Malicious PDF — malware analysis report

Static analysis result for SHA-256 96db23e8e1000118…

MALICIOUS

PDF

49.7 KB Created: 2020-08-18 15:46:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b9f9038c629faaa9167debbb9b29b7d SHA-1: 7313eb41a062047153ccbcf037990abc411709d6 SHA-256: 96db23e8e10001189c65e2ba33ec77315ad1a6f3dd15969cd01993743691b664
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains references to the URL 'https://ttraff.com/pify?keyword=unf+bolt+tightening+torque+chart+pdf', suggesting a lure to a malicious site. The presence of a link farm heuristic further indicates an attempt to distribute malicious content through a large number of external links.

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=unf+bolt+tightening+torque+chart+pdf
    • http://files.9lazy3leather.com/uploads/1/3/1/4/131483337/tirorawobadox-vovegumase-vuseneguvozog.pdf
    • http://tukomaje.sensoryfriends.com/uploads/1/3/0/7/130739113/rosewitegawe.pdf
    • http://files.divinedonutsusa.com/uploads/1/3/2/6/132683330/fozexofowadel-zewenavaxuse-nereki-labedum.pdf
    • http://files.bistrollinc.com/uploads/1/3/1/1/131164002/bobiz.pdf
    • http://files.arphathip.com/uploads/1/3/0/7/130739553/mawaja_gefabepim_tobibexajad.pdf
    • https://cdn.shopify.com/s/files/1/0438/4371/5222/files/98319822926.pdf
    • https://cdn.shopify.com/s/files/1/0433/6038/7227/files/mubomokevazozaga.pdf
    • https://cdn.shopify.com/s/files/1/0428/4170/2567/files/25558120839.pdf
    • https://cdn.shopify.com/s/files/1/0450/3198/1220/files/printable_wedding_invitations_templates_free.pdf
    • https://cdn.shopify.com/s/files/1/0438/2988/7136/files/78227787620.pdf
    • https://cdn.shopify.com/s/files/1/0437/3276/2785/files/65481865136.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dejozetopugewafapo.pdf
    • https://cdn.shopify.com/s/files/1/0428/7873/0403/files/antigone_jean_anouilh_lewis_galantiere.pdf
    • https://cdn.shopify.com/s/files/1/0432/3488/5796/files/92683991023.pdf
    • https://cdn.shopify.com/s/files/1/0431/5152/4008/files/79964755522.pdf
    • https://cdn.shopify.com/s/files/1/0429/7677/2250/files/60317955857.pdf
    • https://cdn.shopify.com/s/files/1/0434/2356/3925/files/latababisomixifoletoz.pdf
    • https://cdn.shopify.com/s/files/1/0433/3341/9160/files/furezelebutepujen.pdf
    • https://cdn.shopify.com/s/files/1/0437/5547/1006/files/arte_de_la_prudencia_baltasar_gracin.pdf
    • https://cdn.shopify.com/s/files/1/0435/2901/1359/files/crown_of_thorns_worksheet.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_off000078a5.bin
c6a6fe96acdafbaf38b7b0722a22205fd1db75c5b3ee107a2ac4d1fcae47ba12
pdf-font-stream PDF embedded font (sfnt) at offset 0x78A5 5496 bytes
font_01_sfnt_off00008b36.bin
4f870fc4844b5266de13bce0f28d988d7cb91069949ef567ec28ccbfa4cf1b9a
pdf-font-stream PDF embedded font (sfnt) at offset 0x8B36 14748 bytes