Malicious PDF — malware analysis report

Static analysis result for SHA-256 a07da75aacec01e0…

MALICIOUS

PDF

98.6 KB Created: 2021-03-12 09:05:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 1ca17fd414dc02c97f6379a3f6fe2bb9 SHA-1: 905c75228e9203876f9ed49c54cd47f20c562180 SHA-256: a07da75aacec01e0908b17ea042d221a35839259fb2eebc354873d39f7f30a52
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, identified by heuristics and a machine learning classifier as malicious. The document body, though heavily obfuscated, contains text that appears to be a lure. The primary malicious indicator is the external URI, which is likely used to redirect the user to a phishing or scam page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9968

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://lozipotod.ru/strik?utm_term=you+should+meaning+in+telugu PDF link annotation
    • https://cdn.sqhk.co/noxivudeva/ggRiiif/energy_joensuu_sulkapallo.pdfIn PDF document text
    • http://jikusofare.mywebcommunity.org/63256396947.pdfIn PDF document text
    • http://miromawetibikew.mywebcommunity.org/thinkorswim_fees_forex.pdfIn PDF document text
    • https://bejamipoxef.weebly.com/uploads/1/3/5/3/135318713/kugejidezin.pdfIn PDF document text
    • http://wonder-ita.space/778104900955ajdx.pdfIn PDF document text
    • https://jitavemalidev.weebly.com/uploads/1/3/1/8/131871699/59203ad47f4d6.pdfIn PDF document text
    • https://midodelawipage.weebly.com/uploads/1/3/4/5/134585137/marezoxos.pdfIn PDF document text
    • http://repair-kvadrokopterov.ru/braven_stryde_360_owners_manual7sutk.pdfIn PDF document text
    • https://fuwipinax.weebly.com/uploads/1/3/4/0/134016709/14ceec9.pdfIn PDF document text
    • https://cdn.sqhk.co/naboxolat/hb00FRl/gipijokotofosimugo.pdfIn PDF document text
    • https://cdn.sqhk.co/fabozesemi/hhiiW7P/volekubobeji.pdfIn PDF document text
    • https://dugaposiga.weebly.com/uploads/1/3/4/8/134857723/sosirusubomis.pdfIn PDF document text
    • http://sugameloxufe.mywebcommunity.org/internal_audit_jobs_in_south_africa.pdfIn PDF document text
    • https://cdn.sqhk.co/mebosuxular/0Phfgfm/36412855918.pdfIn PDF document text
    • http://astropsychology.site/ziwevadiky7v.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.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/debamijizozexo/everlasting_summer_alisa_good_ending_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/wuzalugiseto/20024372457.pdfIn PDF document text
    • https://s3.amazonaws.com/guwutivupudutu/34275787215.pdfIn PDF document text
    • https://148d48ef-a78d-4e34-a4d2-755cfbac042a.filesusr.com/ugd/ccca9b_cc7f9f5ab50b44db9b6a38df1970974a.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/sorogamat/tiwulewobipazoxuson.pdfIn PDF document text
    • https://c6926203-1eb9-401e-9afa-11f61f201807.filesusr.com/ugd/685707_c1a41829e23744c6a58fa14b550b0db3.pdf?index=trueIn PDF document text
    • https://229c3593-bb94-4e5d-9b9f-ca3747df48ef.filesusr.com/ugd/145364_79593ad27a334ec2b8145af6430b3928.pdf?index=trueIn PDF document text
    • http://zujisofivo.onlinewebshop.net/john_deere_320_skid_steer_service_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/pafiganovavi/barge_boards_roof_sheeting.pdfIn PDF document text
    • https://b5b764bc-4fc6-48d7-9a4b-423a4d05f225.filesusr.com/ugd/3f2390_7336e6756a274bc99dabd09d11171778.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off000152c1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x152C1 17916 bytes
SHA-256: 6947e4445bf7d7a0c9dc276e7b6db76348552194390bd2c527e9cc817f74fd6b
font_00_sfnt_off0001023c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1023C 4988 bytes
SHA-256: 523877cefa2d2f979cf44633791f08f92d9788510fee325f61bb76b8cf3c5b71
font_01_sfnt_off00011303.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11303 8440 bytes
SHA-256: 5e9e24bc6f595a61242606df3f17c446ebb18eb6680ae7f279ee72624cfba9f3
font_02_sfnt_off00012c70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C70 11192 bytes
SHA-256: 7602a13d4367959a06567a1af14ceabd09c3cf04ded09daa48b98b4181356823
font_04_sfnt_off00016de4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16DE4 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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