PDF malware analysis — malicious · a8d54970d7e6e80f

MALICIOUS

PDF

89.4 KB Created: 2021-01-08 07:32:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14

MD5: dcfeee4096d3c5eacd3f0b07d133708d SHA-1: 69414d1338dd14427845e9ee700d0214aafdc440 SHA-256: a8d54970d7e6e80f0658ee6b095f1280ef66fce0c30259d5b9debd135bd5c166

122 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF document that contains a critical heuristic firing for a malicious redirector link. The embedded URL points to 'traffine.ru', which is known for malicious redirection. The ClamAV detection further confirms its malicious nature, identifying it as 'Pdf.Phishing.Trojan'. No scripts were extracted, but the presence of a malicious URL strongly suggests a phishing or credential harvesting attempt.

Machine Learning

Nyx PDF Classifier suspicious score 0.2521

Heuristics 3

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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.
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://traffine.ru/aws?utm_term=akkad+bakkad+bombay+bo+song In PDF document text
- https://cdn-cms.f-static.net/uploads/4492871/normal_5fbed6ba583ce.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4372682/normal_5fe83476bccb4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4417997/normal_5fd7bcca5745e.pdfIn PDF document text
- https://cdn.sqhk.co/kejofuvata/HAaijji/zombie_city_hd_apk_hack.pdfIn PDF document text
- https://cdn.sqhk.co/fujonexa/iidjijh/turbo_driving_racing_3d_mod_apk_free_download.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4496816/normal_5fbc993692dd8.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4404310/normal_5f981f179fe81.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/aa841722-df8c-4539-bf58-98bfa703dcb5/nuradikuxomexuzu.pdfIn PDF document text
- https://s3.amazonaws.com/kofabube/innova_3100_obd2_code_reader_manual.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a2aef712-f936-45aa-bd69-783d4490fa6a/pezitolix.pdfIn PDF document text
- https://s3.amazonaws.com/buponuwebi/wubodiwiwaxenut.pdfIn PDF document text
- https://s3.amazonaws.com/jofunozuzof/66595420738.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5e26f0ec-9120-4c81-9755-5034fc371a23/what_does_a_blue_heart_mean_from_a_girl.pdfIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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
`stream_004_off000135cc.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x135CC	25388 bytes
SHA-256: `e95d240e959d100b6b297e7aa72b488b0ec1cfefccba39147bc56abf14a54d14`
`font_00_sfnt_off0000fd62.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFD62	5312 bytes
SHA-256: `72dd40bec8c4333c0860e42d06226f30ac3f502bab9069f6629e8514650e8af4`
`font_01_sfnt_off00010f72.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10F72	11264 bytes
SHA-256: `5c43f421445be4adb1e2a6acac6317d4ba865cecc15ba1c49bb1503a54c02740`

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