xtremerat | 4c0c9f8c773d5cc77601fe14009e05ebc723e95f586519d0e4fdae5f35fa525d

General

Target

4c0c9f8c773d5cc77601fe14009e05ebc723e95f586519d0e4fdae5f35fa525d.exe
Size

585KB
MD5

55c0e0fb391a3ce4caaac1c49ed1ac00
SHA1

868da3a8c72eff600d54be3babe3721489a85500
SHA256

4c0c9f8c773d5cc77601fe14009e05ebc723e95f586519d0e4fdae5f35fa525d
SHA512

60a5a4f182a5e0dab19709276746465ae277822b990e95121cbb170d2c4e29a6d71457a4817f88d7f10aa464d2974cbdb4b7eeffe60b9e44d02bf0b30f608df1
SSDEEP

12288:Za7XtTWupXNT35AcFqTCC5ktTWupXNT35AcFqTCC5I:ZEhZpXJ3SGqTCCuhZpXJ3SGqTCCm

Score

10^/10

xtremerat persistence rat spyware

Malware Config

Extracted

Family

xtremerat

C2

mrdead.no-ip.org

Signatures

Detect XtremeRAT payload 6 IoCs

resource	yara_rule
behavioral1/memory/996-57-0x0000000000000000-mapping.dmp	family_xtremerat
behavioral1/files/0x0008000000013300-59.dat	family_xtremerat
behavioral1/memory/1436-62-0x0000000000000000-mapping.dmp	family_xtremerat
behavioral1/memory/1436-66-0x0000000000C80000-0x0000000000D1A000-memory.dmp	family_xtremerat
behavioral1/memory/996-65-0x0000000000C80000-0x0000000000D1A000-memory.dmp	family_xtremerat
behavioral1/memory/1436-67-0x0000000000C80000-0x0000000000D1A000-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

Modifies Installed Components in the registry 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{13335LDL-NM5Y-46WN-80SC-82Q1O8XG4GO1}	4c0c9f8c773d5cc77601fe14009e05ebc723e95f586519d0e4fdae5f35fa525d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{13335LDL-NM5Y-46WN-80SC-82Q1O8XG4GO1}\StubPath = "C:\\Windows\\system32\\InstallDir\\Server.exe restart"	4c0c9f8c773d5cc77601fe14009e05ebc723e95f586519d0e4fdae5f35fa525d.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{13335LDL-NM5Y-46WN-80SC-82Q1O8XG4GO1}	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{13335LDL-NM5Y-46WN-80SC-82Q1O8XG4GO1}\StubPath = "C:\\Windows\\system32\\InstallDir\\Server.exe restart"	svchost.exe

Adds Run key to start application 2 TTPs 8 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\system32\\InstallDir\\Server.exe"	svchost.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	4c0c9f8c773d5cc77601fe14009e05ebc723e95f586519d0e4fdae5f35fa525d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\system32\\InstallDir\\Server.exe"	4c0c9f8c773d5cc77601fe14009e05ebc723e95f586519d0e4fdae5f35fa525d.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run	4c0c9f8c773d5cc77601fe14009e05ebc723e95f586519d0e4fdae5f35fa525d.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\system32\\InstallDir\\Server.exe"	4c0c9f8c773d5cc77601fe14009e05ebc723e95f586519d0e4fdae5f35fa525d.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\system32\\InstallDir\\Server.exe"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run	svchost.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\InstallDir\Server.exe	4c0c9f8c773d5cc77601fe14009e05ebc723e95f586519d0e4fdae5f35fa525d.exe
File created	C:\Windows\SysWOW64\InstallDir\Server.exe	4c0c9f8c773d5cc77601fe14009e05ebc723e95f586519d0e4fdae5f35fa525d.exe
File opened for modification	C:\Windows\SysWOW64\InstallDir\	4c0c9f8c773d5cc77601fe14009e05ebc723e95f586519d0e4fdae5f35fa525d.exe

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

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1436	explorer.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1488 wrote to memory of 996	1488	4c0c9f8c773d5cc77601fe14009e05ebc723e95f586519d0e4fdae5f35fa525d.exe	28
PID 1488 wrote to memory of 996	1488	4c0c9f8c773d5cc77601fe14009e05ebc723e95f586519d0e4fdae5f35fa525d.exe	28
PID 1488 wrote to memory of 996	1488	4c0c9f8c773d5cc77601fe14009e05ebc723e95f586519d0e4fdae5f35fa525d.exe	28
PID 1488 wrote to memory of 996	1488	4c0c9f8c773d5cc77601fe14009e05ebc723e95f586519d0e4fdae5f35fa525d.exe	28
PID 1488 wrote to memory of 996	1488	4c0c9f8c773d5cc77601fe14009e05ebc723e95f586519d0e4fdae5f35fa525d.exe	28
PID 1488 wrote to memory of 1436	1488	4c0c9f8c773d5cc77601fe14009e05ebc723e95f586519d0e4fdae5f35fa525d.exe	29
PID 1488 wrote to memory of 1436	1488	4c0c9f8c773d5cc77601fe14009e05ebc723e95f586519d0e4fdae5f35fa525d.exe	29
PID 1488 wrote to memory of 1436	1488	4c0c9f8c773d5cc77601fe14009e05ebc723e95f586519d0e4fdae5f35fa525d.exe	29
PID 1488 wrote to memory of 1436	1488	4c0c9f8c773d5cc77601fe14009e05ebc723e95f586519d0e4fdae5f35fa525d.exe	29
PID 1488 wrote to memory of 1436	1488	4c0c9f8c773d5cc77601fe14009e05ebc723e95f586519d0e4fdae5f35fa525d.exe	29

C:\Users\Admin\AppData\Local\Temp\4c0c9f8c773d5cc77601fe14009e05ebc723e95f586519d0e4fdae5f35fa525d.exe
"C:\Users\Admin\AppData\Local\Temp\4c0c9f8c773d5cc77601fe14009e05ebc723e95f586519d0e4fdae5f35fa525d.exe"
1⤵
- Modifies Installed Components in the registry
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:1488
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Modifies Installed Components in the registry
  - Adds Run key to start application
  PID:996
- C:\Windows\SysWOW64\explorer.exe
  explorer.exe
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:1436

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

2

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\InstallDir\Server.exe

Filesize
585KB

MD5
55c0e0fb391a3ce4caaac1c49ed1ac00

SHA1
868da3a8c72eff600d54be3babe3721489a85500

SHA256
4c0c9f8c773d5cc77601fe14009e05ebc723e95f586519d0e4fdae5f35fa525d

SHA512
60a5a4f182a5e0dab19709276746465ae277822b990e95121cbb170d2c4e29a6d71457a4817f88d7f10aa464d2974cbdb4b7eeffe60b9e44d02bf0b30f608df1

Download Submit
memory/996-55-0x0000000000C80000-0x0000000000D1A000-memory.dmp

Filesize
616KB

Download
memory/996-65-0x0000000000C80000-0x0000000000D1A000-memory.dmp

Filesize
616KB

Download
memory/1436-64-0x0000000075161000-0x0000000075163000-memory.dmp

Filesize
8KB

Download
memory/1436-66-0x0000000000C80000-0x0000000000D1A000-memory.dmp

Filesize
616KB

Download
memory/1436-67-0x0000000000C80000-0x0000000000D1A000-memory.dmp

Filesize
616KB

Download
memory/1488-54-0x0000000076DC1000-0x0000000076DC3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads