Malicious PDF — malware analysis report

Static analysis result for SHA-256 1baa61e7f591ecca…

MALICIOUS

PDF

51.2 KB Created: 2020-08-05 00:17:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 00c48070486d0985b66508a706a1f64e SHA-1: 326c6c929b64b91191755521c0260f2cbc05e709 SHA-256: 1baa61e7f591eccae68f94dc9736c27f819513b7c71a062e811ab1a2d877b54a
150 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a government scheme list, aiming to lure users to a malicious website. The document body and embedded URLs confirm the presence of multiple links, with one specifically identified as a malicious redirector. The ML classifier also strongly indicated maliciousness.

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.ru/pify?keyword=cg+pradhan+mantri+awas+yojana+list+2020+pdf
    • http://files.thaihoneymoons.com/uploads/1/3/0/8/130814353/renumurub-janarekog-lafobodobe-lixeru.pdf
    • http://files.larrysbuffet.com/uploads/1/3/0/8/130874567/9943173.pdf
    • http://files.luciecerna.com/uploads/1/3/2/6/132695416/romel.pdf
    • http://tajikoxe.spcottermusic.com/uploads/1/3/0/8/130813834/5540684.pdf
    • https://cdn.shopify.com/s/files/1/0431/4667/4336/files/wadadaxupeb.pdf
    • https://cdn.shopify.com/s/files/1/0432/0965/4434/files/87713578708.pdf
    • https://cdn.shopify.com/s/files/1/0433/8486/4917/files/86277287599.pdf
    • https://cdn.shopify.com/s/files/1/0433/7437/9158/files/ftb_infinity_lite_mod_list.pdf
    • https://cdn.shopify.com/s/files/1/0431/4424/9499/files/92302979367.pdf
    • https://cdn.shopify.com/s/files/1/0431/5506/2948/files/69387039876.pdf
    • https://cdn.shopify.com/s/files/1/0431/2399/8874/files/belojeruvikodiv.pdf
    • https://cdn.shopify.com/s/files/1/0433/7257/6922/files/pezolaxafun.pdf
    • https://cdn.shopify.com/s/files/1/0432/2043/5112/files/62533249310.pdf
    • https://cdn.shopify.com/s/files/1/0432/0677/0849/files/fibowerefi.pdf
    • https://cdn.shopify.com/s/files/1/0431/0892/5600/files/ruxov.pdf
    • https://cdn.shopify.com/s/files/1/0434/2670/9665/files/gikekofumade.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_off00006467.bin
40f0f2127bc6e43b8db98977c8e4bab756d1bdabcf485a828914e5cad30dbb55		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6467 5692 bytes
font_01_sfnt_off000077b9.bin
7ea840454f60dd3b5b769709a86533edcee11c603c3216bbd40b4f343743e33b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77B9 10340 bytes
font_02_sfnt_off00009b14.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9B14 4324 bytes
font_03_sfnt_off0000a914.bin
7ac88e8179e2a9d9cdfb0a7a7b79c6211b185f4a6505cc6c74625fb097d4b370		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA914 5604 bytes

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