Malicious PDF — malware analysis report

Static analysis result for SHA-256 2dfad596e86f3f97…

MALICIOUS

PDF

44.4 KB Created: 2020-08-17 10:46:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b0f54532ac4c9cd860678281ac312503 SHA-1: 09c87c4d079042b8f91850a322d66bb444609fc3 SHA-256: 2dfad596e86f3f97e24c2ef96ad6d118d457126c5b438fed1f8c3df23444ac5d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1566 Phishing

The PDF contains a lure for remote support tools, instructing the user to install or connect with such software. It also features a mass external PDF link farm, with one URL pointing to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains references to the malicious URL and other PDF links, suggesting a social engineering attempt to trick the user into downloading further malicious content or granting remote access.

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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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=spanish+learning+books+for+beginners+pdf
    • http://files.theskinandlashlady.com/uploads/1/3/0/8/130814042/zapavu-xejaragox-pabigugedaze-xesefibupewot.pdf
    • http://mazeru.datamakers.com/uploads/1/3/0/8/130814448/b9380f36.pdf
    • https://cdn.shopify.com/s/files/1/0428/3557/4943/files/kazuviwalaguzilelureruzu.pdf
    • https://cdn.shopify.com/s/files/1/0430/8611/9079/files/segopivixolo.pdf
    • https://cdn.shopify.com/s/files/1/0434/9722/6402/files/67167098928.pdf
    • https://cdn.shopify.com/s/files/1/0436/9488/2984/files/concepto_de_tanatologia_forense.pdf
    • https://cdn.shopify.com/s/files/1/0437/7985/0397/files/40964659465.pdf
    • https://cdn.shopify.com/s/files/1/0434/4732/0728/files/suit_skin_minecraft.pdf
    • https://cdn.shopify.com/s/files/1/0440/6480/0918/files/materials_selection_in_mechanical_design_ashby_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/7371/5880/files/1st_year_all_books.pdf
    • https://cdn.shopify.com/s/files/1/0433/9620/2652/files/67295428763.pdf
    • https://cdn.shopify.com/s/files/1/0431/5525/9560/files/21282315135.pdf
    • https://cdn.shopify.com/s/files/1/0431/3694/2234/files/mejoretaketifejanefuma.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/
    • https://cdn.shopify.com/s/files/1

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e5c.bin
68f25f3f4818514b27790d480daf587aebbff1813e85f138f72aca46565cf0bf
pdf-font-stream PDF embedded font (sfnt) at offset 0x6E5C 5608 bytes
font_01_sfnt_off00008155.bin
7970696a52b5c9de7fc38c72a0661288608931040d7fd5962873a63a080431f1
pdf-font-stream PDF embedded font (sfnt) at offset 0x8155 10288 bytes