Malicious PDF — malware analysis report

Static analysis result for SHA-256 ece8808e3a3572ae…

MALICIOUS

PDF

78.7 KB Created: 2021-03-23 21:10:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 78e5054ab1709d8f0cf62541b8f03bed SHA-1: d6e93f6127f6d30f07ee8dd79a41905accba212b SHA-256: ece8808e3a3572ae22659a1e5e9ec5258c361bbc0226d841ff1041092aad173c
96 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. The embedded URL points to a domain that appears to be part of a phishing lure, referencing a 'Saudi Aramco IPO prospectus'. While no scripts were explicitly extracted, the PDF structure and heuristics suggest it's designed to trick users into visiting malicious links.

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://botokaw.ru/award?keyword=saudi+aramco+ipo+prospectus+pdf
    • https://static.s123-cdn-static.com/uploads/4494888/normal_60091558cf0f7.pdf
    • https://cdn.sqhk.co/larovejadeb/GidqgjL/bupixoxebodenokom.pdf
    • https://cdn-cms.f-static.net/uploads/4471484/normal_6049564d69476.pdf
    • http://wotamojami.22web.org/viwoxek.pdf
    • https://cdn.sqhk.co/niwonosorude/gdk4fyL/best_slot_games_win_real_money.pdf
    • https://static.s123-cdn-static.com/uploads/4402250/normal_600302f8d4b2e.pdf
    • https://cdn.sqhk.co/merivexasug/2jdhfic/hashtags_for_snapchat_fun.pdf
    • https://static.s123-cdn-static.com/uploads/4388040/normal_5fffe9b2c3ff2.pdf
    • https://toralalog.weebly.com/uploads/1/3/1/4/131436966/9704666.pdf
    • https://cdn.sqhk.co/xugiwatokax/jicZ79L/us_magistrate_docket_sheet_pa.pdf
    • https://tamalokumolegi.weebly.com/uploads/1/3/4/6/134656593/97c3270d6ff3719.pdf
    • https://cdn.sqhk.co/mezutowede/ibcjdXp/43229986405.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://soxuxemakim.rf.gd/gazawugagijuligij.pdf
    • http://rebokomixuxoj.epizy.com/25730693319.pdf
    • https://43a2ba88-5de9-465b-b95f-6a4d82f2d06e.filesusr.com/ugd/dcbeda_dc6ce500a18a4b6ea44d5dc456120430.pdf?index=true
    • https://95c758d6-fd33-43c6-b5d0-f1f55e07e946.filesusr.com/ugd/cb0188_6bd2c7d06f08403ba6f6f979a9b08b01.pdf?index=true
    • https://s3.amazonaws.com/fifuto/nintendo_3ds_emulator_for_tablet.pdf
    • https://s3.amazonaws.com/tozaduliwubega/the_man_in_the_high_castle_cast_season_5.pdf
    • https://s3.amazonaws.com/xoguwavosuje/sewumod.pdf
    • http://vivijar.epizy.com/88634803467.pdf
    • https://s3.amazonaws.com/bubodeliza/kukopovifejax.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e756.bin
12e78e29afea17574a71dee803839aa78bfe8bc8f8444588141301c4483d0b9a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE756 5148 bytes
font_01_sfnt_off0000f8cb.bin
d8a01bc5fea2e43f1da29822bbb2797b98b980222ae306c34403575c09bc51fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF8CB 11356 bytes
font_02_sfnt_off00011f85.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11F85 4324 bytes

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