Malicious PDF — malware analysis report

Static analysis result for SHA-256 d09c631d4e741612…

MALICIOUS

PDF

43.0 KB Created: 2020-08-16 15:15:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fb8eb8ede041c2ef8740bf5f20db4fdc SHA-1: 531a464c6f1365f061336ebe203098ea477ff05c SHA-256: d09c631d4e74161227bff72ee97cb23aedccf7bcba150602b00c274fe977e41f
160 Risk Score

Malware Insights

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

The PDF file contains a link farm and a direct link to a redirector, masquerading as a software download. The heuristic firings indicate that the PDF is designed to redirect users to malicious sites, and it also contains instructions for password-protected archives, suggesting a multi-stage attack. The primary malicious URL identified is https://ttraff.com/pify?keyword=glary+utilities+pro+with+crack+free, which is part of a link farm pointing to various PDF files, some hosted on Shopify. The document body, though heavily obfuscated, contains references to these URLs and the lure of 'glary utilities pro with crack free'.

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=glary+utilities+pro+with+crack+free
    • http://zevazoxis.alekthepoet.com/uploads/1/3/1/6/131606069/2e71ce36f.pdf
    • https://cdn.shopify.com/s/files/1/0430/6200/1821/files/99563811573.pdf
    • https://cdn.shopify.com/s/files/1/0431/8153/9489/files/wulomebimefixifutamuxu.pdf
    • https://cdn.shopify.com/s/files/1/0434/7002/8966/files/39876349308.pdf
    • https://cdn.shopify.com/s/files/1/0431/9114/0510/files/44803697527.pdf
    • https://cdn.shopify.com/s/files/1/0433/2768/4760/files/1752451269.pdf
    • https://cdn.shopify.com/s/files/1/0434/1818/9980/files/98815605480.pdf
    • https://cdn.shopify.com/s/files/1/0431/4352/8609/files/46520598113.pdf
    • https://cdn.shopify.com/s/files/1/0428/4140/7644/files/97944916521.pdf
    • https://cdn.shopify.com/s/files/1/0434/3080/5671/files/37883615106.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sobobubujuwin.pdf
    • https://cdn.shopify.com/s/files/1/0440/0611/3430/files/sesozunolis.pdf
    • https://cdn.shopify.com/s/files/1/0431/0371/5489/files/52245378714.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_off00005ceb.bin
4d99ea1c0a40a3af8d8fb7fd212a1912372d4993bcabe0bb96e55a68c3d7f0c4
pdf-font-stream PDF embedded font (sfnt) at offset 0x5CEB 5168 bytes
font_01_sfnt_off00006eba.bin
fc5331157238818e2b262a8beb7df2096de3e59d8a19b15762e2b1a9fcaea19b
pdf-font-stream PDF embedded font (sfnt) at offset 0x6EBA 10128 bytes
font_02_sfnt_off00009166.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x9166 4324 bytes