Malicious PDF — malware analysis report

Static analysis result for SHA-256 5591e4b4a49d9dc6…

MALICIOUS

PDF

42.6 KB Created: 2020-07-24 11:24:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e3800650be51420f956b7ce9f703041 SHA-1: 82f2a5b0ea07b896ff0a7d996108a34a44365a0c SHA-256: 5591e4b4a49d9dc6739d74dae514da186e3ec88cbcdcec67bff07ab34ae727d5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains multiple embedded links, with one critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, suggests a lure related to 'Soda PDF Pro crack'. Another heuristic indicates a link farm, with many links pointing to Shopify domains, likely to obscure the malicious redirector. The presence of MFA/one-time-code lure heuristics further supports a credential phishing or session hijacking attempt.

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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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=soda+pdf+pro+crack
    • http://files.mooipermanentemakeup.com/uploads/1/3/1/4/131453713/winalepedosajup.pdf
    • http://files.dbtdelaware.com/uploads/1/3/0/7/130775163/tepotegojomewit-lezuful.pdf
    • http://files.brewerparkcommunitygarden.com/uploads/1/3/2/6/132681992/bixovizuw.pdf
    • https://cdn.shopify.com/s/files/1/0432/1368/4891/files/dobuzezarekofanudonokebo.pdf
    • https://cdn.shopify.com/s/files/1/0431/7403/5607/files/72027086409.pdf
    • https://cdn.shopify.com/s/files/1/0430/7730/4484/files/83998344177.pdf
    • https://cdn.shopify.com/s/files/1/0433/7287/1832/files/42439365546.pdf
    • https://cdn.shopify.com/s/files/1/0431/7193/8461/files/96664887401.pdf
    • https://cdn.shopify.com/s/files/1/0428/7001/4111/files/54988305023.pdf
    • https://cdn.shopify.com/s/files/1/0433/1018/6654/files/ganib.pdf
    • https://cdn.shopify.com/s/files/1/0430/7235/6509/files/15590269843.pdf
    • https://cdn.shopify.com/s/files/1/0431/1459/4464/files/1635101288.pdf
    • https://cdn.shopify.com/s/files/1/0428/8030/3267/files/pogan.pdf
    • https://cdn.shopify.com/s/files/1/0435/0859/6900/files/xoribibatul.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/velokiw.pdf
    • https://cdn.shopify.com/s/files/1/0428/3082/3583/files/wepeturositikivixolu.pdf
    • https://cdn.shopify.com/s/files/1/0430/7012/8277/files/xosofolebexo.pdf
    • https://cdn.shopify.com/s/files/1/0431/3396/0341/files/zenasorepapiva.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_off00006bd1.bin
3cfac607b594f4da26d0d2a6fc9cffd1990c13c1d705c6f57b6d985d9fda1cac
pdf-font-stream PDF embedded font (sfnt) at offset 0x6BD1 4540 bytes
font_01_sfnt_off00007b49.bin
c94bf1b04d65a1c810cdda9c42968c398d3e262038533bed3773e2ae079e1bb3
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B49 9940 bytes