Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0b489f407fac137…

MALICIOUS

PDF

76.4 KB Created: 2021-03-18 09:56:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 68db310a34375f903e5d68ba679b0f0e SHA-1: f5350d657f55e12153e6e816448be71056449841 SHA-256: e0b489f407fac1372c9c80832fcc9f8475c47ee426ed0bc8a5efd5ecf3080297
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, with a specific detection name indicating it is a phishing trojan. An embedded URL, 'https://jottigo.ru/123?utm_term=mobile+movies++sites+bollywood', is present in the document's metadata and heuristics, suggesting it's the primary lure. The document body is heavily obfuscated, preventing a clear understanding of its direct content, but the presence of the URL and the malware detection strongly indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://jottigo.ru/123?utm_term=mobile+movies++sites+bollywood
    • https://fakilopatezi.weebly.com/uploads/1/3/1/6/131606638/61b69c1621.pdf
    • https://cdn-cms.f-static.net/uploads/4448535/normal_601995f564167.pdf
    • https://paleforekirito.weebly.com/uploads/1/3/4/5/134579508/2228553.pdf
    • https://gisogademumes.weebly.com/uploads/1/3/1/3/131379615/mobemuzovitiw.pdf
    • https://static.s123-cdn-static.com/uploads/4482631/normal_5fde84ae1f1ce.pdf
    • https://boxotegiperofog.weebly.com/uploads/1/3/1/3/131398000/2930382.pdf
    • https://cdn-cms.f-static.net/uploads/4494669/normal_60407ac93ad8f.pdf
    • https://static.s123-cdn-static.com/uploads/4448121/normal_5fdd40931b0dc.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://gefuxexo.epizy.com/laughing_baby_video_clip_free.pdf
    • https://s3.amazonaws.com/lovomijelun/black_and_decker_hedge_trimmer_replacement_power_cord.pdf
    • https://12a3aa02-022d-4218-8efb-90aa4388683d.filesusr.com/ugd/6dfd9b_c48650227eaf4ee8a22f3582ff3ea649.pdf?index=true
    • https://s3.amazonaws.com/kevava/beautiful_nubia_album_free.pdf
    • http://sikirubuguje.epizy.com/mulabububoniba.pdf
    • https://cb38ef3f-1f2c-4622-8962-dca261660167.filesusr.com/ugd/3ae201_d273cd4ec69546f7807d9037f626f0ac.pdf?index=true
    • https://b89c0965-50b5-483f-b67e-52f573158f4f.filesusr.com/ugd/1e222e_7fbd6bebdd764110a3e284bd839acf3a.pdf?index=true
    • https://s3.amazonaws.com/jusagi/algebra_1_practice_final_exam_with_answer_key.pdf
    • https://s3.amazonaws.com/divikufifir/sp_flash_tool_s_brom__da_fail_0x7d4.pdf
    • http://pokuzanu.epizy.com/10696780951.pdf
    • https://s3.amazonaws.com/numegubowalonan/483236897.pdf
    • https://eecb1da5-82b7-48ef-90e5-6a20895c07e7.filesusr.com/ugd/88a84f_4dbb36c1710046a29514ed894c9bd5c5.pdf?index=true
    • https://3eeb541e-75be-486c-a732-b1e279b2a932.filesusr.com/ugd/eaab1c_7628411ef6b543fb91ac0df33c7f683a.pdf?index=true
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ebc6.bin
f0b906b4a70b1731dac590e7929e8842056eaec5175603aadedfa809cd996159		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEBC6 5064 bytes
font_01_sfnt_off0000fd15.bin
ffe289f1a26f8b60f08e0db959ff02e899f1a957a7d01addc1ce915368717c54		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFD15 11304 bytes

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