Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7f6be580c047b39…

MALICIOUS

PDF

82.6 KB Created: 2020-08-26 15:22:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 913e8f8c38231a705f5b319b6c9468d9 SHA-1: 7d8b881834b4565486be3d6ea2b993e075144f38 SHA-256: b7f6be580c047b391d29ca34a6a3c274f3fc472ec354c94899d6b8710b9369ae
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, embedding a large number of external links, with the primary one leading to a Shopify domain. The document body, though partially corrupted, contains the title 'Aceleraci 3n de coriolis' and references 'wkhtmltopdf', suggesting a lure related to acceleration or physics, likely to entice clicks on the embedded malicious link.

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=aceleraci%25C3%25B3n+de+coriolis
    • http://files.primrosetable.com/uploads/1/3/1/6/131637652/9455928.pdf
    • http://files.tracethemitten.com/uploads/1/3/1/4/131483772/d583de4a96.pdf
    • http://nakedale.rubyeyes.com/uploads/1/3/2/8/132814930/fiwotudedebime_gatar.pdf
    • http://files.atomicconcepts.net/uploads/1/3/0/7/130776096/1375819dbec6.pdf
    • http://files.southerntierstarlites.com/uploads/1/3/2/7/132740747/folomijujesufim.pdf
    • https://cdn.shopify.com/s/files/1/0436/9245/8152/files/vizisoxevamajovi.pdf
    • https://cdn.shopify.com/s/files/1/0432/8911/6840/files/8698909538.pdf
    • https://cdn.shopify.com/s/files/1/0430/6331/2535/files/biomechanics_of_sprinting.pdf
    • https://cdn.shopify.com/s/files/1/0429/1480/7974/files/winovodidoluxopapiwu.pdf
    • https://cdn.shopify.com/s/files/1/0440/8341/3142/files/moxawexotafupidonur.pdf
    • https://cdn.shopify.com/s/files/1/0431/7682/0890/files/96169134097.pdf
    • https://cdn.shopify.com/s/files/1/0447/8880/9879/files/biotecnologia_animal_e_vegetal.pdf
    • https://cdn.shopify.com/s/files/1/0433/4023/4917/files/concierto_aranjuez_violin.pdf
    • https://cdn.shopify.com/s/files/1/0430/6134/6466/files/tizexerozufosabunitexi.pdf
    • https://cdn.shopify.com/s/files/1/0428/0965/5462/files/bookkeeping_basics_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0430/9408/1687/files/zofevobuduzofakipafaf.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/
    • https://cdn.shopify.com/s/files/1/0432/8911/6840

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e24f.bin
28315795c987dbeb936e3e43c25b62098ca0c285a1c34d60fe5956c15ea1a35b
pdf-font-stream PDF embedded font (sfnt) at offset 0xE24F 5056 bytes
font_01_sfnt_off0000f33e.bin
7c8ce8cb9a52de97a85492934bbfb692134b7cf133e0db8b3fb40b188a0db801
pdf-font-stream PDF embedded font (sfnt) at offset 0xF33E 16848 bytes
font_02_sfnt_off000125ea.bin
bf3a0bfa9518011ffe6e9cee8942bc45375200bd6cf014f827a6a437f93de08d
pdf-font-stream PDF embedded font (sfnt) at offset 0x125EA 16188 bytes