Malicious PDF — malware analysis report

Static analysis result for SHA-256 fafda840eb616701…

MALICIOUS

PDF

46.4 KB Created: 2020-08-03 06:17:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: acf8eddb66a69d5468837f6772f52dd4 SHA-1: 1a0c479cb64b5715f0b16af939c83fb38ad9de4f SHA-256: fafda840eb616701ab7b54e68b1b5088d43b49eefcba3727b20f8ea6b4167914
128 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically identified as a malicious redirector. This redirector is associated with the keyword 'guardians+of+the+galaxy+torrent', suggesting a lure to pirated content. The presence of a 'download button' heuristic further supports the attack pattern of tricking users into clicking malicious links. The document body, though heavily obfuscated, contains the same redirector URL.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.ru/pify?keyword=guardians+of+the+galaxy+torrent
    • http://files.cynthiawessling.com/uploads/1/3/0/7/130775308/1029773.pdf
    • http://files.jonathanlumsden.com/uploads/1/3/2/6/132696483/felixujomujawe_guruwobivosa.pdf
    • http://mejibegid.ketonetpasim.com/uploads/1/3/1/4/131453177/gebupapep.pdf
    • http://files.swolfephotography.com/uploads/1/3/1/3/131379830/9456765.pdf
    • http://files.clintoncemetery.org/uploads/1/3/0/9/130969614/julugixeluga.pdf
    • https://cdn.shopify.com/s/files/1/0429/4852/6246/files/33761837687.pdf
    • https://cdn.shopify.com/s/files/1/0437/9164/6880/files/adc_rune_pages_season_6.pdf
    • https://cdn.shopify.com/s/files/1/0431/8406/2622/files/77074782046.pdf
    • https://cdn.shopify.com/s/files/1/0431/9051/7917/files/php_contact_form_script_with_validation.pdf
    • https://cdn.shopify.com/s/files/1/0429/2732/5343/files/1334332749.pdf
    • https://cdn.shopify.com/s/files/1/0431/1325/0965/files/puzax.pdf
    • https://cdn.shopify.com/s/files/1/0440/6679/9766/files/4785961066.pdf
    • https://cdn.shopify.com/s/files/1/0432/8819/9328/files/dixokir.pdf
    • https://cdn.shopify.com/s/files/1/0432/7673/0533/files/75728011586.pdf
    • https://cdn.shopify.com/s/files/1/0433/8266/9461/files/78074282277.pdf
    • https://cdn.shopify.com/s/files/1/0428/6555/7671/files/butebunulunonokinolokeger.pdf
    • https://cdn.shopify.com/s/files/1/0430/3123/2674/files/75311610319.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d92.bin
9586808f9d5965fd096a28341fe38926c8ed8a717f39e31d9b528561de10ba43
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D92 5372 bytes
font_01_sfnt_off00007fd8.bin
a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620
pdf-font-stream PDF embedded font (sfnt) at offset 0x7FD8 1800 bytes
font_02_sfnt_off00008865.bin
cb9a96e7c3d17b65da365a55a0ecb5c4db0147f7b5237f6ccff4d4f5f860b0bd
pdf-font-stream PDF embedded font (sfnt) at offset 0x8865 10592 bytes