Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fcd15fec61839ba…

MALICIOUS

PDF

38.7 KB Created: 2020-08-30 22:52:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a9080ee4fd0e66ea446bd8a0b2ebf251 SHA-1: e5f74b7479cef6d46e778fd2cc1b0e7b0e233ef1 SHA-256: 0fcd15fec61839bae4b4614889aa5c141a81fea93b76534f0ff7029f131852c5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links, with one identified as a malicious redirector. The heuristic 'SE_MFA_LURE' suggests the content is designed to trick users into providing sensitive information, such as one-time codes or MFA approvals. The presence of numerous external PDF links also indicates a link farm, likely for SEO manipulation or to obscure the malicious destination.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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
  • 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=borderlands+pre-sequel+lab+19
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/01e791_f846f0a5e7b54f3d84616640fa84242e.pdf
    • https://static.usrfiles.com/ugd/b8c837_a5e70e157be746149adf42f7af666429.pdf
    • https://static.usrfiles.com/ugd/963627_bfa4b9426db34e8299d2f2abeb3dde26.pdf
    • https://cdn.shopify.com/s/files/1/0431/4651/0504/files/90389393226.pdf
    • https://cdn.shopify.com/s/files/1/0431/0089/7440/files/los_tres_grandes_generos_literarios.pdf
    • https://cdn.shopify.com/s/files/1/0429/6874/4087/files/49843924598.pdf
    • https://cdn.shopify.com/s/files/1/0432/7371/5880/files/lamafokifemajemesezigegu.pdf
    • https://cdn.shopify.com/s/files/1/0434/0213/3660/files/betuxezunukipozimojix.pdf
    • https://cdn.shopify.com/s/files/1/0431/6869/4421/files/40500713930.pdf
    • https://cdn.shopify.com/s/files/1/0433/2892/9960/files/49037194282.pdf
    • https://static.usrfiles.com/ugd/b8c837_daf4ec05f5bf402faf6d38e30f2777ea.pdf
    • https://static.usrfiles.com/ugd/49be48_f2bf02163cb34705bebd189b1e38c0db.pdf
    • https://static.usrfiles.com/ugd/bd5c68_e870ed60dee644629d812893b306ea42.pdf
    • https://static.usrfiles.com/ugd/625844_62b0d4583a494a1ab563f16e133d4640.pdf
    • https://static.usrfiles.com/ugd/b8c837_cb47b5f1d4014dbdb96ac6e2fda0fb45.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005758.bin
9a575da8778b4f137925151aea942d584222f4581c0f7e912a1cc7643370a73e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5758 5508 bytes
font_01_sfnt_off00006a20.bin
a52c83ddb4b1da9d753c0858784d63d069634a797f70ac7939550245be918cd7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A20 10388 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.