xtremerat | c5b4d46b5a176b27c852c75497eb39d6160734cef53b0b6af4732873b1c9ff7a

General

Target
4874a873c82ebaab0494ff93b128a174_JaffaCakes118.exe
Size 148KB
Sample240715-gdegqstdjf
SHA256 c5b4d46b5a176b27c852c75497eb39d6160734cef53b0b6af4732873b1c9ff7a
MD5 4874a873c82ebaab0494ff93b128a174
SHA1 e5766224dbcb24433f87a84646e91ae5666bc0bc
SHA512 bcf4e569ebf2423cc8f6e05f6eaee16147d7bdf7547f8a208ae440ab5f8d05380c5bfe2b46186ebbbd893023c1b1d2d2aff8c669d447e72de5d2b6cc6c84bb90
SSDEEP 3072:fJc4j4tMBfm1bUiTrZyZmTWF42wDThZgf6nH:6F2YGFwHhyf6n
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xtremerat persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

abogaism1.zapto.org

Signatures

Detect XtremeRAT payload 6 IoCs

resource	yara_rule
behavioral2/memory/996-5-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral2/memory/996-6-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral2/memory/2184-13-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral2/memory/3680-15-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral2/memory/996-16-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral2/memory/3680-18-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat

XtremeRAT
The XtremeRAT was developed by xtremecoder and has been available since at least 2010, and written in Delphi.
persistence spyware rat xtremerat

Boot or Logon Autostart Execution: Active Setup 2 TTPs 4 IoCs

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

persistence

Active Setup

T1547.014

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{8251KKI0-580G-8M1S-0C3X-OU6I3535W01X}	4874a873c82ebaab0494ff93b128a174_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{8251KKI0-580G-8M1S-0C3X-OU6I3535W01X}\StubPath = "C:\\Users\\Admin\\AppData\\Local\\Temp\\InstallDir\\Server.exe restart"	4874a873c82ebaab0494ff93b128a174_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{8251KKI0-580G-8M1S-0C3X-OU6I3535W01X}	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{8251KKI0-580G-8M1S-0C3X-OU6I3535W01X}\StubPath = "C:\\Users\\Admin\\AppData\\Local\\Temp\\InstallDir\\Server.exe restart"	svchost.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/996-2-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral2/memory/996-4-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral2/memory/996-5-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral2/memory/996-6-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral2/memory/2184-13-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral2/memory/3680-15-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral2/memory/996-16-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral2/memory/3680-18-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Users\\Admin\\AppData\\Local\\Temp\\InstallDir\\Server.exe"	4874a873c82ebaab0494ff93b128a174_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Users\\Admin\\AppData\\Local\\Temp\\InstallDir\\Server.exe"	4874a873c82ebaab0494ff93b128a174_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Users\\Admin\\AppData\\Local\\Temp\\InstallDir\\Server.exe"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Users\\Admin\\AppData\\Local\\Temp\\InstallDir\\Server.exe"	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3224 set thread context of 996	3224	4874a873c82ebaab0494ff93b128a174_JaffaCakes118.exe	87

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

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3224	4874a873c82ebaab0494ff93b128a174_JaffaCakes118.exe
3680	svchost.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 3224 wrote to memory of 996	3224	4874a873c82ebaab0494ff93b128a174_JaffaCakes118.exe	87
PID 3224 wrote to memory of 996	3224	4874a873c82ebaab0494ff93b128a174_JaffaCakes118.exe	87
PID 3224 wrote to memory of 996	3224	4874a873c82ebaab0494ff93b128a174_JaffaCakes118.exe	87
PID 3224 wrote to memory of 996	3224	4874a873c82ebaab0494ff93b128a174_JaffaCakes118.exe	87
PID 3224 wrote to memory of 996	3224	4874a873c82ebaab0494ff93b128a174_JaffaCakes118.exe	87
PID 3224 wrote to memory of 996	3224	4874a873c82ebaab0494ff93b128a174_JaffaCakes118.exe	87
PID 3224 wrote to memory of 996	3224	4874a873c82ebaab0494ff93b128a174_JaffaCakes118.exe	87
PID 3224 wrote to memory of 996	3224	4874a873c82ebaab0494ff93b128a174_JaffaCakes118.exe	87
PID 996 wrote to memory of 2184	996	4874a873c82ebaab0494ff93b128a174_JaffaCakes118.exe	88
PID 996 wrote to memory of 2184	996	4874a873c82ebaab0494ff93b128a174_JaffaCakes118.exe	88
PID 996 wrote to memory of 2184	996	4874a873c82ebaab0494ff93b128a174_JaffaCakes118.exe	88
PID 996 wrote to memory of 2184	996	4874a873c82ebaab0494ff93b128a174_JaffaCakes118.exe	88
PID 996 wrote to memory of 3680	996	4874a873c82ebaab0494ff93b128a174_JaffaCakes118.exe	89
PID 996 wrote to memory of 3680	996	4874a873c82ebaab0494ff93b128a174_JaffaCakes118.exe	89
PID 996 wrote to memory of 3680	996	4874a873c82ebaab0494ff93b128a174_JaffaCakes118.exe	89
PID 996 wrote to memory of 3680	996	4874a873c82ebaab0494ff93b128a174_JaffaCakes118.exe	89

C:\Users\Admin\AppData\Local\Temp\4874a873c82ebaab0494ff93b128a174_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4874a873c82ebaab0494ff93b128a174_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3224
- C:\Users\Admin\AppData\Local\Temp\4874a873c82ebaab0494ff93b128a174_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\4874a873c82ebaab0494ff93b128a174_JaffaCakes118.exe
  2⤵
  - Boot or Logon Autostart Execution: Active Setup
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:996
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - Boot or Logon Autostart Execution: Active Setup
    - Adds Run key to start application
    PID:2184
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:3680

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

Server.exe

Path C:\Users\Admin\AppData\Local\Temp\InstallDir\Server.exe
Size 148KB
SHA256 c5b4d46b5a176b27c852c75497eb39d6160734cef53b0b6af4732873b1c9ff7a
MD5 4874a873c82ebaab0494ff93b128a174
SHA1 e5766224dbcb24433f87a84646e91ae5666bc0bc
SHA512 bcf4e569ebf2423cc8f6e05f6eaee16147d7bdf7547f8a208ae440ab5f8d05380c5bfe2b46186ebbbd893023c1b1d2d2aff8c669d447e72de5d2b6cc6c84bb90
SSDEEP 3072:fJc4j4tMBfm1bUiTrZyZmTWF42wDThZgf6nH:6F2YGFwHhyf6n
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/996-2-0x0000000000C80000-0x0000000000C96000-memory.dmp

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memory/996-4-0x0000000000C80000-0x0000000000C96000-memory.dmp

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memory/996-5-0x0000000000C80000-0x0000000000C96000-memory.dmp

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memory/996-6-0x0000000000C80000-0x0000000000C96000-memory.dmp

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memory/996-16-0x0000000000C80000-0x0000000000C96000-memory.dmp

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memory/2184-13-0x0000000000C80000-0x0000000000C96000-memory.dmp

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memory/3680-15-0x0000000000C80000-0x0000000000C96000-memory.dmp

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memory/3680-18-0x0000000000C80000-0x0000000000C96000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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