasorizafam.weebly.com/uploads/1/3/4/0/134096756/8507632.pdfIn PDF document text
    • http://nejevefivi.mypressonline.com/71121726853.pdfIn PDF document text
    • https://zulozagadome.weebly.com/uploads/1/3/4/3/134318764/4883971.pdfIn PDF document text
    • https://vokedovewugom.weebly.com/uploads/1/3/5/3/135349322/bijipemivon.pdfIn PDF document text
    • http://mjawebdesign.net/vutatinojofemiregixixobizou9os.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://83c3f193-942a-416e-a48c-63819929e498.filesusr.com/ugd/e54fc7_cf2e57a89e9f4cf7865bbb98156442d4.pdf?index=trueIn PDF document text
    • http://zikimopotefeva.epizy.com/caseinato_de_calcio_informacion_nutricional.pdfIn PDF document text
    • http://jopizegumi.rf.gd/viswasam_ajith_hd_images.pdfIn PDF document text
    • http://tafiwepamubov.atwebpages.com/dulizojafasolusiradunebe.pdfIn PDF document text
    • http://wotidupodugi.myartsonline.com/zenaxoligekusa.pdfIn PDF document text
    • https://6129906d-bc82-46a7-99f5-71793a58af3c.filesusr.com/ugd/d162e3_208ed5c4aba849a0a39e1becf2d650d7.pdf?index=trueIn 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_off0000d712.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD712 5552 bytes
SHA-256: badcf807cfba584881a5cea0fe767d62ee2f2f9f7019b09f3e8aec4def09db26
font_01_sfnt_off0000e9d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9D7 10468 bytes
SHA-256: 58b68b3f15efe2cbf86cc7808096c7fb149f67d282badaba150dfecbafa0ecef

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