Malicious PDF — malware analysis report

Static analysis result for SHA-256 877915b4630aef18…

MALICIOUS

PDF

104.3 KB Created: 2021-04-28 17:20:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c76d9323e264353d8ea076e0e00a3e90 SHA-1: d4fa549ee94e4179ff28e58098fbfa4152ca9f7c SHA-256: 877915b4630aef186c7f4209e824fa95963c3056ac706c2271c8b5c82810f0c0
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to host a phishing or malware payload. The document body, though partially corrupted, suggests a lure related to Islamic funeral prayers, a common social engineering tactic. No scripts were extracted, but the presence of external URLs and the overall detection profile strongly suggest a phishing or downloader attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jumiwimov.ru/strik?utm_term=prayer+to+read+when+someone+dies+in+islam
    • http://cocobeautybar.ca/63556629669uinm0.pdf
    • http://tesocoin.online/android_device_manager_forgot_passwordsk37d.pdf
    • https://jonolepazom.weebly.com/uploads/1/3/4/5/134520471/6688773.pdf
    • http://kushtanash.ru/what_is_the_point_of_view_of_hills_like_white_elephantsu2zfd.pdf
    • http://vawadofofasip.getenjoyment.net/67122974552.pdf
    • http://bexixibeguben.sportsontheweb.net/vuvigenanuxuwe.pdf
    • https://cdn.sqhk.co/majukedow/diftwij/xumatuzuxuvikeke.pdf
    • http://stroiline74.ru/zedelubik0kui.pdf
    • https://boxijobanopuvob.weebly.com/uploads/1/3/0/7/130739783/buledalat-mexobizotew-lavar-wufiwupemokifeg.pdf
    • https://cdn.sqhk.co/konidadelan/jgfichf/my_little_pony_rainbow_runners_free_online.pdf
    • https://cdn.sqhk.co/vixawutozama/Drhdthd/farkle_scoring_app.pdf
    • http://eushopvmn.site/523251648e4kpe.pdf
    • http://kanaxade.mygamesonline.org/o_love_divine_sheet_music.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://pilejifizodan.onlinewebshop.net/dajusokotubujameba.pdf
    • https://s3.amazonaws.com/remavuj/muvelumidulisosesonukigef.pdf
    • https://s3.amazonaws.com/wupuxus/balloon_debate_speech_template.pdf
    • https://uploads.strikinglycdn.com/files/5a42b1fa-498c-42d4-aa19-062f5a93737d/negative_binomial_distribution_and_geometric_distribution.pdf
    • https://s3.amazonaws.com/vikukinumet/simple_html_template_without_css.pdf
    • https://uploads.strikinglycdn.com/files/05ca1151-63c0-43fc-acbd-7c587ec76c88/36496945327.pdf
    • http://wuxosalilujaza.atwebpages.com/sum_of_arithmetic_sequence.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://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000163c4.bin
0cc78450c4571155cc73e5c3be3c5bf205de50f927d8e37cf1350eee9b1d3746		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x163C4 26288 bytes
font_00_sfnt_off00012a02.bin
5d5fc70fd073a68b5dfe1dd46cd8793f660eba9d5139eed778c4c85f099f531c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12A02 5260 bytes
font_01_sfnt_off00013bca.bin
ce25ab1d75fe766c818f69774b848aeb8eb067503ef9b813d7b08b6bfed6e346		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13BCA 11808 bytes

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