Malicious PDF — malware analysis report

Static analysis result for SHA-256 01f4fabb33f62bc8…

MALICIOUS

PDF

84.9 KB Created: 2021-05-13 01:48:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 6c6298824160adb6061b6685bc0889cd SHA-1: 8f2354189f9b06a8ea5e92e90f2f73a89dda7fcf SHA-256: 01f4fabb33f62bc8b3f9163f799a382e2f1f4acf246726c88bfbeb06f0c065d9
186 Risk Score

Malware Insights

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

The PDF file contains numerous external links, many pointing to disposable domains and potentially malicious content, as indicated by the 'PDF_SEO_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristics. The document body, though heavily obfuscated, suggests a lure related to vehicle value, aligning with phishing or scam tactics. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://jumiwimov.ru/wb?keyword=how%20much%20is%20a%202013%20jeep%20grand%20cherokee%20worth PDF link annotation
    • http://sellforce.ru/schumacher_se_4022_manual_wheeled_battery_chargerobe0w.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388424/normal_605ef1c604368.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416921/normal_606a94f019327.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377931/normal_606048c73fad2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413865/normal_60658c82a9d50.pdfIn PDF document text
    • http://bcipreactivaperu.com/jepotirizugajabuwamanekxf.pdfIn PDF document text
    • http://pesuloduf.medianewsonline.com/vacuna_varicela_zoster.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490724/normal_606c90839d1c9.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
    • https://2791e1c6-719d-47aa-bdc5-1556df251b63.filesusr.com/ugd/7757c5_32c2a08592d641f2b1432b898764da45.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/a57a95c3-9e08-4be9-8317-126e5ee835da/logebinivamiwo.pdfIn PDF document text
    • http://wudazebej.atwebpages.com/xubitinukuvezeduf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28e43770-7cad-443d-a3f1-8634fd11490f/38876917353.pdfIn PDF document text
    • https://09ec9d85-9312-4337-94d0-b84080e05f2e.filesusr.com/ugd/ac0094_e889022a039843a194953adfc5bc8786.pdf?index=trueIn PDF document text
    • https://459ec6dd-5b69-4322-a182-74abbfaa0e48.filesusr.com/ugd/221eaa_4149938760f14f09ab3ca84d23145af9.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/29981fea-f99a-4286-9eb9-8ff6f1397aa8/marketing_plan_meaning_example.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ea6327f0-6a52-4a16-965a-cb60ca94023c/social_science_research_methodology_workshop_2019.pdfIn PDF document text
    • https://2d2b1dae-c014-4902-97e6-c3f1d56915cd.filesusr.com/ugd/70e5f7_2a5989b5586c47e1b2fc08fcc70d4385.pdf?index=trueIn PDF document text
    • https://33c7e2ec-32fc-4676-a642-9d95a4379e01.filesusr.com/ugd/622218_062f939433ad4a0286df59dbf8fa3aef.pdf?index=trueIn PDF document text
    • https://c480cc3d-c044-45b7-a7fa-747782367dcd.filesusr.com/ugd/a26f59_b66f17a8c5fb42c78b674153b0a6d673.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/d9f0b149-7483-4ddd-bc21-7cefb8826bad/esv_global_study_bible_online.pdfIn PDF document text
    • https://aa0e52d0-3c12-4d86-bfd3-e3284f950a51.filesusr.com/ugd/eb1974_648259c0683b4a2885e4b1599c62d64e.pdf?index=trueIn PDF document text
    • https://2863666b-9d79-467d-9aad-9eeb6dafbdf2.filesusr.com/ugd/6ee3eb_0f695a609f084a6bb769f419af770f2c.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fcb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCB1 6020 bytes
SHA-256: a58c0621fddbfcffafdc3e6d6eb3fea1e6ec489e05fe6295fcac8ef2c0b4999d
font_01_sfnt_off00011119.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11119 11368 bytes
SHA-256: 606984c69acdb35cff042a574bc7296dfd1a2187241af9a39b9aef1feb30a24d
font_02_sfnt_off000137ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x137EC 4324 bytes
SHA-256: ad623bc7c681097dfa1224999cf6cc6072d3ca9a137655dc1129b0261f0b357c

Open this report in the interactive analyzer, or submit your own file for analysis.