Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6001114b37c4536…

MALICIOUS

PDF

42.8 KB Created: 2020-08-06 03:39:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9fd65f676625e34794e4375eea90c282 SHA-1: 56b78cc72c03e03061ba1814221e5b6449e1ca88 SHA-256: f6001114b37c45369d284b09f77020a15071024db62bab6ecceeead03c7e8438
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector at 'https://ttraff.com/pify?keyword=applications+of+python+programming+pdf'. Another critical heuristic identified a large number of external PDF links, suggesting a link farm for SEO manipulation or malware distribution. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the primary attack vector appears to be the malicious redirection links.

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=applications+of+python+programming+pdf
    • http://files.conceptarianworx.org/uploads/1/3/1/3/131384489/4247906.pdf
    • http://vajubar.the309s.com/uploads/1/3/2/7/132710712/83614c04fe16.pdf
    • http://jagosakol.drbrandongamble.com/uploads/1/3/1/4/131482975/2702694.pdf
    • http://files.joeldguy.com/uploads/1/3/0/9/130968943/kivemutadizuxupizoz.pdf
    • https://cdn.shopify.com/s/files/1/0435/3140/3413/files/home_movies_episodes.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xumilegimazuguvabunozanik.pdf
    • https://cdn.shopify.com/s/files/1/0434/5289/1297/files/2338714636.pdf
    • https://cdn.shopify.com/s/files/1/0429/5937/2439/files/30697155944.pdf
    • https://cdn.shopify.com/s/files/1/0430/6288/6549/files/zofran_davis.pdf
    • https://cdn.shopify.com/s/files/1/0433/0756/5209/files/tafoxorifixaji.pdf
    • https://cdn.shopify.com/s/files/1/0440/7987/4213/files/74280716886.pdf
    • https://cdn.shopify.com/s/files/1/0428/6545/9366/files/tutufidagemezamul.pdf
    • https://cdn.shopify.com/s/files/1/0428/3708/2271/files/fosasubokaf.pdf
    • https://cdn.shopify.com/s/files/1/0429/1916/6105/files/suwukupobaku.pdf
    • https://cdn.shopify.com/s/files/1/0430/8631/5671/files/tipaliwitelu.pdf
    • https://cdn.shopify.com/s/files/1/0434/3513/1046/files/palabebeli.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_off0000685c.bin
6a987d5db1fb7dd8a23d04814bde12a74f5b3675ebb6b283682634a9f8b27223
pdf-font-stream PDF embedded font (sfnt) at offset 0x685C 5660 bytes
font_01_sfnt_off00007b7a.bin
abd7f83bdadf7bc4cb04ce7b689d4648dd936289c276ac6973c17848a0549f83
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B7A 10144 bytes