PDF malware analysis — malicious · 42982ed6d0e038df

MALICIOUS

PDF

51.2 KB Created: 2020-07-26 17:59:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 3cf63b6599c1765990318dd90f159d79 SHA-1: 833a7670390a9b4c4bc2d421469a8b3533148dd5 SHA-256: 42982ed6d0e038dfb3ef81b1d69ae38fda54f4ac6ff7b0cf9b2107125e69ed4b

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, which is further supported by a PDF link farm heuristic. The document body, though heavily obfuscated, appears to reference 'advanced systemcare 12 crack free', indicating a lure for cracked software. The presence of a password-protected archive lure heuristic suggests the PDF is a step in a multi-stage infection chain.

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.
Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE

Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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.cc/pify?keyword=advanced+systemcare+12+crack+free
- http://files.bonedesigns.com/uploads/1/3/2/8/132815807/xujopizikudoz.pdf
- http://files.thirdcinemaproductions.com/uploads/1/3/1/3/131379749/sonazez.pdf
- http://files.christopherround.com/uploads/1/3/1/1/131164159/d29c4efb0aebd46.pdf
- http://files.marleyforch.com/uploads/1/3/0/8/130874213/bigefovunivipon_zovokod_gulej_lolabibileveve.pdf
- http://files.ramyaravisankar.com/uploads/1/3/1/4/131406780/f0d347d6acebbc.pdf
- https://cdn.shopify.com/s/files/1/0430/2045/1997/files/43349713983.pdf
- https://cdn.shopify.com/s/files/1/0428/1909/2647/files/75565873871.pdf
- https://cdn.shopify.com/s/files/1/0431/5525/9546/files/97650418610.pdf
- https://cdn.shopify.com/s/files/1/0428/4071/9516/files/81754961990.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/19252536586.pdf
- https://cdn.shopify.com/s/files/1/0429/9577/7699/files/banoka.pdf
- https://cdn.shopify.com/s/files/1/0433/7709/8910/files/gazur.pdf
- https://cdn.shopify.com/s/files/1/0439/1940/9320/files/kaxoj.pdf
- https://cdn.shopify.com/s/files/1/0432/8429/9936/files/96306380255.pdf
- https://cdn.shopify.com/s/files/1/0433/5638/9528/files/luzerixoji.pdf
- https://cdn.shopify.com/s/files/1/0430/5308/8921/files/75922963500.pdf
- https://cdn.shopify.com/s/files/1/0430/7881/1810/files/lekajesero.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.

Filename	Kind	Source	Size
`font_00_sfnt_off00008c69.bin` `369bdd90c3f3fe8cdf523bdbf8b94b89888d6d9bb7587ebfd01629649cfcd819`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8C69	5164 bytes
`font_01_sfnt_off00009de8.bin` `39cb679d9707a36cf42ffe67e2e479e8d0e705689c2fc8a3c7c4602c66ed5d82`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9DE8	9856 bytes

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