Malicious PDF — malware analysis report

Static analysis result for SHA-256 10934519fdb199c3…

MALICIOUS

PDF

48.7 KB Created: 2020-10-25 19:45:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: acbd47a3181060b4e0493bf942fd7b03 SHA-1: 13ed581ea61f949d4b1e8edc5b49bbdd4e8b400b SHA-256: 10934519fdb199c3c1961d31f6f4620eedd78105a289a064fbc98e5140f1f2c9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains embedded links, one of which points to a known malicious redirector. The document body and heuristics indicate a social engineering lure, specifically a browser extension or update installation lure, to trick users into clicking the malicious link. The presence of numerous external PDF links suggests a link farm, likely for SEO manipulation or to distribute further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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://ttraff.ru/123?keyword=cyberflix+2+apk+for+android
    • https://cdn-cms.f-static.net/uploads/4366976/normal_5f87aab6eca08.pdf
    • https://cdn-cms.f-static.net/uploads/4402488/normal_5f90e1701a3e7.pdf
    • https://mumixopid.weebly.com/uploads/1/3/1/8/131872042/wuwibodad_reroraja_vilumubivemulif_kapedob.pdf
    • https://meboguvogo.weebly.com/uploads/1/3/1/4/131437667/a8fa3155.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/63448717-f9c1-4da1-b58e-3e6441a08362/zigolijepana.pdf
    • https://uploads.strikinglycdn.com/files/244cf664-ae6a-4cec-aa41-3ba55f869a5a/pathfinder_blood_of_the_sea.pdf
    • https://uploads.strikinglycdn.com/files/9fbf7f6c-bfe1-4d52-a251-94ef4f7627ee/tumawejoxofemakojefab.pdf
    • https://uploads.strikinglycdn.com/files/85e5ee1c-f583-48c2-8064-f44d1b8d677b/41809527891.pdf
    • https://s3.amazonaws.com/wuniku/xuramaris.pdf
    • https://s3.amazonaws.com/wuzalugiseto/4407420258.pdf
    • https://s3.amazonaws.com/zifozujiwi/oxford_dictionary_full.pdf
    • https://cdn.shopify.com/s/files/1/0496/1783/0052/files/jenisarimaxakunazutixosa.pdf
    • https://cdn.shopify.com/s/files/1/0266/8409/6700/files/35201909205.pdf
    • https://cdn.shopify.com/s/files/1/0266/9412/3720/files/red_haired_characters_turned_black.pdf
    • https://cdn.shopify.com/s/files/1/0465/0552/5398/files/caesars_palace_parking.pdf
    • https://cdn.shopify.com/s/files/1/0499/2991/2488/files/abecedario_en_frances_para_nios.pdf
    • https://uploads.strikinglycdn.com/files/0b981faf-9bdf-489a-9903-6481f1a3a5d7/popoxawodagugixik.pdf
    • https://uploads.strikinglycdn.com/files/f528eacd-64c1-4974-ba6a-21bb893c3b80/71822482886.pdf
    • https://uploads.strikinglycdn.com/files/8c665d91-75e8-4742-b207-9945f5d8b2d8/gasujovurob.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065e7.bin
cdb7c2d67a577ca177f7cf118b022410548a61f5dddfaaaeb4895419e0fe0b11		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65E7 5096 bytes
font_01_sfnt_off00007743.bin
9fcfd2b2c12c9d480c0beec3ee39f05b9e518edc5177a7a5fcc68dff0371f8a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7743 2092 bytes
font_02_sfnt_off000080e4.bin
7975e2f458f26216713584ef525576e97d39ab832d7360c0ce538f7e0d6195fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80E4 11480 bytes
font_03_sfnt_off0000a6d0.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA6D0 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.