Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8be11adaca1c2ae…

MALICIOUS

PDF

33.1 KB Created: 2020-08-18 13:29:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 79cec556b179af7fe11ecc1dc7de2b00 SHA-1: 64e921d37f5bc3f92e41b92801ff03e8717e2d72 SHA-256: c8be11adaca1c2ae326de14324948d2873252bb36a97ad22a60cc678f6519ff1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a social engineering lure, instructing the user to install a browser extension. It embeds numerous links, with the primary malicious link directing to a redirector service. This suggests the document is part of a phishing or malware distribution campaign, likely aiming to steal credentials or deliver further payloads.

Heuristics 4

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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.com/pify?keyword=roboform+chrome+extension+missing
    • http://jezekonej.desmoinesmarina.com/uploads/1/3/0/8/130874493/7836351.pdf
    • http://files.madeincommon.com/uploads/1/3/2/6/132681579/megew_luribi_pawiruni_benomasatedumow.pdf
    • http://files.winghamprc.org/uploads/1/3/0/8/130814169/ff064c6a76.pdf
    • http://files.clipture.net/uploads/1/3/0/9/130969543/7a971979da11.pdf
    • http://files.allergyeasyliving.com/uploads/1/3/0/8/130814200/kilevala-sisav-kazogawu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9354/1532/files/restaurant_business_plan_template_sample.pdf
    • https://cdn.shopify.com/s/files/1/0438/8156/2280/files/9342029482.pdf
    • https://cdn.shopify.com/s/files/1/0433/5943/6951/files/descriptive_statistics_notes.pdf
    • https://cdn.shopify.com/s/files/1/0432/4855/0050/files/private_school_interview_questions_for_teachers.pdf
    • https://cdn.shopify.com/s/files/1/0429/3256/8220/files/background_drawing.pdf
    • https://cdn.shopify.com/s/files/1/0431/3828/5725/files/56934991732.pdf
    • https://cdn.shopify.com/s/files/1/0428/5317/1356/files/military_alphabet_and_meaning.pdf
    • https://cdn.shopify.com/s/files/1/0434/1773/1229/files/bapeso.pdf
    • https://cdn.shopify.com/s/files/1/0432/2738/1924/files/93029030428.pdf
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/24564758473.pdf
    • https://cdn.shopify.com/s/files/1/0428/7938/5756/files/warhammer_40k_apocalypse_7th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0433/9826/7029/files/greasyfork_classic_google_favicon.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_off00004666.bin
4623ed8d80f24a3cb9db24addf0f36ee4ab5e8dc7f04151645d220ebe06c654e
pdf-font-stream PDF embedded font (sfnt) at offset 0x4666 5268 bytes
font_01_sfnt_off0000583a.bin
d35584c9c993417ff4c4ad921c06a9ed1f60a18b3566fde07d5329c6380e48d4
pdf-font-stream PDF embedded font (sfnt) at offset 0x583A 9148 bytes