Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f80a326c0c95a54…

MALICIOUS

PDF

51.1 KB Created: 2020-08-30 23:55:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f95104f25adfe494557847ae3e478fb7 SHA-1: b6589c228df2c67f5990cfa16b6a457222de4819 SHA-256: 9f80a326c0c95a54868f1fb8cbf9ef23daf527ea794b8d7d478910e921ff169e
128 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic indicating it links to known malicious redirector infrastructure, specifically 'ttraff.com'. It also exhibits characteristics of a PDF link farm, with numerous links pointing to Shopify domains, likely as a method to obscure the final malicious destination. The document body, though heavily obfuscated, contains the primary malicious URL. No scripts were extracted, but the presence of a malicious redirector and link farm strongly suggests a phishing or social engineering attack aimed at directing users to harmful content.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/wix?keyword=bushcraft+richard+graves+pdf
    • https://chrismolloy.com/bushcraft
    • https://cdn.shopify.com/s/files/1/0428/7964/7903/files/93245659984.pdf
    • https://cdn.shopify.com/s/files/1/0431/1715/0368/files/8683634035.pdf
    • https://cdn.shopify.com/s/files/1/0427/5427/7532/files/zupefun.pdf
    • https://cdn.shopify.com/s/files/1/0429/8945/3473/files/zexakoluzawi.pdf
    • https://cdn.shopify.com/s/files/1/0433/4911/5029/files/75741610357.pdf
    • https://cdn.shopify.com/s/files/1/0435/9559/5938/files/81682712780.pdf
    • https://cdn.shopify.com/s/files/1/0429/1608/5916/files/41833161153.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27347714529.pdf
    • https://cdn.shopify.com/s/files/1/0430/0174/1463/files/75395993599.pdf
    • https://cdn.shopify.com/s/files/1/0436/5041/6793/files/customer_service_interview_questions_and_answers_orange.pdf
    • https://cdn.shopify.com/s/files/1/0430/9814/4932/files/53344148345.pdf
    • https://cdn.shopify.com/s/files/1/0427/7207/0556/files/zetibadobategusuv.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71061356311.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_off00007cb4.bin
d26d97a7b1d02cb089ca8b5d1cc513946d2136a47116564a9a07d12a4341eb1d
pdf-font-stream PDF embedded font (sfnt) at offset 0x7CB4 5160 bytes
font_01_sfnt_off00008e63.bin
0ed0b0f1b68b664f975e091f1ba269b012dfff822ccc58d6289360df4403ecf2
pdf-font-stream PDF embedded font (sfnt) at offset 0x8E63 10328 bytes
font_02_sfnt_off0000b1b3.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0xB1B3 4324 bytes