Malicious PDF — malware analysis report

Static analysis result for SHA-256 e00819b185230b3e…

MALICIOUS

PDF

43.9 KB Created: 2020-09-10 18:50:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4520935615c9f4c0deafbaae3366cb3d SHA-1: 8eb53210607309c1f891f367badae3150501e0b0 SHA-256: e00819b185230b3ef3660dc55cee6ebfec4346a5fab21ed96cb643efe7cadd36
120 Risk Score

Malware Insights

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

The PDF document contains a mass external link farm, with many links pointing to PDF files hosted on various domains. One critical heuristic identified a malicious redirector link, and another flagged the extensive link farm. The document body, though partially corrupted, contains a URL that appears to be part of a lure for a 'Soundcloud er pro iphone' search, suggesting a phishing or scam attempt to drive traffic to malicious sites.

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.link/wix?keyword=soundcloud+er+pro+iphone
    • http://rivevu.blatheringpoint.com/uploads/1/3/1/0/131069839/2496210.pdf
    • http://files.cvpitvn.com/uploads/1/3/1/6/131637553/mugotas.pdf
    • http://lubabel.somaticsoundtherapeutics.com/uploads/1/3/0/8/130874211/lulixu.pdf
    • http://files.sanjosedelosreynoso.com/uploads/1/3/1/4/131437139/438632.pdf
    • http://files.sportingservices.net/uploads/1/3/0/9/130969744/mazogubifuraboba.pdf
    • http://gepuzobi.danecountymedicalsociety.org/uploads/1/3/2/8/132814930/difij.pdf
    • http://pumikaxa.adrianbaldwin.net/uploads/1/3/2/3/132302780/dukejilavugiget.pdf
    • http://files.risers4u.com/uploads/1/3/1/3/131398533/rudonerosilemeg-gumuz-tinamukupodek.pdf
    • https://cdn.shopify.com/s/files/1/0434/2969/1558/files/answered_prayer_bible_verses.pdf
    • https://cdn.shopify.com/s/files/1/0427/9776/0668/files/tidelorumibogitajewajakub.pdf
    • https://static.usrfiles.com/ugd/8acad3_d57c9b097a5f4ad8b686425ac99c6a52.pdf
    • https://static.usrfiles.com/ugd/8e6e76_d2df929cd3c6486482a0524c2a9decff.pdf
    • https://static.usrfiles.com/ugd/51c472_b907f7fa6ced4904a9682ad01a9bde10.pdf
    • https://static.usrfiles.com/ugd/95bb70_3e24a40faaeb41a688827b0f320df4f5.pdf
    • https://static.usrfiles.com/ugd/9e14ca_5045cac381e84f3fa4e1f85f4491f3be.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_off000060cc.bin
e2b9df09326a6c06c0d2fdd70c7d0cc4498052e809655627f5372e4747462305		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60CC 4680 bytes
font_01_sfnt_off00007091.bin
4e9f1fee37b74c61c2979f1476bad93583f4263e45ca8beb3ad8a86897da4d5a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7091 10552 bytes
font_02_sfnt_off000094ba.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x94BA 4324 bytes

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