6b55fa4d047a09ac46bff4e36e27cf8553670ec2e62c21e3e9652dbf26d89006

Analysis

max time kernel
131s
max time network
78s
platform
windows10_x64
resource
win10v200430
submitted
21/07/2020, 16:16

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General

Target
MaMoCrypter.bin.exe
Size 922KB
Sample200721-jlr1zdebhe
SHA256 5063ae08ea15ab78bd9062ca0d0813c0682a22583ecd1830efeb6afcc2dd45d8
MD5 0889138a3894284e97b61f9a310e3e7d
SHA1 6c51969b1b1686abd8220191e12e647ab7312517
SHA512 23317713644609a71953fc632478ee638d818bbb675e4f4ca00226cb4006a631800b3fe35c57aa85078f54155cb5d5c409e37fff25fc8315ee702a30c18f6f18
MD5 SHA1 SHA512

Score

10^/10

ransomware evasion trojan persistence

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\How Do I Recover My Files (Readme).txt

Ransom Note

* What happened to my files? Your important files are encrypted. Many of your documents, photos, videos, databases, and other files are no longer accessible because they are encrypted. Maybe you're busy finding a way to recover your files, but do not waste your time. Nobody can recover your files without our decryption service. However, if you want to use the programs of data recovery companies, please do not work on your original files, but make copies of them. Corruption of the actual files can cause irreversible damage to your data. * Can I Recover My Files? Sure. We guarantee that you can recover all your files safely and easily. But for this you need to send $300 worth bitcoins to our address. Even if you give money, Do not believe the people around you who say they will not give your files, I Have Enough Reference To Give You Confidence. I don't know about you, so there is no point in having bad feelings towards you, doing evil to you, my goal is just to earn an income from this business. * What about the guarantees? This is just a job. We never care about you and your deals. If we do not fulfill our work and obligations - no one will cooperate with us. If you do not believe us, tell us any 1 or 2 files with SIMPLE extensions (jpg, xls, doc, etc ... not databases!) And low size (max 1 mb) 1 or 2 file and following special public and private mzrevenge keys produced for you send us we will decrypt these files and send it back to you. This is our guarantee. * How to contact with you? You can write us to our mailbox: [email protected] Don't forget, check your "Spam" or "Junk" folder it you can't get more than 6 hours of answer. * How will the decryption process proceed after payment? After payment, we will send you our special decoder program by mail, just open it, then it will automatically decrypt all your files. but you need to pay for it and contact us. * So what is Bitcoin and how to get it? The easiest way to buy bitcoins is LocalBitcoins site. You have to register, click 'Buy bitcoins', and select the seller by payment method and price. https://localbitcoins.com/buy_bitcoins Also you can find other places to buy Bitcoins and beginners guide here: http://www.coindesk.com/information/how-can-i-buy-bitcoins/ If you are ready to pay the money we want, Bitcoin address to which you will send the payment: 3HYoqfBS1ZceA2AvmdEucbnEHp74nu9cjd These are public and private MZREVENGE decryption keys produced for you. If these keys are damaged, nobody can recovery your files. ============================{ PUBLIC MZREVENGE KEY }============================= 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 ================================================================================= ============================{ PRIVATE MZREVENGE KEY }============================ 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 =================================================================================

Emails

[email protected]

Wallets

3HYoqfBS1ZceA2AvmdEucbnEHp74nu9cjd

Signatures

Suspicious behavior: EnumeratesProcesses 22 IoCs

pid	Process
1464	svchost.exe
1464	svchost.exe
1464	svchost.exe
1464	svchost.exe
1464	svchost.exe
1464	svchost.exe
1464	svchost.exe
1464	svchost.exe
3396	WerFault.exe
3396	WerFault.exe
3396	WerFault.exe
3396	WerFault.exe
3396	WerFault.exe
3396	WerFault.exe
3396	WerFault.exe
3396	WerFault.exe
3396	WerFault.exe
3396	WerFault.exe
3396	WerFault.exe
3396	WerFault.exe
3396	WerFault.exe
3396	WerFault.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeBackupPrivilege	3680	vssvc.exe
Token: SeRestorePrivilege	3680	vssvc.exe
Token: SeAuditPrivilege	3680	vssvc.exe
Token: SeIncreaseQuotaPrivilege	3024	WMIC.exe
Token: SeSecurityPrivilege	3024	WMIC.exe
Token: SeTakeOwnershipPrivilege	3024	WMIC.exe
Token: SeLoadDriverPrivilege	3024	WMIC.exe
Token: SeSystemProfilePrivilege	3024	WMIC.exe
Token: SeSystemtimePrivilege	3024	WMIC.exe
Token: SeProfSingleProcessPrivilege	3024	WMIC.exe
Token: SeIncBasePriorityPrivilege	3024	WMIC.exe
Token: SeCreatePagefilePrivilege	3024	WMIC.exe
Token: SeBackupPrivilege	3024	WMIC.exe
Token: SeRestorePrivilege	3024	WMIC.exe
Token: SeShutdownPrivilege	3024	WMIC.exe
Token: SeDebugPrivilege	3024	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3024	WMIC.exe
Token: SeRemoteShutdownPrivilege	3024	WMIC.exe
Token: SeUndockPrivilege	3024	WMIC.exe
Token: SeManageVolumePrivilege	3024	WMIC.exe
Token: 33	3024	WMIC.exe
Token: 34	3024	WMIC.exe
Token: 35	3024	WMIC.exe
Token: 36	3024	WMIC.exe
Token: SeIncreaseQuotaPrivilege	3024	WMIC.exe
Token: SeSecurityPrivilege	3024	WMIC.exe
Token: SeTakeOwnershipPrivilege	3024	WMIC.exe
Token: SeLoadDriverPrivilege	3024	WMIC.exe
Token: SeSystemProfilePrivilege	3024	WMIC.exe
Token: SeSystemtimePrivilege	3024	WMIC.exe
Token: SeProfSingleProcessPrivilege	3024	WMIC.exe
Token: SeIncBasePriorityPrivilege	3024	WMIC.exe
Token: SeCreatePagefilePrivilege	3024	WMIC.exe
Token: SeBackupPrivilege	3024	WMIC.exe
Token: SeRestorePrivilege	3024	WMIC.exe
Token: SeShutdownPrivilege	3024	WMIC.exe
Token: SeDebugPrivilege	3024	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3024	WMIC.exe
Token: SeRemoteShutdownPrivilege	3024	WMIC.exe
Token: SeUndockPrivilege	3024	WMIC.exe
Token: SeManageVolumePrivilege	3024	WMIC.exe
Token: 33	3024	WMIC.exe
Token: 34	3024	WMIC.exe
Token: 35	3024	WMIC.exe
Token: 36	3024	WMIC.exe
Token: SeRestorePrivilege	3396	WerFault.exe
Token: SeBackupPrivilege	3396	WerFault.exe
Token: SeDebugPrivilege	3396	WerFault.exe

Modifies service 2 TTPs 4 IoCs

persistence

Modify Registry

T1112

Modify Existing Service

T1031

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Registry Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\COM+ REGDB Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\ASR Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Shadow Copy Optimization Writer	vssvc.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1231583446-2617009595-2137880041-1000_Classes\Local Settings	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1464	svchost.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3396	2100	WerFault.exe	74

UAC bypass 3 TTPs
evasion trojan

Bypass User Account Control
T1088

Disabling Security Tools
T1089

Modify Registry
T1112
Launches sc.exe
Sc.exe is a Windows utlilty to control services on the system.

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File created	C:\Windows\System32\drivers\etc\host	svchost.exe

System policy modification 1 TTPs 17 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableInstallerDetection = "1"	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableVirtualization = "1"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\legalnoticecaption	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\legalnoticetext	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "1"	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\scforceoption = "0"	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\shutdownwithoutlogon = "1"	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "5"	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\undockwithoutlogon = "1"	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\dontdisplaylastusername = "0"	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ValidateAdminCodeSignatures = "0"	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorUser = "3"	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableSecureUIAPaths = "1"	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableUIADesktopToggle = "5"	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\FilterAdministratorToken = "0"	svchost.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System	svchost.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 952 wrote to memory of 1464	952	MaMoCrypter.bin.exe	68
PID 952 wrote to memory of 1464	952	MaMoCrypter.bin.exe	68
PID 952 wrote to memory of 1464	952	MaMoCrypter.bin.exe	68
PID 1464 wrote to memory of 1836	1464	svchost.exe	70
PID 1464 wrote to memory of 1836	1464	svchost.exe	70
PID 1464 wrote to memory of 1836	1464	svchost.exe	70
PID 1464 wrote to memory of 1888	1464	svchost.exe	71
PID 1464 wrote to memory of 1888	1464	svchost.exe	71
PID 1464 wrote to memory of 1888	1464	svchost.exe	71
PID 1464 wrote to memory of 2100	1464	svchost.exe	74
PID 1464 wrote to memory of 2100	1464	svchost.exe	74
PID 1464 wrote to memory of 2100	1464	svchost.exe	74
PID 1888 wrote to memory of 2560	1888	cmd.exe	76
PID 1888 wrote to memory of 2560	1888	cmd.exe	76
PID 1888 wrote to memory of 2560	1888	cmd.exe	76
PID 1836 wrote to memory of 2720	1836	cmd.exe	77
PID 1836 wrote to memory of 2720	1836	cmd.exe	77
PID 1836 wrote to memory of 2720	1836	cmd.exe	77
PID 1888 wrote to memory of 3024	1888	cmd.exe	79
PID 1888 wrote to memory of 3024	1888	cmd.exe	79
PID 1888 wrote to memory of 3024	1888	cmd.exe	79
PID 1464 wrote to memory of 732	1464	svchost.exe	83
PID 1464 wrote to memory of 732	1464	svchost.exe	83
PID 1464 wrote to memory of 732	1464	svchost.exe	83

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	svchost.exe

Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Interacts with shadow copies 2 TTPs 1 IoCs

Shadow copies are often targeted by ransomware to inhibit system recovery.

ransomware

File Deletion

T1107

Inhibit System Recovery

T1490

pid	Process
2560	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\MaMoCrypter.bin.exe
"C:\Users\Admin\AppData\Local\Temp\MaMoCrypter.bin.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:952
- C:\Users\Admin\AppData\Local\Temp\svchost.exe
  "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Modifies registry class
  - Executes dropped EXE
  - Drops file in Drivers directory
  - System policy modification
  - Suspicious use of WriteProcessMemory
  - Checks whether UAC is enabled
  PID:1464
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /C sc config "AppCheck" start=disabled
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1836
  - - C:\Windows\SysWOW64\sc.exe
      sc config "AppCheck" start=disabled
      4⤵
      PID:2720
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete & bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no & wbadmin delete catalog -quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1888
  - - C:\Windows\SysWOW64\vssadmin.exe
      vssadmin delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:2560
  - - C:\Windows\SysWOW64\Wbem\WMIC.exe
      wmic shadowcopy delete
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:3024
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -e RwBlAHQALQBXAG0AaQBPAGIAagBlAGMAdAAgAFcAaQBuADMAMgBfAFMAaABhAGQAbwB3AGMAbwBwAHkAIAB8ACAARgBvAHIARQBhAGMAaAAtAE8AYgBqAGUAYwB0ACAAewAkAF8ALgBEAGUAbABlAHQAZQAoACkAOwB9AA==
    3⤵
    PID:2100
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2100 -s 704
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Program crash
      PID:3396
- - C:\Windows\SysWOW64\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\How Do I Recover My Files (Readme).txt
    3⤵
    PID:732