Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf8ff89e7208efa7…

MALICIOUS

PDF

44.5 KB Created: 2020-08-01 11:32:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 859a37d3a5eaf3760933fcc16ff94087 SHA-1: 7f2115aade7d04ac4eb690238c2a57d609f7db4d SHA-256: cf8ff89e7208efa790ee75f215fff84d251e78d1552127f1f22711e5f79496d7
120 Risk Score

Malware Insights

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

The PDF contains a link farm designed to direct users to external sites, with one prominent URL identified as a malicious redirector. The document body, though partially corrupted, includes the text 'How to make a webhook discord' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of numerous external links, many hosted on Shopify, indicates a link farm strategy to potentially improve search engine ranking or distribute payloads.

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.ru/pify?keyword=how+to+make+a+webhook+discord
    • http://files.ktharrington.com/uploads/1/3/2/7/132712006/4914242.pdf
    • http://files.deparel.eu/uploads/1/3/1/4/131437984/c228d956e.pdf
    • http://files.barbarafoxartstudio.com/uploads/1/3/0/8/130814735/beweburukep.pdf
    • http://files.leonschainsawpartsandrepair.com/uploads/1/3/2/6/132696558/fc1355ae9111.pdf
    • http://files.sakuramassagesantafe.com/uploads/1/3/0/7/130738722/sirowup.pdf
    • https://cdn.shopify.com/s/files/1/0432/7335/5419/files/lurapeteluwugajusogulixa.pdf
    • https://cdn.shopify.com/s/files/1/0432/8924/7894/files/zopetifuwes.pdf
    • https://cdn.shopify.com/s/files/1/0427/5906/1670/files/12769782446.pdf
    • https://cdn.shopify.com/s/files/1/0429/1022/0447/files/tikowolidefebizimogirun.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/loxutiwijadewafulon.pdf
    • https://cdn.shopify.com/s/files/1/0438/5538/0630/files/nekeluzev.pdf
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/movobefaziri.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gifizazuxapi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jedufejaselikaruratemop.pdf
    • https://cdn.shopify.com/s/files/1/0435/1361/0392/files/23083780136.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/
    • https://cdn.shopify.com/s/fi

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006127.bin
48d5c3df4e8c6880c2066f2467a7c1f6ba2e2be901b7d297bafa1d927bcad37f
pdf-font-stream PDF embedded font (sfnt) at offset 0x6127 5084 bytes
font_01_sfnt_off0000727b.bin
c65cd22f3d97cf774025971d86706727b254165034c07270f477ebd0dcec368c
pdf-font-stream PDF embedded font (sfnt) at offset 0x727B 10556 bytes
font_02_sfnt_off00009695.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c
pdf-font-stream PDF embedded font (sfnt) at offset 0x9695 4324 bytes