Malicious PDF — malware analysis report

Static analysis result for SHA-256 48e48110e0b9f3d6…

MALICIOUS

PDF

50.4 KB Created: 2020-08-11 03:56:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 74079f79fc7b30b7132d01069c46904e SHA-1: af3e65a6d9ffc9528f3a7223ef9b094228bd34b3 SHA-256: 48e48110e0b9f3d65011fd80c94e3b591b86552741ea0b6d1093ae585cdad69a
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector. The primary malicious URL is https://ttraff.cc/pify?keyword=alessandro+baricco+l+iliade+pdf, which is likely used to redirect users to a malicious site. The document body, though heavily obfuscated, contains references to this URL and other PDF links, reinforcing the lure. The presence of numerous PDF links suggests a tactic to evade detection or to appear as a legitimate document repository.

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=alessandro+baricco+l+iliade+pdf
    • http://pamipobu.alsonmarketing.com/uploads/1/3/1/6/131637881/2811949.pdf
    • http://files.vprakash.com/uploads/1/3/2/3/132303238/8767865.pdf
    • http://mukux.beealienphotography.com/uploads/1/3/1/4/131483453/xodawiku_jiveteza_fogelisixixi.pdf
    • http://files.scottmdouglas.com/uploads/1/3/1/4/131455832/sobesilume.pdf
    • https://cdn.shopify.com/s/files/1/0440/8557/5832/files/camera_lucida_book.pdf
    • https://cdn.shopify.com/s/files/1/0430/3562/3578/files/mabizitidijarufoluwudin.pdf
    • https://cdn.shopify.com/s/files/1/0430/6075/6641/files/98166641345.pdf
    • https://cdn.shopify.com/s/files/1/0440/3937/2965/files/tefukigazumowojabarewuris.pdf
    • https://cdn.shopify.com/s/files/1/0435/6410/5886/files/ruxufepurukufibojaxisam.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/97143341085.pdf
    • https://cdn.shopify.com/s/files/1/0429/4112/0679/files/viper_alarm_installation_manual.pdf
    • https://cdn.shopify.com/s/files/1/0437/2067/1384/files/sijodipufijipiniluwomifud.pdf
    • https://cdn.shopify.com/s/files/1/0433/3341/9162/files/mufawitiri.pdf
    • https://cdn.shopify.com/s/files/1/0432/0323/1908/files/2413198637.pdf
    • https://cdn.shopify.com/s/files/1/0433/0097/8853/files/pesojipedesi.pdf
    • https://cdn.shopify.com/s/files/1/0428/3141/3414/files/fozunekawiwidemu.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_off00007a98.bin
ec38f18e6abfe93a560974f74d9ae24fb89d45e95af10f3e6505f3b4e4d8448f
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A98 4988 bytes
font_01_sfnt_off00008b7a.bin
368fd3fcf8740a39219bc56cd09af35615432a012c842a18a18ad9e83ec582b6
pdf-font-stream PDF embedded font (sfnt) at offset 0x8B7A 10872 bytes
font_02_sfnt_off0000aea0.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0xAEA0 4324 bytes