PDF malware analysis — malicious · 28b661aa302a8a4f

MALICIOUS

PDF

64.0 KB Created: 2021-01-24 00:49:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12

MD5: fe6d9bf3e3d6710cbeb3391514984b25 SHA-1: fa1ee12c0fff3452b4e953bae2d3d7847f10a352 SHA-256: 28b661aa302a8a4f805c32ac9877030584477a88a0724530b0278ac58c218b39

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains a significant number of external links, identified as a PDF link farm, suggesting an attempt to direct users to various potentially malicious or deceptive websites. The presence of a URL pointing to 'jottigo.ru' with a 'cheat apk' query further indicates a lure for potentially unwanted software. ClamAV and ML classifiers also flagged this PDF as malicious, reinforcing the assessment of a phishing or malware distribution attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.8600

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://jottigo.ru/123?utm_term=realm+defense+cheat+apk PDF link annotation
- https://subogepaweb.weebly.com/uploads/1/3/2/3/132302814/7891241.pdfIn PDF document text
- https://cdn.sqhk.co/jekurona/FhcEChe/high_school_girl_simulator_virtual_life_game_3d.pdfIn PDF document text
- https://site-1168272.mozfiles.com/files/1168272/rarumekagijediner.pdfIn PDF document text
- https://site-1166625.mozfiles.com/files/1166625/vetax.pdfIn PDF document text
- https://muzufuwuvul.weebly.com/uploads/1/3/2/3/132302955/gutumoxejufule-tavaduxapetiz-burofo.pdfIn PDF document text
- https://nopubogap.weebly.com/uploads/1/3/4/6/134667077/5504726.pdfIn PDF document text
- https://xewixubigikuj.weebly.com/uploads/1/3/4/8/134892453/178757.pdfIn PDF document text
- https://site-1171615.mozfiles.com/files/1171615/ladspa_plugins_audacity_free.pdfIn PDF document text
- https://cdn.sqhk.co/zovitamojim/jcNm0jc/89297240515.pdfIn PDF document text
- https://xiwabuba.weebly.com/uploads/1/3/0/8/130813639/4956735.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/fuvidokibet/switch_games_while_playing.pdfIn PDF document text
- https://s3.amazonaws.com/vunizi/6579599906.pdfIn PDF document text
- https://s3.amazonaws.com/sosupejuxofedo/feroxitofowuwuv.pdfIn PDF document text
- https://s3.amazonaws.com/sinadi/apush_chapter_35_review_answers.pdfIn PDF document text
- https://s3.amazonaws.com/remufuzu/dijafiwidexun.pdfIn PDF document text
- https://s3.amazonaws.com/jinabom/21334021738.pdfIn PDF document text
- https://s3.amazonaws.com/sojaxub/article_writing_format_cbse_class_9_2019.pdfIn PDF document text
- https://s3.amazonaws.com/liluvad/bestandsaufnahme_gebude_protokoll.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_off0000dbf1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDBF1	5000 bytes
SHA-256: `9b715c492f920df6d959af9731c9e1b3fe8e93122ce55c7aa5ce4a3be216e99a`

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