xtremerat | a309b26db24d1cb12b3017d3644cf13c42a6db10a24365c6bd14ffa4c186e64b

General

Target

a309b26db24d1cb12b3017d3644cf13c42a6db10a24365c6bd14ffa4c186e64b.exe
Size

32KB
MD5

6a95cbee4f05ab34a4840978b5892f40
SHA1

121df9f9fcb58c7cef04990a849c78dc410551cd
SHA256

a309b26db24d1cb12b3017d3644cf13c42a6db10a24365c6bd14ffa4c186e64b
SHA512

376637430b697238b853921c5ed8e276c87ebdeabeae07804b736a384bf8a88892500784ec38048bdf3a8717a15e54b1d941ea948d4fbd696f11cc76cfeca60b
SSDEEP

768:rIsF8HdbKjV8BX7Vy6K7eIVLTxef7K5uI:rIsF5CBX7VX9IRxUG5u

Score

10^/10

Malware Config

Signatures

Detect XtremeRAT payload 7 IoCs

resource	yara_rule
behavioral1/memory/1388-55-0x0000000000C80000-0x0000000000C9D000-memory.dmp	family_xtremerat
behavioral1/memory/1352-58-0x0000000000000000-mapping.dmp	family_xtremerat
behavioral1/memory/1940-63-0x0000000000000000-mapping.dmp	family_xtremerat
behavioral1/memory/1940-66-0x0000000000C80000-0x0000000000C9D000-memory.dmp	family_xtremerat
behavioral1/memory/1352-67-0x0000000000C80000-0x0000000000C9D000-memory.dmp	family_xtremerat
behavioral1/memory/1388-68-0x0000000000C80000-0x0000000000C9D000-memory.dmp	family_xtremerat
behavioral1/memory/1352-69-0x0000000000C80000-0x0000000000C9D000-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 2 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\{5460C4DF-B266-909E-CB58-E32B79832EB2}	a309b26db24d1cb12b3017d3644cf13c42a6db10a24365c6bd14ffa4c186e64b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}\StubPath = "C:\\Windows\\InstallDir\\Server.exe restart"	a309b26db24d1cb12b3017d3644cf13c42a6db10a24365c6bd14ffa4c186e64b.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1388-55-0x0000000000C80000-0x0000000000C9D000-memory.dmp	upx
behavioral1/memory/1940-66-0x0000000000C80000-0x0000000000C9D000-memory.dmp	upx
behavioral1/memory/1352-67-0x0000000000C80000-0x0000000000C9D000-memory.dmp	upx
behavioral1/memory/1388-68-0x0000000000C80000-0x0000000000C9D000-memory.dmp	upx
behavioral1/memory/1352-69-0x0000000000C80000-0x0000000000C9D000-memory.dmp	upx

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	a309b26db24d1cb12b3017d3644cf13c42a6db10a24365c6bd14ffa4c186e64b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\InstallDir\\Server.exe"	a309b26db24d1cb12b3017d3644cf13c42a6db10a24365c6bd14ffa4c186e64b.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run	a309b26db24d1cb12b3017d3644cf13c42a6db10a24365c6bd14ffa4c186e64b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe"	a309b26db24d1cb12b3017d3644cf13c42a6db10a24365c6bd14ffa4c186e64b.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\InstallDir\Server.exe	a309b26db24d1cb12b3017d3644cf13c42a6db10a24365c6bd14ffa4c186e64b.exe
File created	C:\Windows\InstallDir\Server.exe	a309b26db24d1cb12b3017d3644cf13c42a6db10a24365c6bd14ffa4c186e64b.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
1352	explorer.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1388 wrote to memory of 1336	1388	a309b26db24d1cb12b3017d3644cf13c42a6db10a24365c6bd14ffa4c186e64b.exe	26
PID 1388 wrote to memory of 1336	1388	a309b26db24d1cb12b3017d3644cf13c42a6db10a24365c6bd14ffa4c186e64b.exe	26
PID 1388 wrote to memory of 1336	1388	a309b26db24d1cb12b3017d3644cf13c42a6db10a24365c6bd14ffa4c186e64b.exe	26
PID 1388 wrote to memory of 1336	1388	a309b26db24d1cb12b3017d3644cf13c42a6db10a24365c6bd14ffa4c186e64b.exe	26
PID 1388 wrote to memory of 1352	1388	a309b26db24d1cb12b3017d3644cf13c42a6db10a24365c6bd14ffa4c186e64b.exe	27
PID 1388 wrote to memory of 1352	1388	a309b26db24d1cb12b3017d3644cf13c42a6db10a24365c6bd14ffa4c186e64b.exe	27
PID 1388 wrote to memory of 1352	1388	a309b26db24d1cb12b3017d3644cf13c42a6db10a24365c6bd14ffa4c186e64b.exe	27
PID 1388 wrote to memory of 1352	1388	a309b26db24d1cb12b3017d3644cf13c42a6db10a24365c6bd14ffa4c186e64b.exe	27
PID 1388 wrote to memory of 1352	1388	a309b26db24d1cb12b3017d3644cf13c42a6db10a24365c6bd14ffa4c186e64b.exe	27
PID 1388 wrote to memory of 1744	1388	a309b26db24d1cb12b3017d3644cf13c42a6db10a24365c6bd14ffa4c186e64b.exe	28
PID 1388 wrote to memory of 1744	1388	a309b26db24d1cb12b3017d3644cf13c42a6db10a24365c6bd14ffa4c186e64b.exe	28
PID 1388 wrote to memory of 1744	1388	a309b26db24d1cb12b3017d3644cf13c42a6db10a24365c6bd14ffa4c186e64b.exe	28
PID 1388 wrote to memory of 1744	1388	a309b26db24d1cb12b3017d3644cf13c42a6db10a24365c6bd14ffa4c186e64b.exe	28
PID 1388 wrote to memory of 1940	1388	a309b26db24d1cb12b3017d3644cf13c42a6db10a24365c6bd14ffa4c186e64b.exe	29
PID 1388 wrote to memory of 1940	1388	a309b26db24d1cb12b3017d3644cf13c42a6db10a24365c6bd14ffa4c186e64b.exe	29
PID 1388 wrote to memory of 1940	1388	a309b26db24d1cb12b3017d3644cf13c42a6db10a24365c6bd14ffa4c186e64b.exe	29
PID 1388 wrote to memory of 1940	1388	a309b26db24d1cb12b3017d3644cf13c42a6db10a24365c6bd14ffa4c186e64b.exe	29
PID 1388 wrote to memory of 1940	1388	a309b26db24d1cb12b3017d3644cf13c42a6db10a24365c6bd14ffa4c186e64b.exe	29

C:\Users\Admin\AppData\Local\Temp\a309b26db24d1cb12b3017d3644cf13c42a6db10a24365c6bd14ffa4c186e64b.exe
"C:\Users\Admin\AppData\Local\Temp\a309b26db24d1cb12b3017d3644cf13c42a6db10a24365c6bd14ffa4c186e64b.exe"
1⤵
- Modifies Installed Components in the registry
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1388
- C:\Program Files\Internet Explorer\iexplore.exe
  "C:\Program Files\Internet Explorer\iexplore.exe"
  2⤵
  PID:1336
- C:\Windows\SysWOW64\explorer.exe
  explorer.exe
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:1352
- C:\Program Files\Internet Explorer\iexplore.exe
  "C:\Program Files\Internet Explorer\iexplore.exe"
  2⤵
  PID:1744
- C:\Windows\SysWOW64\explorer.exe
  explorer.exe
  2⤵
  PID:1940

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

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Downloads

memory/1352-56-0x0000000000C80000-0x0000000000C9D000-memory.dmp

Filesize
116KB

Download
memory/1352-60-0x0000000074E11000-0x0000000074E13000-memory.dmp

Filesize
8KB

Download
memory/1352-67-0x0000000000C80000-0x0000000000C9D000-memory.dmp

Filesize
116KB

Download
memory/1352-69-0x0000000000C80000-0x0000000000C9D000-memory.dmp

Filesize
116KB

Download
memory/1388-54-0x00000000768A1000-0x00000000768A3000-memory.dmp

Filesize
8KB

Download
memory/1388-55-0x0000000000C80000-0x0000000000C9D000-memory.dmp

Filesize
116KB

Download
memory/1388-68-0x0000000000C80000-0x0000000000C9D000-memory.dmp

Filesize
116KB

Download
memory/1940-66-0x0000000000C80000-0x0000000000C9D000-memory.dmp

Filesize
116KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads