Malicious PDF — malware analysis report

Static analysis result for SHA-256 20411ee5417b0620…

MALICIOUS

PDF

62.5 KB Created: 2020-08-01 23:36:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cb110c5ffd8414912f821e58f18a4a8b SHA-1: 691fe1c1bd567475d2f542af3e4f0e9c07bdd326 SHA-256: 20411ee5417b06208bae07f42494bba444d28c8706a8d8831d6a60d419b12f7c
128 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic indicating it links to a known malicious redirector. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=boise+id+tv+listings', which is flagged as malicious. The presence of urgency language further supports a phishing or scamming attempt.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=boise+id+tv+listings
    • http://files.websters-quincy.com/uploads/1/3/1/3/131379039/rajop-femofogiwed-lolesebesiba.pdf
    • http://files.thehungryveganhi.com/uploads/1/3/1/4/131438784/78c925072b964c.pdf
    • http://files.fhpsc.ca/uploads/1/3/1/4/131454190/sikifunem.pdf
    • http://files.wsochicago.com/uploads/1/3/2/7/132740659/linasuripemur.pdf
    • http://files.aging-success.com/uploads/1/3/0/7/130776578/vezireputedifo_bixate_tarup_sazisoregon.pdf
    • https://cdn.shopify.com/s/files/1/0430/2045/1997/files/podisurajoxi.pdf
    • https://cdn.shopify.com/s/files/1/0434/5865/8454/files/jigejukimomolagufez.pdf
    • https://cdn.shopify.com/s/files/1/0431/0417/4233/files/jomujosedaja.pdf
    • https://cdn.shopify.com/s/files/1/0430/8844/5604/files/atomics_virtual_dj.pdf
    • https://cdn.shopify.com/s/files/1/0440/7879/2869/files/83720768683.pdf
    • https://cdn.shopify.com/s/files/1/0428/2331/9715/files/xiturivimiwufabubu.pdf
    • https://cdn.shopify.com/s/files/1/0428/5664/4774/files/gewozalopadugobuk.pdf
    • https://cdn.shopify.com/s/files/1/0431/0433/8073/files/guwifafijagu.pdf
    • https://cdn.shopify.com/s/files/1/0432/9704/6696/files/39949259849.pdf
    • https://cdn.shopify.com/s/files/1/0430/7258/5888/files/pizomafarufodupexuzod.pdf
    • https://cdn.shopify.com/s/files/1/0433/0464/8859/files/kewujegazazebugotowet.pdf
    • https://cdn.shopify.com/s/files/1/0435/8147/2929/files/pijagizav.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_off0000a427.bin
3455976ff26f84db53975e190032534f2afe74aa734c9d0564ddd27d83fe53af
pdf-font-stream PDF embedded font (sfnt) at offset 0xA427 4584 bytes
font_01_sfnt_off0000b3d5.bin
cb5ffc840f9f5e94ce68e9b4bfa7a0725ffb5451fde4b0e85058e7b1df037033
pdf-font-stream PDF embedded font (sfnt) at offset 0xB3D5 13624 bytes
font_02_sfnt_off0000def2.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0xDEF2 4324 bytes