Malicious PDF — malware analysis report

Static analysis result for SHA-256 009b2c67fb2f18d0…

MALICIOUS

PDF

77.7 KB Created: 2021-01-14 22:27:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 79c1556150a4a102744263a5e86a171f SHA-1: 71dcebfd9ef01cf3c8371f7a6866ec2083b47986 SHA-256: 009b2c67fb2f18d0aebe5dde820ebf5785bb7ed56fe4f0e73dd148e6dcb92039
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV specifically identifying it as a phishing trojan. The embedded URL 'https://traffking.ru/123?utm_term=motorcycle+guardian+bell+rules' is a strong indicator of a phishing attempt or a distribution point for further malicious content. No scripts were extracted, but the presence of embedded URLs and the high confidence malicious verdict suggest an attempt to redirect the user to a compromised or malicious site.

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://traffking.ru/123?utm_term=motorcycle+guardian+bell+rules
    • https://cdn.sqhk.co/wuvexudid/haRYjdp/patanjali_yoga_sutras_devanagari.pdf
    • https://static.s123-cdn-static.com/uploads/4469640/normal_5ff764c2df7e4.pdf
    • https://cdn.sqhk.co/tixunudixa/cCghggX/zovefimuzoxejivepodot.pdf
    • https://static.s123-cdn-static.com/uploads/4418166/normal_5ff221171ce34.pdf
    • https://site-1227582.mozfiles.com/files/1227582/42875792107.pdf
    • https://cdn.sqhk.co/sovokeduseb/g3Mggji/39298974463.pdf
    • https://site-1171745.mozfiles.com/files/1171745/28785462132.pdf
    • https://site-1166701.mozfiles.com/files/1166701/30832818539.pdf
    • https://site-1248916.mozfiles.com/files/1248916/safeg.pdf
    • https://site-1172884.mozfiles.com/files/1172884/kegoravekoz.pdf
    • https://site-1179105.mozfiles.com/files/1179105/ios_13_app_store_logout.pdf
    • https://cdn.sqhk.co/wamitavixitu/7iphhif/puppy_wallpaper_4k_hd_for_mobile.pdf
    • https://cdn.sqhk.co/lebereme/givZIhj/deity_fallen_best_class.pdf
    • https://cdn.sqhk.co/wazofovam/ZgjdVH5/7751006488.pdf
    • https://site-1173463.mozfiles.com/files/1173463/rogodugakosivulifekovu.pdf
    • https://site-1176005.mozfiles.com/files/1176005/67775211202.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e5df.bin
dc0c37650750a58fd7ccc0ac1c03f9712e485b188ac0d8ed20416a02a8129f98
pdf-font-stream PDF embedded font (sfnt) at offset 0xE5DF 5236 bytes
font_01_sfnt_off0000f7c8.bin
17de2229b206a582b975b5ad762d4f0773bf68acbfe89676b9263f3c1fa2aa21
pdf-font-stream PDF embedded font (sfnt) at offset 0xF7C8 10600 bytes
font_02_sfnt_off00011bf6.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0x11BF6 4324 bytes