Malicious PDF — malware analysis report

Static analysis result for SHA-256 c414d1db7b68da7a…

MALICIOUS

PDF

43.1 KB Created: 2020-08-08 23:53:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aa6bae3ab1916768ed1d5975c6d9e6c4 SHA-1: f0087b8539264be79d2a973b47a5ad0e9cefee93 SHA-256: c414d1db7b68da7aae103258d436d69d7f65e09c82390274e761310b9a435388
140 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to ttraff.com, which is known for malicious activity. Additionally, it features a large number of external PDF links, suggesting a link farm or SEO poisoning tactic. The document body also contains a callback lure, indicating a potential phishing or tech-support scam. No scripts were extracted from this sample.

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.com/pify?keyword=concerto+in+d+minor+for+two+violins+pdf
    • http://files.tghair.co/uploads/1/3/0/9/130969440/desekesulebone.pdf
    • http://files.kvag.net/uploads/1/3/1/3/131380263/cb8d7f.pdf
    • http://bojak.thefreedominsimple.com/uploads/1/3/1/8/131871871/86714aa.pdf
    • http://files.evergreenmeditations.org/uploads/1/3/0/8/130815009/864341248fdc.pdf
    • https://cdn.shopify.com/s/files/1/0437/7283/8039/files/fidetasujaf.pdf
    • https://cdn.shopify.com/s/files/1/0435/3681/0152/files/wemelagetujudaxabipul.pdf
    • https://cdn.shopify.com/s/files/1/0432/0804/8808/files/ashby_materials_selection_in_mechanical_design_4th.pdf
    • https://cdn.shopify.com/s/files/1/0436/2207/2480/files/imagine_dragons_night_visions_songs.pdf
    • https://cdn.shopify.com/s/files/1/0430/8375/9765/files/36427142602.pdf
    • https://cdn.shopify.com/s/files/1/0429/2640/7833/files/bizeruluwezakizulis.pdf
    • https://cdn.shopify.com/s/files/1/0430/5901/9933/files/xovigirojetupar.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/moxudenolaruxorurafugi.pdf
    • https://cdn.shopify.com/s/files/1/0434/5187/5481/files/sistema_bethesda_tiroides.pdf
    • https://cdn.shopify.com/s/files/1/0433/3489/3718/files/iicrc_s500_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/4978/7285/files/axis_bank_net_banking_application_form.pdf
    • https://cdn.shopify.com/s/files/1/0431/5208/1053/files/99259458164.pdf
    • https://cdn.shopify.com/s/files/1/0432/5621/7750/files/14575839570.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_off00005fb3.bin
a288d47cc35b535299c3b8bd98051d2e6d54ca5a72022df98fc8749744153ba1
pdf-font-stream PDF embedded font (sfnt) at offset 0x5FB3 5148 bytes
font_01_sfnt_off00007131.bin
6e9c2225690a294e4d6e366e768ddc3c6fb43e152ccb516d6bcc7b5d919d3d7e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7131 2060 bytes
font_02_sfnt_off00007ada.bin
c889e9ee79b5969574057e05e56d4d2009c0bee33b3cd6f9b6f93948840d9887
pdf-font-stream PDF embedded font (sfnt) at offset 0x7ADA 10420 bytes