Malicious PDF — malware analysis report

Static analysis result for SHA-256 21ff83d3da0b0fa2…

MALICIOUS

PDF

39.3 KB Created: 2020-08-24 00:26:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8bd4b5251a0316a47ff5e7aab7895f31 SHA-1: 3febd600e214c0b3fbfc9f96870fcced6f9f7248 SHA-256: 21ff83d3da0b0fa22ecd0d08b91f76b3b28e50a277c45de41b444d264e855f89
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This URL is part of a link farm designed to attract users with keywords like 'gta v android aptoide'. The document body and embedded links further support this by providing a URL that leads to a PDF file, likely intended to trick users into downloading potentially malicious content. The presence of numerous external PDF links suggests a coordinated effort to distribute content through SEO manipulation.

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=gta+v+android+aptoide
    • http://nuxuni.lambersfisher.com/uploads/1/3/0/8/130813453/pajurireduvobed.pdf
    • http://files.peoplematteralways.com/uploads/1/3/1/3/131398605/647907.pdf
    • http://files.huntingdonbedandbreakfast.com/uploads/1/3/1/3/131381799/fac38.pdf
    • http://files.monaconsulting.com/uploads/1/3/0/7/130775174/bebabuxavo.pdf
    • https://cdn.shopify.com/s/files/1/0433/4800/0922/files/42988493267.pdf
    • https://cdn.shopify.com/s/files/1/0433/9400/7201/files/mark_fisher_ghosts_of_my_life.pdf
    • https://cdn.shopify.com/s/files/1/0430/3742/5813/files/dumukubodapo.pdf
    • https://cdn.shopify.com/s/files/1/0430/9037/8909/files/81534859690.pdf
    • https://cdn.shopify.com/s/files/1/0434/9345/8070/files/riguxobobimaxos.pdf
    • https://cdn.shopify.com/s/files/1/0434/8038/3653/files/88831541849.pdf
    • https://cdn.shopify.com/s/files/1/0440/4484/5206/files/nusolajoredezuzolom.pdf
    • https://cdn.shopify.com/s/files/1/0437/7742/5565/files/oxigenoterapia_anestesiologia.pdf
    • https://cdn.shopify.com/s/files/1/0431/6836/6760/files/little_helper_osrs.pdf
    • https://cdn.shopify.com/s/files/1/0432/3383/7224/files/27607831088.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_off0000592e.bin
08cc56d968c0882fae8f520429030334992a0fe3da40b206550c71360d6d7faf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x592E 4832 bytes
font_01_sfnt_off000069b6.bin
c74f76fa857b6cae20e6a43fb04c6f909bc8df3c61be8b3f8fba9f486c4a3383		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69B6 11212 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.