Malicious PDF — malware analysis report

Static analysis result for SHA-256 989bb53f047f413f…

MALICIOUS

PDF

75.4 KB Created: 2021-04-05 01:08:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 66989693cd9aa0c6e6a9d708b6eeeb84 SHA-1: 75d68fcbef09b4633acc93a6ecd7cc3d942ef0a4 SHA-256: 989bb53f047f413f2d6823423fb0a87e758834de2dbaebbd18dd4ffd8d2f4968
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL, https://lozipotod.ru/wix?keyword=world+of+warships+blitz+mod+apk, suggests a phishing or social engineering lure, likely attempting to trick users into downloading malware disguised as a game mod. No scripts were extracted, but the PDF structure and embedded URI are strong indicators of a phishing attack.

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://lozipotod.ru/wix?keyword=world+of+warships+blitz+mod+apk PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4450502/normal_60038ecbf3b86.pdfIn PDF document text
    • https://xutezanepone.weebly.com/uploads/1/3/3/9/133999331/915eaa0d01bef.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391954/normal_5fddcc366fca8.pdfIn PDF document text
    • https://xuxedujuwa.weebly.com/uploads/1/3/5/3/135345360/327273.pdfIn PDF document text
    • https://kuvegegujumil.weebly.com/uploads/1/3/4/3/134367432/9501915.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370317/normal_602c0b8f3b836.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417128/normal_602c075a6d91b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454982/normal_5fe679203704a.pdfIn PDF document text
    • https://jetosiwer.weebly.com/uploads/1/3/4/7/134767378/2a8ef07d4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/7bac4103-0526-4619-a85d-0e6617095f37/fesuripabamedaxefaxapufiw.pdfIn PDF document text
    • https://s3.amazonaws.com/tokatefozude/puvev.pdfIn PDF document text
    • https://s3.amazonaws.com/sugosubexez/weber_spirit_ii_e-310_natural_gas_grill_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b2195561-4677-4fdb-a717-145d8fcaec31/physics_list_of_topics.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d96429d-544d-497c-8da3-7c4853a4483d/how_to_cite_sources_in_ap_style.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c45e7ef-d1f0-4a20-9c63-65066bed0502/engenius_long_range_ens202ext_outdoor_wireless_access_point.pdfIn PDF document text
    • https://s3.amazonaws.com/sowewazulejewi/cake_mania_main_street_full_version_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/geradi/d_link_dcs_930l_installation_software.pdfIn PDF document text
    • https://s3.amazonaws.com/lulelepese/zunirakirijazujelozukezu.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e7cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7CB 5640 bytes
SHA-256: 39c606b607b6a4694ce5addf796d7882c19ab91d2bba322901c77539180ff507
font_01_sfnt_off0000fae6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAE6 11084 bytes
SHA-256: ab9d5ec19f03b3572cd3bd8f97d30164eaf69cf64aaa0b22dcdd53e802392067

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