xtremerat | 5540c8ac959e7c8fe851e4cf20eb0c6fedfcb935bbd55d58bec8a237926adbef

General

Target
9d9a6bece14d2df16d91b125d52f94f2.exe
Size 87KB
Sample240215-ly97csee42
SHA256 5540c8ac959e7c8fe851e4cf20eb0c6fedfcb935bbd55d58bec8a237926adbef
MD5 9d9a6bece14d2df16d91b125d52f94f2
SHA1 eda773c16f5210a90b9ade09ca0753bd31a0308b
SHA512 70aa55bb8e9fa09aaf8335e5dce1bbd79dc1f4f39b7b0fd1f872dbdd7bd0b725b8949a62002f7eded1731116c718369f129878fb26ea832b5cacfa5d76c68323
SSDEEP 1536:n/vQa59DqqI94023pLqRuSijxODUzXnE99apJTcvq+kO0w:nV3G40AJqkjxOF9c3cy+kC
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

Malware Config

Signatures

Detect XtremeRAT payload 7 IoCs

resource	yara_rule
behavioral2/memory/2204-7-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2204-9-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4660-10-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2204-13-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2204-14-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4660-15-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2204-16-0x0000000010000000-0x000000001004D000-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

Modifies Installed Components in the registry 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{H608055G-BY2G-3G61-SA6I-5GOV523G1711}	9d9a6bece14d2df16d91b125d52f94f2.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{H608055G-BY2G-3G61-SA6I-5GOV523G1711}\StubPath = "C:\\Windows\\trt\\efc.exe restart"	9d9a6bece14d2df16d91b125d52f94f2.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2204-3-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2204-6-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2204-7-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2204-9-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4660-10-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2204-13-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2204-14-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4660-15-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2204-16-0x0000000010000000-0x000000001004D000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 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:\\Windows\\trt\\efc.exe"	9d9a6bece14d2df16d91b125d52f94f2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\trt\\efc.exe"	9d9a6bece14d2df16d91b125d52f94f2.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2112 set thread context of 2204	2112	9d9a6bece14d2df16d91b125d52f94f2.exe	86

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\trt\efc.exe	9d9a6bece14d2df16d91b125d52f94f2.exe
File opened for modification	C:\Windows\trt\	9d9a6bece14d2df16d91b125d52f94f2.exe
File opened for modification	C:\Windows\trt\efc.exe	9d9a6bece14d2df16d91b125d52f94f2.exe

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4640	4660	WerFault.exe	87
4132	4660	WerFault.exe	87

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2112	9d9a6bece14d2df16d91b125d52f94f2.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2204	9d9a6bece14d2df16d91b125d52f94f2.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2112 wrote to memory of 2204	2112	9d9a6bece14d2df16d91b125d52f94f2.exe	86
PID 2112 wrote to memory of 2204	2112	9d9a6bece14d2df16d91b125d52f94f2.exe	86
PID 2112 wrote to memory of 2204	2112	9d9a6bece14d2df16d91b125d52f94f2.exe	86
PID 2112 wrote to memory of 2204	2112	9d9a6bece14d2df16d91b125d52f94f2.exe	86
PID 2112 wrote to memory of 2204	2112	9d9a6bece14d2df16d91b125d52f94f2.exe	86
PID 2112 wrote to memory of 2204	2112	9d9a6bece14d2df16d91b125d52f94f2.exe	86
PID 2112 wrote to memory of 2204	2112	9d9a6bece14d2df16d91b125d52f94f2.exe	86
PID 2112 wrote to memory of 2204	2112	9d9a6bece14d2df16d91b125d52f94f2.exe	86
PID 2204 wrote to memory of 4660	2204	9d9a6bece14d2df16d91b125d52f94f2.exe	87
PID 2204 wrote to memory of 4660	2204	9d9a6bece14d2df16d91b125d52f94f2.exe	87
PID 2204 wrote to memory of 4660	2204	9d9a6bece14d2df16d91b125d52f94f2.exe	87
PID 2204 wrote to memory of 4660	2204	9d9a6bece14d2df16d91b125d52f94f2.exe	87

C:\Users\Admin\AppData\Local\Temp\9d9a6bece14d2df16d91b125d52f94f2.exe
"C:\Users\Admin\AppData\Local\Temp\9d9a6bece14d2df16d91b125d52f94f2.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2112
- C:\Users\Admin\AppData\Local\Temp\9d9a6bece14d2df16d91b125d52f94f2.exe
  "C:\Users\Admin\AppData\Local\Temp\9d9a6bece14d2df16d91b125d52f94f2.exe"
  2⤵
  - Modifies Installed Components in the registry
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2204
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    PID:4660
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4660 -s 480
      4⤵
      Program crash
      PID:4640
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4660 -s 488
      4⤵
      Program crash
      PID:4132

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4660 -ip 4660
1⤵
PID:536

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 4660 -ip 4660
1⤵
PID:4408

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

2

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

memory/2112-8-0x00000000747B0000-0x0000000074D61000-memory.dmp

Download

memory/2112-1-0x00000000747B0000-0x0000000074D61000-memory.dmp

Download

memory/2112-2-0x0000000000C00000-0x0000000000C10000-memory.dmp

Download

memory/2112-0-0x00000000747B0000-0x0000000074D61000-memory.dmp

Download

memory/2204-3-0x0000000010000000-0x000000001004D000-memory.dmp

Download

memory/2204-7-0x0000000010000000-0x000000001004D000-memory.dmp

Download

memory/2204-6-0x0000000010000000-0x000000001004D000-memory.dmp

Download

memory/2204-9-0x0000000010000000-0x000000001004D000-memory.dmp

Download

memory/2204-13-0x0000000010000000-0x000000001004D000-memory.dmp

Download

memory/2204-14-0x0000000010000000-0x000000001004D000-memory.dmp

Download

memory/2204-16-0x0000000010000000-0x000000001004D000-memory.dmp

Download

memory/4660-10-0x0000000010000000-0x000000001004D000-memory.dmp

Download

memory/4660-15-0x0000000010000000-0x000000001004D000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads