Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e05557fcb8ceeca…

MALICIOUS

PDF

34.1 KB Created: 2020-08-24 10:37:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b181ebfedcb1eb01fa8fb7f6f3fd5420 SHA-1: a1e464f48d888f68fac5bf845bbbf953f0dc8c13 SHA-256: 3e05557fcb8ceeca9f414e9e62fffe2624e2166c50eb4af3f7ce4e2af68a29fe
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, characteristic of a link farm. One of these links, 'https://ttraff.com/pify?keyword=celebration+background+images', points to known malicious redirector infrastructure. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, and the document body was largely unreadable, but the presence of the malicious redirector is a strong indicator of malicious intent.

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.com/pify?keyword=celebration+background+images
    • http://taxij.parkcitybrewery.com/uploads/1/3/2/8/132814930/jutikoxukat_viretomesepex.pdf
    • http://files.mikewimmerportraits.com/uploads/1/3/1/8/131871698/3217417.pdf
    • https://cdn.shopify.com/s/files/1/0431/7731/2405/files/gixotivibawigen.pdf
    • https://cdn.shopify.com/s/files/1/0440/0722/7542/files/baby_pictures_app.pdf
    • https://cdn.shopify.com/s/files/1/0435/8176/7848/files/88167600601.pdf
    • https://cdn.shopify.com/s/files/1/0431/2737/3990/files/90573644228.pdf
    • https://cdn.shopify.com/s/files/1/0437/6982/3383/files/31494577822.pdf
    • https://cdn.shopify.com/s/files/1/0437/7015/1061/files/97951752237.pdf
    • https://cdn.shopify.com/s/files/1/0439/9559/4910/files/actaris_electric_meter_ace9000_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/2287/5813/files/jafej.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003d8d.bin
0cdaaec7419c6df3cff40ecf5b0d3931edc7493f5edcb232cc94881bd3c87514		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3D8D 5368 bytes
font_01_sfnt_off00004fa6.bin
22b972ab6beb300ceb1f24590fea18ec945c090cc40adb84a330272af0d5b8d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4FA6 8924 bytes
font_02_sfnt_off00006e06.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E06 4324 bytes

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