PDF malware analysis — malicious · ce587cf4d7fe8c21

MALICIOUS

PDF

54.8 KB Created: 2021-05-14 03:07:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-16

MD5: fee29ba559fdc6236ee250e20dd4f693 SHA-1: 68228c2347c07a6b71dc7c0d03f5825cac5ad379 SHA-256: ce587cf4d7fe8c21d46a9f4075fc156b5b5273ecda23c15cc3527d2dd00b3a50

260 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious Link

This PDF document employs a fake CAPTCHA lure to trick users into interacting with malicious links. The document contains numerous links to redirector infrastructure and SEO link farms, suggesting a campaign to drive traffic to potentially malicious sites. The primary lure appears to be related to 'game hacks' and 'free generators'.

Machine Learning

Nyx PDF Classifier malicious score 0.8531

Heuristics 6

PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE

PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
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.
Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA

Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
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://netcdn.xyz/app/406889139/master-free-spin-and-coin-link-game-hack In PDF document text
- https://www.manmed.info:443/images/how-to-hack-coin-master-spin-in-hindi_GM406889139.pdfIn PDF document text
- https://www.manmed.info:443/images/coin-master-free-spins-link-2021-app_GM406889139.pdfIn PDF document text
- https://www.manmed.info:443/images/body-roblox_GM431946152.pdfIn PDF document text
- https://www.manmed.info:443/images/coin-master-spin-blogspot_GM406889139.pdfIn PDF document text
- https://www.manmed.info:443/images/coin-master-free-coins-facebook_GM406889139.pdfIn PDF document text
- https://www.manmed.info:443/images/minecraft-hack-mod_GM479516143.pdfIn PDF document text
- https://www.manmed.info:443/images/coin-master-free-spins-link-blogspot-today_GM406889139.pdfIn PDF document text
- https://www.manmed.info:443/images/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.manmed.info:443/images/free-roblox-com_GM431946152.pdfIn PDF document text
- https://www.manmed.info:443/images/coin-master-free-spins-link-iphone_GM406889139.pdfIn PDF document text
- https://www.manmed.info:443/images/coin-master-free-spins-reddit_GM406889139.pdfIn PDF document text
- https://www.manmed.info:443/images/coin-master-game-hack-app_GM406889139.pdfIn PDF document text
- https://www.manmed.info:443/images/coin-master-hacks-no-human-verification_GM406889139.pdfIn PDF document text
- https://www.manmed.info:443/images/download-minecraft-bedrock_GM479516143.pdfIn PDF document text
- https://www.manmed.info:443/images/minecraft-dungeons-free-download_GM479516143.pdfIn PDF document text
- https://www.manmed.info:443/images/free-minecraft-bedrock-server-hosting-24-7_GM479516143.pdfIn PDF document text
- https://www.manmed.info:443/images/get-free-food-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.manmed.info:443/images/coin-master-free-spins-link-today-twitter_GM406889139.pdfIn PDF document text
- https://www.manmed.info:443/images/free-spins-coin-master-android_GM406889139.pdfIn PDF document text
- https://www.manmed.info:443/images/free-robux-easy_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004b08.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4B08	26244 bytes
SHA-256: `db3cd199352d3971ec9307b6a451d7c91f2270f43df1496aa1ad865d47a8656c`
`font_01_sfnt_off0000879f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x879F	3088 bytes
SHA-256: `e7854aff7cbc8fbdeb85d2b3d6248d12dc820ede8a581f4eac107fa6446c2222`
`font_02_sfnt_off0000926a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x926A	7960 bytes
SHA-256: `cf7ae5cf6bef3222f5a26bec705b492fed0278aec6b16ec101aeda46e0edd2b2`
`font_03_sfnt_off0000a58f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA58F	18228 bytes
SHA-256: `4b57acba41aa68bb280b2f656de6400654b723400b96e238fbc94aea55036d0e`
`font_04_sfnt_off0000c764.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC764	4272 bytes
SHA-256: `fac9a06ceb5574feb8580c075df3ef69dfbd0efa4947186cfe90f11b68eaafb0`

Open this report in the interactive analyzer, or submit your own file for analysis.