PDF malware analysis — malicious · a5f5bbfafe6e4840

MALICIOUS

PDF

41.2 KB Created: 2020-08-25 05:27:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: aae7866cb25bdb2043597785c0a0d052 SHA-1: 79daf375355d773c2ab5d433f48ba4e663935aa2 SHA-256: a5f5bbfafe6e484067d06c92399a462dc4e12a1e9d34bb8a960302eea4768a8c

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged by multiple critical heuristics for containing a malicious redirector link and a large number of external links, suggesting an SEO poisoning or phishing campaign. The embedded URL 'https://ttraff.cc/pify?keyword=love+birds+photos++free' is a known malicious redirector. The document body, though heavily corrupted, contains fragments of this URL and other PDF links, reinforcing the finding of a link farm.

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.cc/pify?keyword=love+birds+photos++free
- http://gasudup.dropbucketmarketing.com/uploads/1/3/1/4/131407921/sixoviviwa_satopalapoda_nekit_fubalupuv.pdf
- http://dolizaw.bodymindnurture.com/uploads/1/3/2/6/132695829/jisove.pdf
- http://gixoz.leftanglebeta.com/uploads/1/3/1/3/131379578/welobavo.pdf
- http://files.shopstudio233.com/uploads/1/3/1/8/131871780/dc6bb3.pdf
- https://cdn.shopify.com/s/files/1/0428/7240/6179/files/85290961963.pdf
- https://cdn.shopify.com/s/files/1/0433/7631/2471/files/19749585922.pdf
- https://cdn.shopify.com/s/files/1/0429/0841/8211/files/oceanography_book.pdf
- https://cdn.shopify.com/s/files/1/0436/9698/0136/files/line_manager_meaning.pdf
- https://cdn.shopify.com/s/files/1/0427/5906/1670/files/cancionero_de_guitarra_boleros.pdf
- https://cdn.shopify.com/s/files/1/0431/7793/5005/files/48130911685.pdf
- https://cdn.shopify.com/s/files/1/0450/8617/9480/files/mobius_aromaticity.pdf
- https://cdn.shopify.com/s/files/1/0433/4980/3162/files/bokizukixirujulogasa.pdf
- https://cdn.shopify.com/s/files/1/0463/2500/6497/files/16486319641.pdf
- https://cdn.shopify.com/s/files/1/0429/2381/9164/files/telugu_bible_quiz.pdf
- https://cdn.shopify.com/s/files/1/0428/0143/0695/files/18446403813.pdf
- https://cdn.shopify.com/s/files/1/0437/7939/1646/files/6143453087.pdf
- https://cdn.shopify.com/s/files/1/0432/3157/6231/files/aplastic_anemia_in_pregnancy.pdf
- https://cdn.shopify.com/s/files/1/0438/2097/4242/files/cattiva_condotta.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_off00005a91.bin` `012e04b8119e13a777cadcd10baa0bb03d4421cca665d1120ae2fc5e16be43f2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5A91	5028 bytes
`font_01_sfnt_off00006bb2.bin` `e6444f0172010ee03f43c6fe01393421c223fa768604d0518da827ba4d25795a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6BB2	14160 bytes

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