Malicious PDF — malware analysis report

Static analysis result for SHA-256 223363970ff3abd9…

MALICIOUS

PDF

45.3 KB Created: 2020-10-25 13:43:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6e4ceb138b1c887fe2698c4afd8f06d9 SHA-1: 5bebf4f46d2d69dc1fd8941bcc960b436a6c7795 SHA-256: 223363970ff3abd9de071576fa15b00aea0247fcebb9e337dffe26e017eb2800
154 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for linking to known malicious redirector infrastructure, specifically the URL https://gettraff.ru/123?keyword=manette+xbox+one+android. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs pointing to external resources. The ML classifier also strongly indicated maliciousness. These factors suggest the document's primary purpose is to redirect users to malicious sites, potentially for phishing or malware distribution.

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://gettraff.ru/123?keyword=manette+xbox+one+android
    • https://cdn-cms.f-static.net/uploads/4365627/normal_5f8704dbe3e1d.pdf
    • https://cdn-cms.f-static.net/uploads/4368235/normal_5f912343575a3.pdf
    • https://cdn-cms.f-static.net/uploads/4414336/normal_5f949431d863c.pdf
    • https://cdn-cms.f-static.net/uploads/4372972/normal_5f8e3888180b4.pdf
    • https://xavoxoxuda.weebly.com/uploads/1/3/1/3/131379246/goved_sajed.pdf
    • https://buliduxefexefux.weebly.com/uploads/1/3/1/6/131636978/4354840.pdf
    • https://mufalugibesenu.weebly.com/uploads/1/3/1/4/131453255/zojajubapejer.pdf
    • https://tidovikazixuwuj.weebly.com/uploads/1/3/4/3/134316919/4025464.pdf
    • https://wepugimi.weebly.com/uploads/1/3/1/0/131070973/6276840.pdf
    • https://cdn-cms.f-static.net/uploads/4374537/normal_5f93622d294f1.pdf
    • https://cdn-cms.f-static.net/uploads/4366654/normal_5f8735138d6af.pdf
    • https://cdn-cms.f-static.net/uploads/4369491/normal_5f8aea040462c.pdf
    • https://cdn-cms.f-static.net/uploads/4382948/normal_5f8f42410e7b2.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/zomuzigo/31519499152.pdf
    • https://s3.amazonaws.com/kavitokolezub/99980710751.pdf
    • https://s3.amazonaws.com/tetazino/xonigumoximiwogasexigi.pdf
    • https://s3.amazonaws.com/gavexilatuvitaz/vda_fmea_handbook.pdf
    • https://s3.amazonaws.com/pugomonapoxuxe/wupikalojikadozuxo.pdf
    • https://s3.amazonaws.com/jiwisigetizoxif/25415321330.pdf
    • https://s3.amazonaws.com/zuxadol/afinidade_eletronica.pdf
    • https://cdn.shopify.com/s/files/1/0434/9699/7030/files/free_online_virus_scan_for_android.pdf
    • https://cdn.shopify.com/s/files/1/0484/0541/4045/files/google_drive_apk_android.pdf
    • https://cdn.shopify.com/s/files/1/0498/5441/5015/files/exide_battery_charger_manual_10900.pdf
    • https://cdn.shopify.com/s/files/1/0266/9261/6379/files/haier_twin_tub_washing_machine_manual.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006625.bin
7fb56b610300d00cd0568d2d7d2c7bf62c0353fe6bdd62113f05bde1d4c77531		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6625 4608 bytes
font_01_sfnt_off000075d8.bin
b019f02f5a6a4d203753487f372dc48489be501dbc3d3a7c74447c78c6eb7b06		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75D8 10380 bytes
font_02_sfnt_off00009954.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9954 4324 bytes

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