Malicious PDF — malware analysis report

Static analysis result for SHA-256 092d925b04b976fb…

MALICIOUS

PDF

53.0 KB Created: 2020-09-05 13:00:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f6f2993eaed352d948734c68258ed598 SHA-1: d3c65c514267381f0a4ef0b66767702605424253 SHA-256: 092d925b04b976fb57f4626b227806d30825db0807c3efa2c26e12bb5485bfda
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a redirector link to 'ttraff.me'. This suggests the document is designed to lead users to malicious infrastructure. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were explicitly extracted, the presence of embedded URLs and the redirector heuristic strongly indicate a phishing or redirection attempt.

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.me/wix?keyword=marketing+information+system+pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/6a7407_65c2f9f0daf54408aaf4bf2dddc21677.pdf
    • https://static.usrfiles.com/ugd/aef5b7_7077b27ac0dd4dc3950cddd762bcc5dc.pdf
    • https://static.usrfiles.com/ugd/05e3ad_de255b582ca74973806802629c480e6a.pdf
    • https://static.usrfiles.com/ugd/bb13a2_a690b4dea55542bd899b8acc24733841.pdf
    • https://static.usrfiles.com/ugd/405339_86268e34eb69451f84bf90beb4264bcc.pdf
    • https://static.usrfiles.com/ugd/4c3ae3_82b01697321242b4bae70fe023fc4c11.pdf
    • https://static.usrfiles.com/ugd/b85eb0_c703e571a0eb4760bb24a8b02621b5ba.pdf
    • https://static.usrfiles.com/ugd/9c43ec_5b54616106024204bb8a391a213de5ab.pdf
    • https://static.usrfiles.com/ugd/71fd01_3ff43da5923443c2a664b26fee6b2ac0.pdf
    • https://static.usrfiles.com/ugd/a107db_5cbc4e702bac4cbb967515d54e87dae1.pdf
    • https://cdn.shopify.com/s/files/1/0430/4257/0401/files/pozubadodoxotededinexofek.pdf
    • https://cdn.shopify.com/s/files/1/0437/2591/4277/files/8145773990.pdf
    • https://cdn.shopify.com/s/files/1/0440/7725/2760/files/41851592615.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_off00009258.bin
90639995859e5f74e89b5151b2176e730f24c7e689856196aae98de9234c74b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x9258 5500 bytes
font_01_sfnt_off0000a516.bin
fcd3e40ee768198116a55a1e79760053d200708700e1b2a15e651a87155255c1
pdf-font-stream PDF embedded font (sfnt) at offset 0xA516 10028 bytes