Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9449ac3b3632101…

MALICIOUS

PDF

74.6 KB Created: 2021-02-24 16:20:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 1bd410e97f91c47d694b812b7a147d32 SHA-1: d073f56d1dca8d706064309b7e8198cb884abcc8 SHA-256: b9449ac3b3632101b5703a13ae3c4ce7339a3ed7da343c3696c9afdf49be8d11
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://seumenha.ru/wix?keyword=adb+install+apk+fire+tv PDF link annotation
    • http://titanof-filtr.ru/abcd_2_video_song_bestwapbg5bg.pdfIn PDF document text
    • http://ig-mediateam.net/ejemplos_de_descripcion_subjetiva85cxm.pdfIn PDF document text
    • http://razvivatel.blog/ronefawuduteriferimawevudkr96n.pdfIn PDF document text
    • http://qunit.space/53370727303zcrcg.pdfIn PDF document text
    • http://gogodolajukapob.22web.org/16774037036.pdfIn PDF document text
    • http://instgramcopyrightdispute.com/sufawofenidurofopaccqh2.pdfIn PDF document text
    • http://kushtanash.ru/nikexumolelubaxirerakwvpy4.pdfIn PDF document text
    • http://damvglaz6.xyz/what_is_the_samsung_smart_remotetizjb.pdfIn PDF document text
    • http://rmk4sale.xyz/lisekolejobubazixi7gm81.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/sagotomagin/codingbat_answers_string_1.pdfIn PDF document text
    • http://gofudawaropuz.epizy.com/74538786961.pdfIn PDF document text
    • https://s3.amazonaws.com/zepifudoxapo/lulogasafiji.pdfIn PDF document text
    • https://s3.amazonaws.com/nafoxuda/bluestacks_latest_android_version.pdfIn PDF document text
    • https://s3.amazonaws.com/tokatefozude/adobe_audition_1._5_full_crack.pdfIn PDF document text
    • http://putotapuzavip.rf.gd/96709042717.pdfIn PDF document text
    • https://s3.amazonaws.com/tanikanaw/jojera.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e8d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8D7 5288 bytes
SHA-256: 73d3cabb253a5af328614c1a37ff3f8dea7a45826c134ac81365751137915693
font_01_sfnt_off0000fae6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAE6 10208 bytes
SHA-256: b14b4f2e9a824196e660d3a48ce9eb49da31bc89cf73b41d240bada657d1a6c2