Malicious PDF — malware analysis report

Static analysis result for SHA-256 c080b5b7de18e7ea…

MALICIOUS

PDF

93.2 KB Created: 2020-08-26 10:33:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 86163063400d9c83c632eef22afbd327 SHA-1: 52e80cc609fecc292fd23555cb79e43f11686a21 SHA-256: c080b5b7de18e7eac5d37ed89df1f9a7384ac24e49bf407e2cfd6a9bb43cfc04
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Black clover episode 52 release date' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of numerous external PDF links further indicates a link farm or redirection strategy.

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=black+clover+episode+52+release+date
    • http://files.rochonlab.ca/uploads/1/3/2/6/132695932/gedifiwekizu.pdf
    • http://files.njaje.org/uploads/1/3/2/8/132814272/1775429.pdf
    • http://files.sounddesignstudio.net/uploads/1/3/0/7/130739631/larofuwatek_jagoxisizejaz.pdf
    • http://viwasi.rebuildersspecialty.com/uploads/1/3/0/7/130775413/dovibokuzowe_xuxifan.pdf
    • http://files.adorableponyparties.com/uploads/1/3/2/6/132681513/xaxugosiro-sizebifu-pipobotu-tosibuko.pdf
    • https://cdn.shopify.com/s/files/1/0438/0937/4365/files/55527578317.pdf
    • https://cdn.shopify.com/s/files/1/0431/8678/2369/files/sufixajekemivisokenujuwo.pdf
    • https://cdn.shopify.com/s/files/1/0431/0840/1316/files/litcharts_huck_finn.pdf
    • https://cdn.shopify.com/s/files/1/0438/7821/9944/files/xijisanilu.pdf
    • https://cdn.shopify.com/s/files/1/0437/1818/1016/files/macos_preview_reduce_size.pdf
    • https://cdn.shopify.com/s/files/1/0433/9856/1957/files/alagappan_book_download.pdf
    • https://cdn.shopify.com/s/files/1/0440/6778/2821/files/68597919671.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32377204601.pdf
    • https://cdn.shopify.com/s/files/1/0431/9661/2768/files/verbs_of_senses_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0432/8544/6822/files/94985774880.pdf
    • https://cdn.shopify.com/s/files/1/0433/4547/7800/files/60144486888.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
stream_004_off0000b0e5.bin
05c4fefcb40c7364b9f49d231408da9512072c25f5c5e2a7cc79d63823ef5f48
decompressed-pdf-stream PDF FlateDecoded stream at offset 0xB0E5 36320 bytes
font_01_sfnt_off00012264.bin
8d87dd0ff589ce449d7b5b9d96b334ebd7f5c4ed18da919e7115234946d08caf
pdf-font-stream PDF embedded font (sfnt) at offset 0x12264 5496 bytes
font_02_sfnt_off00013525.bin
607b7cc5f6512099655099095282e12a2976a992937ba4b78f92bf9a24625472
pdf-font-stream PDF embedded font (sfnt) at offset 0x13525 16480 bytes