Malicious PDF — malware analysis report

Static analysis result for SHA-256 625ca6b4b7794929…

MALICIOUS

PDF

43.4 KB Created: 2020-08-14 22:23:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d2c34eae78c22ca9c6c9decc6ef7ac06 SHA-1: f474ac4f10dfe86941ec08fafccd85d569a85ba8 SHA-256: 625ca6b4b779492992abf9bf16a5e4d007849698d42b20972ede928c25250222
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, with one identified as a malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' and 'PDF_SEO_LINK_FARM' indicate a high likelihood of this document being used for malicious purposes, such as phishing or distributing further malware. The ML classifier also strongly flagged this PDF as malicious.

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.cc/pify?keyword=aladdin+game++mac
    • http://files.windwardtoeden.com/uploads/1/3/0/7/130776131/geronebiziziranilu.pdf
    • http://zurofatol.therebloomsagarden.com/uploads/1/3/1/6/131636648/buzusafuferumawa.pdf
    • http://jasufino.rfid-off.com/uploads/1/3/0/8/130813604/xoligixivugi.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0431/7511/6959/files/80233089132.pdf
    • https://cdn.shopify.com/s/files/1/0429/2175/4787/files/93487530575.pdf
    • https://cdn.shopify.com/s/files/1/0431/1361/1413/files/outlaw_rogue_icy_veins.pdf
    • https://cdn.shopify.com/s/files/1/0431/5044/2652/files/wazej.pdf
    • https://cdn.shopify.com/s/files/1/0433/8515/9845/files/tobila.pdf
    • https://cdn.shopify.com/s/files/1/0431/3461/5719/files/21726030978.pdf
    • https://cdn.shopify.com/s/files/1/0428/0044/7655/files/buzisosi.pdf
    • https://cdn.shopify.com/s/files/1/0439/5696/1438/files/26201655925.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/67572949107.pdf
    • https://cdn.shopify.com/s/files/1/0438/1625/5645/files/batch_script_windows.pdf
    • https://cdn.shopify.com/s/files/1/0430/4591/2727/files/sopakemovi.pdf
    • https://cdn.shopify.com/s/files/1/0429/8804/4447/files/lesekiwuwumivepawuvezese.pdf
    • https://cdn.shopify.com/s/files/1/0432/0890/0768/files/dawajuranuxidifusumoxija.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_off00005e3d.bin
ca0bee0807c2956c65448b7afaadedbcd6edfa474d981ef7fd750bed42b78501		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E3D 4572 bytes
font_01_sfnt_off00006d9d.bin
7fc473495e4429084c744c0ee6932baf3da81df89ec2af0f1234b8834aed34e5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D9D 10900 bytes
font_02_sfnt_off000092da.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x92DA 4324 bytes

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