PDF malware analysis — malicious · 44768d3f04c9fe5d

MALICIOUS

PDF

33.7 KB Created: 2020-08-31 02:32:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 84656c72866ff53cef1c67bb8423507b SHA-1: 1ca64cbf085c9d35181bf3026ac4a639729e1da9 SHA-256: 44768d3f04c9fe5d8d9d3fa54f03e81c1b5290097bc826d78d81b79da2223f8a

120 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF file contains a high number of embedded links, with one critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains the URL that triggered the malicious redirector heuristic. This suggests the document's primary purpose is to redirect users to malicious content, likely for phishing or malware delivery.

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.me/wix?keyword=gsa+authorized+negotiator+letter+template
- https://static.usrfiles.com/ugd/2e16aa_06c08ab6d58543ecb586d529e65e0f57.pdf
- https://static.usrfiles.com/ugd/77941b_25b495eda75142dc9933c07906d35e50.pdf
- https://static.usrfiles.com/ugd/d902bb_192af7cb83464bf49f52e7b9581b6932.pdf
- https://static.usrfiles.com/ugd/1e32c2_7ebe840b2c2a4ef69212c673bf83e264.pdf
- https://static.usrfiles.com/ugd/83b1b3_e050f8cf701e4d41850dac61a759262a.pdf
- https://cdn.shopify.com/s/files/1/0430/2041/9226/files/bulenijeperelux.pdf
- https://cdn.shopify.com/s/files/1/0434/0659/0106/files/63652829494.pdf
- https://cdn.shopify.com/s/files/1/0434/6026/4096/files/business_english_cambridge_book.pdf
- https://cdn.shopify.com/s/files/1/0428/6971/9196/files/jasolipefanu.pdf
- https://cdn.shopify.com/s/files/1/0435/2281/8200/files/38885245788.pdf
- https://cdn.shopify.com/s/files/1/0432/5693/8646/files/jopozazusir.pdf
- https://cdn.shopify.com/s/files/1/0440/6178/6262/files/airtel_dth_new_plans_2020_list_price.pdf
- https://cdn.shopify.com/s/files/1/0440/1935/1710/files/fotenozekir.pdf
- https://static.usrfiles.com/ugd/9a242c_34951b64599f496ebaf5ad0fce6767f9.pdf
- https://static.usrfiles.com/ugd/764aaa_44bd491aedf3411dacc9108445000c81.pdf
- https://static.usrfiles.com/ugd/b5472a_88399cdb5ae14b5f9652ef7e888b824b.pdf
- https://static.usrfiles.com/ugd/8a419d_25f318b0d95c4e28922ea5e719d216a7.pdf
- https://static.usrfiles.com/ugd/b4a829_f2008cbdddd34b249096da16a6a4b186.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_off000048ff.bin` `5f5723a7fd0c5ca6d9a93ffa2c4fa54ed3ab3233f30f7ec56b6b61b8ba5f5324`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x48FF	5456 bytes
`font_01_sfnt_off00005b6f.bin` `8bf3b293947af76660e83630410247060852ce1b7c1c6076e06e4efdc30a1c9e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5B6F	8780 bytes

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