Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a0b9e8f0039f56a…

MALICIOUS

PDF

87.7 KB Created: 2021-03-16 08:04:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 482ec9147f8ae0fb3b67cc0f4a1bfa74 SHA-1: 8940dc228e538bcd327e6d5b981c21d99c9729e7 SHA-256: 1a0b9e8f0039f56afb22606930e610e07a5fef215f42d81f546317e85a042c7e
176 Risk Score

Malware Insights

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

The sample was detected as malicious by ML classifiers and ClamAV, and exhibits characteristics of an advance-fee scam. The document body, though truncated, suggests a lure related to a 'vehicle sale agreement'. The presence of multiple external URIs, including suspicious domains like 'ponafet.ru' and 'mivetys.xyz', indicates a likely attempt to redirect the user to a malicious site for phishing or further payload delivery. The heuristic 'SE_LOLBIN_RUN_COMMAND' also suggests potential execution of commands.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://ponafet.ru/award?keyword=vehicle+sale+agreement+format+in+english+pdf
    • http://fumigatoff.online/how_many_generations_of_amazon_fire_tablets_are_there4dmfn.pdf
    • https://static.s123-cdn-static.com/uploads/4462678/normal_5fde12f688d4f.pdf
    • http://lamovingcompany.com/what_a_man_should_be_quotesyf8nk.pdf
    • http://dhl-order.info/62719893773fkn8b.pdf
    • https://cdn-cms.f-static.net/uploads/4417429/normal_603711f7154f9.pdf
    • http://p-kavkaza.ru/207116457619wcmd.pdf
    • http://mivetys.xyz/60050399433l04ge.pdf
    • https://cdn.sqhk.co/fexejikexew/jfybifC/belzona_1321_product_data_sheet.pdf
    • http://reabook.online/vumajawofudepiwiwikvhvg.pdf
    • https://cdn.sqhk.co/ropobemuma/h24gfvD/xonufigofoxevaresu.pdf
    • http://aazzzry.space/just_dance_4_redeem_codeyfti1.pdf
    • https://cdn-cms.f-static.net/uploads/4426974/normal_604e1610ab991.pdf
    • http://usacarins.com/savage_worlds_deluxe_edgestrzu4.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://f4b9ed98-44c1-44e6-9966-d9817cd43de7.filesusr.com/ugd/9ced5d_569e79bf5f49411fb9611181084e62c1.pdf?index=true
    • http://jududupozibuj.rf.gd/87081539222.pdf
    • http://jibavorom.rf.gd/bowmasters_apk_mod_money.pdf
    • https://8aefc570-8454-48c3-bb63-d4d1067b7ce0.filesusr.com/ugd/5c9621_6fff29a3c9854cd6bca287eda24d0680.pdf?index=true
    • http://tevewexiderar.epizy.com/how_do_i_insert_a_page_break_in_wordpad.pdf
    • https://7a1f2a0d-094a-4466-88af-72a4af93b9fa.filesusr.com/ugd/22739b_160a50108fee452b8e403ef1f8428e24.pdf?index=true
    • https://493f174a-a540-412c-bacb-e5b7b26cbfcf.filesusr.com/ugd/95bb70_13ba795ad3614f4eab2879e88bb483a5.pdf?index=true
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011131.bin
85b692c1c636aed9ab1240d2a7361179fdd6c0849396a06064984f922e967b4f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11131 2828 bytes
font_01_sfnt_off00011b2b.bin
31f336b2f2d980bc57b27e71b6f563a6f296a29526b481499c96a8507c89c1e8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11B2B 5532 bytes
font_02_sfnt_off00012ddc.bin
a00d7d6f25dc0c385c05c573ec1500c00c04a7ef0b822019fdc2894c9c898286		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12DDC 10200 bytes

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