Malicious PDF — malware analysis report

Static analysis result for SHA-256 8db73ccf503768a5…

MALICIOUS

PDF

68.0 KB Created: 2021-06-02 21:08:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 34c908fc5cfe136cf5bcdfe237eb0a3c SHA-1: 2e027df4480a02f922ac2152e6a0156e85a80dbe SHA-256: 8db73ccf503768a5859e3f44ffe9c82056a5721091de0edea0f39a3024d729cb
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an embedded URI pointing to 'allytemp.ru', which is likely a phishing or malware distribution site. The document body, though heavily obfuscated, appears to be related to search results, reinforcing the phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://allytemp.ru/pbw?utm_term=what+are+output+devices+explain+with+examples
    • https://cdn-cms.f-static.net/uploads/4449410/normal_603f416c16f50.pdf
    • https://nusavudusegi.weebly.com/uploads/1/3/4/4/134444144/5212125.pdf
    • https://gesunewa.weebly.com/uploads/1/3/1/4/131438127/kejixa_gutudate_kukevig.pdf
    • https://vilewufatavak.weebly.com/uploads/1/3/4/5/134585542/zokarofom_lumawopug_jijeletixove.pdf
    • https://cdn-cms.f-static.net/uploads/4464052/normal_602d946e49703.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/a7e1c4ee-5aa5-4f87-8a5a-baab1632754a/calculus_of_variations_with_constraints.pdf
    • http://sikovifif.pbworks.com/w/file/fetch/144459378/xelodusogadututefadojapup.pdf
    • https://uploads.strikinglycdn.com/files/24cfbd7f-af1e-4c9a-b7d1-a9c71df310ca/simple_interest_and_compound_interest_problems_and_solutions_in_tamil.pdf
    • http://vimadutukad.pbworks.com/f/jarorabodamumemitotoka.pdf
    • http://xalomuzavege.pbworks.com/w/file/fetch/144442515/lavobifubomasidalesufeji.pdf
    • http://supatibu.pbworks.com/w/file/fetch/144428961/vurituxegujifegitubifu.pdf
    • http://javefanudosa.pbworks.com/f/how_to_play_scotland_yard_beginners_version.pdf
    • https://uploads.strikinglycdn.com/files/42b4e829-69e5-4d25-8b5c-5abbaca07869/schlage_camelot_encode.pdf
    • 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_off0000cf66.bin
9f4d964d910238f63ec781c5105a6f1ed2693063506c8a65bf63610617dbeb6b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCF66 5548 bytes
font_01_sfnt_off0000e238.bin
524f67dbcb2fa4a48c00bdf382d191928dd099d40e7b5e623b69027a9699e2c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE238 9632 bytes

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