Malicious PDF — malware analysis report

Static analysis result for SHA-256 684df64ac9cf285d…

MALICIOUS

PDF

45.4 KB Created: 2020-08-29 08:48:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9281cbe5deefd10602dbfaa405195dab SHA-1: 696568d023ca54bb723e0ca4ae0c836e39c67273 SHA-256: 684df64ac9cf285d4707b13c4bccd3d80dafa9c45e1159e852985a9789152835
154 Risk Score

Malware Insights

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

The PDF contains embedded links, one of which, 'https://ttraff.com/wix?keyword=swgoh+mod+guide+deutsch', is flagged as a malicious redirector. The document body, though heavily obfuscated, appears to contain text related to a 'swgoh mod guide deutsch', suggesting a lure. The presence of numerous other PDF links further indicates a link farm or redirection attempt, likely to deliver a secondary payload or phish for credentials.

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.com/wix?keyword=swgoh+mod+guide+deutsch
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/b8c837_f9cebd65e9344e0396a1a7d47873b8b1.pdf
    • https://static.usrfiles.com/ugd/b8c837_69260b6ea10e4c69897655aa39b009b2.pdf
    • https://static.usrfiles.com/ugd/b8c837_d8cc72e9102f4551aa5bf8b1f0753a2a.pdf
    • https://static.usrfiles.com/ugd/b8c837_e6b032325d904897bf9cf1e87d7ac8a1.pdf
    • https://static.usrfiles.com/ugd/b8c837_7a38c410f2a1421f89fc2e4e7703d5b9.pdf
    • https://cdn.shopify.com/s/files/1/0430/7006/2753/files/15959324564.pdf
    • https://cdn.shopify.com/s/files/1/0433/7503/4520/files/gojij.pdf
    • https://cdn.shopify.com/s/files/1/0433/5733/9800/files/rutuwa.pdf
    • https://cdn.shopify.com/s/files/1/0431/8042/5370/files/79659462494.pdf
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/bearing_number_code.pdf
    • https://cdn.shopify.com/s/files/1/0429/3269/9302/files/18259538317.pdf
    • https://cdn.shopify.com/s/files/1/0431/7921/2959/files/fe_reference_handbook_9._4_edition.pdf
    • https://cdn.shopify.com/s/files/1/0430/3349/3658/files/defidagisuxovajatesan.pdf
    • https://cdn.shopify.com/s/files/1/0429/1756/0473/files/83716303569.pdf
    • https://cdn.shopify.com/s/files/1/0434/5410/3713/files/xekajusidudefonetotiduj.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_off00007241.bin
7ab9a1f408db4e0667e08096fe39c2b0ace4d217185bcf4cb435a8d82ef64c24
pdf-font-stream PDF embedded font (sfnt) at offset 0x7241 5208 bytes
font_01_sfnt_off000083e8.bin
b4b6df72277edd7080dc378981c3dab9649c6ddc4c17485bf28d775ca42c3b0a
pdf-font-stream PDF embedded font (sfnt) at offset 0x83E8 10916 bytes