Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a3062ac172e8f07…

MALICIOUS

PDF

77.2 KB Created: 2021-04-06 17:45:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d0adb64fcabbe35fafa2ba8e71062d2e SHA-1: 5f80d3b85f8b298f19cc600c6411197ed133ae48 SHA-256: 6a3062ac172e8f07f8ddde37f54f86fc66d8f4e6581a6c1e1990898f23d26fde
116 Risk Score

Malware Insights

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

The file is a PDF that impersonates a document signing service, a common lure for phishing attacks. It contains an embedded URI pointing to a suspicious domain, likely intended to trick the user into downloading a malicious payload. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Document signing service impersonation lure medium SE_DOCUSIGN_LURE
    Document impersonates DocuSign, Adobe Sign, or a similar signing service in a signing-request context
  • 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/123?utm_term=adobe+acrobat+pro+2017+manual+pdf
    • https://cdn-cms.f-static.net/uploads/4410988/normal_605a5e14490b1.pdf
    • https://cdn-cms.f-static.net/uploads/4365582/normal_60302335bb018.pdf
    • https://cdn.sqhk.co/tilekixu/jgeRhd7/android_file_transfer_for_mac_not_working.pdf
    • https://static.s123-cdn-static.com/uploads/4383918/normal_60062e0ac5968.pdf
    • http://bepibolet.22web.org/election_2020_date_list.pdf
    • http://pigaxugopaxazuz.22web.org/watermark_app_for_android.pdf
    • https://cdn.sqhk.co/noperizapewo/jbhajjd/horizontal_line_test_function.pdf
    • https://cdn.sqhk.co/sexuzoropa/iiaKgit/69523232495.pdf
    • https://static.s123-cdn-static.com/uploads/4450635/normal_5fccdc3daf45b.pdf
    • https://static.s123-cdn-static.com/uploads/4446382/normal_60062ef5968de.pdf
    • https://cdn.sqhk.co/dibirolinu/ijdjfDw/mizufebuloso.pdf
    • https://static.s123-cdn-static.com/uploads/4392199/normal_6001353283ac6.pdf
    • https://cdn-cms.f-static.net/uploads/4425917/normal_601a9d3753e3e.pdf
    • http://xejevojesinil.22web.org/nemivuze.pdf
    • https://static.s123-cdn-static.com/uploads/4444371/normal_5fe3e76335d40.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://zalezir.epizy.com/86103320288.pdf
    • http://sivinufedumoja.rf.gd/povate.pdf
    • https://ffb80149-315c-4936-8637-e87477b606fc.filesusr.com/ugd/e7410d_788b0e7fb54141d0bc6d3f9c679f75a2.pdf?index=true
    • https://8d6920c1-aef5-45ed-b1a0-e693d63948fb.filesusr.com/ugd/0a593f_d9c0f17569704035b56d5e3d41fd3ec4.pdf?index=true
    • https://e3055f73-6236-423b-b810-4bc1a15f300f.filesusr.com/ugd/fa12d1_b0539738b09847edb95f0a1616c97797.pdf?index=true
    • http://fefuvorezikoko.epizy.com/accounting_and_finance_an_introduction_eddie_mclaney.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_off0000ef36.bin
0578559c4e3bbca6d5f4b76bba4f72822306827cde6f4601924296882c0ec053		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEF36 5656 bytes
font_01_sfnt_off0001026c.bin
3789ce3a0a6de327c85b483dd8f7ef92c3599b8ce3473d28b870792f17f2dac4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1026C 10984 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.