Malicious PDF — malware analysis report

Static analysis result for SHA-256 49ee413bfd16d637…

MALICIOUS

PDF

42.7 KB Created: 2020-08-06 18:00:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5751391396c58a0d245bcbaf8005523f SHA-1: 38573bea9704b05c9d445bbce95571af9e36cb62 SHA-256: 49ee413bfd16d637b1bb3852a87c04764b9154dd81660d4762d4df6b781b6565
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF SEO link farm, embedding numerous links, many of which point to benign Shopify domains but are likely used to obscure the malicious intent. The document body itself is heavily obfuscated and contains the malicious URL, suggesting it's a lure. No scripts were extracted, but the primary attack vector appears to be directing users to malicious infrastructure.

Heuristics 3

  • 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.
  • 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=brassage+interchromosomique+et+intrachromosomique+pdf
    • http://files.ikesbagelcafe.net/uploads/1/3/1/4/131408103/kimatu.pdf
    • http://files.jinshorestaurant.com/uploads/1/3/2/6/132682745/wadoruku_redegapab_wixas_vapovorupogo.pdf
    • http://files.bustingbibleignorance.com/uploads/1/3/1/3/131383743/3470588.pdf
    • http://files.msbronson.com/uploads/1/3/2/8/132814342/mexeritefupakanilupi.pdf
    • https://cdn.shopify.com/s/files/1/0431/1711/7601/files/bacon_selected_essays.pdf
    • https://cdn.shopify.com/s/files/1/0432/8757/6740/files/92113261411.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/13121593915.pdf
    • https://cdn.shopify.com/s/files/1/0430/8910/0957/files/66398914321.pdf
    • https://cdn.shopify.com/s/files/1/0434/6642/4470/files/luweruzexodab.pdf
    • https://cdn.shopify.com/s/files/1/0429/4259/5239/files/dewejalowi.pdf
    • https://cdn.shopify.com/s/files/1/0428/4655/2227/files/43982226385.pdf
    • https://cdn.shopify.com/s/files/1/0437/6972/5085/files/43848580172.pdf
    • https://cdn.shopify.com/s/files/1/0429/2725/9811/files/19785945677.pdf
    • https://cdn.shopify.com/s/files/1/0427/4146/5244/files/adda_247_di_book_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/8032/7076/files/dikifidis.pdf
    • https://cdn.shopify.com/s/files/1/0429/4819/8556/files/93153926668.pdf
    • https://cdn.shopify.com/s/files/1/0431/7285/5967/files/how_to_bypass_study._com_paywall.pdf
    • https://cdn.shopify.com/s/files/1/0440/6162/2437/files/monitoring_and_evaluation_plan.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_off00006305.bin
0996b819760233a923020b0108a50f80eeea9e5bc48a75c98411a748bb3eb22b
pdf-font-stream PDF embedded font (sfnt) at offset 0x6305 5712 bytes
font_01_sfnt_off00007647.bin
7a799ec0ae493bd4a6855348fefac5a0f4b5d5684420ed6e5f0cf9756214a65a
pdf-font-stream PDF embedded font (sfnt) at offset 0x7647 11732 bytes