PDF malware analysis — malicious · af764ad290ff38ba

MALICIOUS

PDF

44.3 KB Created: 2020-08-11 21:51:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 85ca6f187696963b91f437803dbbc34c SHA-1: 9cea7bb5eea9025b7100a0efaf57fdbc7dffe25f SHA-256: af764ad290ff38babebdfbbb08a67291ab331982c67ffb22ee5705b99b905e3a

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains embedded links that redirect to a known malicious domain, ttraff.com, under the guise of a software requirement specification for WhatsApp. This indicates a phishing or social engineering attack aimed at directing users to malicious infrastructure. The PDF also contains a large number of external links, many pointing to Shopify, which is characteristic of SEO link farm abuse to obscure the malicious redirector. No scripts were extracted, limiting the analysis of direct payload execution.

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/wb?keyword=software%20requirement%20specification%20for%20whatsapp%20pdf
- http://files.msbronson.com/uploads/1/3/1/8/131858044/6367112.pdf
- http://files.westcountryhearthattack.com/uploads/1/3/0/7/130776131/lumimiles.pdf
- http://mowolazeg.sanantoniohardwoodfloors.com/uploads/1/3/2/6/132681352/4395862.pdf
- http://files.ustars.org/uploads/1/3/0/8/130815437/5320563.pdf
- http://files.nationalhellenicsociety.net/uploads/1/3/0/8/130814623/9913736.pdf
- https://cdn.shopify.com/s/files/1/0430/4538/8437/files/86384948478.pdf
- https://cdn.shopify.com/s/files/1/0428/5494/0828/files/55992136997.pdf
- https://cdn.shopify.com/s/files/1/0429/8250/6647/files/22371201122.pdf
- https://cdn.shopify.com/s/files/1/0433/4298/7422/files/21567437226.pdf
- https://cdn.shopify.com/s/files/1/0430/4361/8965/files/med_surg_study_guide.pdf
- https://cdn.shopify.com/s/files/1/0428/3102/0198/files/81184114995.pdf
- https://cdn.shopify.com/s/files/1/0428/7738/6918/files/69029018054.pdf
- https://cdn.shopify.com/s/files/1/0432/7132/3808/files/63671795154.pdf
- https://cdn.shopify.com/s/files/1/0427/8393/2582/files/bulk_rename_utility.pdf
- https://cdn.shopify.com/s/files/1/0428/9291/8947/files/sinow.pdf
- https://cdn.shopify.com/s/files/1/0428/7656/7711/files/zuzidumalewe.pdf
- https://cdn.shopify.com/s/files/1/0437/4603/3818/files/77869433798.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zigomotixiwututorevibalu.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_off00006fae.bin` `91cb305b6207214288ae3adf35f964e9f913a9e6a5a7b3ccb57c3dcd7a11a102`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6FAE	5684 bytes
`font_01_sfnt_off000082e8.bin` `c6f720935f8b71dafcfc377334c21c04de63021141604ac9ccb84698355f28a1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x82E8	9628 bytes

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