PDF malware analysis — malicious · 2d1f82d087bcc53a

MALICIOUS

PDF

40.9 KB Created: 2020-08-04 23:59:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 3561935601b4b2123d1fac4458e5681b SHA-1: a01321ada5fc9881f4ca5ea5b088d51239440235 SHA-256: 2d1f82d087bcc53a1269bd96d501e323a2c8efd978ff822dbc12e7dfd37f7afc

128 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. The document body, though heavily obfuscated, contains the same URL and appears to be a lure for 'current affairs' information. The presence of a mass external PDF link farm further indicates a malicious intent to distribute links. The primary IOC is the malicious redirector URL.

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.
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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=august+2020+current+affairs+pdf+in+gujarati
- http://files.shaindeesmakeup.com/uploads/1/3/1/3/131381109/liruvojurefaz_runoxiwuvaga_daruxovigevo.pdf
- http://files.azlames.com/uploads/1/3/1/3/131384589/povozo.pdf
- http://files.posarro.com/uploads/1/3/1/4/131453021/8143682.pdf
- https://cdn.shopify.com/s/files/1/0438/9568/5288/files/singer_31_15.pdf
- https://cdn.shopify.com/s/files/1/0430/1661/8145/files/ruxipiz.pdf
- https://cdn.shopify.com/s/files/1/0437/5802/6903/files/sivoxibup.pdf
- https://cdn.shopify.com/s/files/1/0429/3092/9827/files/suvatunamajijixozur.pdf
- https://cdn.shopify.com/s/files/1/0435/2835/6000/files/95183723935.pdf
- https://cdn.shopify.com/s/files/1/0431/8114/6280/files/73323942567.pdf
- https://cdn.shopify.com/s/files/1/0431/2950/3908/files/jomarosorekupap.pdf
- https://cdn.shopify.com/s/files/1/0430/9378/6791/files/19887168063.pdf
- https://cdn.shopify.com/s/files/1/0431/9281/1681/files/tapenajibuxax.pdf
- https://cdn.shopify.com/s/files/1/0429/9993/9235/files/98336086542.pdf
- https://cdn.shopify.com/s/files/1/0433/3443/4969/files/benabozebutot.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
`font_00_sfnt_off00005408.bin` `7d7cb557e1eba24b43a3afdd4490db9f86ea20438073996d4cf7a4ae3506107f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5408	5400 bytes
`font_01_sfnt_off00006673.bin` `c91fd90e6e62162c39e1f8a5b1eaf4a6ce1f09b178cbe1e498a5b08abfdb06c2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6673	9904 bytes
`font_02_sfnt_off00008852.bin` `1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8852	4324 bytes

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