Malicious PDF — malware analysis report

Static analysis result for SHA-256 e82517dcb60ba7cd…

MALICIOUS

PDF

42.7 KB Created: 2020-08-08 09:01:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4ff7bf1a9ea032f2acc77a0e08b7db64 SHA-1: 4264aa1311e95d3a28b746ec276861c361cef716 SHA-256: e82517dcb60ba7cd3bf40667cff3a77e115299d7d88a40c1add8042628eb087b
160 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 pointing to Shopify domains, but also includes a critical redirector link to ttraff.com. The document body, though garbled, appears to be a lure related to 'the theory of island biogeography', likely to disguise the malicious intent of the embedded links. The presence of a visible LOLBin command execution instruction suggests potential for further malicious activity beyond simple redirection.

Heuristics 4

  • 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.
  • Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND
    Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
  • 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.com/pify?keyword=the+theory+of+island+biogeography+1967+pdf
    • http://files.danceartsofcentralnj.com/uploads/1/3/1/4/131438604/4408032.pdf
    • http://rolopifeb.radiadoresmm.com/uploads/1/3/1/6/131637881/jekamen-dawofakamonuv-vujojesovov-nididasewi.pdf
    • http://gamafa.amplifiedmobiledj.com/uploads/1/3/2/6/132682787/lamolokanegas.pdf
    • http://files.majuljewelry.com/uploads/1/3/2/6/132681928/gibagabagaduz.pdf
    • http://files.acmdev.net/uploads/1/3/1/1/131164067/8c8f0e92cc924.pdf
    • https://cdn.shopify.com/s/files/1/0427/9504/0924/files/nijuvit.pdf
    • https://cdn.shopify.com/s/files/1/0433/8037/5702/files/9604558906.pdf
    • https://cdn.shopify.com/s/files/1/0435/7442/7806/files/81721130216.pdf
    • https://cdn.shopify.com/s/files/1/0431/4886/9786/files/.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/3218030698.pdf
    • https://cdn.shopify.com/s/files/1/0429/6749/8911/files/62736985275.pdf
    • https://cdn.shopify.com/s/files/1/0433/9410/5509/files/taladererudenitazos.pdf
    • https://cdn.shopify.com/s/files/1/0431/2278/6466/files/84961857415.pdf
    • https://cdn.shopify.com/s/files/1/0439/0453/2648/files/52820579523.pdf
    • https://cdn.shopify.com/s/files/1/0431/7950/7870/files/sidamig.pdf
    • https://cdn.shopify.com/s/files/1/0431/1128/4885/files/76861317564.pdf
    • https://cdn.shopify.com/s/files/1/0435/3101/0199/files/xamepokemejoxuju.pdf
    • https://cdn.shopify.com/s/files/1/0428/9321/3855/files/xupatejesupugefunazazeg.pdf
    • https://cdn.shopify.com/s/files/1/0440/0214/8510/files/gupokazixebejuburivux.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067cd.bin
75e6eeb3a278e7f280601c526341581c854b7bdad49fa36786499ac4d1c2a596
pdf-font-stream PDF embedded font (sfnt) at offset 0x67CD 5936 bytes
font_01_sfnt_off00007c08.bin
b5d2cd719083cbd4502bf24eb1fc310521eb7c335faa20bb934cc4358f28e9c4
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C08 9868 bytes