Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6060a922c45e221…

MALICIOUS

PDF

44.5 KB Created: 2020-08-11 08:48:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 00f74037925eb642bb7e07f1e47bf8a7 SHA-1: 4e1cb4249fdff12af3df08d47ac0ed44674c427c SHA-256: f6060a922c45e2211268f44049843eccc4a0780e17d5286337504fcb2000ff54
150 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.com, which is likely used to obscure the final destination of the malicious payload. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary lure. The presence of numerous other PDF links hosted on Shopify further indicates a link farm or SEO poisoning attempt to attract victims. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.com/pify?keyword=makalah+aborsi+lengkap+pdf
    • http://files.bcompany4thinfantry.com/uploads/1/3/2/7/132710659/soxika.pdf
    • http://files.saintsugaroflondon.com/uploads/1/3/2/3/132302824/b79b0.pdf
    • http://files.pokeberryexchange.com/uploads/1/3/1/4/131482952/basukifovopopozol.pdf
    • http://files.fetrowphotography.com/uploads/1/3/0/9/130969424/suxobejodagitejavewo.pdf
    • http://files.travelwithkalsi.com/uploads/1/3/0/7/130739974/6228628.pdf
    • https://cdn.shopify.com/s/files/1/0429/8866/7033/files/vitarajizupibinabi.pdf
    • https://cdn.shopify.com/s/files/1/0432/5166/3012/files/35512074912.pdf
    • https://cdn.shopify.com/s/files/1/0434/5492/2902/files/kexijaxaleduxubiv.pdf
    • https://cdn.shopify.com/s/files/1/0428/3459/1907/files/86393203264.pdf
    • https://cdn.shopify.com/s/files/1/0431/5879/8492/files/xufumugedewomepelidatof.pdf
    • https://cdn.shopify.com/s/files/1/0430/3319/8745/files/17179471219.pdf
    • https://cdn.shopify.com/s/files/1/0428/7240/6179/files/55442260008.pdf
    • https://cdn.shopify.com/s/files/1/0434/0750/7606/files/kowokiv.pdf
    • https://cdn.shopify.com/s/files/1/0435/5037/6100/files/lulixomewusunexisu.pdf
    • https://cdn.shopify.com/s/files/1/0436/4979/4213/files/libros_para_aprender_frances_para_nios.pdf
    • https://cdn.shopify.com/s/files/1/0432/4658/3976/files/laryngopharyngeal_reflux_treatment.pdf
    • https://cdn.shopify.com/s/files/1/0429/1392/3228/files/catastrophe_naturelle_dfinition.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/
    • https://cdn.shopify.com/s/files/1/0431/5879/8492/files/xufumugedewome

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000070a0.bin
dd6451373d2d87a75992969bd30f420ba9c967e3658c416051a92fb4e57a3b7a
pdf-font-stream PDF embedded font (sfnt) at offset 0x70A0 5512 bytes
font_01_sfnt_off0000834b.bin
52d60977dc3ac7f03e7e6e57f83a8ea72b00876eb7f40e0dfdb00605a1081397
pdf-font-stream PDF embedded font (sfnt) at offset 0x834B 10004 bytes