PDF malware analysis — malicious · 27e38e91dfec29fd

MALICIOUS

PDF

74.2 KB Created: 2021-05-21 12:15:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 3005d63c00f9591811b563ebc78da0d1 SHA-1: fc2e732bc7ae8c6b1c8d199739c1080037172d20 SHA-256: 27e38e91dfec29fdc8f71deaeeeb0212de1c63e655e36745a60cfbab3ae465d0

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

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

Machine Learning

Nyx PDF Classifier malicious score 0.8947

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://vilenefex.ru/strik?utm_term=movimiento+rectil%25C3%25ADneo+uniforme+acelerado+ejemplos+de+la+vida+cotidiana PDF link annotation
- https://cdn-cms.f-static.net/uploads/4490256/normal_603eeb964c3fe.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4467274/normal_5fcef34a8c6a6.pdfIn PDF document text
- https://mitumeme.weebly.com/uploads/1/3/4/8/134879381/rapamedivoxifa-tinutozomugop-fajuriga-duxapebo.pdfIn PDF document text
- https://resezavurafufok.weebly.com/uploads/1/3/1/4/131407395/kewunudewuzixor_juxono_kapagideribejo.pdfIn PDF document text
- https://kixujededewi.weebly.com/uploads/1/3/0/8/130814479/e51a5.pdfIn PDF document text
- https://puzomukasudugun.weebly.com/uploads/1/3/4/8/134865935/1a1e310494d3812.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4403140/normal_60562d37f1826.pdfIn PDF document text
- https://valezofijamope.weebly.com/uploads/1/3/4/4/134445284/f403b4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4450356/normal_602874b669854.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/kijelopazekune/dreams_fleetwood_mac_chords.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c4a20010-06b4-46b0-a453-2f6199bed671/75154505440.pdfIn PDF document text
- https://s3.amazonaws.com/pogolo/94092416819.pdfIn PDF document text
- https://s3.amazonaws.com/nawuvud/my_rca_tablet_wont_turn_on.pdfIn PDF document text
- https://s3.amazonaws.com/bidurudilidujug/gunbound_high_angle_guide.pdfIn PDF document text
- https://s3.amazonaws.com/safago/nufobereg.pdfIn PDF document text
- https://s3.amazonaws.com/midizaxopazeji/74318989032.pdfIn PDF document text
- https://s3.amazonaws.com/voxazedisula/56718301789.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9c5bc77d-573e-47c1-a1ef-80ae0db82f17/lodizunikuvodijifi.pdfIn PDF document text
- https://s3.amazonaws.com/jutenojamega/windows_10_cheat_engine.pdfIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000fcab.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFCAB	5376 bytes
SHA-256: `555116398c25f5b67bc2f3149c4dcbf44bc06a6b00a27753b08dd1aa7c77d8ef`

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