PDF malware analysis — malicious · 5f7680576a76506a

MALICIOUS

PDF

73.3 KB Created: 2021-03-29 22:54:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a078c9fa20c15aaf01ba2c0df3f41871 SHA-1: 490eedfad19a29695298c2876f02f5d3cad6858e SHA-256: 5f7680576a76506a6426e1229ea29ab94fecddb85eaed7dc5801c93f7f516cef

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file was detected as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URI pointing to a URL that appears to be a lure for downloading files, likely to distribute malware or conduct phishing. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

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://golowaki.ru/award?keyword=email+writing+samples+pdf+free+download
- https://cdn.sqhk.co/manowipete/g9fDXha/1010_colorado_st._austin_tx.pdf
- https://cdn.sqhk.co/sasimidiweg/ifhbhib/suwedoxanoverabub.pdf
- http://rasezatoxefu.mygamesonline.org/doputobifiwaxo.pdf
- https://cdn.sqhk.co/semiwewedazi/hbDAjb7/vidmate_apk_for_pc_install.pdf
- https://cdn-cms.f-static.net/uploads/4424666/normal_6031932e87301.pdf
- https://cdn-cms.f-static.net/uploads/4453747/normal_600cb63647f2c.pdf
- http://tezibif.mygamesonline.org/56735708766.pdf
- https://cdn.sqhk.co/befozaxulot/biaigU0/zusasozudozoxebome.pdf
- http://xagixowedobosab.medianewsonline.com/85540024448.pdf
- https://cdn-cms.f-static.net/uploads/4423429/normal_5fdc135b373ea.pdf
- https://cdn.sqhk.co/wekaradukuve/ZZQggib/de_olho_na_moda_boutique_corumbaiba.pdf
- https://cdn.sqhk.co/gejixoneku/gwicifo/zalusagonefapobipimovak.pdf
- http://lamaded.mywebcommunity.org/pediboponebubugama.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://bagemok.epizy.com/cd4011be_datasheet.pdf
- http://nirepuxakidogu.rf.gd/cj_logistics_annual_report_2018.pdf
- https://s3.amazonaws.com/lumixi/21305776257.pdf
- https://s3.amazonaws.com/budovewesekaz/rival_electric_food_slicer_1030v_6.pdf
- http://kodabaguditu.rf.gd/biotecnologia_industrial_volume_1.pdf
- http://fumejiwa.epizy.com/49542230730.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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e243.bin` `9b84aad6634704bce600c79e15f8e7d605ad6ba755265c823905c3ad16bfb509`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE243	5412 bytes
`font_01_sfnt_off0000f4a5.bin` `e36480dbf62366b5b89e70b0c11d50b18c50bf7d0b4d731647903dd4c074a3bd`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF4A5	10268 bytes

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