Malicious PDF — malware analysis report

Static analysis result for SHA-256 3243b089e6b6c80d…

MALICIOUS

PDF

40.1 KB Created: 2020-08-03 22:49:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 853f59dc412e41a040c00bb021b4b299 SHA-1: f7881410e8c1376c01612f0525100df04c2f0381 SHA-256: 3243b089e6b6c80dcf28450653737f22116e11b275adf3c56ca381175ef1a92c
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=jurnal+adsorpsi+pdf'. This indicates the document's primary purpose is to redirect users to potentially harmful content. Additionally, a PDF link farm heuristic suggests the document is part of a larger SEO manipulation effort to distribute malicious links. No scripts were extracted, but the embedded URLs and redirector link are sufficient indicators of malicious intent.

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=jurnal+adsorpsi+pdf
    • http://files.ravenshuskyhavenandrescue.org/uploads/1/3/1/4/131437421/zujewuren-bonamerotisomub-tavifujivo-xotugoji.pdf
    • http://files.seanellishusseycomposer.com/uploads/1/3/1/4/131437599/9663073.pdf
    • http://files.splashoutfitters.com/uploads/1/3/2/6/132682820/vopada-sukaguvo-rozotikasupulo.pdf
    • http://files.anthonysneal.com/uploads/1/3/2/6/132681452/333a1b.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/2857609843.pdf
    • https://cdn.shopify.com/s/files/1/0430/6645/8266/files/zazoxelubunuronufexid.pdf
    • https://cdn.shopify.com/s/files/1/0429/4747/7667/files/wumukisexozakog.pdf
    • https://cdn.shopify.com/s/files/1/0429/1792/0934/files/14611104320.pdf
    • https://cdn.shopify.com/s/files/1/0431/9726/8128/files/gobojofanaxeguxeni.pdf
    • https://cdn.shopify.com/s/files/1/0433/7578/8184/files/publication_manual_of_the_apa.pdf
    • https://cdn.shopify.com/s/files/1/0433/3584/3994/files/62469024719.pdf
    • https://cdn.shopify.com/s/files/1/0433/8669/9925/files/53586761081.pdf
    • https://cdn.shopify.com/s/files/1/0437/4256/0407/files/fiwujesetunerososumunisub.pdf
    • https://cdn.shopify.com/s/files/1/0430/7949/9940/files/murokujevovaxijelisi.pdf
    • https://cdn.shopify.com/s/files/1/0432/6948/8798/files/93477694542.pdf
    • https://cdn.shopify.com/s/files/1/0429/9961/1553/files/90407984390.pdf
    • https://cdn.shopify.com/s/files/1/0436/9406/3770/files/kotopenavosizujigupej.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_off000060bb.bin
886191c404b2f39e5da5f91588d65e565234fb2546827df314283fc246ada37d
pdf-font-stream PDF embedded font (sfnt) at offset 0x60BB 5024 bytes
font_01_sfnt_off000071e0.bin
612c3f073486ef24d1bb8692b788d77531684908bbfdd2b536c6aa0308853009
pdf-font-stream PDF embedded font (sfnt) at offset 0x71E0 9948 bytes