Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e221c06ef9effa4…

MALICIOUS

PDF

44.4 KB Created: 2020-08-03 09:43:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 575c7b4fbf34a9a282f662db87349b39 SHA-1: 4aa473dc130402771ea1f37caf7bc2aafdf4d222 SHA-256: 2e221c06ef9effa4e61501b4430c49f5cab28fc2ab5e33c10655855765cf3235
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1200 Hardware Add-Or-Replace T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates a malicious redirector link, specifically `https://ttraff.cc/pify?keyword=cracked+fl+studio`, which is designed to redirect users to potentially harmful content. Another critical heuristic identifies a PDF link farm, suggesting an attempt to artificially inflate search engine rankings or distribute malicious links. The document body, though heavily obfuscated, contains references to these URLs and the application used to generate the PDF, wkhtmltopdf.

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.cc/pify?keyword=cracked+fl+studio
    • http://fofapagof.danieleantoniella.com/uploads/1/3/1/4/131438641/javixufoselonuw-virafewo.pdf
    • http://files.johnguillory.net/uploads/1/3/0/9/130969633/loguxomiwamadumo.pdf
    • http://vejumit.gastrocycling.com/uploads/1/3/1/0/131071252/milipovi-vuviguwapo-gaverurel.pdf
    • https://cdn.shopify.com/s/files/1/0431/1239/9009/files/.pdf
    • https://cdn.shopify.com/s/files/1/0432/9753/8203/files/guwamesafaxiwaze.pdf
    • https://cdn.shopify.com/s/files/1/0440/8272/5029/files/96954796459.pdf
    • https://cdn.shopify.com/s/files/1/0431/6993/9612/files/wixelugefubado.pdf
    • https://cdn.shopify.com/s/files/1/0428/4085/0598/files/kibilino.pdf
    • https://cdn.shopify.com/s/files/1/0428/3187/2166/files/84724966349.pdf
    • https://cdn.shopify.com/s/files/1/0439/4126/5566/files/xemogipe.pdf
    • https://cdn.shopify.com/s/files/1/0431/1446/3394/files/82829391416.pdf
    • https://cdn.shopify.com/s/files/1/0440/6634/1029/files/gowenovuv.pdf
    • https://cdn.shopify.com/s/files/1/0428/4219/4083/files/zumipozitile.pdf
    • https://cdn.shopify.com/s/files/1/0434/2946/2165/files/python_min_max.pdf
    • https://cdn.shopify.com/s/files/1/0438/1255/2864/files/bruice_organic_chemistry_7th_edition_solutions_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/6908/6623/files/wokovejipujosivapen.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_off00007172.bin
d4d92a15f81d48f18ebc25ac1367edeb72eaa84ee0c4f6293eefb6345e4301a4
pdf-font-stream PDF embedded font (sfnt) at offset 0x7172 4984 bytes
font_01_sfnt_off00008272.bin
9abcbe371c38f3b4eaffca767a460489f799ed934ada11072b8b089c6d609a67
pdf-font-stream PDF embedded font (sfnt) at offset 0x8272 10192 bytes