Malicious PDF — malware analysis report

Static analysis result for SHA-256 32851ec9e95a8391…

MALICIOUS

PDF

71.0 KB Created: 2021-03-29 12:01:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 35bf14be6762175f1ca5a155646d147a SHA-1: bc709d2fa2a3e696579ae7939851bca8746885a9 SHA-256: 32851ec9e95a83912bc92c32dc2b218dac6ac296cb945395a718d2925ea1270f
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains an external URI pointing to a URL that appears to be a lure for downloading a PDF, disguised as an academic solutions manual. While no scripts were explicitly extracted, the PDF structure and the presence of external URIs suggest an attempt to deliver a malicious payload, likely through social engineering.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://pelibifir.ru/award?keyword=principles+of+helicopter+aerodynamics+solutions+manual+pdf
    • http://difirujasulixe.iblogger.org/nationalistic_period.pdf
    • https://static.s123-cdn-static.com/uploads/4465263/normal_5ff19b5d2c80e.pdf
    • http://ygrash.website/java_jdk_32_bits_offlineneex4.pdf
    • https://static.s123-cdn-static.com/uploads/4415937/normal_5ff8a9a77b10f.pdf
    • https://cdn-cms.f-static.net/uploads/4484358/normal_6028fccb7afa7.pdf
    • https://static.s123-cdn-static.com/uploads/4463526/normal_6007027d11c62.pdf
    • http://digitaltoolsfor.xyz/859697075cvd3a.pdf
    • https://cdn-cms.f-static.net/uploads/4408851/normal_6034ed622b490.pdf
    • http://xxlmature.site/784039034881of1i.pdf
    • https://static.s123-cdn-static.com/uploads/4370267/normal_5fe0823b54cf9.pdf
    • http://frasqen.online/46787595031x5ihk.pdf
    • http://normaa-id.com/remington_rm4618_outlaw_46cc_18-inch_gas_chainsaw_review87cxz.pdf
    • https://cdn-cms.f-static.net/uploads/4451545/normal_60410204214cb.pdf
    • https://static.s123-cdn-static.com/uploads/4390641/normal_5feebf5b4eb2c.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/ravuxudibure/22557262967.pdf
    • http://lorojol.rf.gd/book_cover_design_template.pdf
    • https://s3.amazonaws.com/nitatotol/can_moto_g6_battery_be_replaced.pdf
    • https://s3.amazonaws.com/bogijexu/spider_man_animated_series_1994_full_episodes_in_hindi.pdf
    • https://s3.amazonaws.com/metubevozisul/bevufilamuronag.pdf
    • https://s3.amazonaws.com/xalasawu/saxifilupugagokevugiworo.pdf
    • https://s3.amazonaws.com/zedilegol/abraham_hicks_ask_and_it_is_given_deutsch.pdf
    • https://s3.amazonaws.com/likerajatob/lokezobuku.pdf
    • https://s3.amazonaws.com/tuxutedi/5_oclock_free_crack_giveaway_gif.pdf
    • https://s3.amazonaws.com/suzujewa/guide_du_routard_thailande_khao_lak.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_off0000d59a.bin
5e46d7bf8fd148f5f25bc1c445970a3222c2b2ce7fefd9895be8b8370e92b641		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD59A 5496 bytes
font_01_sfnt_off0000e82b.bin
4371b7e60aafc84c5123cbb74bcecf15cee4dd2ad49bf7126b38851330050b56		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE82B 10400 bytes

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