Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d2d39e1805545f1…

MALICIOUS

PDF

46.0 KB Created: 2020-08-19 00:53:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 88f65e1a5d5c98f18f1118a51383cb4a SHA-1: 04f9b79c5131c12cb16eef9688007b53df1e268d SHA-256: 4d2d39e1805545f11a3e8d8855f4075918824bdca287fc9c96f517088de8c89b
128 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. Another heuristic indicates a PDF link farm, with the first URL pointing to a Shopify domain, which is likely used to host further malicious content. The presence of a download button lure reinforces the malicious intent.

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.
  • 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.com/pify?keyword=adelicia+script+rough+free
    • http://files.thevillasatpleasantvalley.com/uploads/1/3/1/8/131856173/10b65321d8.pdf
    • http://wopawala.cindypolleyphotography.com/uploads/1/3/0/7/130740019/61d0abced1a6.pdf
    • https://cdn.shopify.com/s/files/1/0434/0760/5910/files/xasixerowivef.pdf
    • https://cdn.shopify.com/s/files/1/0433/8348/8679/files/fowamezazewolamidu.pdf
    • https://cdn.shopify.com/s/files/1/0432/1627/3563/files/64581033510.pdf
    • https://cdn.shopify.com/s/files/1/0428/9481/9484/files/7906273203.pdf
    • https://cdn.shopify.com/s/files/1/0431/8917/4432/files/89619958526.pdf
    • https://cdn.shopify.com/s/files/1/0433/8905/9228/files/brand_banjo_new_song.pdf
    • https://cdn.shopify.com/s/files/1/0438/8693/6219/files/16755185.pdf
    • https://cdn.shopify.com/s/files/1/0430/2936/4885/files/15714154639.pdf
    • https://cdn.shopify.com/s/files/1/0430/5597/2505/files/71209224693.pdf
    • https://cdn.shopify.com/s/files/1/0429/1405/4300/files/ncert_accountancy_book_class_11_part_2.pdf
    • https://cdn.shopify.com/s/files/1/0431/9795/6258/files/dinawabubemudarigevejixiv.pdf
    • https://cdn.shopify.com/s/files/1/0433/4924/6110/files/basatabol.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_off00005fa9.bin
f42d1f9cedd4526fd8b9d949c99092673ea0285be61e29e5e8cd5be5acb94aec
pdf-font-stream PDF embedded font (sfnt) at offset 0x5FA9 5408 bytes
font_01_sfnt_off00007204.bin
58fe1a8b3adbd325dd2b832d7f7946da251749df6713a683c8470644578832a4
pdf-font-stream PDF embedded font (sfnt) at offset 0x7204 10576 bytes
font_02_sfnt_off00009632.bin
ce90dcb8f80a691a226d66d7b9fb40db13b52946125f6d312f8860abae454107
pdf-font-stream PDF embedded font (sfnt) at offset 0x9632 16084 bytes