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Overview

overview

10

Static

static

3

JaffaCakes...84.exe

windows7-x64

10

JaffaCakes...84.exe

windows10-2004-x64

10

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General

  • Target

    JaffaCakes118_eff7824cf7c1a23477bca1c80a555e84

  • Size

    435KB

  • Sample

    250212-nq347azjgk

  • MD5

    eff7824cf7c1a23477bca1c80a555e84

  • SHA1

    0f1b679a7753a8f84f8408ffe65199580ba49d51

  • SHA256

    84a74f4f38b3387cc309a6c7be50b2e07ea8460020d5fc8112d75227b4b497c3

  • SHA512

    97801f5f205b3292a89241eb49c0e85cf5b593588fe88133f71ba62b814a59d9c3bc550ff6bf9a1f423dd8445d7ebedda9132ef56a1aeb9def66875b0cd67847

  • SSDEEP

    6144:ibxsCQd/nzu7YjOuBh5MtH7UYALAa93dEqUqO4Nra3UI41fbCK2vEd:itsC+/ntKuBhC5lWF9tRjVriJK2

Score
10/10
isrstealerdiscoverystealertrojanupx

Malware Config

Targets

    • Target

      JaffaCakes118_eff7824cf7c1a23477bca1c80a555e84

    • Size

      435KB

    • MD5

      eff7824cf7c1a23477bca1c80a555e84

    • SHA1

      0f1b679a7753a8f84f8408ffe65199580ba49d51

    • SHA256

      84a74f4f38b3387cc309a6c7be50b2e07ea8460020d5fc8112d75227b4b497c3

    • SHA512

      97801f5f205b3292a89241eb49c0e85cf5b593588fe88133f71ba62b814a59d9c3bc550ff6bf9a1f423dd8445d7ebedda9132ef56a1aeb9def66875b0cd67847

    • SSDEEP

      6144:ibxsCQd/nzu7YjOuBh5MtH7UYALAa93dEqUqO4Nra3UI41fbCK2vEd:itsC+/ntKuBhC5lWF9tRjVriJK2

    Score
    10/10
    isrstealerdiscoverystealertrojanupx

    • ISR Stealer

      ISR Stealer is a modified version of Hackhound Stealer written in visual basic.

      trojanstealerisrstealer

    • ISR Stealer payload

    • Isrstealer family

      isrstealer

    • Downloads MZ/PE file

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Uses the VBS compiler for execution

    • Suspicious use of SetThreadContext

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks