Malicious PDF — malware analysis report

Static analysis result for SHA-256 abd13bd539208c53…

MALICIOUS

PDF

35.7 KB Created: 2020-07-18 03:24:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8e122183518b6eeac51bf9be5833a63e SHA-1: 79d1aec3373837bc3def81921db18830d7729b6c SHA-256: abd13bd539208c532f432df70640c9f3d099959d7570c93bd25bf26c18046a35
140 Risk Score

Malware Insights

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

The PDF is an image-only document designed as a lure, containing a clickable link that redirects to malicious infrastructure. The PDF_IMAGE_LURE and PDF_MALICIOUS_REDIRECTOR_LINK heuristics confirm this. The document also contains a PDF link farm, with the primary redirector URL being ttraff.cc.

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.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 2 image(s), only 0 text block(s), carries a click-outward action, and is only 35 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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.cc/wb?keyword=lennox%207500%20thermostat%20installation%20manual
    • http://files.kdfiredup.com/uploads/1/3/1/4/131406811/risopawi_lenuvosokatibeb_vatuvedobiteja_nuxixoz.pdf
    • http://files.teammissionsports.com/uploads/1/3/0/7/130739850/5955825.pdf
    • http://files.skinnykittyfarms.com/uploads/1/3/0/7/130776826/gusapilupel_latoniw.pdf
    • https://bavorekivaso.files.wordpress.com/2020/06/46384447083.pdf
    • https://sikubisuv.files.wordpress.com/2020/07/tofagawalupad.pdf
    • https://mekerug368181460.files.wordpress.com/2020/06/76874051788.pdf
    • https://sifebefub.files.wordpress.com/2020/07/paxodosefokolewejibaki.pdf
    • https://wepolasonere.files.wordpress.com/2020/06/85334160418.pdf
    • https://tuwamekanud.files.wordpress.com/2020/07/galiga.pdf
    • https://kofanuga.files.wordpress.com/2020/07/tuxodixesoxeripirujowow.pdf
    • https://dorolej.files.wordpress.com/2020/06/rafokusefajet.pdf
    • https://sisukone.files.wordpress.com/2020/07/23983667586.pdf
    • https://cdn.shopify.com/s/files/1/0430/1609/3849/files/54254667435.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/test_1879eb6a-339e-4d45-a409-571cd94a4742.pdf?v=1594212285
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fuxojusi.pdf
    • https://cdn.shopify.com/s/files/1/0427/9818/6652/files/povesoneje.pdf
    • https://cdn.shopify.com/s/files/1/0431/0456/7450/files/5725415262.pdf
    • https://cdn.shopify.com/s/files/1/0433/4741/1096/files/pifakutonoxepusarepetemol.pdf
    • https://cdn.shopify.com/s/files/1/0432/6057/5912/files/1800223776.pdf
    • https://cdn.shopify.com/s/files/1/0432/6018/2692/files/12569869706.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_off000055ca.bin
ecbbe3c654eae8b6784f1317441cf60185493e6f9446f9530685a492d41d3304
pdf-font-stream PDF embedded font (sfnt) at offset 0x55CA 5160 bytes
font_01_sfnt_off00006733.bin
41bc99ff78d78feaf87e69af230554a0e0d78e5a13e29b0db38eb94e92a4929c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6733 7692 bytes