Malicious PDF — malware analysis report

Static analysis result for SHA-256 693ab94606de18d7…

MALICIOUS

PDF

133.5 KB Created: 2021-03-15 22:42:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b40d4f0d43c28748e06e50a0d0527473 SHA-1: 4aba17837b7f39c3f34b7363295034498518d20a SHA-256: 693ab94606de18d7b1e776ae832f4f16a54d78b4985b3d5ad76e25f344a62636
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URL pointing to a suspicious domain, likely intended to deliver a second-stage payload. The document body, though heavily obfuscated, contains text that could be interpreted as a lure related to the 'industrial revolution'. No scripts were extracted, but the presence of external URIs and the overall detection suggest a phishing or downloader attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://midufefew.ru/strik?utm_term=second+stage+of+industrial+revolution
    • https://cdn.sqhk.co/nugubirudif/R0hcHRj/after_effect_template_intro_free.pdf
    • https://cdn.sqhk.co/juxerawabuf/UDZIaMS/fanoja.pdf
    • http://xirapanagix.getenjoyment.net/annexure_d_for_passport.pdf
    • http://jatepemiv.22web.org/balance_sheet_formula.pdf
    • http://mazejofeg.mygamesonline.org/mojazoviwivunesugodo.pdf
    • http://giwitap.getenjoyment.net/51375184890.pdf
    • https://static.s123-cdn-static.com/uploads/4369327/normal_5fed8fbdd13c1.pdf
    • http://igcopyrightforhelps.com/kujujuvuxebivuwipekoberu5jwuk.pdf
    • http://lapitubemexidi.mywebcommunity.org/new_catholic_encyclopedia_vol_9.pdf
    • https://cdn-cms.f-static.net/uploads/4421058/normal_60497b5a44c6b.pdf
    • https://static.s123-cdn-static.com/uploads/4422373/normal_5ff0dceda6e5d.pdf
    • https://cdn.sqhk.co/mepetiruzi/g4F1Sic/nededivirirukilawuzos.pdf
    • https://cdn-cms.f-static.net/uploads/4455660/normal_60201408e62ae.pdf
    • https://cdn.sqhk.co/wozobifanu/2hatGia/apartment_lease_agreement_word_format.pdf
    • http://lnstagramcopyrighthelps.com/63555221309298z8.pdf
    • http://gimudal.iblogger.org/is_heil_a_good_hvac_brand.pdf
    • http://fotubobuwenapu.scienceontheweb.net/74187075700.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://gemivaf.rf.gd/72623639041.pdf
    • http://sakogabutal.onlinewebshop.net/70820326090.pdf
    • http://patesosiw.epizy.com/jewuxumiz.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_off0001cb2b.bin
e647448380dd4dd5dd88fc561292868512ea057b7ba8cbe66c996c98d000211a
pdf-font-stream PDF embedded font (sfnt) at offset 0x1CB2B 5352 bytes
font_01_sfnt_off0001dd74.bin
fdb8458043c92f70e5b89382500ca9eded492d58fe4d91f9f826154e982df89c
pdf-font-stream PDF embedded font (sfnt) at offset 0x1DD74 12112 bytes