Overview

overview

7

Static

static

3

Sulfoxide ...de.exe

windows7-x64

Sulfoxide ...de.exe

windows10-2004-x64

install_all.bat

windows7-x64

7

install_all.bat

windows10-2004-x64

7

vcredist2005_x64.exe

windows7-x64

7

vcredist2005_x64.exe

windows10-2004-x64

7

vcredist2005_x86.exe

windows7-x64

7

vcredist2005_x86.exe

windows10-2004-x64

7

vcredist2008_x64.exe

windows7-x64

7

vcredist2008_x64.exe

windows10-2004-x64

7

vcredist2008_x86.exe

windows7-x64

7

vcredist2008_x86.exe

windows10-2004-x64

7

vcredist2010_x64.exe

windows7-x64

7

vcredist2010_x64.exe

windows10-2004-x64

7

vcredist2010_x86.exe

windows7-x64

7

vcredist2010_x86.exe

windows10-2004-x64

7

vcredist2012_x64.exe

windows7-x64

7

vcredist2012_x64.exe

windows10-2004-x64

7

vcredist2012_x86.exe

windows7-x64

7

vcredist2012_x86.exe

windows10-2004-x64

7

vcredist2013_x64.exe

windows7-x64

7

vcredist2013_x64.exe

windows10-2004-x64

7

vcredist2013_x86.exe

windows7-x64

7

vcredist2013_x86.exe

windows10-2004-x64

7

vcredist20...64.exe

windows7-x64

7

vcredist20...64.exe

windows10-2004-x64

7

vcredist20...86.exe

windows7-x64

7

vcredist20...86.exe

windows10-2004-x64

7

Resubmissions

08-07-2024 19:52

240708-ylvblawclj 7

08-07-2024 19:44

240708-yf3e1swajl 7

08-07-2024 19:38

240708-ycgddavgmn 7

Analysis

  • max time kernel
    1336s
  • max time network
    1140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-07-2024 19:52

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General

  • Target

    vcredist2005_x64.exe

  • Size

    3.0MB

  • MD5

    56eaf4e1237c974f6984edc93972c123

  • SHA1

    ee916012783024dac67fc606457377932c826f05

  • SHA256

    0551a61c85b718e1fa015b0c3e3f4c4eea0637055536c00e7969286b4fa663e0

  • SHA512

    f8e15363e34db5b5445c41eea4dd80b2f682642cb8f1046f30ea4fb5f4f51b0b604f7bcb3000a35a7d3ba1d1bcc07df9b25e4533170c65640b2d137c19916736

  • SSDEEP

    49152:+r67+stI6RWGTAdyvlADUrpTmcOgohwJpEM5grO3oc1OXZViFeRyDErkLUMHzkRN:AM9l8pUr9m30L5grOQXZKAsErkbQRN

Score
7/10
persistenceprivilege_escalation

Malware Config

Signatures

  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 1 IoCs
  • Drops file in Windows directory 57 IoCs
  • Event Triggered Execution: Installer Packages 1 TTPs 1 IoCs
    persistenceprivilege_escalation
  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 3 IoCs
  • Modifies registry class 56 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\vcredist2005_x64.exe
    "C:\Users\Admin\AppData\Local\Temp\vcredist2005_x64.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:1176
    • C:\Windows\SysWOW64\msiexec.exe
      msiexec /i vcredist.msi
      2⤵
      • Enumerates connected drives
      • Event Triggered Execution: Installer Packages
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:3436
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4956
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3588
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 269F311B14B305B7A2E8D20F7247276F
      2⤵
      • Loads dropped DLL
      PID:3268
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:4852

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Event Triggered Execution

1
T1546

Installer Packages

1
T1546.016

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Event Triggered Execution

1
T1546

Installer Packages

1
T1546.016

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

2
T1012

Peripheral Device Discovery

2
T1120

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\vcredis1.cab
    Filesize

    312KB

    MD5

    77a9bff5af149160775741e204734d47

    SHA1

    7b5126af69b5a79593f39db94180f1ff11b0e39d

    SHA256

    20a26ed9a1edf7763a9b515522c5e29720048a482c7fbc8b7ff6bbdd27e61038

    SHA512

    bb0440f58f07e113bddd9a0afb5aab8af6493218784fe5fa6f4032e3a37088f91b7e766dee87cec4a9ea11d425d27b3b536430de3a52222e8bca3e0247d81e3b

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\vcredist.msi
    Filesize

    3.0MB

    MD5

    6dbdf338a0a25cdb236d43ea3ca2395e

    SHA1

    685b6ea61e574e628392eaac8b10aff4309f1081

    SHA256

    200fef5d4994523a02c4daa00060db28eb289b99d47fc6c1305183101e72bdeb

    SHA512

    6b5b31c55cf72ab92b17fb6074b3901a1e6afe0796ef9bc831e4dfb97450376d2889cd24b1cf3fce60eb3c1bcd1b31254b5cfa3ef6107974dfa0b35c233daf5a

    Download Submit
  • C:\Windows\Installer\MSIBB4C.tmp
    Filesize

    28KB

    MD5

    85221b3bcba8dbe4b4a46581aa49f760

    SHA1

    746645c92594bfc739f77812d67cfd85f4b92474

    SHA256

    f6e34a4550e499346f5ab1d245508f16bf765ff24c4988984b89e049ca55737f

    SHA512

    060e35c4de14a03a2cda313f968e372291866cc4acd59977d7a48ac3745494abc54df83fff63cf30be4e10ff69a3b3c8b6c38f43ebd2a8d23d6c86fbee7ba87d

    Download Submit
  • \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
    Filesize

    23.7MB

    MD5

    37ee31eafa805c7a1e99a9a49b52888f

    SHA1

    01dce3bfd7957c8ba8a3f6fd02f1182a549ca257

    SHA256

    fe75357e65bdbfc315606e9664e052162aebaa9cc030ac722d00bf41255db509

    SHA512

    811643bb4df20abdb6d3b800e9b98dc2f9aa171b5444576da115e23d71bacd5e4d4ca78bc16e8ad8d286fd1869ccf47f58c65cce82f51facdbcce8a1d61d0f02

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  • \??\Volume{82715e7d-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{c5044f39-55d6-4817-8f63-e1b34ca679d9}_OnDiskSnapshotProp
    Filesize

    6KB

    MD5

    0512d995e74b403fbeb5ec00d1d350b4

    SHA1

    aaa314796eb016ad1ac8900e174e17efeb481674

    SHA256

    809e4f4b2ab93192870ca6c662aee21a2bf64ef9575fe8221c542331269753a2

    SHA512

    95e10dca616858240b066a96406ebf952d9b0b1e0cb3edd1f6d1e40d912f6f987d5f4a75943f56059700c73b238f4aafee32536095e61d36b271dea75be2d8ac

    Download Submit