PDF malware analysis — malicious · 41344f8817a65380

MALICIOUS

PDF

42.2 KB Created: 2020-08-08 22:54:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 05fa787c2c6b72756ead8d4c17341939 SHA-1: 897f07e4d0a4ca9c7ca77dc3a6b4204977371854 SHA-256: 41344f8817a65380200a9dc839d1f1f769ababfca9e2fdc1d58bd0732bdbf162

150 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, pointing to 'https://ttraff.cc/pify?keyword=ampas+tebu+adalah+pdf'. Additionally, it exhibits a PDF link farm behavior, with numerous links to external PDFs, many hosted on cdn.shopify.com. The ML classifier also strongly flagged this PDF as malicious. The document body contains garbled text but includes the malicious URL and several other PDF links, suggesting a lure to download further malicious content or redirect to malicious sites.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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.cc/pify?keyword=ampas+tebu+adalah+pdf
- http://gobofuki.smmssilverteam.org/uploads/1/3/0/7/130776485/lilufudusa_momofixu_fugojede.pdf
- http://files.ivanbavcevic.com/uploads/1/3/2/6/132696512/7ea1fd4b4.pdf
- http://files.yarmouthportlibrary.org/uploads/1/3/0/7/130776602/wizizomedib-sugodafafu-befakaragev-dikomapevomek.pdf
- http://files.jazzwater.com/uploads/1/3/1/8/131856703/puwukezo.pdf
- https://cdn.shopify.com/s/files/1/0432/6955/4329/files/saranono.pdf
- https://cdn.shopify.com/s/files/1/0430/2117/2897/files/37282272007.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/12509012650.pdf
- https://cdn.shopify.com/s/files/1/0435/4818/0634/files/bruges_attractions_map.pdf
- https://cdn.shopify.com/s/files/1/0437/0720/3739/files/87815177030.pdf
- https://cdn.shopify.com/s/files/1/0431/6761/3087/files/suwotajiseligikopumuza.pdf
- https://cdn.shopify.com/s/files/1/0431/6345/1549/files/.pdf
- https://cdn.shopify.com/s/files/1/0432/0962/1664/files/78545322345.pdf
- https://cdn.shopify.com/s/files/1/0432/6568/7717/files/93984257801.pdf
- https://cdn.shopify.com/s/files/1/0428/4717/4812/files/xobadel.pdf
- https://cdn.shopify.com/s/files/1/0444/4097/7574/files/afrikaanse_gedigte.pdf
- https://cdn.shopify.com/s/files/1/0433/3692/5342/files/gozasugonotokinu.pdf
- https://cdn.shopify.com/s/files/1/0437/0405/8010/files/pdf_sociologia_juridica.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_off000063d5.bin` `791e79f2a1d2693ddbecdc3c4838b6e85c04835147e7a039b64b175994da65c8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x63D5	5312 bytes
`font_01_sfnt_off000075b4.bin` `22341c22575457df886344ccccd85de99f10232ea410cc173c27f8cdbeb198ee`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x75B4	11580 bytes

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