xtremerat | d52a85c79b6063fe69276eb6b63a43b767de7eed0fa5b35968ebc46ff88f51dc

General

Target

Crysis2_v1-9_Trainer/Crysis2_v1-9_Trainer.exe
Size

102KB
MD5

731c9c3d522ecf0538815e35577dd373
SHA1

c075a1e83284924aea80add9023922f5bd7b2ebc
SHA256

51af50494be139e4f2e9efa19501918aff117f6ef2fe0451f62457006117abc2
SHA512

7e4d92717a9a801e4c100a4dac689a8393058cef0e9438a5506b774748ed84164b5ae1c88624cd9ccb0302bd9b9cd18cc384f36948fc2f65c5303c54c9447c13
SSDEEP

3072:m5LLpTCpf4zcugG3gVYhGWtiyn9ceSj83/U:mZNCvAsWtiy98wvU

Score

10^/10

xtremerat discovery persistence rat spyware

Malware Config

Extracted

Family

xtremerat

C2

ᠼhoshx.no-ip.org

c_209hoshx.no-ip.org

Signatures

Detect XtremeRAT payload 7 IoCs

resource	yara_rule
behavioral2/memory/1068-0-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1068-1-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1068-2-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1068-3-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3872-4-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1068-5-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3872-6-0x0000000010000000-0x000000001004A000-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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3948 set thread context of 1068	3948	Crysis2_v1-9_Trainer.exe	88

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
4164	3872	WerFault.exe	90
3068	3872	WerFault.exe	90

System Location Discovery: System Language Discovery 1 TTPs 3 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	Crysis2_v1-9_Trainer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Crysis2_v1-9_Trainer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 3948 wrote to memory of 1068	3948	Crysis2_v1-9_Trainer.exe	88
PID 3948 wrote to memory of 1068	3948	Crysis2_v1-9_Trainer.exe	88
PID 3948 wrote to memory of 1068	3948	Crysis2_v1-9_Trainer.exe	88
PID 3948 wrote to memory of 1068	3948	Crysis2_v1-9_Trainer.exe	88
PID 3948 wrote to memory of 1068	3948	Crysis2_v1-9_Trainer.exe	88
PID 3948 wrote to memory of 1068	3948	Crysis2_v1-9_Trainer.exe	88
PID 3948 wrote to memory of 1068	3948	Crysis2_v1-9_Trainer.exe	88
PID 3948 wrote to memory of 1068	3948	Crysis2_v1-9_Trainer.exe	88
PID 3948 wrote to memory of 1068	3948	Crysis2_v1-9_Trainer.exe	88
PID 3948 wrote to memory of 1068	3948	Crysis2_v1-9_Trainer.exe	88
PID 3948 wrote to memory of 1068	3948	Crysis2_v1-9_Trainer.exe	88
PID 3948 wrote to memory of 1068	3948	Crysis2_v1-9_Trainer.exe	88
PID 3948 wrote to memory of 1068	3948	Crysis2_v1-9_Trainer.exe	88
PID 1068 wrote to memory of 3872	1068	Crysis2_v1-9_Trainer.exe	90
PID 1068 wrote to memory of 3872	1068	Crysis2_v1-9_Trainer.exe	90
PID 1068 wrote to memory of 3872	1068	Crysis2_v1-9_Trainer.exe	90
PID 1068 wrote to memory of 3872	1068	Crysis2_v1-9_Trainer.exe	90
PID 1068 wrote to memory of 4640	1068	Crysis2_v1-9_Trainer.exe	91
PID 1068 wrote to memory of 4640	1068	Crysis2_v1-9_Trainer.exe	91
PID 1068 wrote to memory of 4640	1068	Crysis2_v1-9_Trainer.exe	91

C:\Users\Admin\AppData\Local\Temp\Crysis2_v1-9_Trainer\Crysis2_v1-9_Trainer.exe
"C:\Users\Admin\AppData\Local\Temp\Crysis2_v1-9_Trainer\Crysis2_v1-9_Trainer.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3948
- C:\Users\Admin\AppData\Local\Temp\Crysis2_v1-9_Trainer\Crysis2_v1-9_Trainer.exe
  "C:\Users\Admin\AppData\Local\Temp\Crysis2_v1-9_Trainer\Crysis2_v1-9_Trainer.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1068
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3872
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3872 -s 484
      4⤵
      Program crash
      PID:4164
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3872 -s 504
      4⤵
      Program crash
      PID:3068
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:4640

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3872 -ip 3872
1⤵
PID:4424

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3872 -ip 3872
1⤵
PID:1268

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1068-0-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1068-1-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1068-2-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1068-3-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1068-5-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/3872-4-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/3872-6-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download

Analysis

Sharing