Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e711cd089dc6d30…

MALICIOUS

PDF

85.2 KB Created: 2021-07-22 00:14:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 5a07558ac309e0f063632b93028e0d28 SHA-1: 7a7cb6d10623e64241bf439b31fa101186a0d267 SHA-256: 1e711cd089dc6d3072184fec643d140318d00e43917f1f1210de3fcca351e96c
104 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The file is identified as malicious by a machine learning classifier and ClamAV, with a specific detection name indicating it's a phishing trojan. The presence of an embedded external URI and a visual download button suggests an attempt to trick the user into downloading a secondary payload. No scripts were extracted, limiting further analysis of execution flow.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://feedproxy.google.com/~r/razvivatel/yapz/~3/0YvHz_IItD0/square?utm_term=na+kuch+poocha+female+mp3+song+download
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f88aeb5daaa92576c42146/1626901227926/satapugisa.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f0c08f21e37b5b0f350076/1626390672159/44567779815.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e7d2286e46386ca3c02d6e/1625805352793/approximation_in_a_sentence.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f5f85abfec8d090410df8b/1626732634801/33608884065.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f7a32438b1e25ea6dfa2e9/1626841892978/savazapedusokowodu.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e7a25e25441e1b3782cc98/1625793118560/xizapi.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e91276dc37083541b82b54/1625887350658/low_voices_on_the_voice.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e7850a2b7b311e5300deba/1625785610686/types_of_incentives_in_hrm.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f33c4026e2e727c260ce51/1626553408656/direction_of_cosines_of_a_vector.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f3855f7f94c710fbc840aa/1626572127671/other_word_for_disrespect.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f6427e66e8821a32c2fefc/1626751614515/sizofavinopefuwekiva.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ee4e16c27d1e40a54b6cde/1626230294967/85876983826.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f0818c91b8e868d28a2401/1626374540228/the_meaning_of_cursory.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f19511593b872e59d3a72d/1626445073131/kolakasudanovujevin.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f88adbed32df628a59cfc0/1626901212000/i_have_feelings_for_you.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e9449292abcc18c4f73733/1625900178183/email_english_2nd_edition.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f29b3e6c177f33d79aac31/1626512190674/80345281670.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f25dd86167905317d0e577/1626496472985/what_relationship_is_your_cousins_child.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ec8a6b6ad76c097490ef6e/1626114667630/short_stories_to_tell_kids.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f4eaa050974615f935063b/1626663584953/40683295720.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://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e742.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE742 16792 bytes
font_01_sfnt_off0000ff54.bin
e8f57e212b9459284773248c0aec7ef772478b548474d5b131096a67f9ae8dba		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFF54 17032 bytes
font_02_sfnt_off00012c32.bin
8c1b0b4b7453e454dacac516b7cd287d33dea6a2682b0d8540a8cca8a7819581		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12C32 11204 bytes

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