Malicious PDF — malware analysis report

Static analysis result for SHA-256 aadc7198323ad028…

MALICIOUS

PDF

37.8 KB Created: 2020-08-05 14:28:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 80eab867119e7d3cc91bd833f41041da SHA-1: d244cb22ca57a4df77887cd976fbbece804b3d04 SHA-256: aadc7198323ad028df1cce039fe6efd35cf741ef94609b701fbf35ed5874d8e5
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a common tactic for SEO poisoning and redirecting users to malicious sites. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is used to obscure the final destination. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing the intent to lure users into clicking it. The presence of multiple shopify.com links suggests an attempt to blend in with legitimate content.

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=atheist+books+pdf+download
    • http://files.nwgachampionship.com/uploads/1/3/0/7/130738739/lomiziwovoro.pdf
    • http://files.deepspaceobjects.com/uploads/1/3/1/6/131606179/8240783.pdf
    • http://files.paynefieldfarm.com/uploads/1/3/1/6/131607522/jidapi.pdf
    • https://cdn.shopify.com/s/files/1/0430/1094/9273/files/jemeleladusaxuvutu.pdf
    • https://cdn.shopify.com/s/files/1/0431/2439/2087/files/82225693551.pdf
    • https://cdn.shopify.com/s/files/1/0430/8271/1201/files/69653124461.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mefopevepal.pdf
    • https://cdn.shopify.com/s/files/1/0437/7526/2869/files/xadafavarigiviwadosadav.pdf
    • https://cdn.shopify.com/s/files/1/0432/8813/3787/files/sigefu.pdf
    • https://cdn.shopify.com/s/files/1/0430/6383/6834/files/convert_pptx_to_ppt.pdf
    • https://cdn.shopify.com/s/files/1/0429/2250/8454/files/89876438460.pdf
    • https://cdn.shopify.com/s/files/1/0428/9147/7159/files/nefevoxibuzudebeditituxiz.pdf
    • https://cdn.shopify.com/s/files/1/0435/3431/9776/files/8688445673.pdf
    • https://cdn.shopify.com/s/files/1/0433/9322/0775/files/91251949920.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_off00005588.bin
f38959eb90a02e32af25149173467ebdb2497c653b34079f9eb50beb5b241fe6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5588 5320 bytes
font_01_sfnt_off000067af.bin
8815ebe5b4491e4cfbef0d258d3a6acd7d062d1f8e91529a83cef446592e683a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67AF 10268 bytes

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