Malicious PDF — malware analysis report

Static analysis result for SHA-256 32c0066466d4b0a7…

MALICIOUS

PDF

60.9 KB Created: 2020-09-13 05:17:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 038d0f08b7701f37836f3f10b9d38713 SHA-1: 9b46781a8753757e73bb648b3187abf0cf6fd760 SHA-256: 32c0066466d4b0a772a104b6b3535da9199fc3b3b1263abc6691bffa0fd4b586
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to domains associated with link farms and redirectors. One such link, 'https://ttraff.cc/wix?keyword=dua+for+protection+from+harm', is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to these URLs, suggesting the primary intent is to redirect the user to malicious sites. No scripts were extracted, and the PDF structure itself is the primary vector for the attack.

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/wix?keyword=dua+for+protection+from+harm
    • http://rujukil.ggshoneybeez.com/uploads/1/3/1/0/131070872/dixem.pdf
    • http://xubowoze.angmeringflowershow.co.uk/uploads/1/3/1/4/131454536/romenagasemejesu.pdf
    • http://files.crrhcc.com/uploads/1/3/2/7/132740343/4254485.pdf
    • http://files.bcreativeideas.com/uploads/1/3/1/6/131606173/3279034.pdf
    • http://mezijug.gfx-pro.net/uploads/1/3/1/4/131406082/9232858.pdf
    • http://naxiso.abitgraphic.com/uploads/1/3/1/4/131407355/1892163.pdf
    • http://files.metronbi.com/uploads/1/3/1/3/131381363/zeral.pdf
    • http://files.polevaultacademy.com/uploads/1/3/1/8/131856772/puwowukupevepe_modox_netipat_josusosovevuvi.pdf
    • http://jevage.bigbucksobx.com/uploads/1/3/1/3/131379362/4735203.pdf
    • https://static.usrfiles.com/ugd/b8c837_c9829c9b2a6b4d6ba758d775c2a5df50.pdf
    • https://static.usrfiles.com/ugd/b8c837_b773e220c0374784937e1a949d98038a.pdf
    • https://static.usrfiles.com/ugd/ccf397_6395674106f34413ace63209a2d71123.pdf
    • https://static.usrfiles.com/ugd/b5aed9_6eb5e985d7714f35a3b42c21cb9fc1bc.pdf
    • https://static.usrfiles.com/ugd/98d33d_0ec35c665da0436b87f6bb8487338188.pdf
    • https://static.usrfiles.com/ugd/a44510_6da8d788a8f242cb8bcbc207e2041c6e.pdf
    • https://static.usrfiles.com/ugd/e02969_f46902b130b242848ba51033a36f3fbd.pdf
    • https://static.usrfiles.com/ugd/9a242c_1fbfe566b19c47f2aa5cdb53ac560f60.pdf
    • https://static.usrfiles.com/ugd/c6ac46_ff1931d825254275a86c66deeb2849bb.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
stream_005_off0000b452.bin
71e10e373c807250f80a0927d633f97252641fe10b818878d9ef0e296e450a95
decompressed-pdf-stream PDF FlateDecoded stream at offset 0xB452 28056 bytes
font_00_sfnt_off00008028.bin
e743f888a034e42b2d65ac56b7cfd3466f69da73940291c81edcb548ff895a54
pdf-font-stream PDF embedded font (sfnt) at offset 0x8028 5044 bytes
font_01_sfnt_off00009133.bin
757c0b1f42307c3f0beeac5d6618c11addce667ff5cf06a3cf9ce41df566fa3d
pdf-font-stream PDF embedded font (sfnt) at offset 0x9133 10380 bytes