Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7e6a88ad0057f35…

MALICIOUS

PDF

160.5 KB Created: 2021-03-19 06:37:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cd21d65b532c327b90d6791623c87608 SHA-1: 2fba7e4497b1aa70503f52ad2a6da38c4c5927b0 SHA-256: e7e6a88ad0057f357fd50762f4be06c3d9a40c371127cbfe6874e6ff0d2694c8
136 Risk Score

Malware Insights

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

The sample was identified as malicious by a ML classifier and ClamAV, and exhibits characteristics of an advance-fee scam lure. The embedded URL `https://nipisod.ru/wix?keyword=howard+hughes+pdf` likely serves as a redirector or landing page for the scam. While no scripts were explicitly extracted, the PDF format can embed JavaScript for malicious actions, and the presence of external URIs suggests an attempt to download further content or redirect the user.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://nipisod.ru/wix?keyword=howard+hughes+pdf
    • https://mokizafot.weebly.com/uploads/1/3/5/3/135347773/nulusujimofixo-menetopaguzit-dumugujidejom.pdf
    • http://zajowidased.iblogger.org/mordekaiser_guide_champion_gg.pdf
    • https://rovonowevon.weebly.com/uploads/1/3/6/0/136051941/44637febfff2cc.pdf
    • https://puluzoxaxidu.weebly.com/uploads/1/3/2/6/132683087/5ef4ef70fdab.pdf
    • https://cdn.sqhk.co/solaxutom/ggdjcjh/58720273519.pdf
    • https://cdn.sqhk.co/kufejagefep/idiehcn/king_of_thieves_game_bases.pdf
    • http://worakozun.22web.org/edible_plants_of_the_pacific_northwest.pdf
    • http://tonalemeketav.66ghz.com/portosystemic_shunt_cat_eyes.pdf
    • http://dugules.iblogger.org/charlton_v_shrewsbury_match_report.pdf
    • https://cdn.sqhk.co/livujiguf/jgfDbTS/xikilabaseboso.pdf
    • https://gewavidabu.weebly.com/uploads/1/3/0/7/130775927/weginomudumuf.pdf
    • http://tolewigep.22web.org/delonghi_ceramic_tower_heater_manual.pdf
    • https://cdn.sqhk.co/folamudoj/Pjhgghc/cardiologia_dr_guadalajara.pdf
    • https://vutajavegev.weebly.com/uploads/1/3/4/0/134040502/punijagudif_fezazoviwor_japujujosus_dirijofagavoj.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/93c3f251-ea48-4dd7-9c45-b111aab4c391/11344453467.pdf
    • https://uploads.strikinglycdn.com/files/43aa5218-b3a0-44f2-bf10-0ba16e9dcf8e/10089396250.pdf
    • http://xaligapuk.epizy.com/7387001516.pdf
    • https://uploads.strikinglycdn.com/files/ac76fc27-313f-4984-ae58-925aedc6ff6d/exercises_on_simple_compound_and_complex_sentences_for_grade_6.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_off00023765.bin
5feeed7c34102f777f6a071e6a6b5909e30fbe997aa41aa465f67fdeda066e54
pdf-font-stream PDF embedded font (sfnt) at offset 0x23765 5324 bytes
font_01_sfnt_off00024990.bin
e610a46c3aca327a059f3a962fa584223cbf80978d1caac48020929d90b7f948
pdf-font-stream PDF embedded font (sfnt) at offset 0x24990 13232 bytes