xtremerat | e25d2f5f09c95ea6c0dd5e5db8be55dac4bf913f87e4ac1ab8ce863027432ce1

General

Target

e25d2f5f09c95ea6c0dd5e5db8be55dac4bf913f87e4ac1ab8ce863027432ce1N.exe
Size

1.4MB
MD5

e49fa59b2facb42650cf29c60d653990
SHA1

4d1bfbae0b3c5047c40be4fed63a4218bbf480d6
SHA256

e25d2f5f09c95ea6c0dd5e5db8be55dac4bf913f87e4ac1ab8ce863027432ce1
SHA512

b7ddeea87fdc218d8c1765be9b34c9399f120d6f6df46b39af887c25cbde894a17952156282d08aabaa842094ddc7f0aeee91f2bf4e6632a89ad2e85a7b5b62b
SSDEEP

24576:7xRRtXc2uqRePccDXfZak5hSg0f6AsEwmHfy5yWgjT3NvIrf1ajRumgTaI2:rz6uaDRN5hSg0f6AxwmHf2gjT3Bi1ajh

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

stoya.no-ip.biz

Signatures

Detect XtremeRAT payload 4 IoCs

resource	yara_rule
behavioral2/memory/1992-18-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/1992-17-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3936-25-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3936-26-0x0000000010000000-0x000000001004D000-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
Xtremerat family
xtremerat

Downloads MZ/PE file 1 IoCs

flow	pid	Process
32	1476	Process not Found

Executes dropped EXE 3 IoCs

pid	Process
4460	osmnl.exe
1992	osmnl.exe
2260	Launcher.exe

Adds Run key to start application 2 TTPs 1 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\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	e25d2f5f09c95ea6c0dd5e5db8be55dac4bf913f87e4ac1ab8ce863027432ce1N.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4460	osmnl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4460 set thread context of 1992	4460	osmnl.exe	90

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1992-10-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1992-13-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1992-15-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1992-18-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1992-17-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3936-25-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3936-26-0x0000000010000000-0x000000001004D000-memory.dmp	upx

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

System Information Discovery
T1082

Program crash 4 IoCs

pid	pid_target	Process	procid_target
3652	3936	WerFault.exe	92
4328	3936	WerFault.exe	92
4392	2260	WerFault.exe	91
4800	2260	WerFault.exe	91

System Location Discovery: System Language Discovery 1 TTPs 6 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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e25d2f5f09c95ea6c0dd5e5db8be55dac4bf913f87e4ac1ab8ce863027432ce1N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	osmnl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	osmnl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Launcher.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
3096	MicrosoftEdgeUpdate.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4460	osmnl.exe
4460	osmnl.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 3916 wrote to memory of 4460	3916	e25d2f5f09c95ea6c0dd5e5db8be55dac4bf913f87e4ac1ab8ce863027432ce1N.exe	86
PID 3916 wrote to memory of 4460	3916	e25d2f5f09c95ea6c0dd5e5db8be55dac4bf913f87e4ac1ab8ce863027432ce1N.exe	86
PID 3916 wrote to memory of 4460	3916	e25d2f5f09c95ea6c0dd5e5db8be55dac4bf913f87e4ac1ab8ce863027432ce1N.exe	86
PID 4460 wrote to memory of 1992	4460	osmnl.exe	90
PID 4460 wrote to memory of 1992	4460	osmnl.exe	90
PID 4460 wrote to memory of 1992	4460	osmnl.exe	90
PID 4460 wrote to memory of 1992	4460	osmnl.exe	90
PID 4460 wrote to memory of 1992	4460	osmnl.exe	90
PID 4460 wrote to memory of 1992	4460	osmnl.exe	90
PID 4460 wrote to memory of 1992	4460	osmnl.exe	90
PID 4460 wrote to memory of 1992	4460	osmnl.exe	90
PID 3916 wrote to memory of 2260	3916	e25d2f5f09c95ea6c0dd5e5db8be55dac4bf913f87e4ac1ab8ce863027432ce1N.exe	91
PID 3916 wrote to memory of 2260	3916	e25d2f5f09c95ea6c0dd5e5db8be55dac4bf913f87e4ac1ab8ce863027432ce1N.exe	91
PID 3916 wrote to memory of 2260	3916	e25d2f5f09c95ea6c0dd5e5db8be55dac4bf913f87e4ac1ab8ce863027432ce1N.exe	91
PID 1992 wrote to memory of 3936	1992	osmnl.exe	92
PID 1992 wrote to memory of 3936	1992	osmnl.exe	92
PID 1992 wrote to memory of 3936	1992	osmnl.exe	92
PID 1992 wrote to memory of 3936	1992	osmnl.exe	92
PID 1992 wrote to memory of 764	1992	osmnl.exe	93
PID 1992 wrote to memory of 764	1992	osmnl.exe	93
PID 1992 wrote to memory of 764	1992	osmnl.exe	93

C:\Users\Admin\AppData\Local\Temp\e25d2f5f09c95ea6c0dd5e5db8be55dac4bf913f87e4ac1ab8ce863027432ce1N.exe
"C:\Users\Admin\AppData\Local\Temp\e25d2f5f09c95ea6c0dd5e5db8be55dac4bf913f87e4ac1ab8ce863027432ce1N.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3916
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\osmnl.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\osmnl.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4460
- - C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\osmnl.exe
    "C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\osmnl.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1992
  - - C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      4⤵
      System Location Discovery: System Language Discovery
      PID:3936
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3936 -s 504
        5⤵
        Program crash
        
        PID:3652
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3936 -s 512
        5⤵
        Program crash
        
        PID:4328
  - - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
      4⤵
      PID:764
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Launcher.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Launcher.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2260
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2260 -s 824
    3⤵
    - Program crash
    PID:4392
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2260 -s 856
    3⤵
    - Program crash
    PID:4800

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3936 -ip 3936
1⤵
PID:2368

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3936 -ip 3936
1⤵
PID:396

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2260 -ip 2260
1⤵
PID:4352

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 2260 -ip 2260
1⤵
PID:2984

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSI1IiBpbnN0YWxsZGF0ZXRpbWU9IjE3MzkyODIxNjkiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4Mzc1MzE4NTEwMTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI0OTQ4MjM5ODMyIi8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:3096

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Launcher.exe

Filesize
799KB

MD5
ebc6be19c16f96c9c32ce8c1e9f305c3

SHA1
cec8bd4eac6a1b32024b62dd0a73fd7e8ae72658

SHA256
0ff0f089829eb2952d33b694161924bde78e0dfb60a80df082ce618ec7b72944

SHA512
a2148001191b10fc6bd2a7bf0b85e00b825d1ac42389ec16b91a4f64bb6096c7257ef1b3a5fb88ccb2b59fa130a2b02d30ad5c85a94894de0ec6f86eb0a071f9

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\osmnl.exe

Filesize
650KB

MD5
26ef202fea01db6426848b2b949c1916

SHA1
9e4fdd1d5f12f891882b8bdbcdf8b8cff9b14f22

SHA256
d020bd6a5b4e40398dd9b21003c5340748f0a8ce5290a9efc3608099b57b4601

SHA512
8388f77ce7955393c91ad6397cce15f5fe51821390e4d422199f06ff6d1a160da4f15c47ad892f26af778bb8402734f5093c6f572f675ef4228ee99fe85ee15d

Download Submit
memory/1992-18-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1992-13-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1992-15-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1992-10-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1992-17-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2260-24-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/2260-23-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/2260-27-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/3936-25-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3936-26-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4460-19-0x0000000000400000-0x0000000000762000-memory.dmp

Filesize
3.4MB

Download
memory/4460-7-0x0000000000400000-0x0000000000762000-memory.dmp

Filesize
3.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads