PDF malware analysis — malicious · 244b367807ebfa4f

MALICIOUS

PDF

53.3 KB Created: 2020-08-20 03:29:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 4ec195874fcedd808eb6551f65040fdb SHA-1: cb6a861882a194ac97c306310c76dcff1992d4a6 SHA-256: 244b367807ebfa4f0e153dcfcfadccb8361f692b82603ecb02e9657c4b68b1a6

128 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains embedded links that lead to a known malicious redirector, disguised as a promissory note template. The heuristic firings indicate a malicious redirector and a link farm, suggesting a phishing or scam attempt. The document body, though partially corrupted, contains keywords related to financial documents and the malicious URL, reinforcing the lure.

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.
Fake invoice / payment lure low SE_INVOICE_LURE

Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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=promissory+note+to+pay+off+debt+template
- http://files.rnshomerenovations.com/uploads/1/3/0/7/130776110/vudiser.pdf
- http://widuxenu.bizcontrol.net/uploads/1/3/1/4/131483025/dujisudotusixo.pdf
- http://files.lydiaw.com/uploads/1/3/2/7/132710765/mebevo.pdf
- https://cdn.shopify.com/s/files/1/0429/6556/5589/files/degifuwad.pdf
- https://cdn.shopify.com/s/files/1/0432/4261/9035/files/xununudivaxosada.pdf
- https://cdn.shopify.com/s/files/1/0431/0935/1575/files/human_anatomy_atlas.pdf
- https://cdn.shopify.com/s/files/1/0435/5158/8507/files/forms_space_and_order.pdf
- https://cdn.shopify.com/s/files/1/0433/2906/1032/files/best_website_to_marathi_movies_free.pdf
- https://cdn.shopify.com/s/files/1/0440/0755/5222/files/nolag.pdf
- https://cdn.shopify.com/s/files/1/0430/8575/8628/files/74592749294.pdf
- https://cdn.shopify.com/s/files/1/0436/7260/0729/files/xitagusaledikekowisipag.pdf
- https://cdn.shopify.com/s/files/1/0430/7494/5184/files/80718861549.pdf
- https://cdn.shopify.com/s/files/1/0433/7850/7934/files/26383604461.pdf
- https://cdn.shopify.com/s/files/1/0430/1350/5185/files/rebukikedimoj.pdf
- https://cdn.shopify.com/s/files/1/0433/9063/2101/files/nomigafosadazopadopawinof.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.

Filename	Kind	Source	Size
`font_00_sfnt_off000083fc.bin` `c261bedc05d838da1978f1d0b1fde1aa91dc50f71e72d523e2274c57f5ef7a7d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x83FC	5220 bytes
`font_01_sfnt_off00009596.bin` `5e7bb769a8c817d35eec776dbfb638761aa22830109ee6da1fdedbc252afff54`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9596	10548 bytes
`font_02_sfnt_off0000b9ae.bin` `05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB9AE	4324 bytes

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