Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d89fce1980ff96b…

MALICIOUS

PDF

46.9 KB Created: 2020-09-10 05:52:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6dbf9e644db836a7b10d7f2387c78fa9 SHA-1: b359f473363e64d340c9617c0ecc7407c6000841 SHA-256: 4d89fce1980ff96b1777d835c4f97fab8f86ecd4ccd0893a964d7e811dec59b6
120 Risk Score

Malware Insights

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

The PDF document contains a link farm, with many links pointing to various PDF files hosted on Shopify and other domains. One of the primary links, 'https://ttraff.link/wix?keyword=come+eliminare+un+account+instagram+da+android', is identified as a malicious redirector. The document body, though partially corrupted, contains the same lure text as the malicious URL, indicating a social engineering attempt to trick users into clicking the malicious link. No scripts were extracted from this sample.

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=come+eliminare+un+account+instagram+da+android
    • http://vikuvux.patanjali-yoga.info/uploads/1/3/0/7/130739625/tusufil_lulalapamu.pdf
    • http://files.mmls.us/uploads/1/3/0/7/130776887/lajapevulogu.pdf
    • http://files.excellenteagle.com/uploads/1/3/0/8/130873715/9789bbf18.pdf
    • http://files.jessicawasserman.com/uploads/1/3/0/9/130969298/37d0bf.pdf
    • http://files.cvma32-2.com/uploads/1/3/2/6/132680986/0e84501798.pdf
    • http://tokurin.michelleconsidine.com/uploads/1/3/0/7/130775350/576ae04240232b.pdf
    • http://mavaratar.skylarktrustbank.com/uploads/1/3/0/7/130738731/likep.pdf
    • http://files.granitemalamutes.com/uploads/1/3/0/9/130969985/jafegotugadovum-xalor-zofetobawiv-kazubudunexine.pdf
    • http://files.dancedynamicsne.com/uploads/1/3/1/4/131409677/vidakonefuk.pdf
    • https://cdn.shopify.com/s/files/1/0435/0522/1784/files/reading_for_7th_graders_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0429/4901/7756/files/65346219775.pdf
    • https://cdn.shopify.com/s/files/1/0433/8352/1445/files/solving_equations_practice.pdf
    • https://cdn.shopify.com/s/files/1/0434/1065/3338/files/39305141582.pdf
    • https://cdn.shopify.com/s/files/1/0433/3459/8809/files/98085174907.pdf
    • https://static.usrfiles.com/ugd/b8c837_423207164244401794b466760c6e51b7.pdf
    • https://static.usrfiles.com/ugd/1e533a_e134504a284445028dcaf25ab7770af8.pdf
    • https://static.usrfiles.com/ugd/2ac701_7b76adaea5a940a081e3cb374374ea84.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_off00006b28.bin
3ef8cb550409c1d739c0d8540a3f01c746bead4c0158e83caa423f245843f045
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B28 5164 bytes
font_01_sfnt_off00007c93.bin
5362f5c785dd78e0e78e077030af57d79a881ae4cf88c7c8f71ef545a8108015
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C93 10384 bytes
font_02_sfnt_off0000a01c.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0xA01C 4324 bytes