Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ebd28e6c02b599b…

MALICIOUS

PDF

46.8 KB Created: 2020-08-29 07:44:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cffe109bfdd218ec6b6c47afa460c70e SHA-1: cdccb8d7315644266753350fb26674d26ff115dd SHA-256: 8ebd28e6c02b599bb4cd99160e781c61dad313e0dade63679a14d57bb843c57f
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains embedded links, one of which points to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/wix?keyword=pro+tools+quicktime', suggesting a lure to download or access malicious content. The presence of numerous links to Shopify-hosted PDFs, including one identified as a potential download, further supports a delivery mechanism for malware or phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • 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://ttraff.com/wix?keyword=pro+tools+quicktime
    • https://cdn.shopify.com/s/files/1/0430/2218/8701/files/jab_comix_download.pdf
    • https://cdn.shopify.com/s/files/1/0448/3586/4736/files/45598164098.pdf
    • https://cdn.shopify.com/s/files/1/0461/7338/8953/files/basic_english_speaking_course_free.pdf
    • https://cdn.shopify.com/s/files/1/0439/3140/2395/files/encuentro_de_adolescentes_evangelizadores_arcoiris.pdf
    • https://cdn.shopify.com/s/files/1/0428/5700/5222/files/fofibezavewulufisan.pdf
    • https://cdn.shopify.com/s/files/1/0437/6172/9685/files/zopalonosofarogozu.pdf
    • https://cdn.shopify.com/s/files/1/0431/6567/9776/files/photo_album_maker_apk.pdf
    • https://cdn.shopify.com/s/files/1/0436/3413/1104/files/rimemelivevadivetixow.pdf
    • https://cdn.shopify.com/s/files/1/0431/2635/8173/files/62452787901.pdf
    • https://cdn.shopify.com/s/files/1/0433/2371/9845/files/92669953870.pdf
    • https://cdn.shopify.com/s/files/1/0451/1078/8261/files/losaxixota.pdf
    • https://cdn.shopify.com/s/files/1/0431/4670/7104/files/5157540778.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_off00007a3f.bin
d9555a4a21f86dc9e70b2f8527f6e2207481e13795d71c0b8e32a42d9a05777f
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A3F 4924 bytes
font_01_sfnt_off00008aec.bin
c1745baef87f2d6d0a9e23afdd4ae7b18c6794378dcbd00c0a589869ca063fbf
pdf-font-stream PDF embedded font (sfnt) at offset 0x8AEC 10500 bytes