Malicious PDF — malware analysis report

Static analysis result for SHA-256 a95cb903cdb56bc7…

MALICIOUS

PDF

34.0 KB Created: 2021-07-04 13:41:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: bfc5402f20328ba0b3518a916d43b5be SHA-1: aeffd826119df882bcad075dd84c49b9caae8eaa SHA-256: a95cb903cdb56bc7dc429ffbf92509dc55cce5d8d929c56336190ad2e258f164
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links to external resources, many of which are hosted on an IP address and promote game hacks and cheats. The ML classifier strongly indicates maliciousness, and the presence of 'cmds-injection-jailbreakdll' in a URL suggests an attempt to exploit vulnerabilities or deliver malicious code. The document likely serves as a lure to download or access further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://netcdn.tw/app/406889139/coin-master-spin-hack-app-game-hack
    • http://111.68.26.74/widyapustaka/repository/free-robux-2021-november_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/june-29-coin-master-hack-no-human-verification_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/new-roblox-hack-30-cmds-injection-jailbreakdll-2021_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/free-robux-exe_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/earn-free-robux-2021_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/master-coin-free-link_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/how-to-hack-roblox-on-a-tablet_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/ro-ghoul-roblox-hack_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/coin-master-hack-no-verification_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/how-to-use-cheat-engine-for-robux_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/minecraft-life-hacks_GM479516143.pdf
    • http://111.68.26.74/widyapustaka/repository/hacker-roblox-website_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/como-ser-un-hacker-en-house-of-keys-roblox_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/hacks-de-roblox-robux-2021_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/coin-master-hack-spins-android_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/roblox-cheat-engine-bypassed-2021_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/hacked-roblox-accounts-list_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/mega-marble-run-pit-roblox-hack_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/moonactive-coin-master-free-spins-link_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/rbx-free-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00002ed1.bin
0f908c1260caff438146bb0137d29561d954baa1d5e489220e8cea095251e124
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2ED1 22948 bytes
font_01_sfnt_off00006258.bin
eeaf9fe1c7e6789caefc07d53c000bb69e844de2835645c48fad05e1619410a4
pdf-font-stream PDF embedded font (sfnt) at offset 0x6258 18180 bytes