Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a833c6469d83f8d…

MALICIOUS

PDF

47.7 KB Created: 2020-08-09 21:16:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c3884e6faed27aa2a3226144d0339fc5 SHA-1: 8e337829b0294895ef1bffc7b0ff9be0349302c8 SHA-256: 9a833c6469d83f8d85463d69b844f9a07a8b40f89bac0ddb290d8c62a606c459
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple critical heuristics indicating malicious redirector links and a link farm. The ML classifier also assigned a high probability of maliciousness. The document body contains numerous URLs, with the primary suspicious URL being 'https://ttraff.com/pify?keyword=les+automate+programmable+industriel+pdf', which is likely part of a phishing or malware distribution scheme. The presence of a large number of embedded links suggests an attempt to overwhelm security measures or distribute malicious content through various channels.

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=les+automate+programmable+industriel+pdf
    • http://files.jitterbughire.com.au/uploads/1/3/1/4/131438190/42ebbc182df.pdf
    • http://disex.applied-magnetics-shop.com/uploads/1/3/0/8/130814328/3755351.pdf
    • http://files.stephengatt.com/uploads/1/3/1/8/131857115/2a0b6b46.pdf
    • https://cdn.shopify.com/s/files/1/0433/9892/2392/files/luwupisetegusipem.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15518423203.pdf
    • https://cdn.shopify.com/s/files/1/0435/4375/6954/files/kifederodunarasebot.pdf
    • https://cdn.shopify.com/s/files/1/0433/7690/2309/files/blink_malcolm_gladwell_book.pdf
    • https://cdn.shopify.com/s/files/1/0435/6918/4931/files/critical_applied_linguistics_a_critical_introduction.pdf
    • https://cdn.shopify.com/s/files/1/0432/5575/9011/files/d_d_5e_false_life.pdf
    • https://cdn.shopify.com/s/files/1/0434/7848/3096/files/dexikizujurufexirebugimuj.pdf
    • https://cdn.shopify.com/s/files/1/0432/9875/0629/files/24061194577.pdf
    • https://cdn.shopify.com/s/files/1/0431/5725/8401/files/59612051657.pdf
    • https://cdn.shopify.com/s/files/1/0432/4976/2459/files/autodesk_revit_2020_guide.pdf
    • https://cdn.shopify.com/s/files/1/0431/7567/4024/files/79282333342.pdf
    • https://cdn.shopify.com/s/files/1/0436/0355/8564/files/toyota_parts_catalog.pdf
    • https://cdn.shopify.com/s/files/1/0428/1945/3095/files/95103240597.pdf
    • https://cdn.shopify.com/s/files/1/0432/1574/9281/files/risk_evaluation_matrix.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_off00006dea.bin
5d3d0252b61641af80de246acfc571c2a82bb4f717e785e34e76117866d4b06a
pdf-font-stream PDF embedded font (sfnt) at offset 0x6DEA 5324 bytes
font_01_sfnt_off00007fe6.bin
257c902a5fa1aba435faec290c323386bf0c5bb29dc402ca5b11764b9d31e41e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7FE6 10440 bytes
font_02_sfnt_off0000a35b.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0xA35B 4324 bytes