PDF malware analysis — malicious · 84d87ab10b428175

MALICIOUS

PDF

68.9 KB Created: 2020-02-03 15:35:16 Authoring application: Scribus First seen: 2021-05-22

MD5: 625a717bcb71dd54cf6b25401f07146e SHA-1: 8c03a3f90bedbd958fdd9d6118c443f83ddaa7a1 SHA-256: 84d87ab10b42817542c2a6442d1036857f47c0ee351a903e743b7a12b1b09d3f

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains a lure related to debt collection, directing the user to a URL that appears to be part of a link farm. The presence of numerous external links and a high ML classifier score indicate malicious intent, likely for phishing or malware distribution. While no scripts were directly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to malicious content.

Machine Learning

Nyx PDF Classifier malicious score 0.7401

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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.
External URI info PDF_URI

PDF contains an external URL action
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://traffset.ru/aws?keyword=global+credit+and+collection+corp+chicago+il PDF link annotation
- https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/0cbd7f35736ab.pdfIn PDF document text
- https://vojumemij.weebly.com/uploads/1/3/4/4/134473557/e07b2f39.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366008/normal_5f87039c51ee8.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4414486/normal_5fa6c6de7af9b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4412394/normal_5f978a648ec21.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4403822/normal_5fa26b512facb.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4491725/normal_5fa9894292dfa.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366321/normal_5fa5f683a9d60.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/timafatafej/geviluwavizuwimuradum.pdfIn PDF document text
- https://s3.amazonaws.com/gizonukorad/53402705093.pdfIn PDF document text
- https://s3.amazonaws.com/jusuberu/41399981707.pdfIn PDF document text
- https://s3.amazonaws.com/digigitusuduk/25683072750.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000d0de.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD0DE	5328 bytes
SHA-256: `8a5b52f03acc123f69cd2f9ba1150d052bf9e663ba387ed3e1545f733e307a00`
`font_01_sfnt_off0000e2fd.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE2FD	10616 bytes
SHA-256: `b551579374af62b5ff3d5033838c4d604d0954da3a35ba066a40db6dead36e02`
`font_02_type1_off00010e7f.bin`	pdf-font-stream	PDF embedded font (type1) at offset 0x10E7F	74 bytes
SHA-256: `66e4520597a651f09ad8fe2af9ce002e2735d7ba5ff66d04fd92415068c6750b`

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