Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ed1a0a6a625ef56…

MALICIOUS

PDF

42.3 KB Created: 2020-08-30 14:30:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 34251c981e9d4265a5347ab52643650b SHA-1: 44c4070b314d694e3bff415f7f7615495736f334 SHA-256: 1ed1a0a6a625ef56a903e262cd1b02fc01a9879fb149b12979dd32b3116ed9b9
152 Risk Score

Malware Insights

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

The PDF contains a prominent link that, when clicked, redirects to a malicious URL. The document body and embedded link text suggest a lure related to "Gta 5 generator no survey no download", indicating a phishing or scam attempt. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms the redirection to known malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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.ru/wix?keyword=gta+5+generator+no+survey+no+download
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/21659337375.pdf
    • https://cdn.shopify.com/s/files/1/0433/0323/9835/files/81660908039.pdf
    • https://cdn.shopify.com/s/files/1/0434/4122/5880/files/gezom.pdf
    • https://cdn.shopify.com/s/files/1/0428/1607/7991/files/bechem_avantin_361.pdf
    • https://cdn.shopify.com/s/files/1/0432/0067/6003/files/58188530352.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/13652925252.pdf
    • https://cdn.shopify.com/s/files/1/0436/8223/4521/files/convert_any_file_to_mp3.pdf
    • https://cdn.shopify.com/s/files/1/0448/0958/4802/files/tipivuxifilotubuxo.pdf
    • https://static.usrfiles.com/ugd/b8c837_cbe712cf79044c0db5f095efe17b8408.pdf
    • https://static.usrfiles.com/ugd/b8c837_05c51dcbf4d74074a459d27da6beca0b.pdf
    • https://static.usrfiles.com/ugd/0df15e_4b4b4e74259e433f98f5d42060816f36.pdf
    • https://static.usrfiles.com/ugd/b8c837_8ce7c767ba8d47229cadbf7426528cdc.pdf
    • https://cdn.shopify.com/s/files/1/0431/6354/9845/files/vidosigobenokenal.pdf
    • https://cdn.shopify.com/s/files/1/0430/5240/0793/files/zawazevapazugifet.pdf
    • https://cdn.shopify.com/s/files/1/0433/8178/4734/files/7926301718.pdf
    • https://cdn.shopify.com/s/files/1/0437/8886/1602/files/sua_loi_file_khong_in_duoc.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_off000065b7.bin
bfab4d82f62127dcb903212ca6c40c41aa70d9c014588865ef85ded9a65dfab2
pdf-font-stream PDF embedded font (sfnt) at offset 0x65B7 5404 bytes
font_01_sfnt_off0000784a.bin
82fdb2624d5e5a95e726f7e328fa282fe2134999726d9c54ea878019551827a3
pdf-font-stream PDF embedded font (sfnt) at offset 0x784A 10560 bytes