Malicious PDF — malware analysis report

Static analysis result for SHA-256 8bc11085212debd6…

MALICIOUS

PDF

45.1 KB Created: 2020-08-24 10:21:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7c7d60f3ee9553d1b01a524857882f98 SHA-1: 3b5a68101e737b1ce037a4c402a03c276c39bc1b SHA-256: 8bc11085212debd6826f817d117d484bc721c97fa53268adfb9b69f7822d8d32
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link to a known malicious redirector, ttraff.cc, disguised as an authorized recipient form. This redirector likely leads to a malicious payload. The PDF also contains a large number of embedded links, many pointing to Shopify domains, which is characteristic of SEO link farm abuse to obscure the final malicious destination. No scripts were extracted, but the primary attack vector is the malicious URL embedded within the document.

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=authorized+recipient+form+956
    • http://files.newsunyoga.co.uk/uploads/1/3/0/8/130815026/popezutupa.pdf
    • http://files.yogakatalyst.com/uploads/1/3/1/0/131069934/fupokezibike.pdf
    • http://dukuzif.fendragonsandmore.com/uploads/1/3/1/8/131856907/xusiri.pdf
    • http://files.downstageimages.com/uploads/1/3/1/4/131454459/1256576.pdf
    • https://cdn.shopify.com/s/files/1/0427/7148/0742/files/running_man_eng_sub.pdf
    • https://cdn.shopify.com/s/files/1/0434/8359/4909/files/35415017578.pdf
    • https://cdn.shopify.com/s/files/1/0431/9212/3560/files/47683092247.pdf
    • https://cdn.shopify.com/s/files/1/0433/4203/7150/files/fokadibaxewale.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/46391305542.pdf
    • https://cdn.shopify.com/s/files/1/0428/3426/4231/files/bemamukiwedanidorodowom.pdf
    • https://cdn.shopify.com/s/files/1/0431/1315/2673/files/altium_designer_18_guide.pdf
    • https://cdn.shopify.com/s/files/1/0429/5891/3689/files/82283759541.pdf
    • https://cdn.shopify.com/s/files/1/0431/0574/7108/files/guia_mexicana_asma_2020.pdf
    • https://cdn.shopify.com/s/files/1/0436/9442/4232/files/33600994276.pdf
    • https://cdn.shopify.com/s/files/1/0438/1730/4226/files/zukepomagifaxetas.pdf
    • https://cdn.shopify.com/s/files/1/0434/8307/0630/files/how_to_port_forward_spectrum.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_off000065f8.bin
7396fbaa31c8b917d9340c34bd4594c6de065d8998bf6e7837907f28a949ffce
pdf-font-stream PDF embedded font (sfnt) at offset 0x65F8 5332 bytes
font_01_sfnt_off000077fb.bin
69651ac00012265c16b00194b432463336c53d12d75b8845789975e8ba3058b3
pdf-font-stream PDF embedded font (sfnt) at offset 0x77FB 9712 bytes
font_02_sfnt_off00009943.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0x9943 4324 bytes