Malicious PDF — malware analysis report

Static analysis result for SHA-256 faeffb7dcc25b5f7…

MALICIOUS

PDF

81.6 KB Created: 2021-04-26 02:00:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aaa292bfbc6d2934c2263203733ea193 SHA-1: b8a5ee5ffd27f1f877d7a23682fe38301a070ac5 SHA-256: faeffb7dcc25b5f72f76cad9b140f038f3120c6cb62f6bd37aa558cf8d20dc8d
96 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and ML classifiers indicated a high probability of maliciousness. The document contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware download site. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to exploit users through social engineering, likely related to the 'apology line podcast spotify' lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://resalured.ru/strik?utm_term=the+apology+line+podcast+spotify
    • http://sixesijilolun.mywebcommunity.org/55575296119.pdf
    • http://carinsusa.com/nier_automata_pc_performancejsr2w.pdf
    • https://cdn-cms.f-static.net/uploads/4370307/normal_6041550611bdc.pdf
    • http://xitabijasava.getenjoyment.net/temuriwetadenaxos.pdf
    • https://duxupapumi.weebly.com/uploads/1/3/1/8/131856851/winiva.pdf
    • http://tublitalia.fun/97987850179pmacp.pdf
    • https://cdn-cms.f-static.net/uploads/4453335/normal_604890a8b5217.pdf
    • http://bepibolet.22web.org/25538749037.pdf
    • https://static.s123-cdn-static.com/uploads/4460060/normal_5fc806b9c452c.pdf
    • http://napodosawukezob.getenjoyment.net/29810344755.pdf
    • https://jilowenuvugema.weebly.com/uploads/1/3/4/8/134897306/5be1b503c28a.pdf
    • https://cdn-cms.f-static.net/uploads/4529977/normal_60209b92ba814.pdf
    • http://lidobexi.22web.org/33972877100.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/tobito/83604819075.pdf
    • https://s3.amazonaws.com/vavale/6098105734.pdf
    • https://s3.amazonaws.com/nalifij/92199924916.pdf
    • https://s3.amazonaws.com/wiwuxot/5341503286.pdf
    • http://wubavon.epizy.com/ijazat_punjabi_song_ringtone.pdf
    • http://xutetutadipuvux.rf.gd/96338042386.pdf
    • http://wobemiko.epizy.com/tipaluvojodutadozobixenam.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f2bd.bin
62d09fbd1a3fd80ef2680b279d0b33b1538cbb87d20c73035bcedad2cda37f89
pdf-font-stream PDF embedded font (sfnt) at offset 0xF2BD 5160 bytes
font_01_sfnt_off00010451.bin
6ac98049d1e75ab880c065c0cd6d5f47cd725cda6bac004451792612b1240a35
pdf-font-stream PDF embedded font (sfnt) at offset 0x10451 11328 bytes
font_02_sfnt_off00012b04.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0x12B04 4324 bytes