Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c7c80159a5deaf0…

MALICIOUS

PDF

77.3 KB Created: 2021-01-30 21:13:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: d3034e199f96b61c8749ad4953ea1649 SHA-1: 5575551038504806cf43fd3db8b4f198918cd225 SHA-256: 2c7c80159a5deaf0f79489002fa8ebfbbe40b82be0cd4447a26b806843b603a6
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, with critical heuristics identifying it as a malicious redirector and a link farm. The primary malicious URL, 'https://gettraff.ru/wb?keyword=sprinkles%20ice%20cream%20shoppe%20menu', is flagged as a redirector. Additionally, the PDF is detected by ClamAV as 'Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0', indicating a phishing and trojan payload. The ML classifier also strongly flags this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://gettraff.ru/wb?keyword=sprinkles%20ice%20cream%20shoppe%20menu In PDF document text
    • http://umkatrade.ru/emergency_preparedness_response_course_post_test_answersriaqv.pdfIn PDF document text
    • https://tiwuvaxitunux.weebly.com/uploads/1/3/0/8/130874175/divugefage.pdfIn PDF document text
    • http://scriptbook.xyz/the_royal_affairs_mod_apkiuvo6.pdfIn PDF document text
    • http://9gusevshop.space/dreamed_or_dreamt_oxford501yv.pdfIn PDF document text
    • http://instapodarok365.site/download_game_cooking_tycoon_hacklzryv.pdfIn PDF document text
    • https://zukikopan.weebly.com/uploads/1/3/0/7/130775822/vamososot.pdfIn PDF document text
    • http://gbo.guru/american_football_house_urbanaar6ym.pdfIn PDF document text
    • https://xilarurizajefa.weebly.com/uploads/1/3/5/3/135347329/foligasabumosovu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418171/normal_5feb7704b71ae.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379384/normal_5ffc83c9c840e.pdfIn PDF document text
    • http://swast-group.website/wenosir77a7.pdfIn PDF document text
    • https://jezuvafu.weebly.com/uploads/1/3/5/3/135348480/sewebixipu-xalowavif-zamos.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/benubapopikaj/fusionner_2_avec_acrobat.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibebulosaxug/bojomov.pdfIn PDF document text
    • https://s3.amazonaws.com/mipizaju/67848517065.pdfIn PDF document text
    • https://s3.amazonaws.com/jivagajamav/aarum_kaanathe_lyrics.pdfIn PDF document text
    • https://s3.amazonaws.com/ninasivol/86499623792.pdfIn PDF document text
    • https://s3.amazonaws.com/pobixedele/estratificacion_de_riesgo_cardiovascular.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e39f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE39F 5140 bytes
SHA-256: 9536e12726d52f65302e0894c2657699ab70624f1074b6eea2401a978bc7e480
font_01_sfnt_off0000f4d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4D9 10916 bytes
SHA-256: 1d19ddea63d60179290cdc22a547c30bab8bb6a227e7fe79345e6f1ad3c192dd
font_02_sfnt_off000119ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x119FF 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

Open this report in the interactive analyzer, or submit your own file for analysis.