Malicious PDF — malware analysis report

Static analysis result for SHA-256 320fe17f9209fb76…

MALICIOUS

PDF

152.5 KB Created: 2021-01-24 04:45:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 03cea5274ee14b631f2ea477c597d58b SHA-1: 732cc01b0bbcd3193fcffc9de2640b787aeea7e3 SHA-256: 320fe17f9209fb76c05cd57a92090c20ca556cf4374bf83ce4dff72b577dc653
96 Risk Score

Malware Insights

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

The file was identified as malicious by a ML classifier and ClamAV, flagging it as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing site. No scripts were extracted, but the presence of external URIs and the ML detection strongly suggest a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://crophysi.ru/123?utm_term=akame+ga+kill+characters+lubbock
    • http://xusonawifofi.iblogger.org/consent_for_background_check_form_sample.pdf
    • https://pufetebad.weebly.com/uploads/1/3/4/7/134711346/5098888.pdf
    • https://cdn.sqhk.co/tokafumotebi/jjcMjgQ/mexowejafoj.pdf
    • http://noziwop.22web.org/aviva_pension_platform_charges.pdf
    • https://cdn.sqhk.co/fuzomorikat/2ygjwja/talking_animals_dogs_and_cats.pdf
    • https://vexepediv.weebly.com/uploads/1/3/4/6/134668456/4566544.pdf
    • https://site-1168027.mozfiles.com/files/1168027/jebizozopelemabekel.pdf
    • https://cdn.sqhk.co/xumirikebixo/p0e5ihc/double_dragon_trilogy_apkpure.pdf
    • https://cdn.sqhk.co/guwuweri/ghoghhc/spider_stickman_rope_hero_2.pdf
    • https://sozogamawi.weebly.com/uploads/1/3/1/6/131636736/wojolosere.pdf
    • https://gubijebe.weebly.com/uploads/1/3/1/4/131483267/998c94d15b29.pdf
    • https://lipijubirenazob.weebly.com/uploads/1/3/4/7/134722159/1877137.pdf
    • https://papuwupiruji.weebly.com/uploads/1/3/4/3/134348025/dbd8aaf602f33.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://wubulunonowov.epizy.com/95656345873.pdf
    • http://xikisefux.epizy.com/mabapupulekir.pdf
    • http://firuwasuwubo.epizy.com/80686367190.pdf
    • http://rojapaj.epizy.com/informed_consent_meaning_in_kannada.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0001a1e9.bin
a37da345ce0892323786c352af6130cb1d81c5b45d6426f713a542aabffd8cf8
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1A1E9 30156 bytes
font_01_sfnt_off0001feb0.bin
7b14c624b6777853248ae7ed964caff89b2ffd4c7b295eff657eec86403c34aa
pdf-font-stream PDF embedded font (sfnt) at offset 0x1FEB0 5408 bytes
font_02_sfnt_off000210ee.bin
c208fac8740cbfea2a26ee99a35c29754646fe163435a94f324986e816a4e806
pdf-font-stream PDF embedded font (sfnt) at offset 0x210EE 14516 bytes
font_03_sfnt_off00023d83.bin
09eb23392f90e705276ef48ea977cc86b1fdb5192aed8ac418c01372e5950e8d
pdf-font-stream PDF embedded font (sfnt) at offset 0x23D83 16424 bytes