Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9835a0134b98eb6…

MALICIOUS

PDF

96.2 KB Created: 2020-08-21 13:59:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 58b20003c4fe632a1e38e609cdbb76ae SHA-1: 12efd23b3b75942c18e8f6ea7c9ff9940520948c SHA-256: e9835a0134b98eb66739328f1292e329ee89677cb987be56a7a17bc903b97989
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=arm+cortex+m3+datasheet+pdf', suggesting a lure to download a PDF disguised as technical documentation. The presence of a malicious redirector indicates an attempt to lead the user to a compromised site or to initiate a further download. 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.com/pify?keyword=arm+cortex+m3+datasheet+pdf
    • http://files.sandlakegoldens.com/uploads/1/3/0/8/130874633/vokar.pdf
    • http://wexeb.cesariomateus.com/uploads/1/3/1/8/131856158/566cb96452.pdf
    • http://fujexe.gardentogourmet.com.au/uploads/1/3/1/4/131453674/dijejisasanu_pifejorori.pdf
    • http://files.msurunningclub.org/uploads/1/3/2/6/132683001/369356.pdf
    • https://cdn.shopify.com/s/files/1/0436/8950/9017/files/pro_guide_draven.pdf
    • https://cdn.shopify.com/s/files/1/0431/3966/1986/files/jimakaravokakepulini.pdf
    • https://cdn.shopify.com/s/files/1/0437/9269/5456/files/berarumaxuxokadidid.pdf
    • https://cdn.shopify.com/s/files/1/0435/8540/5089/files/equality_act_2020_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/2187/6900/files/5106640641.pdf
    • https://cdn.shopify.com/s/files/1/0434/0259/2410/files/duzupijani.pdf
    • https://cdn.shopify.com/s/files/1/0434/0816/2981/files/kimisebemomopavidibatiza.pdf
    • https://cdn.shopify.com/s/files/1/0432/0631/2098/files/zip_folders_linux.pdf
    • https://cdn.shopify.com/s/files/1/0431/6535/2093/files/neopets_shop_directory.pdf
    • https://cdn.shopify.com/s/files/1/0437/6484/2647/files/xujezutaxapitesigififen.pdf
    • https://cdn.shopify.com/s/files/1/0454/2873/6168/files/zamosatowexepoduwuladepa.pdf
    • https://cdn.shopify.com/s/files/1/0435/7737/6936/files/ahk_key_list.pdf
    • https://cdn.shopify.com/s/files/1/0430/1615/9385/files/21453725882.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_off00010daf.bin
61ad1dd63cc150433828b2c59581407b7e887e43892f9dcf8e6f56752d4551f9
pdf-font-stream PDF embedded font (sfnt) at offset 0x10DAF 9724 bytes
font_01_sfnt_off00012cf2.bin
234541f4593863cfe9dad5effc332bc8f0fe8026664196c5f880da4eadfdc798
pdf-font-stream PDF embedded font (sfnt) at offset 0x12CF2 5584 bytes
font_02_sfnt_off00013fca.bin
f3a3fda371b5cf47155cb8fbfb5dc41e4938a7ac92f5dbf2b30c9b6333ceafcf
pdf-font-stream PDF embedded font (sfnt) at offset 0x13FCA 16416 bytes