Malicious PDF — malware analysis report

Static analysis result for SHA-256 58b1e1262eb69be1…

MALICIOUS

PDF

55.4 KB Created: 2020-08-30 05:06:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c7ce34a3bde2b528fa0188a71248f2e5 SHA-1: 0c0d199945649c629a3ac2e9f4dc62ed754b8520 SHA-256: 58b1e1262eb69be12dd39a11c93958756466be3bd2882bf7ee369bdfbd97060b
140 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com', which is used in conjunction with a lure for free credits. Additionally, it exhibits a PDF link farm behavior, hosting numerous links to other PDFs, predominantly on 'cdn.shopify.com'. The document body, though heavily obfuscated, contains the primary malicious URL and references to other PDFs. No scripts were extracted from this sample.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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/wix?keyword=badoo+free+credits+generator+no+survey
    • https://cdn.shopify.com/s/files/1/0434/0632/7975/files/free_download_the_exorcist_1973_movi.pdf
    • https://cdn.shopify.com/s/files/1/0433/5714/3199/files/zugarawar.pdf
    • https://cdn.shopify.com/s/files/1/0432/4674/7803/files/pewdiepie_minecraft_skin.pdf
    • https://cdn.shopify.com/s/files/1/0430/3503/3757/files/grande_encyclopdie_larousse.pdf
    • https://cdn.shopify.com/s/files/1/0434/6953/7432/files/50654946468.pdf
    • https://cdn.shopify.com/s/files/1/0460/1620/0863/files/componentes_del_proceso_de_enseanza.pdf
    • https://cdn.shopify.com/s/files/1/0430/0403/5221/files/medical_english_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0428/7571/5743/files/getarawegabesewulagepiz.pdf
    • https://cdn.shopify.com/s/files/1/0433/9384/3356/files/tuesday_with_morrie_quotes.pdf
    • https://cdn.shopify.com/s/files/1/0430/7193/0519/files/52369162291.pdf
    • https://cdn.shopify.com/s/files/1/0429/8083/5482/files/91534014923.pdf
    • https://cdn.shopify.com/s/files/1/0436/3796/4960/files/fafudokejapezojipa.pdf
    • https://static.usrfiles.com/ugd/ae059d_7cc41ced3b4247419130181590f2c44d.pdf
    • https://static.usrfiles.com/ugd/5b5da7_ff8dc7e1a9da416bb455dae4ff213584.pdf
    • https://static.usrfiles.com/ugd/409ca8_72ef695f3a2a4ba390ab9966cf8d8de5.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000069cf.bin
c8f7977f7fbec3c7e35771f1485e567f4b97d7c8417613413a34e01d1746e4bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69CF 4092 bytes
font_01_sfnt_off0000786d.bin
2de0eee881f3f725d4654860d15ada571ba201429281c2605f8d64d10a3a6932		 pdf-font-stream PDF embedded font (sfnt) at offset 0x786D 5368 bytes
font_02_sfnt_off00008ac8.bin
e2f5263280dcb74e4535a9a530cabca2707a1ab4f1d1da5129e3e3dff30be371		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8AC8 15204 bytes
font_03_sfnt_off0000babe.bin
18f56b7fae04e07bc119a468ad323bdda099da77b0772854d1c47cc1f39b9f3b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBABE 16144 bytes

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