Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5188a14be67e489…

MALICIOUS

PDF

43.9 KB Created: 2020-09-17 18:57:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5b73df94c77e69c9764f33a39567e42f SHA-1: e1e28d47d7f39302b77db13c9fea3203b41093df SHA-256: f5188a14be67e489436111910896564e0db1499aebd633cfca4de408cabd802b
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One critical heuristic identified a link to a known malicious redirector, `https://ttraff.me/pify?keyword=fort+indiantown+gap+national+cemetery+directory`, which likely serves as a lure to further malicious content. The document body, though heavily obfuscated, contains references to a directory and the authoring application, suggesting a deceptive pretext for the embedded links.

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.me/pify?keyword=fort+indiantown+gap+national+cemetery+directory
    • http://files.gogreenparkridge.org/uploads/1/3/1/8/131856491/4ccc7cd.pdf
    • http://kupekapu.letsplaymusicstudio.com/uploads/1/3/1/4/131453870/biwit_renokinurovera_kixekebafikadat.pdf
    • http://files.truthministryaz.org/uploads/1/3/2/6/132695354/9901905.pdf
    • http://files.ramblingmillenial.com/uploads/1/3/1/3/131381204/faguzobugijitop-tipigebukima-vokavisa.pdf
    • http://files.sundointernational.com/uploads/1/3/1/3/131383848/tapujapirezutod.pdf
    • http://filova.jpdentertainment.com/uploads/1/3/1/4/131452839/ee243301d.pdf
    • http://files.malcolm-morris.com/uploads/1/3/2/6/132695360/f296646f8eb631.pdf
    • http://files.marjazapusek.net/uploads/1/3/1/8/131856176/jepotugurek_bebapiwovujumu.pdf
    • http://rajizu.coachesathletic.com/uploads/1/3/2/6/132681670/9273976.pdf
    • http://kebagok.koboxingusa.com/uploads/1/3/0/7/130775403/gesuxu.pdf
    • https://cdn.shopify.com/s/files/1/0441/3738/2040/files/french_revolution_test.pdf
    • https://cdn.shopify.com/s/files/1/0427/8288/4006/files/25845879621.pdf
    • https://cdn.shopify.com/s/files/1/0432/5516/9182/files/62589921868.pdf
    • https://cdn.shopify.com/s/files/1/0431/4316/8156/files/personal_essay_about_yourself_examples.pdf
    • https://cdn.shopify.com/s/files/1/0433/6880/8613/files/rowaxanitogat.pdf
    • https://4239b285-a217-45de-9b28-7971f8115b5d.filesusr.com/ugd/69695d_ddd6b1ddf74d4f9db2fe8d0af17bdd06.pdf?index=true
    • https://02fd8685-f45b-4a4a-8869-ff391076ea14.filesusr.com/ugd/f523c3_3099dbe9dce4476aa0b3838cd6ac8e6b.pdf?index=true
    • 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/
    • https://02fd8685-f45b-4a4a-8869-ff391076ea14.filesusr.com/ugd/f523c3_3099dbe9dce4476aa0b383

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006023.bin
0037f3b07a8885285d0dcad5f2e1d1c21595ca4094cc9471e1ff4e84206f5d4d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6023 5152 bytes
font_01_sfnt_off000071a8.bin
d9f32a21f22c3b8410f6de48ce6bfdbacd5b446f9ebc6e1a028a6e004c266808		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71A8 10128 bytes
font_02_sfnt_off00009457.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9457 4324 bytes

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