Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd882671c6369350…

MALICIOUS

PDF

92.9 KB Created: 2021-03-03 04:52:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 362f67c3ad4b7e4a11ebbf67ec414fb6 SHA-1: 042d3cc416ef99d53ac83723f1a4ba63ec8811ef SHA-256: fd882671c63693509c603e2173e51d383e3c768d6c121ea65f8d928719bd58cf
96 Risk Score

Malware Insights

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

The PDF file contains a heuristic indicating an external URI, specifically pointing to 'https://kuzutuzo.ru/wix?keyword=grindr+apk+android+4.0'. This URL is presented in a way that suggests it's a search result, likely to trick users into clicking it. ClamAV also detected this file as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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=grindr+apk+android+4.0 PDF link annotation
    • https://cdn.sqhk.co/madufuxenuw/hija2H0/visiwuwujuxedopetej.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453901/normal_602f42b7eb834.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388422/normal_5ff0f08d8520e.pdfIn PDF document text
    • https://cdn.sqhk.co/fezajuwu/aVihij4/rebogajog.pdfIn PDF document text
    • http://xisajole.iblogger.org/colors_bangla_tv_guide.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490244/normal_603e916617bb1.pdfIn PDF document text
    • http://xudogiborijum.66ghz.com/gentoo_kernel_upgrade_guide.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492892/normal_6010c4b3db367.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368747/normal_603ecd43a1015.pdfIn PDF document text
    • https://cdn.sqhk.co/vejurumilef/fZhgUZ3/54759976224.pdfIn PDF document text
    • https://cdn.sqhk.co/zewumirapeb/VifEhix/xufivizolided.pdfIn PDF document text
    • https://cdn.sqhk.co/dikozogub/qbogiji/labusebetipe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://s3.amazonaws.com/varolexexus/restaurants_antibes_guide_michelin.pdfIn PDF document text
    • https://s3.amazonaws.com/pokorevalaxex/27746560422.pdfIn PDF document text
    • https://s3.amazonaws.com/kelukakeb/korean_drama_chinese_subtitle_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jedobufudajewu/48402522558.pdfIn PDF document text
    • https://s3.amazonaws.com/lerezazo/dimethylformamide_methanol_azeotrope.pdfIn PDF document text
    • http://wutivufugisev.epizy.com/75934495483.pdfIn PDF document text
    • https://s3.amazonaws.com/satuja/brahman_whatsapp_status.pdfIn PDF document text
    • https://s3.amazonaws.com/mujesogi/xakudotolijowag.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.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f399.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF399 3776 bytes
SHA-256: d7bea84525bbefdb5850337f7daf5ff5554917552b257dd0afd4411b02ea0fc5
font_01_sfnt_off00010128.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10128 5100 bytes
SHA-256: 9934df21e6be844580de41bf2b075c172ebcebb88a1da59dc3d61f891526357f
font_02_sfnt_off0001129e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1129E 4140 bytes
SHA-256: 2a2f73c0ee504ae8509221dab9a50e72e6c400a18e3952d3eee660ba18a0c3b1
font_03_sfnt_off00011fc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11FC2 2108 bytes
SHA-256: 5fc9e2cd4e7ad04544edda2023dd698132b65daf167a61e09de9fd8de66d8b52
font_04_sfnt_off0001298d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1298D 6148 bytes
SHA-256: 488ffee5e9c33bcc1f3f00aec749f35977d0cdd209ffadaee35194d66ecc177d
font_05_sfnt_off0001396d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1396D 13692 bytes
SHA-256: ef51b9c17d034dc4986ac7c15a56a2b4dbcbbfe90e3a1a9f1d19f8e569d33e02

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