PDF malware analysis — malicious · 3b5e5ec15d7a3835

MALICIOUS

PDF

72.8 KB Created: 2020-07-23 15:03:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 8e512a3189c4942917b7647fa5180c77 SHA-1: 3949fbdbcd823b345c4becd68af3ad1224c8288c SHA-256: 3b5e5ec15d7a383538aa59192232179d5694f27111d1fbeff9b47fab4a582dba

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains embedded links that redirect to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The PDF_SEO_LINK_FARM heuristic further suggests a large number of outbound links, many hosted on cdn.shopify.com, which are likely part of a link farm to improve search engine ranking for malicious content. 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/pify?keyword=hikmah+kisah+ashabul+kahfi+pdf
- http://files.randypartinconstruction.com/uploads/1/3/1/4/131453902/382766.pdf
- http://files.radfordcoffeeco.com/uploads/1/3/1/0/131071164/zamogiwuxo.pdf
- http://files.innerresilience.net/uploads/1/3/2/6/132695543/3502152.pdf
- http://files.buildingfutureleaders.com/uploads/1/3/0/7/130775521/9923270.pdf
- http://files.theaterfreunde-siders.ch/uploads/1/3/0/7/130738719/wasasefupig.pdf
- https://cdn.shopify.com/s/files/1/0427/4877/2519/files/gajilinokotevap.pdf
- https://cdn.shopify.com/s/files/1/0432/5189/2381/files/98701714827.pdf
- https://cdn.shopify.com/s/files/1/0429/6274/7548/files/xewetolokotizivanetokufu.pdf
- https://cdn.shopify.com/s/files/1/0434/6858/7174/files/belowariwalizazavi.pdf
- https://cdn.shopify.com/s/files/1/0433/9249/9877/files/gebifibanabiwitopijomujed.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/28650507632.pdf
- https://cdn.shopify.com/s/files/1/0427/4615/1078/files/vakizajidibipume.pdf
- https://cdn.shopify.com/s/files/1/0430/2523/6121/files/94239858970.pdf
- https://cdn.shopify.com/s/files/1/0428/9432/7974/files/84302258338.pdf
- https://cdn.shopify.com/s/files/1/0435/2219/5608/files/siturofo.pdf
- https://cdn.shopify.com/s/files/1/0428/9894/8255/files/lebabulexusodazagi.pdf
- https://cdn.shopify.com/s/files/1/0434/3355/8168/files/62335502284.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.

Filename	Kind	Source	Size
`stream_008_off0000e180.bin` `d98cbe323bbc89fd677d25dabd4d0f8f926f226e2d8fc6f762abce4e504362ec`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0xE180	29216 bytes
`font_00_sfnt_off0000ae83.bin` `062486104daba0613e2a144e3a46581b942ec0036fef1ccc05861041390d4bbf`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAE83	4816 bytes
`font_01_sfnt_off0000beba.bin` `906bb1c68760c4f2e8dd49d2917cf5c0ca0e4a080b9d6ea466fe9123d9cf8654`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBEBA	10112 bytes

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