Malicious PDF — malware analysis report

Static analysis result for SHA-256 7325654a235ba21f…

MALICIOUS

PDF

80.0 KB Created: 2021-03-14 06:15:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 910e8bba5280eec1c5ab7283710e451e SHA-1: ac0dede43e88d0559656ff4ba16475f7f8b941b6 SHA-256: 7325654a235ba21fc18b8acc599fd29fcd2bc5f364404bc9b1f1b78a0a5a770d
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://pelibifir.ru/aws?utm_term=d%2526d+4e+player%2527s+handbook+pdf+download PDF link annotation
    • http://xariketixagat.mypressonline.com/zisaranawejovekada.pdfIn PDF document text
    • http://robugipunebib.mygamesonline.org/samsung_tablet_ce0168_battery_removal.pdfIn PDF document text
    • http://zumanidoxup.medianewsonline.com/how_to_make_a_specular_map.pdfIn PDF document text
    • https://zepazilarewar.weebly.com/uploads/1/3/4/3/134310653/afa7290294.pdfIn PDF document text
    • https://pofitokibifezaf.weebly.com/uploads/1/3/5/3/135394855/f9cb9b1f275b4fc.pdfIn PDF document text
    • http://dosaxixapaxa.medianewsonline.com/nogozixosowena.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410727/normal_6028b2fb8e340.pdfIn PDF document text
    • http://jafedaroz.iblogger.org/4944816826.pdfIn PDF document text
    • https://jizotigop.weebly.com/uploads/1/3/0/8/130874082/mumogelasaratituwuma.pdfIn PDF document text
    • http://bawilidow.mypressonline.com/74326683052.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421959/normal_602eefd51c3f4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372987/normal_60403b7478883.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377912/normal_6029a4b6ce0ec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368238/normal_602028091002c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460228/normal_601ab656e09c9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366989/normal_603c779bb0c8d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389821/normal_5ff6530e94ebc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388841/normal_6005b1c963a6d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469101/normal_6012b08b12809.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406208/normal_5fe66b6be2e65.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://remigesej.epizy.com/buzamexemowebajavosibug.pdfIn PDF document text
    • http://botibaxar.rf.gd/can_you_negotiate_a_lease_purchase.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_off0000f4aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4AA 3484 bytes
SHA-256: 48524656b3e374db2655985bb23235a78a7fb2c8eb08756719506f3bf9aeaf8e
font_01_sfnt_off00010016.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10016 10644 bytes
SHA-256: adeb50df10746256ab05ccd6ce5e866a1c8e5e1db067f58ae4643ff81e83930c
font_02_sfnt_off00012492.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12492 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c