Malicious PDF — malware analysis report

Static analysis result for SHA-256 e29312da603a1208…

MALICIOUS

PDF

56.0 KB Created: 2020-08-20 21:57:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9e9335543a8cb68156f5160e37787111 SHA-1: 8f8d5c795926c63fd4e06fcdac936a88c628f132 SHA-256: e29312da603a1208f823b0e55d82345ab66b275e7669f99482c7f6ddeaf3d3c0
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a malicious redirector link disguised as a cheat sheet, which is a common social engineering tactic to lure users into clicking malicious URLs. The PDF also contains a mass external link farm, indicating a potential SEO poisoning or link farm strategy. The primary malicious URL identified is https://ttraff.cc/pify?keyword=asymptotic+notation+cheat+sheet, which is flagged as a known malicious redirector.

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.cc/pify?keyword=asymptotic+notation+cheat+sheet
    • http://sawudag.literarypubcrawl.com/uploads/1/3/1/8/131856743/babupexiter-vudizamuwezamax-xogoxokaj-lefezotigijo.pdf
    • https://cdn.shopify.com/s/files/1/0430/4257/0401/files/bernard_marr_books.pdf
    • https://cdn.shopify.com/s/files/1/0437/3676/0485/files/genomikawevadifulelefizo.pdf
    • https://cdn.shopify.com/s/files/1/0438/6367/0939/files/workforce_planning_strategy.pdf
    • https://cdn.shopify.com/s/files/1/0428/2908/6887/files/87586009520.pdf
    • https://cdn.shopify.com/s/files/1/0433/3391/0681/files/64415159945.pdf
    • https://cdn.shopify.com/s/files/1/0435/2599/6698/files/juzinu.pdf
    • https://cdn.shopify.com/s/files/1/0450/8083/8309/files/aircraft_maintenance_manual_a330.pdf
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/nuzavewotebolelezerom.pdf
    • https://cdn.shopify.com/s/files/1/0435/3441/8072/files/68265736536.pdf
    • https://cdn.shopify.com/s/files/1/0438/9814/2875/files/modele_attestation_de_fin_de_stage.pdf
    • https://cdn.shopify.com/s/files/1/0434/8516/7766/files/86617631376.pdf
    • https://cdn.shopify.com/s/files/1/0431/9461/3924/files/mekijobenokekede.pdf
    • https://cdn.shopify.com/s/files/1/0431/7147/9713/files/66523192462.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006bb7.bin
e7c06a0dc481494621a4847731f779ae7df0c404639b109f48eaaf73bcaa6cee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BB7 3036 bytes
font_01_sfnt_off00007681.bin
464337cf38e3cfbc5413c1070ac0ad0e3dfc198e5e98810b3aabf2fbc2effa0d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7681 5136 bytes
font_02_sfnt_off000087d3.bin
74c339e64f10e3b109e5fd74b96a543033990379162dee22950783f4312bcb2f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87D3 17052 bytes
font_03_sfnt_off0000bc0f.bin
8aad148e045df3cb832ef8336bffe49c527cc6d00086f93a1b7b2c8e5c37648e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBC0F 16500 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.