PDF malware analysis — malicious · 86c4bd54e8da604d

MALICIOUS

PDF

39.0 KB Created: 2020-07-16 14:50:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 3e94ab54df6f8a5a39858c321d91ce35 SHA-1: cd5917fa1c91d1659969c3f9a278ec85c693a10e SHA-256: 86c4bd54e8da604d8ad3f50bdb51d2ca129dcc1a5fa944819c7b7c249db251ea

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wb?keyword=cplex%20python%20reference%20manual'. This URL is presented as a 'Cplex python reference manual' in the document body, indicating a social engineering lure. The PDF also contains a large number of external links, suggesting a link farm or SEO poisoning tactic. The primary malicious IOC is the redirector URL.

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/wb?keyword=cplex%20python%20reference%20manual
- http://files.susanwardbooks.com/uploads/1/3/1/6/131606670/fbfbbaf46c4.pdf
- http://files.hazelsoper.com/uploads/1/3/0/7/130775747/5386495.pdf
- http://files.stokesdaleumc.org/uploads/1/3/2/6/132695325/cdb2df88.pdf
- http://files.tattered-dragon.com/uploads/1/3/2/6/132682778/ae0fba8829.pdf
- http://files.tattered-dragon.com/uploads/1/3/2/6/132682778
- https://lipivova103284907.files.wordpress.com/2020/06/8535573687.pdf
- https://sebonan.files.wordpress.com/2020/06/rezuxomu.pdf
- https://lixofejuj.files.wordpress.com/2020/07/nibusezaneni.pdf
- https://jekaxiwu.files.wordpress.com/2020/07/faxurevibejig.pdf
- https://nedepiru.files.wordpress.com/2020/06/kezanakinuxebapikaburas.pdf
- https://natebiwogu.files.wordpress.com/2020/07/60410266165.pdf
- https://mujesovo.files.wordpress.com/2020/07/52077467344.pdf
- https://sipemuxi.files.wordpress.com/2020/06/97473182417.pdf
- https://nakeset.files.wordpress.com/2020/06/97747532090.pdf
- https://dipajar.files.wordpress.com/2020/06/84044902153.pdf
- https://cdn.shopify.com/s/files/1/0431/9969/2958/files/1135918153.pdf
- https://cdn.shopify.com/s/files/1/0430/4296/3613/files/88490257821.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bovabokuvuxinapuwukiberem.pdf
- https://cdn.shopify.com/s/files/1/0430/8356/3162/files/98091167212.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/berujixawajibexuxutuzogar.pdf
- https://cdn.shopify.com/s/files/1/0429/7857/4490/files/bikirur.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.

Filename	Kind	Source	Size
`font_00_sfnt_off00005b7d.bin` `a0f805132661262d679b4711dab71337e8833d99de962f883158c015fa30ae6a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5B7D	5104 bytes
`font_01_sfnt_off00006cb8.bin` `d63334a9296dbe68cd536fceab1bc71fb065341149efe408ca1e3f81a6b28f4c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6CB8	9916 bytes

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