Malicious PDF — malware analysis report

Static analysis result for SHA-256 eac08e88e845b95c…

MALICIOUS

PDF

86.7 KB Created: 2021-03-19 02:13:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bf9ab52b77e050468062b9127f5e5ed2 SHA-1: db18354c841947a0eef8e7d5398722a6c4610480 SHA-256: eac08e88e845b95cc4dfed114b152ab1a17fdb64e985d2716ebd57d78611dd74
176 Risk Score

Malware Insights

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

The PDF contains numerous external links, identified as a link farm, suggesting an attempt to direct users to malicious websites. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a malicious document designed to exploit user curiosity for malicious purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

Heuristics 6

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://mezovuduw.ru/wix?keyword=conversations+with+god+book+3+pdf+download
    • https://pemogele.weebly.com/uploads/1/3/5/3/135324676/fidavubaza.pdf
    • https://goxezisofira.weebly.com/uploads/1/3/4/8/134887941/1165427.pdf
    • https://pufukowog.weebly.com/uploads/1/3/4/5/134583281/4fdbef5ca3b351.pdf
    • https://nefirekemoziwep.weebly.com/uploads/1/3/4/3/134332842/tuzadov-purewokaj-lanixir.pdf
    • https://viramerobudob.weebly.com/uploads/1/3/1/4/131483281/jenuworawof.pdf
    • https://lanufuxag.weebly.com/uploads/1/3/0/9/130969896/meponivowidowu_kimukomeboxit_pixidoz.pdf
    • https://jadotonevuwupu.weebly.com/uploads/1/3/1/4/131407011/1c580d.pdf
    • https://voxalasodakuro.weebly.com/uploads/1/3/4/0/134042561/kalesop.pdf
    • http://kexolifowuj.medianewsonline.com/architecture_magazine_download.pdf
    • http://zisuroto.mygamesonline.org/what_is_the_nypd_physical_test.pdf
    • https://meverelalopabij.weebly.com/uploads/1/3/4/1/134108836/6049f3bad058f.pdf
    • https://vejanozamafiz.weebly.com/uploads/1/3/5/3/135351199/wekupav-rixisipedujif-vonevarirod.pdf
    • https://rinuvigilositu.weebly.com/uploads/1/3/4/4/134463450/10d730e30.pdf
    • https://vunidiripoga.weebly.com/uploads/1/3/1/4/131453449/5c951a7.pdf
    • https://nepokotivo.weebly.com/uploads/1/3/2/8/132814168/4392396.pdf
    • https://sexitikimuzulab.weebly.com/uploads/1/3/5/2/135296232/giguwadiwa_damaketujuli_wanibebebetawo.pdf
    • https://zogudoweno.weebly.com/uploads/1/3/1/6/131637773/4b5dfc15f331a.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://rewuwuja.onlinewebshop.net/cecropia_peltata.pdf
    • http://zuputes.atwebpages.com/xigukogagufalejodi.pdf
    • https://uploads.strikinglycdn.com/files/777f7a6c-3cad-450c-9d4d-11ff3d1dd7f0/9504291144.pdf
    • https://uploads.strikinglycdn.com/files/e46987cd-5835-4bd1-b665-5d5387d2e96c/bewejiva.pdf
    • https://uploads.strikinglycdn.com/files/d700cf17-e483-4fe1-a0f1-c92d7e43a169/41801793212.pdf
    • https://uploads.strikinglycdn.com/files/4d249168-2425-4f26-a661-7aea515ec164/74026565344.pdf
    • https://uploads.strikinglycdn.com/files/aff0f887-09b7-454c-944e-7213e666ea28/how_do_i_charge_my_beats_studio_3_headphones.pdf
    • https://uploads.strikinglycdn.com/files/9bd7fa1d-f193-418b-9144-3affbff07748/33004751616.pdf
    • http://mojogoralil.onlinewebshop.net/tl-wpa4220_kit_setup.pdf
    • https://uploads.strikinglycdn.com/files/75a5001b-575d-4af5-ba46-99878d26edfe/vokixotinolexufakudebepur.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fbdb.bin
7654fbe3c9c40eec2464c2dcd542b3c17465ae1cd1c13ade307e2c4c22aee02c
pdf-font-stream PDF embedded font (sfnt) at offset 0xFBDB 5728 bytes
font_01_sfnt_off00010f64.bin
e959bc61260d22fe49a2327b20c8fdd4447872995ae133064793d368147e0df9
pdf-font-stream PDF embedded font (sfnt) at offset 0x10F64 11460 bytes
font_02_sfnt_off000135cc.bin
503f5200e83b189a546b6c6e1d808633a9135186956fe76ff9bd78de3d91e3c6
pdf-font-stream PDF embedded font (sfnt) at offset 0x135CC 16060 bytes