Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ec47da11fb91221…

MALICIOUS

PDF

45.7 KB Created: 2020-09-07 23:53:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 65b844c76c98b15defaecf0e229431f1 SHA-1: 1eca3fc160fa85f046b23dd7133e728ffc07baf9 SHA-256: 5ec47da11fb91221d3ca96aff032ac503b2fc159617578912c1209e808fa3f96
154 Risk Score

Malware Insights

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

This PDF document contains numerous links, including one to a known malicious redirector, suggesting a phishing or scam attempt. The document body, though obfuscated, contains text related to 'swing trading' and a URL that mirrors the malicious redirector's target. The presence of multiple external links, many pointing to benign-looking PDFs, indicates a link farm designed to obscure the malicious destination.

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=introduction+to+swing+trading+for+beginners+pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://static.usrfiles.com/ugd/c1c462_d05b4a4182c944d39bc18e1c8ca44394.pdf
    • https://static.usrfiles.com/ugd/c1de29_c2bf9ad5d921441c99709c5a14d57719.pdf
    • https://static.usrfiles.com/ugd/90661f_4e9e7b3a4f6c4733a38f4851fd7b216c.pdf
    • https://static.usrfiles.com/ugd/5c139a_64bdb6a5973840259d81ce4f7f15b313.pdf
    • https://cdn.shopify.com/s/files/1/0457/5510/5436/files/bollywood_music_list.pdf
    • https://cdn.shopify.com/s/files/1/0434/9103/3250/files/81303215466.pdf
    • https://cdn.shopify.com/s/files/1/0435/0682/7428/files/mmpi_test_online.pdf
    • https://cdn.shopify.com/s/files/1/0440/4976/0421/files/subway_map_dc.pdf
    • https://cdn.shopify.com/s/files/1/0432/7312/6052/files/sawemejiliposatagafegat.pdf
    • https://cdn.shopify.com/s/files/1/0432/3049/4878/files/19430212862.pdf
    • https://static.usrfiles.com/ugd/ae15ca_96407658494d44bfab48450d46c134fd.pdf
    • https://static.usrfiles.com/ugd/c3f59f_a7225de871e947e2a1767f466df851f9.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000663a.bin
5c6d7f63940ff14bb60a26ebf748803706d9a6a32a08e6cffdc0a7d8fd76c667
pdf-font-stream PDF embedded font (sfnt) at offset 0x663A 5340 bytes
font_01_sfnt_off0000787c.bin
20bbb044afdeb0e5f081cd3f184f03d1cb704f924d96eba64f44f3559b62f8da
pdf-font-stream PDF embedded font (sfnt) at offset 0x787C 10324 bytes
font_02_sfnt_off00009bc1.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f
pdf-font-stream PDF embedded font (sfnt) at offset 0x9BC1 4324 bytes