Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d5e0e9e2e760c53…

MALICIOUS

PDF

43.2 KB Created: 2020-08-14 15:18:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 75b33ac636cffd00934661e803f9233c SHA-1: bcae21434aa4ff68912e7570f37ca5eec0caa097 SHA-256: 7d5e0e9e2e760c538b0f4db71ac10e455ab3418ee6793156f4353de0895e5f24
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic identifying a malicious redirector. The primary malicious URL is https://ttraff.com/pify?keyword=alcatel+pixi+4+user+manual+uk, which likely leads to further malicious content. The document body, though heavily obfuscated, also contains this URL, reinforcing the malicious intent. The presence of numerous links, many pointing to Shopify domains, suggests a link farm or SEO poisoning tactic to disguise the malicious redirector.

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=alcatel+pixi+4+user+manual+uk
    • http://files.verateschow.ca/uploads/1/3/0/8/130814644/37db46cc6832.pdf
    • http://files.spo-celje.si/uploads/1/3/1/3/131398461/1029748.pdf
    • http://files.lynncociani.com/uploads/1/3/1/0/131069781/6987b401f89f22f.pdf
    • http://files.middletontheatre.org/uploads/1/3/2/8/132814272/9980048.pdf
    • http://vusol.caricaturesbysimon.com/uploads/1/3/1/4/131453284/eaae9.pdf
    • https://cdn.shopify.com/s/files/1/0431/6263/2346/files/69448489405.pdf
    • https://cdn.shopify.com/s/files/1/0437/1084/0981/files/80898735213.pdf
    • https://cdn.shopify.com/s/files/1/0431/8108/0738/files/89428963330.pdf
    • https://cdn.shopify.com/s/files/1/0431/6446/7357/files/binenuwi.pdf
    • https://cdn.shopify.com/s/files/1/0454/3338/9214/files/13635890188.pdf
    • https://cdn.shopify.com/s/files/1/0437/3551/5290/files/99714155133.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/puneson.pdf
    • https://cdn.shopify.com/s/files/1/0438/6842/2309/files/android_9_pie_update_pixel_2.pdf
    • https://cdn.shopify.com/s/files/1/0434/0816/2974/files/33178277088.pdf
    • https://cdn.shopify.com/s/files/1/0435/1184/0927/files/goweseterudupivu.pdf
    • https://cdn.shopify.com/s/files/1/0434/0069/1866/files/simple_electronic_projects_with_circuit_diagram.pdf
    • https://cdn.shopify.com/s/files/1/0432/9390/0958/files/bachianas_brasileiras_5.pdf
    • https://cdn.shopify.com/s/files/1/0432/2299/1007/files/zobigojuwojepefit.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_off00005602.bin
ce22c8eaa1f53a77d563481fc3f0abc202627ce0e69ac912df19b60822d178aa
pdf-font-stream PDF embedded font (sfnt) at offset 0x5602 3724 bytes
font_01_sfnt_off0000633f.bin
ba1314034c3dd887defc27da52a05dfb3c8755b2fa88a5bb9807bff85e7b638e
pdf-font-stream PDF embedded font (sfnt) at offset 0x633F 5288 bytes
font_02_sfnt_off00007527.bin
3fc3ca50a7c1f56d5c77d5ee70c4d38dea9eb4f65bfda7aa9323805c92cb334e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7527 13332 bytes