Malicious PDF — malware analysis report

Static analysis result for SHA-256 eeb60fb71c6fceeb…

MALICIOUS

PDF

41.9 KB Created: 2020-08-05 08:54:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1b0038c090f0e7cf1e705e7e2280dcc0 SHA-1: 95164002e44fba69db3e5a881343cee3f8627988 SHA-256: eeb60fb71c6fceeb47145a3868201521a1a6920a2d5ec4b4bc5027db945f2416
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains multiple embedded links, with a critical heuristic identifying a redirector link to 'ttraff.com'. This suggests the document is designed to lure users to malicious sites. The ML classifier also strongly indicated maliciousness. The document body contains obfuscated text and the target URL, reinforcing the malicious intent.

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=fungsi+manajemen+actuating+pdf
    • http://files.readwritebake.com/uploads/1/3/1/3/131380895/bejajifel.pdf
    • http://disavux.ezivase.com/uploads/1/3/0/7/130775320/kizanikipilefosuz.pdf
    • http://files.tricitykempokarate.com/uploads/1/3/2/8/132815004/xilola-ditakefibowez-tubefasol-fugijilax.pdf
    • https://cdn.shopify.com/s/files/1/0433/0258/4480/files/votebeluserafoxikapoveze.pdf
    • https://cdn.shopify.com/s/files/1/0432/4098/0643/files/18974443879.pdf
    • https://cdn.shopify.com/s/files/1/0429/1851/0745/files/filexixu.pdf
    • https://cdn.shopify.com/s/files/1/0429/8909/3018/files/18134792143.pdf
    • https://cdn.shopify.com/s/files/1/0427/7354/5116/files/12080664645.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zaxolaxowixinetubosi.pdf
    • https://cdn.shopify.com/s/files/1/0435/1390/5311/files/ledifasekozidapo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/72905654063.pdf
    • https://cdn.shopify.com/s/files/1/0445/6821/5716/files/basel_3_file.pdf
    • https://cdn.shopify.com/s/files/1/0437/4423/1575/files/81125692937.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000066d6.bin
30d07c5ccdd159bf929f79491250888569166b9ae02deb1de1f9696f2467f075
pdf-font-stream PDF embedded font (sfnt) at offset 0x66D6 5376 bytes
font_01_sfnt_off00007922.bin
f903375b21ec585d7948aaa523466220d1e14fd5a4cbe063d25fc7e4a647332d
pdf-font-stream PDF embedded font (sfnt) at offset 0x7922 9996 bytes