Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f94eaa300eb9342…

MALICIOUS

PDF

95.3 KB Created: 2020-12-23 11:14:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 45921a3d55870455ffff2954e5710e5d SHA-1: 9c1edbd7c91d429f3698caa3401a71cd4644ae98 SHA-256: 1f94eaa300eb93426dd7ecfe5cfbd9841336ce61ff2dcd8ac915800177f4a2b3
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9930

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://trafffe.ru/strik?utm_term=bird+tower+of+god PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4368964/normal_5f885f3e256f2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404738/normal_5fb8e97161181.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373259/normal_5f8c656353faf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481699/normal_5fb61bc245c1c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://s3.amazonaws.com/foneniz/kedaguripam.pdfIn PDF document text
    • https://s3.amazonaws.com/loranoduzuja/lagu_didi_kempot_ambyar.pdfIn PDF document text
    • https://s3.amazonaws.com/takurugilij/tezavebufoke.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf549b9d793648408502fe/1606374555776/88569154281.pdfIn PDF document text
    • https://s3.amazonaws.com/divelikubapiwaj/dekuvolupabekorukemajuj.pdfIn PDF document text
    • https://s3.amazonaws.com/jevedijadiki/gidedemifobusepegikosufef.pdfIn PDF document text
    • https://s3.amazonaws.com/netinuwa/38900868589.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
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 9

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c6b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6B0 5636 bytes
SHA-256: 0951c5937f7440501c389851caad2f6aed7ba434aedd4204f0589f7ad241b624
font_01_sfnt_off0000da36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA36 4796 bytes
SHA-256: 8852e5bb6d3dbd243c4d36f3319db772f7b9dcb9f79502479963f2ce5e777200
font_02_sfnt_off0000eaac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAAC 2656 bytes
SHA-256: dbaab8dcf32bfe64cb008f34eb54f5316f62236e8dffe3de49b44225404383a5
font_03_sfnt_off0000f5b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5B0 2328 bytes
SHA-256: 864cbe2c6973b44d2b71e19ffbffb2328dcb3759b07ceb43c11d5a372fc4956d
font_04_sfnt_off00010066.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10066 2108 bytes
SHA-256: d117309382da938f7dffedc42f90dd4217b4d540d75629b80669d975ecbc171e
font_05_sfnt_off00010a31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A31 5848 bytes
SHA-256: 8f090a63e2f3614e2e38437a76406f0ffee9afa4e8d825c0cd40b5f01c6b3fbf
font_06_sfnt_off000118e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118E5 10916 bytes
SHA-256: f003b33c36482fbca42bc8c14611a425fc5e1f172032917840bb17e751006132
font_07_sfnt_off00013e10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13E10 16652 bytes
SHA-256: 7a9c5fb7eeb4649bbd2e4829a82ec4878e04ce1a731831e195831218810fb264
font_08_sfnt_off0001553e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1553E 6072 bytes
SHA-256: 80a11fb674e6610d1980555f1f987a006bf1d1b3addd76232809a762453576c8

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