Malicious PDF — malware analysis report

Static analysis result for SHA-256 153dd878ac9af21b…

MALICIOUS

PDF

55.1 KB Created: 2020-08-16 00:47:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 213ed493f357c02cd8be79aeebb56229 SHA-1: 447d25673f628f7563f8f8079374f3f7dcbc4ce1 SHA-256: 153dd878ac9af21b69c599b20f9b19f38eede003b0e628e429d2c9a2e84a505a
154 Risk Score

Malware Insights

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

The PDF contains a link that redirects to malicious infrastructure, identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The document body and embedded URLs suggest a phishing lure related to developer logins, likely intended to trick users into visiting a compromised site. The presence of numerous external PDF links also indicates a link farm, potentially for SEO manipulation or to host further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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.com/pify?keyword=android+app+store+developer+login
    • http://files.gardenspotrentals.net/uploads/1/3/2/6/132681938/finefenusavat.pdf
    • http://zofovef.celticfairepdx.com/uploads/1/3/2/6/132681670/3b5ed85262944.pdf
    • http://wudupaje.providencevc.com/uploads/1/3/1/6/131637016/818b4f7.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.opentle.org
    • https://cdn.shopify.com/s/files/1/0432/0156/0737/files/nakisene.pdf
    • https://cdn.shopify.com/s/files/1/0428/6971/9196/files/wekalixizijapajenefadofa.pdf
    • https://cdn.shopify.com/s/files/1/0434/4106/2040/files/sujubidab.pdf
    • https://cdn.shopify.com/s/files/1/0433/7251/1386/files/xufitipuvidep.pdf
    • https://cdn.shopify.com/s/files/1/0434/0816/2974/files/38115622360.pdf
    • https://cdn.shopify.com/s/files/1/0438/2579/1138/files/antigona_sofocles_descargar.pdf
    • https://cdn.shopify.com/s/files/1/0432/2436/7262/files/business_english_conversation_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49816413057.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23342697578.pdf
    • https://cdn.shopify.com/s/files/1/0428/2161/5775/files/common_core_math_worksheets_1st_grade_free.pdf
    • https://cdn.shopify.com/s/files/1/0436/8374/1849/files/17659042737.pdf
    • https://cdn.shopify.com/s/files/1/0433/1870/6331/files/bird_box_book.pdf
    • https://cdn.shopify.com/s/files/1/0430/1848/5923/files/drake_and_josh_go_hollywood_full_movie.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/91960476686.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://www.gnu.org/licenses/gpl.html

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e01.bin
0ddef5c438e278fd077c80fe5b33346755c95fecd199a2981213b77bc3ea1a8f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E01 13972 bytes
font_01_sfnt_off00008afd.bin
51bd0bedf63d5d2c2611edb40608094d312784a1ee67d7a646453e39912dbeaa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8AFD 5176 bytes
font_02_sfnt_off00009ca3.bin
7a02da73c5ff24218d04b188db7d31ceb9303d5dedd43b645f18a615a19d9b6a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9CA3 6068 bytes
font_03_sfnt_off0000ac54.bin
628a6601cc018eb19647445cc8b483ed02ab7db350b6b1ee9665e708ced0e437		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAC54 10044 bytes

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