Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2468d10a5e31dcb…

MALICIOUS

PDF

73.0 KB Created: 2021-04-27 19:26:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2ac6a1cec171784b6d14623cb6c4eb66 SHA-1: 2067daf423004e4ef455050b2906d596d3838edb SHA-256: f2468d10a5e31dcbe8ad82d8b388f0081306d06b8a2af43ca33cd54d76b8c55b
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically identified as a phishing trojan. It contains an embedded URI pointing to 'lozipotod.ru', which is likely the malicious destination. The document body, though heavily obfuscated, suggests a lure related to a product, potentially a 'Samsung q7 65 inch wall mount'. No scripts were extracted, but the presence of an external URI in a malicious PDF strongly indicates a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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/strik?utm_term=samsung+q7+65+inch+wall+mount
    • https://cdn-cms.f-static.net/uploads/4417535/normal_606b25a014dbf.pdf
    • https://static.s123-cdn-static.com/uploads/4477163/normal_5fdf718ec1694.pdf
    • https://static.s123-cdn-static.com/uploads/4480155/normal_5fceac8f7ba80.pdf
    • https://kugavulaxux.weebly.com/uploads/1/3/4/4/134454690/71f9b.pdf
    • https://cdn-cms.f-static.net/uploads/4470960/normal_6026137a07d2f.pdf
    • https://static.s123-cdn-static.com/uploads/4412767/normal_60048e67b1b30.pdf
    • https://cdn-cms.f-static.net/uploads/4388619/normal_6034249999119.pdf
    • http://bagadiwep.22web.org/1191923093.pdf
    • https://gejizataki.weebly.com/uploads/1/3/3/9/133997606/kefivixu.pdf
    • http://nejetevu.22web.org/blue_eyed_devil.pdf
    • https://static.s123-cdn-static.com/uploads/4417039/normal_5fcd8fcfec546.pdf
    • https://static.s123-cdn-static.com/uploads/4412151/normal_5ff57d5246156.pdf
    • https://mebagotu.weebly.com/uploads/1/3/4/4/134444887/1033160.pdf
    • https://gifitutopa.weebly.com/uploads/1/3/4/4/134470147/6326060.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/memobofilenabon/ronejezesujunijafavedu.pdf
    • http://pixagikaw.epizy.com/transit_maps_of_the_world.pdf
    • https://s3.amazonaws.com/mexavofezoxi/how_long_does_it_take_to_learn_final_cut_pro.pdf
    • https://uploads.strikinglycdn.com/files/e1ac6629-7bc0-4350-8632-ee4a3eea9d9a/fossil_q_explorist_gen_3_charging_time.pdf
    • https://uploads.strikinglycdn.com/files/55439139-6633-4ad1-bbe5-8f1b98bc4a9f/vesumeni.pdf
    • https://uploads.strikinglycdn.com/files/7c884ab5-b1c8-427b-b583-7442e808b05a/how_to_use_sony_rx10_iv.pdf
    • https://uploads.strikinglycdn.com/files/0c4756b3-745d-43e0-8498-b1d0d5914405/zagg_wireless_keyboard_manual.pdf
    • http://wivonuwexewixir.rf.gd/sonerunude.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_off0000dccf.bin
b6752ee676b131ad6cd0609f9e1223a0f1f71f932868582a3d1322689abc811f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDCCF 5796 bytes
font_01_sfnt_off0000f084.bin
5d8fcbdb31ca00407e6005d90e8e5f714f02cffeb44ee8994aafcfd100fc1caf		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF084 11268 bytes

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