xtremerat | 01f10db385d50b10de4916783d8e9d187af1deda13d7512f801a8e7773512ac8

General

Target
8415fa37eb630db0d0663294a6925a58.exe
Size 526KB
Sample240131-lpjm2shde8
SHA256 01f10db385d50b10de4916783d8e9d187af1deda13d7512f801a8e7773512ac8
MD5 8415fa37eb630db0d0663294a6925a58
SHA1 843fcd503968de01b0a898d877500ab7ba5c1a8c
SHA512 06c08a16dc19c6763b547714b6c1a53379354bb7d8a6503f35cf921db48ed8e8d8912da398cdfba1dcb58ff20887383a8368444e31dadac44465dd9234fa8507
SSDEEP 6144:TFYu7hnQk0AKKRuiCPM2JHqF1CyOjFy9MW7TL2EnIgK54IQzeeeL4/o:TThd3RyrJ2CyOJCpIgKKM4g
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

Malware Config

Signatures

Detect XtremeRAT payload 8 IoCs

resource	yara_rule
behavioral2/memory/5040-4-0x0000000010000000-0x0000000010045000-memory.dmp	family_xtremerat
behavioral2/memory/5040-3-0x0000000010000000-0x0000000010045000-memory.dmp	family_xtremerat
behavioral2/memory/5040-6-0x0000000010000000-0x0000000010045000-memory.dmp	family_xtremerat
behavioral2/memory/5040-7-0x0000000010000000-0x0000000010045000-memory.dmp	family_xtremerat
behavioral2/memory/4612-8-0x0000000010000000-0x0000000010045000-memory.dmp	family_xtremerat
behavioral2/memory/5040-11-0x0000000010000000-0x0000000010045000-memory.dmp	family_xtremerat
behavioral2/memory/4612-12-0x0000000010000000-0x0000000010045000-memory.dmp	family_xtremerat
behavioral2/memory/5040-13-0x0000000010000000-0x0000000010045000-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\{5460C4DF-B266-909E-CB58-E32B79832EB2}	8415fa37eb630db0d0663294a6925a58.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"	8415fa37eb630db0d0663294a6925a58.EXE

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1244-0-0x0000000000400000-0x00000000005DE000-memory.dmp	upx
behavioral2/memory/1244-5-0x0000000000400000-0x00000000005DE000-memory.dmp	upx

Adds Run key to start application 2 TTPs 3 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\\InstallDir\\Server.exe"	8415fa37eb630db0d0663294a6925a58.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe"	8415fa37eb630db0d0663294a6925a58.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "㩃啜敳獲䅜浤湩䅜灰慄慴䱜捯污呜浥屰㐸㔱慦㜳扥㌶搰ぢつ㘶㈳㐹㙡㈹愵㠵䔮䕘"	8415fa37eb630db0d0663294a6925a58.EXE

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1244 set thread context of 5040	1244	8415fa37eb630db0d0663294a6925a58.exe	85

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\InstallDir\	8415fa37eb630db0d0663294a6925a58.EXE
File opened for modification	C:\Windows\InstallDir\Server.exe	8415fa37eb630db0d0663294a6925a58.EXE
File created	C:\Windows\InstallDir\Server.exe	8415fa37eb630db0d0663294a6925a58.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
3604	4612	WerFault.exe	86
4032	4612	WerFault.exe	86

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1244	8415fa37eb630db0d0663294a6925a58.exe
5040	8415fa37eb630db0d0663294a6925a58.EXE

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1244 wrote to memory of 5040	1244	8415fa37eb630db0d0663294a6925a58.exe	85
PID 1244 wrote to memory of 5040	1244	8415fa37eb630db0d0663294a6925a58.exe	85
PID 1244 wrote to memory of 5040	1244	8415fa37eb630db0d0663294a6925a58.exe	85
PID 1244 wrote to memory of 5040	1244	8415fa37eb630db0d0663294a6925a58.exe	85
PID 1244 wrote to memory of 5040	1244	8415fa37eb630db0d0663294a6925a58.exe	85
PID 1244 wrote to memory of 5040	1244	8415fa37eb630db0d0663294a6925a58.exe	85
PID 1244 wrote to memory of 5040	1244	8415fa37eb630db0d0663294a6925a58.exe	85
PID 1244 wrote to memory of 5040	1244	8415fa37eb630db0d0663294a6925a58.exe	85
PID 1244 wrote to memory of 5040	1244	8415fa37eb630db0d0663294a6925a58.exe	85
PID 1244 wrote to memory of 5040	1244	8415fa37eb630db0d0663294a6925a58.exe	85
PID 1244 wrote to memory of 5040	1244	8415fa37eb630db0d0663294a6925a58.exe	85
PID 1244 wrote to memory of 5040	1244	8415fa37eb630db0d0663294a6925a58.exe	85
PID 1244 wrote to memory of 5040	1244	8415fa37eb630db0d0663294a6925a58.exe	85
PID 5040 wrote to memory of 4612	5040	8415fa37eb630db0d0663294a6925a58.EXE	86
PID 5040 wrote to memory of 4612	5040	8415fa37eb630db0d0663294a6925a58.EXE	86
PID 5040 wrote to memory of 4612	5040	8415fa37eb630db0d0663294a6925a58.EXE	86
PID 5040 wrote to memory of 4612	5040	8415fa37eb630db0d0663294a6925a58.EXE	86

C:\Users\Admin\AppData\Local\Temp\8415fa37eb630db0d0663294a6925a58.exe
"C:\Users\Admin\AppData\Local\Temp\8415fa37eb630db0d0663294a6925a58.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1244
- C:\Users\Admin\AppData\Local\Temp\8415fa37eb630db0d0663294a6925a58.EXE
  "C:\Users\Admin\AppData\Local\Temp\8415fa37eb630db0d0663294a6925a58.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:5040
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    PID:4612
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4612 -s 476
      4⤵
      Program crash
      PID:3604
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4612 -s 488
      4⤵
      Program crash
      PID:4032

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4612 -ip 4612
1⤵
PID:872

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4612 -ip 4612
1⤵
PID:2376

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/1244-0-0x0000000000400000-0x00000000005DE000-memory.dmp

Download

memory/1244-5-0x0000000000400000-0x00000000005DE000-memory.dmp

Download

memory/4612-8-0x0000000010000000-0x0000000010045000-memory.dmp

Download

memory/4612-12-0x0000000010000000-0x0000000010045000-memory.dmp

Download

memory/5040-4-0x0000000010000000-0x0000000010045000-memory.dmp

Download

memory/5040-3-0x0000000010000000-0x0000000010045000-memory.dmp

Download

memory/5040-6-0x0000000010000000-0x0000000010045000-memory.dmp

Download

memory/5040-7-0x0000000010000000-0x0000000010045000-memory.dmp

Download

memory/5040-11-0x0000000010000000-0x0000000010045000-memory.dmp

Download

memory/5040-13-0x0000000010000000-0x0000000010045000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads