PDF malware analysis — malicious · 2ef57546167a8928

MALICIOUS

PDF

80.3 KB Created: 2020-08-22 10:03:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: d58c36dd4471887a98593ef07b39c379 SHA-1: f1f6a1d06c0556ebc44c0354f8a66ec5110af7df SHA-256: 2ef57546167a892868b562e2213603feb4a37fc48caf11e4f4d3135a0190b8bf

128 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF file contains heuristics indicating it is a malicious redirector and part of a link farm, specifically using an invoice/payment lure. The document body, though heavily obfuscated, contains a URL that is also flagged as a malicious redirector. This suggests the primary goal is to trick the user into clicking the link to visit the malicious site.

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=employment+guarantor+form+doc
- http://files.lottglobal.com/uploads/1/3/1/3/131380043/vakotab-koteluta.pdf
- https://cdn.shopify.com/s/files/1/0438/0894/8386/files/basketball_game_information.pdf
- https://cdn.shopify.com/s/files/1/0437/9800/3874/files/popujizozimubefipido.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/3785448733.pdf
- https://cdn.shopify.com/s/files/1/0431/5666/8573/files/94892334588.pdf
- https://cdn.shopify.com/s/files/1/0434/7405/9430/files/godogulorogakarijikeg.pdf
- https://cdn.shopify.com/s/files/1/0429/1634/8071/files/journal_articles_on_depression.pdf
- https://cdn.shopify.com/s/files/1/0432/2436/7262/files/82683603989.pdf
- https://cdn.shopify.com/s/files/1/0429/2401/5783/files/african_slavery_in_america.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/92588710477.pdf
- https://cdn.shopify.com/s/files/1/0437/6500/6494/files/antibiotic_sensitivity_test_principle_and_procedure.pdf
- https://cdn.shopify.com/s/files/1/0434/1946/7932/files/bairnsdale_cinema_movie_guide.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e5a3.bin` `85b692c1c636aed9ab1240d2a7361179fdd6c0849396a06064984f922e967b4f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE5A3	2828 bytes
`font_01_sfnt_off0000ef9d.bin` `8b7817339a31f68a1d63809c2995bd27bab784bfdca09d095d2eccfc94ccca36`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEF9D	5192 bytes
`font_02_sfnt_off00010137.bin` `09552f6377de67f760c54afdf0ddf5a01cddd4ed4f9383bc40e5f0d9ba76acba`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10137	10168 bytes
`font_03_sfnt_off000123c0.bin` `b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x123C0	4324 bytes

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