Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ff337dd7ae80dec…

MALICIOUS

PDF

41.1 KB Created: 2020-08-06 04:10:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 93bb712e6b4ad96f4dfb14382a1a86e0 SHA-1: 8fd6412e0a72f5c4245c1bf9877ef258b8df91e6 SHA-256: 8ff337dd7ae80decaa2e40b59b85864b653379f679e48fda62d3e3eedf98e837
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, specifically pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'Adele someone like you piano sheet pdf' and includes the malicious URL, suggesting a lure to trick users into downloading further content. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm strategy to obscure the malicious destination.

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=adele+someone+like+you+piano+sheet+pdf
    • http://files.sterlingenterprisesllc.com/uploads/1/3/1/4/131454238/rimezofenugiv_molukugevetanis.pdf
    • http://files.jamiegellingsmediablog.com/uploads/1/3/0/7/130740573/sebapidef.pdf
    • http://files.expandlivings.com/uploads/1/3/1/4/131406491/85813.pdf
    • http://raxesut.mytwinoakshoa.com/uploads/1/3/1/4/131453133/2778152.pdf
    • http://files.omarturbi.org/uploads/1/3/0/8/130874617/rozoxaxiwobesoduz.pdf
    • https://cdn.shopify.com/s/files/1/0435/9490/7810/files/54823251036.pdf
    • https://cdn.shopify.com/s/files/1/0434/8326/7236/files/22454186295.pdf
    • https://cdn.shopify.com/s/files/1/0437/8276/6743/files/28277267370.pdf
    • https://cdn.shopify.com/s/files/1/0432/5860/9817/files/starting_strength_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/5308/0985/files/tepagewesogune.pdf
    • https://cdn.shopify.com/s/files/1/0436/1509/2894/files/antioxidantes_versus_radicales_libres.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xizujebekox.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/31052941417.pdf
    • https://cdn.shopify.com/s/files/1/0428/8207/2732/files/43212877948.pdf
    • https://cdn.shopify.com/s/files/1/0429/6825/2565/files/xepuduzivikujegakozoj.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kuvesagapixunijibofalase.pdf
    • https://cdn.shopify.com/s/files/1/0438/1625/5650/files/90344764701.pdf
    • https://cdn.shopify.com/s/files/1/0429/2067/3433/files/62092050189.pdf
    • https://cdn.shopify.com/s/files/1/0434/7510/7990/files/3916508601.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_off000062c9.bin
ea6708784f44c2400b841f5b0ee4c1277c87327d42fb651034d4853aed654cbd
pdf-font-stream PDF embedded font (sfnt) at offset 0x62C9 5340 bytes
font_01_sfnt_off000074df.bin
b633d1ad37aed838dce8777638a6436a925102e69c3fe94cd776b88827238484
pdf-font-stream PDF embedded font (sfnt) at offset 0x74DF 10096 bytes