PDF malware analysis — malicious · f5ca7603ef837ccb

MALICIOUS

PDF

55.1 KB Created: 2020-08-19 19:14:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 0e6a3f8860f05f242b0ef7029e21e394 SHA-1: 0c551319d5f293a8dba26d63a270575773840d25 SHA-256: f5ca7603ef837ccb7a0f13e80acea231e2e4938761b098b35c4808b4905dc8ff

160 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.ru, which is designed to lead users to phishing sites. The document body, though heavily obfuscated, contains the target URL and suggests a lure for accessing Gmail on Android. The presence of a "Password-protected archive lure" heuristic indicates that this PDF is likely part of a multi-stage attack where the user is instructed to download and decrypt a subsequent payload.

Heuristics 4

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.
Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE

Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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=accedere+a+gmail+da+android
- http://files.thegeorgiaruthhouse.com/uploads/1/3/1/4/131438228/wakebuv-jujeze-vipat.pdf
- http://files.rosecitytrinityumc.org/uploads/1/3/2/6/132681698/3930896.pdf
- http://nonelimi.livinghopefwc.com/uploads/1/3/2/8/132814930/norodubevokojowa.pdf
- https://cdn.shopify.com/s/files/1/0429/9902/1717/files/77694493224.pdf
- https://cdn.shopify.com/s/files/1/0432/7833/6165/files/kunelira.pdf
- https://cdn.shopify.com/s/files/1/0429/4275/9071/files/suwadokufi.pdf
- https://cdn.shopify.com/s/files/1/0429/3325/6345/files/2974918206.pdf
- https://cdn.shopify.com/s/files/1/0428/7270/1095/files/3573290075.pdf
- https://cdn.shopify.com/s/files/1/0434/8251/3570/files/74321098666.pdf
- https://cdn.shopify.com/s/files/1/0429/6451/7023/files/anlauttabelle_einsterns_schwester.pdf
- https://cdn.shopify.com/s/files/1/0432/0159/3502/files/5031479140.pdf
- https://cdn.shopify.com/s/files/1/0434/0622/9654/files/nagajidexawajejiwegat.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_off00007692.bin` `9b78bd42b7f95c34b6c5662cb1520a869f88df1caf1fd2d97ad21486bdacd354`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7692	4780 bytes
`font_01_sfnt_off00008695.bin` `68442a6ccc3ac25a3b9de3437e5df1f5cf0c6b4128ca8efae1925cfbb5bea5b8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8695	11024 bytes
`font_02_sfnt_off0000aa7a.bin` `fff8b70d67420864e2a263fdbbaad35efae781e73a516d3cf38207748e8715b5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAA7A	16088 bytes
`font_03_sfnt_off0000bf2e.bin` `b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBF2E	4324 bytes

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