PDF malware analysis — malicious · 689220d9a256932a

MALICIOUS

PDF

39.9 KB Created: 2020-08-14 23:19:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: f415122b5ea28c460a51412005795d7b SHA-1: c60a191450e7ffbfc0fd43a49123705e41374c29 SHA-256: 689220d9a256932a6a9e0eef4e7f48d2222f8af5c708981c4a93546e450bbc3e

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, suggesting an attempt to lead the user to a malicious site. The document body and embedded URLs indicate a lure related to influencer marketing, likely to disguise the malicious intent. The presence of numerous external PDF links further supports a link-farming or redirection scheme.

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.cc/pify?keyword=sociabuzz+influencer+marketing+platform+agency+indonesia
- http://files.womenofcountrymusic.com/uploads/1/3/1/4/131408100/koxatu.pdf
- http://files.pg862.com/uploads/1/3/0/7/130776381/98a216745.pdf
- http://files.texassaddlefitter.com/uploads/1/3/1/4/131454733/figavavufupotapirex.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0431/7963/8942/files/22202374659.pdf
- https://cdn.shopify.com/s/files/1/0433/6582/6719/files/gapefonunejixajufa.pdf
- https://cdn.shopify.com/s/files/1/0428/8305/5782/files/47182893505.pdf
- https://cdn.shopify.com/s/files/1/0432/5661/0969/files/79907191503.pdf
- https://cdn.shopify.com/s/files/1/0430/2589/1479/files/jovuweti.pdf
- https://cdn.shopify.com/s/files/1/0431/6682/6656/files/gojurufafomizege.pdf
- https://cdn.shopify.com/s/files/1/0431/8239/1451/files/18759695404.pdf
- https://cdn.shopify.com/s/files/1/0435/8704/3496/files/2424929318.pdf
- https://cdn.shopify.com/s/files/1/0432/2865/9874/files/85219116530.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_off00005b37.bin` `d79bdbfa087eb31ae5f6002e03e3ed5f4aab790ce6f2a02f9fb570c2659b4791`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5B37	5936 bytes
`font_01_sfnt_off00006f5a.bin` `b46c789569051556b49cfa036cc64e62957ba6895ba473bd1e66e2e135fc2b26`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6F5A	10288 bytes

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