xtremerat | ff6370d7ca311c96c4f4a45e899ad86ad520a7039c94051438830888faeaba9a

General

Target
9148a68cc64a0ba3c0a541f666526b90.exe
Size 248KB
Sample240205-hbdm4aegbj
SHA256 ff6370d7ca311c96c4f4a45e899ad86ad520a7039c94051438830888faeaba9a
MD5 9148a68cc64a0ba3c0a541f666526b90
SHA1 adeb03e2d2faa2522d404dcf23edc02c2b0e9e1b
SHA512 09f7cd502138973546c55564b212437924518640a41940b5444cc5b9d34e6bb3e530b43de4e382f70a0d707bcbedecd54593a4e683143f967cbbc1e82518bbec
SSDEEP 6144:ULPILXqdScn3bpDGs8BcMMeU2kMlm4q4AgCNWLIwoJQF9VJ:ULPnVndvmxnUz4AgSCIUn3
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xtremerat persistence rat spyware

Malware Config

Extracted

Family

xtremerat

C2

wer99.no-ip.org

Signatures

Detect XtremeRAT payload 11 IoCs

resource	yara_rule
behavioral2/memory/2372-3-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2372-4-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2372-6-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2372-7-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3268-8-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3536-9-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3536-16-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3268-15-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3536-14-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3536-13-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2372-10-0x0000000010000000-0x000000001004A000-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}	calc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}\StubPath = "C:\\Program Files (x86)\\InstallDir\\Server.exe restart"	calc.exe

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:\\Program Files (x86)\\InstallDir\\Server.exe"	calc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Program Files (x86)\\InstallDir\\Server.exe"	calc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4488 set thread context of 2372	4488	9148a68cc64a0ba3c0a541f666526b90.exe	85

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\InstallDir\Server.exe	calc.exe
File created	C:\Program Files (x86)\InstallDir\Server.exe	calc.exe
File opened for modification	C:\Program Files (x86)\InstallDir\	calc.exe

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
468	3268	WerFault.exe	86
1496	3536	WerFault.exe	87
3236	3536	WerFault.exe	87
4916	3268	WerFault.exe	86

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4488	9148a68cc64a0ba3c0a541f666526b90.exe
3536	calc.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4488 wrote to memory of 2372	4488	9148a68cc64a0ba3c0a541f666526b90.exe	85
PID 4488 wrote to memory of 2372	4488	9148a68cc64a0ba3c0a541f666526b90.exe	85
PID 4488 wrote to memory of 2372	4488	9148a68cc64a0ba3c0a541f666526b90.exe	85
PID 4488 wrote to memory of 2372	4488	9148a68cc64a0ba3c0a541f666526b90.exe	85
PID 4488 wrote to memory of 2372	4488	9148a68cc64a0ba3c0a541f666526b90.exe	85
PID 4488 wrote to memory of 2372	4488	9148a68cc64a0ba3c0a541f666526b90.exe	85
PID 4488 wrote to memory of 2372	4488	9148a68cc64a0ba3c0a541f666526b90.exe	85
PID 4488 wrote to memory of 2372	4488	9148a68cc64a0ba3c0a541f666526b90.exe	85
PID 4488 wrote to memory of 2372	4488	9148a68cc64a0ba3c0a541f666526b90.exe	85
PID 4488 wrote to memory of 2372	4488	9148a68cc64a0ba3c0a541f666526b90.exe	85
PID 4488 wrote to memory of 2372	4488	9148a68cc64a0ba3c0a541f666526b90.exe	85
PID 4488 wrote to memory of 2372	4488	9148a68cc64a0ba3c0a541f666526b90.exe	85
PID 4488 wrote to memory of 2372	4488	9148a68cc64a0ba3c0a541f666526b90.exe	85
PID 2372 wrote to memory of 3268	2372	9148a68cc64a0ba3c0a541f666526b90.EXE	86
PID 2372 wrote to memory of 3268	2372	9148a68cc64a0ba3c0a541f666526b90.EXE	86
PID 2372 wrote to memory of 3268	2372	9148a68cc64a0ba3c0a541f666526b90.EXE	86
PID 2372 wrote to memory of 3268	2372	9148a68cc64a0ba3c0a541f666526b90.EXE	86
PID 2372 wrote to memory of 3536	2372	9148a68cc64a0ba3c0a541f666526b90.EXE	87
PID 2372 wrote to memory of 3536	2372	9148a68cc64a0ba3c0a541f666526b90.EXE	87
PID 2372 wrote to memory of 3536	2372	9148a68cc64a0ba3c0a541f666526b90.EXE	87
PID 2372 wrote to memory of 3536	2372	9148a68cc64a0ba3c0a541f666526b90.EXE	87

C:\Users\Admin\AppData\Local\Temp\9148a68cc64a0ba3c0a541f666526b90.exe
"C:\Users\Admin\AppData\Local\Temp\9148a68cc64a0ba3c0a541f666526b90.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4488
- C:\Users\Admin\AppData\Local\Temp\9148a68cc64a0ba3c0a541f666526b90.EXE
  "C:\Users\Admin\AppData\Local\Temp\9148a68cc64a0ba3c0a541f666526b90.EXE"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2372
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    PID:3268
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3268 -s 484
      4⤵
      Program crash
      PID:468
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3268 -s 492
      4⤵
      Program crash
      PID:4916
- - C:\Windows\SysWOW64\calc.exe
    calc.exe
    3⤵
    - Modifies Installed Components in the registry
    - Adds Run key to start application
    - Drops file in Program Files directory
    - Suspicious use of SetWindowsHookEx
    PID:3536
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3536 -s 992
      4⤵
      Program crash
      PID:1496
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3536 -s 984
      4⤵
      Program crash
      PID:3236

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 3268 -ip 3268
1⤵
PID:1660

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3268 -ip 3268
1⤵
PID:1880

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3536 -ip 3536
1⤵
PID:4236

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3536 -ip 3536
1⤵
PID:5068

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2372-7-0x0000000010000000-0x000000001004A000-memory.dmp

Download

memory/2372-3-0x0000000010000000-0x000000001004A000-memory.dmp

Download

memory/2372-4-0x0000000010000000-0x000000001004A000-memory.dmp

Download

memory/2372-10-0x0000000010000000-0x000000001004A000-memory.dmp

Download

memory/2372-6-0x0000000010000000-0x000000001004A000-memory.dmp

Download

memory/3268-15-0x0000000010000000-0x000000001004A000-memory.dmp

Download

memory/3268-8-0x0000000010000000-0x000000001004A000-memory.dmp

Download

memory/3536-9-0x0000000010000000-0x000000001004A000-memory.dmp

Download

memory/3536-16-0x0000000010000000-0x000000001004A000-memory.dmp

Download

memory/3536-14-0x0000000010000000-0x000000001004A000-memory.dmp

Download

memory/3536-13-0x0000000010000000-0x000000001004A000-memory.dmp

Download

memory/4488-0-0x0000000000400000-0x00000000004C2000-memory.dmp

Download

memory/4488-5-0x0000000000400000-0x00000000004C2000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads