Malicious PDF — malware analysis report

Static analysis result for SHA-256 975b6f98775d5da5…

MALICIOUS

PDF

48.1 KB Created: 2020-08-09 20:25:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fd21150cc404b1daf5db4767c06a60be SHA-1: a04cb89426d6873a322d040ec2cea8dbe8b13bff SHA-256: 975b6f98775d5da5088a48130847cddda2e6cc99e564b6ecb37a4b6d13d12cb7
128 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a large number of external links, many of which point to a redirector service. The document body, though heavily obfuscated, contains a URL that promises a PDF to Word conversion tool, which is a common lure for phishing or malware delivery. The primary malicious URL identified is ttraff.com, which is known for redirecting to malicious content.

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.com/pify?keyword=convert+pdf+file+to+word+format+online
    • http://files.simplyconnectingthedots.com/uploads/1/3/1/0/131070702/c0ed7.pdf
    • http://files.oursaviorsstx.org/uploads/1/3/0/7/130739376/1722031.pdf
    • http://sakojeb.leighannsgallery.com/uploads/1/3/0/8/130873995/9931959.pdf
    • http://files.demesstainedglass.com/uploads/1/3/0/7/130739450/de480.pdf
    • https://cdn.shopify.com/s/files/1/0429/4311/9527/files/chilis_application_form.pdf
    • https://cdn.shopify.com/s/files/1/0430/3542/6970/files/27033158020.pdf
    • https://cdn.shopify.com/s/files/1/0436/5628/2265/files/poultry_feed_formulation_manual_kenya.pdf
    • https://cdn.shopify.com/s/files/1/0434/5852/7397/files/24638220112.pdf
    • https://cdn.shopify.com/s/files/1/0430/6767/0689/files/35920131284.pdf
    • https://cdn.shopify.com/s/files/1/0429/3961/3347/files/punonibifafaxudavuv.pdf
    • https://cdn.shopify.com/s/files/1/0434/0721/2709/files/39470830987.pdf
    • https://cdn.shopify.com/s/files/1/0433/4118/5189/files/defititugobusabenuzedak.pdf
    • https://cdn.shopify.com/s/files/1/0430/6881/7562/files/raperexexutelul.pdf
    • https://cdn.shopify.com/s/files/1/0440/6237/6101/files/thermal_conductivity_of_metals.pdf
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/isomerism_in_organic_compounds.pdf
    • https://cdn.shopify.com/s/files/1/0433/5324/3816/files/lapiwupuzapo.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/1/0436/5628/2265/files/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007dc5.bin
b762c3ab896a968ea5a03f04318cec61827c20c99457cff45c727b331f1a8427
pdf-font-stream PDF embedded font (sfnt) at offset 0x7DC5 5068 bytes
font_01_sfnt_off00008f00.bin
ed33164e366cb89a3cb9756e7090e556fa3e7673cebd4d3d86b6cb89e6826d90
pdf-font-stream PDF embedded font (sfnt) at offset 0x8F00 10500 bytes