Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f41eeb1901a9e23…

MALICIOUS

PDF

91.5 KB Created: 2020-09-06 22:33:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e356057786d1df7874c427aba4500fe3 SHA-1: 4b507148397d80a5614fe4686fc3746f0b41a6fe SHA-256: 7f41eeb1901a9e230c267967eb25f9354122999676e56c8f1e44af96d44ab7a6
162 Risk Score

Malware Insights

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

The PDF contains embedded links, one of which, 'https://ttraff.me/wix?keyword=american+war+full+movie', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains similar text, suggesting a lure to entice users to click the malicious link. The presence of numerous other PDF links further indicates a link farm or redirection strategy, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.me/wix?keyword=american+war+full+movie
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0433/2303/1720/files/clash_of_clans_hack_ipad.pdf
    • https://cdn.shopify.com/s/files/1/0431/0728/7206/files/giserara.pdf
    • https://cdn.shopify.com/s/files/1/0437/0356/6486/files/90324774003.pdf
    • https://cdn.shopify.com/s/files/1/0431/5856/9128/files/tunanezuritukevinazar.pdf
    • https://static.usrfiles.com/ugd/b8c837_fdc939491d92479f8f9e78a9789a4662.pdf
    • https://static.usrfiles.com/ugd/b8c837_8b93aab9b6534946a35ba9b8ba8cb8e9.pdf
    • https://static.usrfiles.com/ugd/bdc04d_bcc9184444de4781b03e9188bef61a9c.pdf
    • https://static.usrfiles.com/ugd/f9d4cd_bae76bf631aa4c728e8d2bbe729731cb.pdf
    • https://static.usrfiles.com/ugd/72216b_ffe612c674014341bbc6f5e791176d4e.pdf
    • https://static.usrfiles.com/ugd/b8c837_e1e15348104e4cf1a43f89dd17fac07f.pdf
    • https://static.usrfiles.com/ugd/2f8cea_5c26b12ded7a499c9fcdb6f24b0f6e07.pdf
    • https://static.usrfiles.com/ugd/ea2f88_df74486749bf439cad3050b925784b2e.pdf
    • https://static.usrfiles.com/ugd/74a852_ae5da64a965e46b8aca6c2a865ec9c17.pdf
    • https://static.usrfiles.com/ugd/a838c0_14c9fad5f2984aa7a55efa7857111a3b.pdf
    • https://static.usrfiles.com/ugd/3ce946_5f7dc35d0ed449f0afa39a7f43024224.pdf
    • https://static.usrfiles.com/ugd/576447_f77263197675457cbb1f07163f7cc167.pdf
    • https://static.usrfiles.com/ugd/d775a9_b49326147c1e45e0adf711fbd91aa099.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_off00012009.bin
a1dc6c9a42b43fdb740c4fb337fd203f6082baf48ba598831604efd74010e0a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12009 4792 bytes
font_01_sfnt_off0001303c.bin
255b814e32400a94f50da19971aac387de567a110ef18e15c906f755a3c079ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1303C 10120 bytes
font_02_sfnt_off000152df.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x152DF 4324 bytes

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