Malicious PDF — malware analysis report

Static analysis result for SHA-256 31534f944db065aa…

MALICIOUS

PDF

71.2 KB Created: 2020-08-14 23:36:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bcf32d22dc57cc5e33dda2a2c2381c6b SHA-1: 96521ad1083f0deb064267767106df2be8abda07 SHA-256: 31534f944db065aa205b59aa7369c340c5c45f9fc470b0e5088f228620a48ed4
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=arcane+trickster+bladesinger+guide'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on cdn.shopify.com. The document body, though heavily corrupted, contains fragments of the malicious URL and benign-looking document titles, suggesting a lure to external content. No scripts were extracted, but the primary attack vector appears to be social engineering via a malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.cc/pify?keyword=arcane+trickster+bladesinger+guide
    • http://files.perfectpartycakes.com/uploads/1/3/2/6/132683137/raneribip_pefafajapebos_sadoz.pdf
    • https://cdn.shopify.com/s/files/1/0428/1355/4855/files/96880170469.pdf
    • https://cdn.shopify.com/s/files/1/0431/9959/4656/files/22384297402.pdf
    • https://cdn.shopify.com/s/files/1/0432/4275/0114/files/bearing_damage_and_failure_analysis.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/24501063531.pdf
    • https://cdn.shopify.com/s/files/1/0433/0763/0747/files/smith_and_wesson_forum.pdf
    • https://cdn.shopify.com/s/files/1/0431/2449/0397/files/33353163424.pdf
    • https://cdn.shopify.com/s/files/1/0428/4357/0343/files/gegofinazotem.pdf
    • https://cdn.shopify.com/s/files/1/0431/2642/3708/files/modern_arboriculture_shigo.pdf
    • https://cdn.shopify.com/s/files/1/0433/6451/6005/files/xukozowuvubasuti.pdf
    • https://cdn.shopify.com/s/files/1/0437/0753/1432/files/diagrama_bimanual.pdf
    • https://cdn.shopify.com/s/files/1/0428/8721/7319/files/1126305532.pdf
    • https://cdn.shopify.com/s/files/1/0428/1620/9059/files/rogajateriral.pdf
    • https://cdn.shopify.com/s/files/1/0432/2672/6568/files/figasabumuzoxaniwurija.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_off0000daf5.bin
c2dbc49fb29398de5318eb86427d4918950893927f4030b0a9fdf5a8cb6f9418		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDAF5 5300 bytes
font_01_sfnt_off0000ecf5.bin
07685d9e4033dd2ff2bf61bdb73c9a2a169468ea54f9e1d3264271e90e9e8635		 pdf-font-stream PDF embedded font (sfnt) at offset 0xECF5 10192 bytes

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