Malicious PDF — malware analysis report

Static analysis result for SHA-256 45b07df84813f1c6…

MALICIOUS

PDF

43.6 KB Created: 2020-08-18 21:32:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1459b334d9bf8867633a0836cace11cf SHA-1: 409af2019ba1ee7925aeec66637d2f428dd70b75 SHA-256: 45b07df84813f1c63f20112949806a2d748a6e1ba4f073c1ccfd16b72ca123d2
140 Risk Score

Malware Insights

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

The PDF contains a link to a redirector ('ttraff.cc') disguised as contact information for 'apprenticeship manitoba'. This, combined with the heuristic indicating a link farm and a callback phishing lure, suggests the document is designed to lead users to malicious sites or engage them in a scam. The presence of numerous embedded links, many pointing to shopify.com, further supports the link farm heuristic.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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/pify?keyword=apprenticeship+manitoba+contact+information
    • http://files.drcarolineclarke.com/uploads/1/3/1/8/131872021/fuxibizu.pdf
    • http://files.zanyunoodles.com/uploads/1/3/0/7/130739381/sikete-wemotuta.pdf
    • http://matat.centrechurchvermont.org/uploads/1/3/1/4/131453784/6766337.pdf
    • http://files.dlsu-aki.com/uploads/1/3/1/4/131437074/a73b2cc47d8.pdf
    • https://cdn.shopify.com/s/files/1/0434/6534/3126/files/carpal_varus_deformity_in_dogs.pdf
    • https://cdn.shopify.com/s/files/1/0435/2966/6724/files/89156761492.pdf
    • https://cdn.shopify.com/s/files/1/0450/7313/7827/files/49888204089.pdf
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/fazatopefape.pdf
    • https://cdn.shopify.com/s/files/1/0437/5396/3678/files/21949057495.pdf
    • https://cdn.shopify.com/s/files/1/0436/2433/3472/files/hoyle_card_games_for_windows_10.pdf
    • https://cdn.shopify.com/s/files/1/0430/9801/3857/files/demarizagi.pdf
    • https://cdn.shopify.com/s/files/1/0436/8665/8213/files/16956132743.pdf
    • https://cdn.shopify.com/s/files/1/0429/8915/8554/files/aircraft_structures_and_systems_ray_wilkinson.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_off00005f42.bin
03f080e3d196de6d4a3e9e86f2a55471fbfb9ed3a16fe444941e867383a4b8bf
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F42 5140 bytes
font_01_sfnt_off00007076.bin
65d62510f12e7f930a60c0d5f18e9a5fbe62d8acfb4382bd6b6593ba98b1857b
pdf-font-stream PDF embedded font (sfnt) at offset 0x7076 10168 bytes
font_02_sfnt_off00009330.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x9330 4324 bytes