Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3c903e45bddd461…

MALICIOUS

PDF

47.1 KB Created: 2020-08-23 07:16:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bb5e21bd1255e7dce7c2593ffc025feb SHA-1: 6b0e2d576fe950dfb582a5cf6bcc36187e94f5a4 SHA-256: c3c903e45bddd46143c4c4b9851864b857e7039794b23234c917be7d641af0b1
148 Risk Score

Malware Insights

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

The PDF file contains a high number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link redirects to a known malicious domain (ttraff.cc). The document body, though heavily obfuscated, contains the phrase 'Emergency contact list template for babysitter' and a URL that matches the malicious redirector. The presence of a callback lure heuristic suggests a phishing or scam attempt, further supported by the malicious redirector.

Heuristics 5

  • 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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=emergency+contact+list+template+for+babysitter
    • http://lifegon.greengiftseg.com/uploads/1/3/1/3/131383478/9864745.pdf
    • https://cdn.shopify.com/s/files/1/0432/5031/9528/files/best_tablet_for_viewing_files.pdf
    • https://cdn.shopify.com/s/files/1/0440/7122/3446/files/75469137638.pdf
    • https://cdn.shopify.com/s/files/1/0430/6265/7177/files/princess_bedtime_stories_with_pictures.pdf
    • https://cdn.shopify.com/s/files/1/0445/7860/3172/files/chloroform_function_in_rna_isolation.pdf
    • https://cdn.shopify.com/s/files/1/0428/0736/1703/files/xirix.pdf
    • https://cdn.shopify.com/s/files/1/0434/7386/2808/files/92547075855.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bixebor.pdf
    • https://cdn.shopify.com/s/files/1/0433/6202/5624/files/44076635446.pdf
    • https://cdn.shopify.com/s/files/1/0428/5412/1635/files/99604967397.pdf
    • https://cdn.shopify.com/s/files/1/0431/1079/3370/files/budget_speech_2020_summary.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_off00006334.bin
d2881a135761cde7d1ec07d6f9ada25449c478ff836377fc57faf8fb45683896
pdf-font-stream PDF embedded font (sfnt) at offset 0x6334 5532 bytes
font_01_sfnt_off000075ee.bin
aba5ddf071b2693e328e895f1c01b8b9ebffbd3434404d560399ed5615b68bf1
pdf-font-stream PDF embedded font (sfnt) at offset 0x75EE 10072 bytes
font_02_sfnt_off0000988a.bin
a81095f5c133805916e94a9cf0968286d307860237fa4db69c82f20056c89930
pdf-font-stream PDF embedded font (sfnt) at offset 0x988A 16948 bytes