PDF malware analysis — malicious · 05194d0d8316091f

MALICIOUS

PDF

42.0 KB Created: 2020-09-12 01:24:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 7da437661854bdef558a5aa4e960369f SHA-1: f66325648f9391c40c4cf13075d1610664973cf1 SHA-256: 05194d0d8316091ffa7a0845dec3889b94ae1cd48807799284ec375bd9b1474d

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, with one identified as a malicious redirector. The document body, though partially corrupted, includes text related to a manual and the malicious URL, suggesting a lure to potentially malicious content. The presence of a malicious redirector and a link farm indicates an attempt to drive traffic to harmful sites.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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.
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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=honda+click+125i+2016+manual
- http://files.villas46a.org/uploads/1/3/1/8/131871740/b864304fb8c7.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/3ceeb9_b80d7b160e6f487095059266ac96485c.pdf
- https://static.usrfiles.com/ugd/9117e0_3ddb2757bf8f42c1baa76d34cedc8ee6.pdf
- https://static.usrfiles.com/ugd/64e449_20ec083db3c643e8816a617f2aa4326d.pdf
- https://static.usrfiles.com/ugd/6cf392_45499d7f132e43c7901992693846feb1.pdf
- https://static.usrfiles.com/ugd/fac845_5c313ed372154c59b41ac934df8f4d3f.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fixasitisajixumazurezeve.pdf
- https://cdn.shopify.com/s/files/1/0432/7319/1587/files/baasha_video_songs.pdf
- https://static.usrfiles.com/ugd/d51d36_9c749ff0ca62476b836fc78519b531b0.pdf
- https://static.usrfiles.com/ugd/b9801a_40eb11e3b971497cbd85bb75c641c3bc.pdf
- https://static.usrfiles.com/ugd/d5d855_68efc2c95fab4c6d84eec32dd665c6de.pdf
- https://static.usrfiles.com/ugd/cfbfd2_0ff776fd5f084544b2ca1b776b030382.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/
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000680b.bin` `ed997a577a4bbca4c67bc28fd79e370a7e06e8803443d231bdb148c65bf59487`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x680B	5440 bytes
`font_01_sfnt_off00007a81.bin` `1865c11c05b375a0ca006ab92fca169383a1cb946126758770672b52e15b2a97`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7A81	9708 bytes

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