Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc62283531009aeb…

MALICIOUS

PDF

43.2 KB Created: 2020-08-17 18:02:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4e0fa39659de6d7e6ed62f4692fcf14f SHA-1: 61080a3fef0f571ff544ac479343e28437b79688 SHA-256: fc62283531009aeb3999dffa8ea3503442d97a621baa656b95f72a7c5e3edbf9
128 Risk Score

Malware Insights

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

The PDF file contains a heuristic indicating it's a malicious redirector link, pointing to a URL that appears to be part of a link farm. The document body, though heavily obfuscated, contains text related to 'acr format for central govt employees gazetted' and includes the malicious URL. This suggests a lure to trick users into visiting a potentially harmful site, possibly for phishing or malware distribution.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=acr+format+for+central+govt+employees+gazetted
    • http://files.osteopathyrmtrelief.com/uploads/1/3/1/6/131606330/buvedavox_jikaf.pdf
    • http://files.historicwashingtonheightscharlotte.org/uploads/1/3/0/7/130739616/909dd4f2d0ac0.pdf
    • http://files.trailsandtrilliums.org/uploads/1/3/1/4/131407357/gufufikavireze.pdf
    • https://cdn.shopify.com/s/files/1/0431/3304/2839/files/woruvazazagax.pdf
    • https://cdn.shopify.com/s/files/1/0429/2050/9596/files/steam_blancher.pdf
    • https://cdn.shopify.com/s/files/1/0434/5593/8725/files/piano_man_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0434/6285/2773/files/zafixopusuned.pdf
    • https://cdn.shopify.com/s/files/1/0437/0622/0697/files/bojedibegofegexevinifefe.pdf
    • https://cdn.shopify.com/s/files/1/0433/6910/3528/files/kaxifapizubilegupeguw.pdf
    • https://cdn.shopify.com/s/files/1/0433/7762/3194/files/mugejerajabuworizixigi.pdf
    • https://cdn.shopify.com/s/files/1/0434/1124/3162/files/japakubige.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_off00006115.bin
587d8fd401ae2802b7d8d27c31ea6d65502ac9716ba136fa879e09d6d108d540		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6115 5676 bytes
font_01_sfnt_off00007456.bin
bc653c36abe74dde21239ef3c3abcfdd6d2d2560fab357a9fc33540a22e2ae1a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7456 13924 bytes

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