Malicious PDF — malware analysis report

Static analysis result for SHA-256 25e8c00a7085c9fc…

MALICIOUS

PDF

58.5 KB Created: 2020-08-08 05:14:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47ebaceef445f59f0be3403eb37c0459 SHA-1: f35e9e7cb16e572ab10e758e4bd429ac811bb938 SHA-256: 25e8c00a7085c9fc172fdc0576d8095f32f7cc66eda9660b93aeb2282924174f
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with one identified as a malicious redirector. The document body, though partially corrupted, contains the string 'https://ttraff.cc/pify?keyword=banalata+sen+pdf', which is also flagged as a malicious redirector. This suggests the primary purpose is to lure the user to a malicious site, likely for phishing or to download further malware. No scripts were extracted, limiting the analysis of specific execution techniques.

Heuristics 3

  • 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.
  • 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=banalata+sen+pdf
    • http://files.diverdief.com/uploads/1/3/1/4/131455680/2a35e0b90ebbd96.pdf
    • http://valemive.dianabeltranherrera.com/uploads/1/3/1/3/131379732/e197f04c42fae24.pdf
    • http://files.cornishsmallholder.com/uploads/1/3/0/7/130740429/7740578.pdf
    • https://cdn.shopify.com/s/files/1/0430/0419/9075/files/pirejaxufixowale.pdf
    • https://cdn.shopify.com/s/files/1/0430/4614/2114/files/12672594481.pdf
    • https://cdn.shopify.com/s/files/1/0434/0498/4483/files/larulapizixujegikedam.pdf
    • https://cdn.shopify.com/s/files/1/0436/1574/8253/files/uniden_bearcat_880.pdf
    • https://cdn.shopify.com/s/files/1/0440/8256/1176/files/13618207315.pdf
    • https://cdn.shopify.com/s/files/1/0428/1086/7871/files/72231806625.pdf
    • https://cdn.shopify.com/s/files/1/0431/6545/0389/files/dreamspark_windows_7.pdf
    • https://cdn.shopify.com/s/files/1/0432/7256/8996/files/honda_fit_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/6055/9013/files/welobibebanojisomamajex.pdf
    • https://cdn.shopify.com/s/files/1/0432/6984/9246/files/55675372209.pdf
    • https://cdn.shopify.com/s/files/1/0432/0945/7825/files/30515252485.pdf
    • https://cdn.shopify.com/s/files/1/0431/0754/9338/files/the_4400_season_5.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007713.bin
d0baa19dd9f81032323ec96d42a90cad47eb7b9a9a88489f3b291ce788e43ced
pdf-font-stream PDF embedded font (sfnt) at offset 0x7713 4988 bytes
font_01_sfnt_off00008821.bin
eccdc077fbe89442201dd477c0d360c4cdfa1d3ac9132a0661537a93dffabff6
pdf-font-stream PDF embedded font (sfnt) at offset 0x8821 11984 bytes
font_02_sfnt_off0000ae16.bin
ce416677c4320097f5271901c0bb2b705016552b8c0e358d38d65d60f25cb11e
pdf-font-stream PDF embedded font (sfnt) at offset 0xAE16 14748 bytes