PDF malware analysis — malicious · 217c4186bd11497d

MALICIOUS

PDF

44.3 KB Created: 2020-08-31 20:40:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 815e304172b1466e3d419f15b1cedd2c SHA-1: 6abf8cc2c3eae84f454db77255bf38c681010b4c SHA-256: 217c4186bd11497d8571928949e0125d8aa11ffaa9d169a8039107a0dc0b4268

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/wix?keyword=a+twist+in+my+story+album'. This URL is presented within the document body, disguised as an album title, to entice users to click. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to static.usrfiles.com. No scripts were extracted, and the document body is heavily obfuscated, but the primary malicious intent appears to be redirection to a harmful site.

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.com/wix?keyword=a+twist+in+my+story+album
- https://static.usrfiles.com/ugd/1a89c8_8cb060a259a9414584c4875a9ce1f376.pdf
- https://static.usrfiles.com/ugd/b8c837_ca5af8255dab4f77b418bf4e95e8d011.pdf
- https://static.usrfiles.com/ugd/b8c837_1c47477d0a47479489360f4e2d25dbbc.pdf
- https://static.usrfiles.com/ugd/b8c837_363a21300852470bb82d5ec650e2785c.pdf
- https://static.usrfiles.com/ugd/0dd040_e97dfb7932a242a2b9b358bb2f166a04.pdf
- https://cdn.shopify.com/s/files/1/0436/4979/4213/files/44549278989.pdf
- https://cdn.shopify.com/s/files/1/0432/9462/1862/files/bharat_gas_mobile_app.pdf
- https://static.usrfiles.com/ugd/aef5b7_ce617c892eb6484295e37a70285b5173.pdf
- https://static.usrfiles.com/ugd/5b5da7_895f45a025b24e5fa646ae53f08a8d9c.pdf
- https://static.usrfiles.com/ugd/b8c837_de3c9db0f874497da0122ed0da29be62.pdf
- https://static.usrfiles.com/ugd/b8c837_001ca50aefdb4b19b522b7c6440b69ce.pdf
- https://static.usrfiles.com/ugd/e32576_0a38562a0b7746bf964798d10fc1c55e.pdf
- https://cdn.shopify.com/s/files/1/0430/7540/3936/files/bewifobesinesis.pdf
- https://cdn.shopify.com/s/files/1/0435/8393/0527/files/application_of_derivatives_word_problems_with_solutions.pdf
- https://cdn.shopify.com/s/files/1/0432/3118/3016/files/basketball_rules_and_fouls.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_off00006215.bin` `a02b414ceeacce05cf94fab3c7036fb2ed5c56b822a06de8af5fc844e3e6a826`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6215	4920 bytes
`font_01_sfnt_off000072b2.bin` `7118cdf2bbeb73fe2a2b8e15ccc30d64d9eb9958d7f5a0d935efd63193d97ffc`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x72B2	10312 bytes
`font_02_sfnt_off000095ee.bin` `b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x95EE	4324 bytes

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