Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2e7fe75474db0e7…

MALICIOUS

PDF

54.9 KB Created: 2020-08-17 00:16:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 847b83518e63aa78f07395fdef7275c9 SHA-1: 37f6d6f663875937a9c4f11243f46561afea7a99 SHA-256: b2e7fe75474db0e7d16bde968f0a7c592b9465b93da110188861fbcbed6b656c
120 Risk Score

Malware Insights

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

The PDF contains a heuristic match for PDF_MALICIOUS_REDIRECTOR_LINK, pointing to 'https://ttraff.cc/pify?keyword=bounty+hunter+dotabuff+guide'. Additionally, PDF_SEO_LINK_FARM indicates a large number of outbound links, with 'https://cdn.shopify.com/s/files/1/0431/4864/0418/files/sigazogomabafarato.pdf' being the first listed. The document body, though heavily obfuscated, contains the same redirector URL, reinforcing the lure. The overall pattern suggests a phishing attempt using a deceptive link.

Heuristics 3

  • 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.
  • 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.cc/pify?keyword=bounty+hunter+dotabuff+guide
    • http://files.davidwaltersministry.com/uploads/1/3/1/3/131380618/gavolovureket.pdf
    • http://doban.villagesatlynxcreek.com/uploads/1/3/0/9/130969191/1692302.pdf
    • http://donudefeb.dawnhoy.net/uploads/1/3/2/6/132681268/1363914.pdf
    • http://files.marinasole.com/uploads/1/3/1/4/131437474/269acfb.pdf
    • http://files.wongyuhao.com/uploads/1/3/0/8/130814101/vezupat.pdf
    • http://doban.villagesatlynxcreek.com/uploads/1/3/0
    • https://cdn.shopify.com/s/files/1/0431/4864/0418/files/sigazogomabafarato.pdf
    • https://cdn.shopify.com/s/files/1/0432/4560/0936/files/jexivimiw.pdf
    • https://cdn.shopify.com/s/files/1/0427/9782/6207/files/75449960936.pdf
    • https://cdn.shopify.com/s/files/1/0433/4492/0734/files/roxupasewegifimog.pdf
    • https://cdn.shopify.com/s/files/1/0447/4834/1399/files/adapting_to_obesity_with_adipose_tissue_inflammation.pdf
    • https://cdn.shopify.com/s/files/1/0430/0147/9321/files/pasexoravupewozuregapotuw.pdf
    • https://cdn.shopify.com/s/files/1/0451/5836/7386/files/vubopozi.pdf
    • https://cdn.shopify.com/s/files/1/0438/3935/7093/files/68401931790.pdf
    • https://cdn.shopify.com/s/files/1/0447/8566/4166/files/erasmus_programme_guide.pdf
    • https://cdn.shopify.com/s/files/1/0428/2961/1171/files/43349958039.pdf
    • https://cdn.shopify.com/s/files/1/0437/7070/8125/files/napebidorefamilozupar.pdf
    • https://cdn.shopify.com/s/files/1/0431/0623/8613/files/51662659517.pdf
    • https://cdn.shopify.com/s/files/1/0431/5227/7670/files/apics_cpim_books.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_off00007eab.bin
619bb6ef5e970a56ea617affab90b1a337bb195de8e6ae9a19da0d2a89543cde
pdf-font-stream PDF embedded font (sfnt) at offset 0x7EAB 3156 bytes
font_01_sfnt_off000089f8.bin
3412fe6ccc06165ca4b1f07447919402886b1f1e55b8f5e5b901045394ad48b4
pdf-font-stream PDF embedded font (sfnt) at offset 0x89F8 5252 bytes
font_02_sfnt_off00009bd8.bin
c080e3427ec035f3f68f627c0dbd7b125621406a9b016f25c48beb54212d8f71
pdf-font-stream PDF embedded font (sfnt) at offset 0x9BD8 15712 bytes