Malicious PDF — malware analysis report

Static analysis result for SHA-256 f29c1f76c4321534…

MALICIOUS

PDF

38.7 KB Created: 2020-08-17 09:56:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a199fb12dec575cf0de04ef762601110 SHA-1: f68c70660aaefca8847b5fe8825fd296f1d8e9f0 SHA-256: f29c1f76c4321534093dc624b3c414d9113a67abb92a2f8cadf69112b4e8216e
150 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector (ttraff.com). The document body, though heavily obfuscated, contains the URL and suggests a lure related to a 'creative brief template'. The presence of many external PDF links, some hosted on Shopify, indicates a link farm strategy. No scripts were extracted, but the primary malicious activity appears to be redirecting users to a potentially harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.com/pify?keyword=creative+brief+template+word
    • http://files.laserquestbournemouth.co.uk/uploads/1/3/1/4/131437005/dazetanotolole.pdf
    • https://cdn.shopify.com/s/files/1/0433/5170/3706/files/pokemivib.pdf
    • https://cdn.shopify.com/s/files/1/0430/4814/0949/files/high_altitude_cerebral_edema.pdf
    • https://cdn.shopify.com/s/files/1/0433/7968/7587/files/nisatuxoxige.pdf
    • https://cdn.shopify.com/s/files/1/0437/9030/3381/files/fireraliwubinusoxizun.pdf
    • https://cdn.shopify.com/s/files/1/0429/7113/6154/files/black_panther_marvel_comic.pdf
    • https://cdn.shopify.com/s/files/1/0432/1440/5793/files/pavibojopaxagesap.pdf
    • https://cdn.shopify.com/s/files/1/0430/8592/2466/files/bitax.pdf
    • https://cdn.shopify.com/s/files/1/0455/4260/4965/files/bsnl_prepaid_plans_tamilnadu.pdf
    • https://cdn.shopify.com/s/files/1/0432/3170/7294/files/what_is_a_good_ping_for_discord.pdf
    • https://cdn.shopify.com/s/files/1/0433/4842/6920/files/dekaguferuxe.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005d15.bin
f64cc841414f4c6cf689958e79d54eabd61476e4c9fa2d6e417a002e1e0240bd
pdf-font-stream PDF embedded font (sfnt) at offset 0x5D15 5204 bytes
font_01_sfnt_off00006ec4.bin
3757ef3c65367cbe38c6fd9d07379d3456d2e6336b7c8dae097ee585ee073d7e
pdf-font-stream PDF embedded font (sfnt) at offset 0x6EC4 9168 bytes