Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1108d01b26ba5be…

MALICIOUS

PDF

80.2 KB Created: 2021-03-25 07:46:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cca1138ae9de94bb9ed669de390684cc SHA-1: a20a98eb8295526b1dc1e0ce6e95ff8c903278bb SHA-256: c1108d01b26ba5be63f63ece0b34d3004db31f2210265e755dc3c18bbf0a4652
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high probability of malicious intent. It contains an embedded URI pointing to 'maypoin.ru', which is likely used to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, contains keywords related to the embedded URL, suggesting a lure for a specific search query.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://maypoin.ru/wix?keyword=hampton+bay+outdoor+lighting+transformer
    • https://buwotudotep.weebly.com/uploads/1/3/1/6/131606539/molagizem.pdf
    • https://kowasazupajobex.weebly.com/uploads/1/3/1/3/131383373/739578.pdf
    • https://cdn.sqhk.co/purilusevike/cNKhejL/baby_first_words_meme.pdf
    • https://cdn.sqhk.co/kulobuwaxegu/Qjgqlh2/zelubujugedob.pdf
    • https://cdn.sqhk.co/lupokuna/ib5fjdP/xakejodopunelaperamedad.pdf
    • https://pizipeko.weebly.com/uploads/1/3/4/6/134611096/nilajigasab-jisateka.pdf
    • http://duboxol.iblogger.org/data_warehouse_vs_data_lake_vs_lake_houses.pdf
    • http://mimisijuz.mypressonline.com/statistical_inference_via_data_science.pdf
    • https://letateworu.weebly.com/uploads/1/3/4/3/134365764/6a8f5fd3.pdf
    • http://nixewunesavi.22web.org/77724165343.pdf
    • http://dejepuzalew.mygamesonline.org/what_is_the_definition_of_great_depression.pdf
    • https://cdn.sqhk.co/modonasuje/fAXRfjg/xikojejub.pdf
    • https://vobanugan.weebly.com/uploads/1/3/5/3/135340106/pokaju.pdf
    • https://pudijeda.weebly.com/uploads/1/3/4/5/134586696/4385302.pdf
    • http://lomuwugevona.getenjoyment.net/fonogezi.pdf
    • https://cdn.sqhk.co/duxadikoti/hdijhjt/minecraft_ps4_sky_factory_map_download.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://pusevim.epizy.com/28420486215.pdf
    • http://zabezotep.epizy.com/93425311893.pdf
    • http://wusuposakatoxel.myartsonline.com/nijevaxa.pdf
    • http://jizanisan.epizy.com/96702354879.pdf
    • http://xobikiganerewen.rf.gd/68606344654.pdf
    • http://mowedesidafog.epizy.com/how_can_you_identify_a_metaphor.pdf
    • http://sufalejadi.rf.gd/zerepinojupepug.pdf
    • http://jedirolin.rf.gd/saul_alinsky_rules_for_radicals_free.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_off0000fc6c.bin
d4d2b596d194f3ed0546f0498b90a2a75822873b514dcf79662638047981b6c7
pdf-font-stream PDF embedded font (sfnt) at offset 0xFC6C 5660 bytes
font_01_sfnt_off00010f7e.bin
cd6447cb695d47933a54d6e29cb57b8ffcac5806156e4d0be541528a66a6a2e6
pdf-font-stream PDF embedded font (sfnt) at offset 0x10F7E 10308 bytes