Malicious PDF — malware analysis report

Static analysis result for SHA-256 2aef6d107aeff8ca…

MALICIOUS

PDF

46.7 KB Created: 2020-07-28 14:37:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 954774b02dfa6508f3efc2734df87729 SHA-1: 49ad388a3f06722448b430daa69b99dacfe2013d SHA-256: 2aef6d107aeff8caf41b4584c683d89032aae550031668638c55b6ffd2b84a1c
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. Additionally, it features a PDF link farm heuristic, indicating a large number of outbound links, with 'cdn.shopify.com' being a dominant host. The document body, though heavily obfuscated, contains text related to Android development, potentially serving as a lure. The primary malicious IOC is the redirector URL, which is likely used to deliver a secondary payload or lead the user to a phishing site.

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.com/pify?keyword=android+listview+adapter+getview+return+null
    • http://files.nextbuildingforum.com/uploads/1/3/0/8/130813701/42d4f6afd1.pdf
    • http://files.ittstrading.com/uploads/1/3/1/4/131409200/02e16.pdf
    • http://files.episcopalyouthcamp.org/uploads/1/3/1/4/131438869/radozojoter.pdf
    • http://files.dunedinhempcompany.com/uploads/1/3/1/3/131379832/segix-pifugemorapu-vebupe.pdf
    • http://files.cardionrcc.com/uploads/1/3/1/8/131871605/67a3e62107.pdf
    • https://cdn.shopify.com/s/files/1/0428/2338/5247/files/purov.pdf
    • https://cdn.shopify.com/s/files/1/0433/6861/1989/files/baroxoliwofogobivolo.pdf
    • https://cdn.shopify.com/s/files/1/0432/9432/6939/files/fomaguxirivus.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/57896919986.pdf
    • https://cdn.shopify.com/s/files/1/0429/1274/3591/files/64831358569.pdf
    • https://cdn.shopify.com/s/files/1/0434/6763/6898/files/47776851427.pdf
    • https://cdn.shopify.com/s/files/1/0432/1270/1854/files/30114347342.pdf
    • https://cdn.shopify.com/s/files/1/0431/6564/7002/files/genomoteramar.pdf
    • https://cdn.shopify.com/s/files/1/0431/9353/2573/files/67093729435.pdf
    • https://cdn.shopify.com/s/files/1/0436/8993/5003/files/lerurilopeg.pdf
    • https://cdn.shopify.com/s/files/1/0434/1517/5335/files/68847015929.pdf
    • https://cdn.shopify.com/s/files/1/0428/0342/9535/files/titulozirabuzizobeviw.pdf
    • https://cdn.shopify.com/s/files/1/0440/7335/3381/files/madigaweneraduno.pdf
    • https://cdn.shopify.com/s/files/1/0431/3242/0262/files/72143102205.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/
    • https://cdn.shopify.com/s/files/1/0433/06

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d31.bin
f98163c0ff49b089f793e4f73d3c1330d855ce0edeead932b5f31c4629a3a03a
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D31 5152 bytes
font_01_sfnt_off00007ed2.bin
c5d0cf5da2f3904516bf5371fddfebd7d6dd5cfa0e818fec8ad3d2f914136b18
pdf-font-stream PDF embedded font (sfnt) at offset 0x7ED2 14592 bytes