Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e6c0a9048752a34…

MALICIOUS

PDF

41.4 KB Created: 2020-09-02 15:26:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2a2353b360560cc041b1621d524015dc SHA-1: c705563528bbb987e386d091ed89d867baec58e5 SHA-256: 1e6c0a9048752a344cc81e5b55595207a68f1995e033eebd13ec65804ef928a9
154 Risk Score

Malware Insights

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

The PDF contains a link farm designed to appear as legitimate documents, but one of the primary links redirects to a malicious domain. The embedded URL `https://ttraff.club/wix?keyword=non+aggression+pact+template` is identified as a malicious redirector. The document body, though heavily obfuscated, contains this malicious URL, suggesting the intent is to lure the user to a malicious site under the guise of providing a document template. No scripts were extracted, limiting the analysis of further payload delivery.

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.club/wix?keyword=non+aggression+pact+template
    • https://cdn.shopify.com/s/files/1/0462/6766/2490/files/juvumuluxifenefigotiw.pdf
    • https://cdn.shopify.com/s/files/1/0438/1789/4050/files/anesthesia_medicine.pdf
    • https://cdn.shopify.com/s/files/1/0431/4434/7802/files/fofixanipovepilozabita.pdf
    • https://cdn.shopify.com/s/files/1/0429/9702/2879/files/zoxodekarodulefol.pdf
    • https://cdn.shopify.com/s/files/1/0440/5772/3030/files/8239655489.pdf
    • https://static.usrfiles.com/ugd/a107db_fbdd1f417b104c06957bb74002a05ac2.pdf
    • https://static.usrfiles.com/ugd/a2d007_6d808d64c12e40cb87ffe85dff170b4a.pdf
    • https://static.usrfiles.com/ugd/b8c837_1dccb9b98fc04a7bb503fab77e2589b6.pdf
    • https://static.usrfiles.com/ugd/3794ad_4199caf5dd734ed2a6b7aa78556f8822.pdf
    • https://static.usrfiles.com/ugd/b8c837_3b07c0ad5932484788e556414f4ebab2.pdf
    • https://static.usrfiles.com/ugd/b3bc21_5673da6873b14dbf8a12672b038e0c28.pdf
    • https://static.usrfiles.com/ugd/e42c35_7c4297922bdd4dc59782a37be30fca1d.pdf
    • https://static.usrfiles.com/ugd/d31907_72720b65ef02405e9c3cd9e479222abe.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_off0000584b.bin
10f2e3cc4eefb19c227c4465a1bce0637bf9a00904725785199f89b7130a63be
pdf-font-stream PDF embedded font (sfnt) at offset 0x584B 5012 bytes
font_01_sfnt_off00006939.bin
82012dfdb8cc792e548f875226a5ae362078a38580f948424441b12cf0616662
pdf-font-stream PDF embedded font (sfnt) at offset 0x6939 9908 bytes
font_02_sfnt_off00008b1b.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0x8B1B 4324 bytes