Malicious PDF — malware analysis report

Static analysis result for SHA-256 92dd2c4864b237eb…

MALICIOUS

PDF

81.4 KB Created: 2021-03-23 06:49:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9ac4571f580d417c3889aa0dbf8d1859 SHA-1: 701bc564d1387100f56676e24c123530361d96c5 SHA-256: 92dd2c4864b237eb4c4b32db996073af82932e6886156c882db8d4902317993b
96 Risk Score

Malware Insights

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

The PDF contains an embedded external URL that is presented as a "ffxiv stormblood mining leveling guide". This URL, along with the ClamAV detection and ML classifier flagging, strongly suggests a phishing or malware distribution attempt. The PDF structure and embedded content are consistent with malicious documents designed to trick users into visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jumiwimov.ru/123?utm_term=ffxiv+stormblood+mining+leveling+guide
    • https://cdn-cms.f-static.net/uploads/4446931/normal_60364f8ddacd4.pdf
    • http://pefiworawodud.mypressonline.com/craftsman_16_electric_chainsaw_chain_replacement.pdf
    • https://cdn-cms.f-static.net/uploads/4375703/normal_603ea9f375a62.pdf
    • http://tugezij.22web.org/camino_del_norte_etappen.pdf
    • https://cdn.sqhk.co/mexovaru/1hajhcm/panipidodupaninasuwed.pdf
    • http://tideparipawovu.mygamesonline.org/burial_rites_analysis.pdf
    • https://static.s123-cdn-static.com/uploads/4449014/normal_5fc844e440a34.pdf
    • https://cdn-cms.f-static.net/uploads/4369166/normal_6031d2e4519bb.pdf
    • https://cdn.sqhk.co/bulixanejad/dhhhdiP/52968087711.pdf
    • https://cdn-cms.f-static.net/uploads/4378153/normal_604cfe48b53bc.pdf
    • https://cdn-cms.f-static.net/uploads/4490949/normal_6058782038c8a.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://wekidezeze.epizy.com/33630373688.pdf
    • https://uploads.strikinglycdn.com/files/10e23317-9386-456d-acaf-7afcc83088e9/lakare.pdf
    • https://uploads.strikinglycdn.com/files/c1a03f59-649e-4bcf-a258-0f8330594236/rigozafitu.pdf
    • https://uploads.strikinglycdn.com/files/f25c0781-c19e-48e1-91c4-b104fe3e7315/how_to_activate_voice_command_on_windows_10.pdf
    • http://zedebegeku.myartsonline.com/jewinevevirokokamow.pdf
    • https://uploads.strikinglycdn.com/files/55531e79-eafd-476d-81a1-2db5e7f805da/can_you_run_vba_code_in_excel_online.pdf
    • https://uploads.strikinglycdn.com/files/ff563dd6-4da3-4c8f-8df4-c487fe2f6204/how_much_is_a_schwinn_frontier_bike_worth.pdf
    • http://vijiviwo.epizy.com/built_with_science.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_off0000f296.bin
67044fa358dfb10ab5f4849582b92c180d2a0d1694fa24eb953b69e12988174a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF296 5120 bytes
font_01_sfnt_off000103f4.bin
bacf8fb86fb7fbf9ca6b6a18cef72b6c7714654237e0b5bef3d143c6a8791a6b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x103F4 11252 bytes
font_02_sfnt_off00012a1d.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12A1D 4324 bytes

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