Malicious PDF — malware analysis report

Static analysis result for SHA-256 be43256baaa0d18b…

MALICIOUS

PDF

69.3 KB Created: 2020-10-28 23:44:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: f6d8c7192fadf0ab966ab46398e42df1 SHA-1: 3efe3303169ff989a997b7fc7dba2e5f0989d0ac SHA-256: be43256baaa0d18b8ef386db8568d6ec0ace3cb0fc56e7c7d9b84a8b32d3f696
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains numerous embedded links, with a significant portion pointing to known malicious redirector infrastructure and disposable hosting. The primary malicious URL identified is 'https://ggtraff.ru/strik?keyword=i+have+a+lover+episode+34+facebook', which is flagged as a malicious redirector. The document's structure and extensive link farm suggest an attempt to lure users to malicious sites, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://ggtraff.ru/strik?keyword=i+have+a+lover+episode+34+facebook In PDF document text
    • https://saxibodusazo.weebly.com/uploads/1/3/0/7/130740440/nesujudavima.pdfIn PDF document text
    • https://bupiwuzisulim.weebly.com/uploads/1/3/0/8/130874125/jarutepabun.pdfIn PDF document text
    • https://jikeberu.weebly.com/uploads/1/3/1/8/131857846/pasabijaxobevo-wulevotetig-xixuxit.pdfIn PDF document text
    • https://wirukibit.weebly.com/uploads/1/3/0/9/130969322/8623632.pdfIn PDF document text
    • https://zazusixalug.weebly.com/uploads/1/3/4/4/134491239/a0be0824bb2e6d7.pdfIn PDF document text
    • https://pepotoxuxomupav.weebly.com/uploads/1/3/1/4/131483830/24e248e6e441.pdfIn PDF document text
    • https://furifusopuwebe.weebly.com/uploads/1/3/4/4/134471692/dijukikekakumetede.pdfIn PDF document text
    • https://paripipedaninez.weebly.com/uploads/1/3/4/4/134444050/6536000.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/e9806ec6-ba54-4d80-a648-ed07dcfb711e/99199907043.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/5977/1061/files/yugandhar_marathi_book_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/44c2702f-6c99-4fff-8d31-a6b2c5c3566b/spotify_premium_mod_apk_bagas31.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1731/2152/files/rupert_neve_rndi_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/5453/0197/files/spanish_preterite_exercises.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/43e0b065-df97-4840-b448-57491bf40ad2/2708261403.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3192/8730/files/61562513655.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0558/2244/files/ibn_taymiyyah_books_urdu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/8969/3345/files/lowrance_hds_9_gen2_touch_installation_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6e7c856d-ba8a-4fe2-ac35-942a8e35c03f/psychodynamic_psychiatry_in_clinical_practice.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/683e8708-99c8-49a5-a1d7-619522473c36/yamunai_aatrile_96_song_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7e3a80c4-5af1-4ebd-a8f1-7b3717added1/14374820833.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/7423/9646/files/69908107886.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8077d252-02d7-49f1-b295-1d7508a6125b/21447617951.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0492/8189/2509/files/46321213579.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a177e229-a3a0-40f3-b010-371c19e11ed6/lokovipatodar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5103/1447/files/78705404219.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off0000d204.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xD204 22792 bytes
SHA-256: 2237e6f33ffaf6bf1774939cf889563f74ca2940128d6d14657b0c939b11061b
font_00_sfnt_off000098e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98E1 5300 bytes
SHA-256: 5698d8147d7cb6ec9a653f099884cda454c368169c32b2d46481e3fab4685b6f
font_01_sfnt_off0000aaf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAAF3 11444 bytes
SHA-256: 29b06ccfc2522af6dd3cc89e45448fd7e6b23a4dfad27b501ff7a1dec8cda6ce
font_03_sfnt_off0000f8be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8BE 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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