PDF malware analysis — malicious · 8a0fcbd31b152729

MALICIOUS

PDF

40.1 KB Created: 2020-08-19 02:48:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: be1425ba5fd11367a00fa1ba16cc48b7 SHA-1: 24e3bad3e99e2b908d721ac78541f57b5d566cbb SHA-256: 8a0fcbd31b1527298928a890a9e2fdda14d09ae68da9ad19e85227d999fae035

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a prominent link to a redirector URL, identified as malicious. The document body, though heavily obfuscated, contains text related to 'Virgin Australia app for android' and the malicious URL itself, suggesting a phishing or scam attempt. The presence of a large number of external PDF links, many hosted on Shopify, indicates a link farm designed to distribute malicious content.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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.ru/pify?keyword=virgin+australia+app+for+android
- http://fuduv.uamanchester.com/uploads/1/3/1/3/131379591/timuzenelom.pdf
- http://files.girlzwithguns2019.com/uploads/1/3/1/8/131872105/5121821.pdf
- http://files.ordernutsabouttella.com/uploads/1/3/1/6/131636890/376ff.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rakapadanixip.pdf
- https://cdn.shopify.com/s/files/1/0433/1313/5774/files/psp_emulator_for_android_v4._21_apk.pdf
- https://cdn.shopify.com/s/files/1/0440/7921/8838/files/carrier_air_conditioner_manual.pdf
- https://cdn.shopify.com/s/files/1/0428/3557/4943/files/estados_unidos_y_china.pdf
- https://cdn.shopify.com/s/files/1/0436/3943/9510/files/french_to_english_textbook.pdf
- https://cdn.shopify.com/s/files/1/0432/9635/8565/files/muberigasapojomovagore.pdf
- https://cdn.shopify.com/s/files/1/0434/2058/2050/files/12276304703.pdf
- https://cdn.shopify.com/s/files/1/0431/3517/2770/files/mnemonica_stack_order.pdf
- https://cdn.shopify.com/s/files/1/0432/1217/7572/files/gift_of_fire.pdf
- https://cdn.shopify.com/s/files/1/0435/2036/0600/files/sql_server_management_studio_2016_client.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00004a0f.bin` `e7a48611d41ebf143eef01d8219e177e84bdc32ea0c39fc973544e0c580f9e24`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4A0F	4940 bytes
`font_01_sfnt_off00005ad6.bin` `4673df62f83c90a4a8b175f4a29f68dd27e8b155ac9c6a456a294eea89c3893f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5AD6	2236 bytes
`font_02_sfnt_off00006501.bin` `6549356ba4d538de085d17b2d331cfd090627de9ab2d5f3521d8d9f3333ecac0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6501	9392 bytes
`font_03_sfnt_off0000852c.bin` `0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x852C	4324 bytes

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