PDF malware analysis — malicious · 34cca01cb2acc165

MALICIOUS

PDF

47.5 KB Created: 2020-10-05 14:40:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25

MD5: bec9b80aa7502a6b054d97a1076171cc SHA-1: cc6f81a55bf230fd9f25e943b64ef77cce300cb4 SHA-256: 34cca01cb2acc165efc0b2bf1f8db4f40617af1c4f5d2c24602aeab0bbcfc812

152 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9970

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://ggtraff.ru/strik?keyword=cccam+info+ipk In PDF document text
- http://mumiw.aycreative.co/uploads/1/3/0/8/130814328/pebiboduxuz.pdfIn PDF document text
- http://fedakowu.bajasharkdiving.com/uploads/1/3/1/1/131164250/migejot.pdfIn PDF document text
- https://site-1036805.mozfiles.com/files/1036805/8456148372.pdfIn PDF document text
- https://site-1040032.mozfiles.com/files/1040032/29210945115.pdfIn PDF document text
- https://site-1037245.mozfiles.com/files/1037245/25344937857.pdfIn PDF document text
- https://site-1037204.mozfiles.com/files/1037204/98594537187.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/14a24e8e-0194-44e3-9492-80fc39162678/1506519817.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/257956d5-b9b2-44c0-bf04-ca7588a66408/46868427347.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/52268cef-b5b1-48fa-90ba-e82caf86ea2a/jowisasofakalixavojune.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/165a574b-2bf2-4528-9ff2-aad93012d0ae/23451215345.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0486/5464/7446/files/marshall_jcm_900_mkiii.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5509/5716/files/vozagasub.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1409/3986/files/what_is_reification_in_psychology.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0480/2664/8735/files/wcc_calendar_of_events.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2558/8639/files/315_mm_equals_to_how_many_inches.pdfIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000946f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x946F	4092 bytes
SHA-256: `ef12fb54f4b9eea6e466f6b3b423e8a654031d853300f2a957f066fb932f4144`
`font_01_sfnt_off0000a30c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA30C	4824 bytes
SHA-256: `118c5ccfa25ec2aca6c210f06069556fa6687163c2cc627fb311358e65423e07`

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