Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e98656a6174782e…

MALICIOUS

PDF

95.3 KB Created: 2021-03-26 09:39:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c233d7dfb85e0f0ecb4dfcac24064940 SHA-1: e625764b4b73cf0522a206523ccd52771612e860 SHA-256: 9e98656a6174782e9aa0002f2d9082590dd38902650b5402d7fed69089cce2d3
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing site. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to exploit users through a malicious link, aligning with spearphishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://golowaki.ru/wix?keyword=peter+sinfield+poems
    • http://fibutogu.mywebcommunity.org/kung_fury_2_premiere.pdf
    • http://dusimajikagijak.iblogger.org/mysterious_stranger_fallout_shelter_spawn_rate.pdf
    • http://limezage.scienceontheweb.net/45856955901.pdf
    • http://jufidozotazi.66ghz.com/cinema_xxi_streaming.pdf
    • http://lusoxokurutugap.22web.org/jozesesilaxosujubewar.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/fikuvine/outer_worlds_attributes_guide_reddit.pdf
    • http://dovanokeji.epizy.com/xanaze.pdf
    • https://uploads.strikinglycdn.com/files/07c61061-f2f9-4932-b503-d53d6ce010d3/lapuvozofijetimubizusug.pdf
    • https://s3.amazonaws.com/dowadotiju/eeo_1_job_classification_guide.pdf
    • https://s3.amazonaws.com/solonebosop/what_do_you_think_computer_programming_is_all_about.pdf
    • https://s3.amazonaws.com/kezemiradigu/wilovasuferug.pdf
    • http://gofosuxubajo.epizy.com/segemumijunezutut.pdf
    • http://dofumuligo.rf.gd/death_by_meeting.pdf
    • http://jawegoxizifiti.epizy.com/nelajiwafovobaz.pdf
    • http://wekujugom.epizy.com/oil_to_use_in_honda_eu2000i_generator.pdf
    • https://uploads.strikinglycdn.com/files/f0ee3875-a5ff-4a41-b254-4b90e94ada8f/76430482755.pdf
    • https://s3.amazonaws.com/vuterijoze/janirowadarif.pdf
    • https://s3.amazonaws.com/napoledunadigo/des_moines_register_reporter_aaron_calvin.pdf
    • https://s3.amazonaws.com/pesetufavo/sunepe.pdf
    • http://suzurexitumafod.epizy.com/wajasig.pdf
    • https://uploads.strikinglycdn.com/files/0e7e195f-483f-407c-a917-d07ff486e404/dugemepolobabakigejij.pdf
    • http://balazetesu.epizy.com/citroen_ds4_manual_2014.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001170b.bin
1329c1378103af334cbd5a8f46f05fc013fc7f40c5e327ed1fdc60a876a39601		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1170B 4764 bytes
font_01_sfnt_off0001271b.bin
09c6cb90ae600390f3a04599479443de1f2f3449f7b683a7859eb3928cc9284a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1271B 11068 bytes
font_02_sfnt_off00014cb6.bin
532315dfdc59b350d447ad91845dd8cc72a836e684f536ab9a4305dc5b53fb8e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14CB6 16204 bytes
font_03_sfnt_off000161e6.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x161E6 4324 bytes

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