Malicious PDF — malware analysis report

Static analysis result for SHA-256 d80a8cb7e6f69547…

MALICIOUS

PDF

78.0 KB Created: 2021-03-21 11:02:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ec1bfb2784bd823eded1fcd59dc6bc2c SHA-1: bd0f82220c1b4dac8cc37383cd462a64270b8a1d SHA-256: d80a8cb7e6f6954775bf14845eac1b0e8867e817d3fd8bde6c0d14aa14da29a2
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URI pointing to a suspicious domain, likely intended to deliver a secondary payload or redirect the user to a phishing site. The document body, though heavily obfuscated, suggests a lure related to a product manual, consistent with social engineering tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://xezojetit.ru/wix?keyword=atwood+hot+water+heater+manual
    • https://wuxelulomevadi.weebly.com/uploads/1/3/4/9/134904547/nugojapejanuji.pdf
    • https://cdn-cms.f-static.net/uploads/4489440/normal_600e5a4fa0880.pdf
    • http://mafaregasinuviv.22web.org/basquetbol_historia_reglas_y_fundamentos_basicos.pdf
    • https://paxolobiwoke.weebly.com/uploads/1/3/1/1/131163878/7555973.pdf
    • http://tewapakug.22web.org/52154563297.pdf
    • https://static.s123-cdn-static.com/uploads/4371265/normal_5ff6537701714.pdf
    • http://nogivubuleduwi.22web.org/92217728870.pdf
    • http://bifinisotipa.22web.org/3909689518.pdf
    • https://xizuxikeg.weebly.com/uploads/1/3/0/7/130740292/464b2baf3bf4c85.pdf
    • https://xebolefijepipol.weebly.com/uploads/1/3/0/7/130739937/968db.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/44dd8589-5bb5-4c50-ad67-f6ba2763f10c/financial_peace_jr_age.pdf
    • http://vazojebimuvap.epizy.com/flute_sheet_music_gabriel_s_oboe.pdf
    • http://pulawev.epizy.com/moultrie_cell_camera_problems.pdf
    • http://welilejaw.epizy.com/37629251644.pdf
    • https://uploads.strikinglycdn.com/files/1e1543f5-ceb7-497c-89d4-1f3dd7b6217b/93829165058.pdf
    • https://uploads.strikinglycdn.com/files/19b4d0ef-3e28-44da-ae0a-8de8fdfbca8d/watch_alex_rider_stormbreaker_online_free.pdf
    • http://romevakamijoke.epizy.com/79811448203.pdf
    • http://jezepanan.rf.gd/gumevamodizoxasila.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_off0000f6c8.bin
d19c21045514e9976b51a8c390edb7df5709a753c28291bdc5afe192fc77c78d
pdf-font-stream PDF embedded font (sfnt) at offset 0xF6C8 4968 bytes
font_01_sfnt_off00010792.bin
e13f865cae35cbbc7672fab0607357115333316a1a38d00877d885a7f3f2ab2b
pdf-font-stream PDF embedded font (sfnt) at offset 0x10792 10392 bytes