Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2477bbee6b2e84e…

MALICIOUS

PDF

85.1 KB Created: 2021-07-23 02:48:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: e6db3e17c9c42b00fa0c8ca65f434ab5 SHA-1: aa4a562987c66c4318c2d79681875d7190180b21 SHA-256: e2477bbee6b2e84ee636319ea5ec0dd5b961e523cc731066fab0648a54246b98
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ML classifiers and ClamAV, with the ClamAV detection name suggesting a phishing trojan. While no scripts were explicitly extracted, the PDF structure and embedded URLs, even those marked as benign, indicate a potential lure. The presence of external URIs suggests an attempt to redirect the user or download further content, aligning with a phishing or malware distribution attack pattern.

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://feedproxy.google.com/~r/sq/ugae/~3/nCRFBnYrBHY/square?utm_term=birthday+song+with+name+and+photo+app+download
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f940bd54fb7d3054426226/1626947774228/how_many_instruments_can_prince_play.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f5e9d84394dd33197424d1/1626728920911/what_colour_goes_with_light_orange.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ee3af6df274736e0ab72b8/1626225398668/penny_lab_chemistry_answers.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f00d3ae00eb31d7cee22c3/1626344762342/14112671416.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e7a2d1adf2c26882fd59df/1625793233367/how_old_is_melissa_gilbert_from_little_house_on_the_prairie.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60f2edb31ad9bf1c32af110e/1626533299484/how_old_is_amy_in_sonic.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ee634733d4654651bfc3ec/1626235719733/71748730807.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f0533c499c44206eaee25d/1626362684521/56717131738.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ee1cb12ee8b51fd932d5a8/1626217649324/xifiramiropogenovovozup.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60f9efd9cad33d22b1e59946/1626992601662/integers_rules_in_addition.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f65fed0a4e123368d421ca/1626759149505/11550488437.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ee728d7dee9f188f7b8ac8/1626239629582/home_the_new_workplace_ielts_reading_answers_practice_test_4.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f9fc5ace03864274b318a7/1626995802370/the_rise_of_the_prophetic_voice.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f9d310e4483e5a42729d7d/1626985232466/lunge_knee_up.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60eca24251a87c5d75aeb9d8/1626120770455/80816469683.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f40d088a396f1703a5d4fc/1626606856840/20437219358.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ec899820781e4bb11c8df9/1626114456973/psychodynamic_couples_therapy.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f1b2a6046f97577cc95a37/1626452646324/32622663975.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_off0000e9d7.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0xE9D7 16792 bytes
font_01_sfnt_off000101e9.bin
0e25fec4bc06b6bb65c5dd96a38622ae711193e8911c3bc3668312cd86d47c3f
pdf-font-stream PDF embedded font (sfnt) at offset 0x101E9 16592 bytes
font_02_sfnt_off00012d03.bin
565ecfb8ada4e4757c240dee2081316508f518983d9339e2eecbb133327645d7
pdf-font-stream PDF embedded font (sfnt) at offset 0x12D03 11092 bytes