PDF malware analysis — malicious · 79cdd69dcb2e1e9e

MALICIOUS

PDF

49.3 KB Created: 2020-08-26 08:04:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 058e1e335f59d062997339c89ecda7a8 SHA-1: 9f005f35c1ee5415b32cc05452652276febe308c SHA-256: 79cdd69dcb2e1e9e1fe449ced13d199a0c12be14e475b0fd2600bd739f9823ac

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm and a specific malicious redirector URL, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains text related to 'Dell 2 in 1 13' and includes the malicious URL, reinforcing the lure. The heuristic firings confirm the presence of malicious redirector links and a link farm, strongly suggesting a malicious intent to redirect the user to a harmful site.

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.com/pify?keyword=dell+2+in+1+13
- http://files.aubrieadams.com/uploads/1/3/1/3/131379815/08ee0f82b40ac9.pdf
- http://fivifi.nancykasprzyk-colorado.com/uploads/1/3/1/8/131856516/f320a83ceb.pdf
- http://labebonar.called2lead.com/uploads/1/3/1/6/131606069/2ca1c9.pdf
- http://vagoju.alliesonthejourney.com/uploads/1/3/1/4/131407406/2ed34f397b.pdf
- http://zozib.dolsenkinders.com/uploads/1/3/0/8/130813453/abd1e.pdf
- https://cdn.shopify.com/s/files/1/0438/4073/3341/files/formal_letter_asking_for_information_sample.pdf
- https://cdn.shopify.com/s/files/1/0463/3542/6721/files/wapomubitukawanojumekatan.pdf
- https://cdn.shopify.com/s/files/1/0432/9583/4280/files/android_9_pkq1_name.pdf
- https://cdn.shopify.com/s/files/1/0433/7755/7660/files/tubidy._mobi_mp3_downloads.pdf
- https://cdn.shopify.com/s/files/1/0428/4655/2230/files/wepesisiranovepizu.pdf
- https://cdn.shopify.com/s/files/1/0440/0765/3526/files/najebelujubanivozukamof.pdf
- https://cdn.shopify.com/s/files/1/0435/0076/5336/files/54313748775.pdf
- https://cdn.shopify.com/s/files/1/0444/4468/0359/files/xedaxutimexigibozovagovi.pdf
- https://cdn.shopify.com/s/files/1/0434/3093/6733/files/wubazokuzegitetalukek.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000062c9.bin` `f784e31a9ee14c4ece22c91e5d9e1861b63ada5d35ccab3a574e15881b4b9fc9`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x62C9	4140 bytes
`font_01_sfnt_off000070d0.bin` `9f5c3d750566486c9cdffea4747b928ab39834474981cb93a5f7018dd225a723`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x70D0	10552 bytes
`font_02_sfnt_off0000950d.bin` `e93acd332f5893643511f4cefd38969ad5c744ad1b08842a788b6be7d277dd15`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x950D	16204 bytes
`font_03_sfnt_off0000aa3b.bin` `9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAA3B	4324 bytes

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