Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f60f43c8c1323b4…

MALICIOUS

PDF

46.9 KB Created: 2020-08-04 08:26:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8723598496e7e571419a95a2c3c790e4 SHA-1: 5c7cbe124282b31999a36b9fa06b0c626f20fa5f SHA-256: 8f60f43c8c1323b4c355ca39f8c0de2b7b9926b8f449675f72525ccaa905b575
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one specifically to a known malicious redirector at 'ttraff.ru'. The document body is heavily obfuscated but contains references to 'Poesias fernando pessoa pdf', likely a lure to disguise the malicious intent. The heuristic firings indicate this is a malicious redirector and a link farm, suggesting the primary goal is to direct users to malicious sites.

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.ru/pify?keyword=poesias+fernando+pessoa+pdf
    • http://files.everybodysaikido.com/uploads/1/3/1/3/131384101/nojosixovuwiwoji.pdf
    • http://files.twobentspokes.com/uploads/1/3/2/6/132681336/344c6a.pdf
    • http://files.94x50pod.com/uploads/1/3/0/7/130739480/zugesibetag.pdf
    • https://cdn.shopify.com/s/files/1/0435/8298/0259/files/mituliketowovezaroti.pdf
    • https://cdn.shopify.com/s/files/1/0429/1421/8151/files/84180504429.pdf
    • https://cdn.shopify.com/s/files/1/0433/4167/6694/files/40667017825.pdf
    • https://cdn.shopify.com/s/files/1/0429/5963/4591/files/dugavewarixuloni.pdf
    • https://cdn.shopify.com/s/files/1/0433/8027/7406/files/35072287472.pdf
    • https://cdn.shopify.com/s/files/1/0434/5331/7272/files/calculus_problems.pdf
    • https://cdn.shopify.com/s/files/1/0431/4130/0380/files/firawogikesamuwifosezo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0792/5664/files/gavapoperamolevotaxozije.pdf
    • https://cdn.shopify.com/s/files/1/0430/0954/0257/files/braves_schedule_2020_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0431/6826/8456/files/43106901185.pdf
    • https://cdn.shopify.com/s/files/1/0433/4419/9848/files/need_for_speed_carbon_cheats_xbox360.pdf
    • https://cdn.shopify.com/s/files/1/0431/3609/0273/files/81980175342.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_off00006ce0.bin
b131bb989f82f15816551ace95c6fd2ed7bc4717aabdf4ed569e8927f0ec91bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CE0 5004 bytes
font_01_sfnt_off00007dfc.bin
86722ddbc6f8c04fc45f5c13e356592c09c0a04f1f25b43433f0ff1c9eb2e33e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DFC 16424 bytes

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