Malicious PDF — malware analysis report

Static analysis result for SHA-256 eed89cc9daa5392f…

MALICIOUS

PDF

58.3 KB Created: 2020-08-04 00:13:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 63c011afa76cebe04c1ca7605dce75f9 SHA-1: a56f0ea4a15d85ac07504513e752b8cf1c3c7911 SHA-256: eed89cc9daa5392f3eae7f60765f90605258311711e2f123cf59325acd62993d
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. This URL is embedded within the document body, disguised as research methodology content. The file also exhibits characteristics of a link farm, with numerous external links, many of which point to Shopify domains. The primary malicious IOC is the redirector URL, which likely serves as a gateway to further malicious content.

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.com/pify?keyword=nature+and+scope+of+business+research+methodology+pdf
    • http://files.gabimarkhamyoga.com/uploads/1/3/1/6/131637316/juvafevofi-funezidoxeda-vasebe-kesegedinafuno.pdf
    • http://files.alexsarkisian.com/uploads/1/3/1/3/131398054/43a885825b2e523.pdf
    • http://files.kskydonner.com/uploads/1/3/2/6/132681209/5512714.pdf
    • https://cdn.shopify.com/s/files/1/0433/5697/9351/files/no_man_s_sky_multiple_ships.pdf
    • https://cdn.shopify.com/s/files/1/0429/1097/4111/files/6650615687.pdf
    • https://cdn.shopify.com/s/files/1/0431/5987/9841/files/rirav.pdf
    • https://cdn.shopify.com/s/files/1/0434/7189/6736/files/architecture_graduation_projects.pdf
    • https://cdn.shopify.com/s/files/1/0435/2750/4024/files/4873529784.pdf
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/99425969244.pdf
    • https://cdn.shopify.com/s/files/1/0433/2670/1718/files/39091912304.pdf
    • https://cdn.shopify.com/s/files/1/0440/5349/5958/files/35641099155.pdf
    • https://cdn.shopify.com/s/files/1/0430/6088/7705/files/31027763612.pdf
    • https://cdn.shopify.com/s/files/1/0437/6962/6781/files/34368298605.pdf
    • https://cdn.shopify.com/s/files/1/0437/8089/8973/files/69414675055.pdf
    • https://cdn.shopify.com/s/files/1/0427/9956/2911/files/electronica_teoria_de_circuitos_y_dispositivos_electronicos_boylestad_descargar.pdf
    • https://cdn.shopify.com/s/files/1/0427/7128/4135/files/programa_aprender_emprender_y_prosperar.pdf
    • https://cdn.shopify.com/s/files/1/0432/6470/4662/files/17667547133.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_off0000a3ae.bin
e925a7b507ea08de6d6bd3c60e5c5ea74ec30d81b795e221c42334dcf90f0c54
pdf-font-stream PDF embedded font (sfnt) at offset 0xA3AE 5780 bytes
font_01_sfnt_off0000b73f.bin
9bb105711de2b31fc6885ca7f6442357597c448c68442aeab64b85f827d55092
pdf-font-stream PDF embedded font (sfnt) at offset 0xB73F 10704 bytes