Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb33a71be77ca74d…

MALICIOUS

PDF

41.5 KB Created: 2020-08-24 08:38:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ca2489ba026ace30ceafb8f31c24d98 SHA-1: 5a716605bf722ed53c1a61217e4730615c7d71e5 SHA-256: eb33a71be77ca74d3d3b46a52173b3dde48e83e754a79392652b10e6c5a4d845
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=baritone+horn+sheet+music'. The document body, though heavily obfuscated, contains references to sheet music and URLs, suggesting a lure. The presence of a link farm heuristic further indicates malicious intent to distribute links. The primary attack vector appears to be tricking the user into clicking the malicious link disguised within the document.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ttraff.ru/pify?keyword=baritone+horn+sheet+music
    • http://gabitos.centralillinoishydrografx.com/uploads/1/3/0/8/130874676/pidubebaguk_dofaliradapekop_legoromumedodo_wamakidexofu.pdf
    • http://japamaluv.astaseattle.org/uploads/1/3/1/6/131606354/nuvomusemudedun_vulegopa_lefug.pdf
    • https://cdn.shopify.com/s/files/1/0434/2723/3954/files/autobus_marbella_malaga_aeropuerto.pdf
    • https://cdn.shopify.com/s/files/1/0427/9166/5830/files/didukudalin.pdf
    • https://cdn.shopify.com/s/files/1/0432/5369/4626/files/lexototeguki.pdf
    • https://cdn.shopify.com/s/files/1/0432/5123/7022/files/70364772179.pdf
    • https://cdn.shopify.com/s/files/1/0437/7637/6983/files/how_to_make_a_webhook_discord.pdf
    • https://cdn.shopify.com/s/files/1/0428/1755/2543/files/xumutarijopaxew.pdf
    • https://cdn.shopify.com/s/files/1/0428/7738/6918/files/32626034615.pdf
    • https://cdn.shopify.com/s/files/1/0430/3526/3138/files/wordly_wise_3000_book_8_lesson_12.pdf
    • https://cdn.shopify.com/s/files/1/0445/8492/7396/files/auditoria_administrativa_evaluacion_y_diagnostico_empresarial_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0435/2681/5895/files/jutezujajev.pdf
    • https://cdn.shopify.com/s/files/1/0435/1783/7467/files/atkins_fisicoquimica_descargar.pdf
    • 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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000660a.bin
412e9801e6e78166aecf6a3ec91f33419f16d8c363e3eecf1016602a0a055148		 pdf-font-stream PDF embedded font (sfnt) at offset 0x660A 5056 bytes
font_01_sfnt_off00007709.bin
9409874d372a7c99a4f9620607a53481cc6316b30ca6104392fe385fb632f696		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7709 10220 bytes

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