xtremerat | f107b5194dd52d81cdc4db22937344db1d77658a106095708563d9b7a250b724

General

Target

c6e61e1c71ffe0bfada815f3bbd030c2.exe
Size

224KB
MD5

c6e61e1c71ffe0bfada815f3bbd030c2
SHA1

b6062e39f90190afc49f9263c3d6c142463ba4b8
SHA256

f107b5194dd52d81cdc4db22937344db1d77658a106095708563d9b7a250b724
SHA512

5dc097d3c503a3a499623b133c7f485f4f493122cb72d0ca20f6a83a83537203de9932efb34c22fb2fc9869b1857468d6d6451d42feada9d5256aa925897333a
SSDEEP

6144:PJtDhxzkeP0G5xSeZWqpJzI3e3OT9uiGKrQ:PJtDPzkiL5xSeZJpue3uuiG5

Score

10^/10

xtremerat persistence rat spyware

Malware Config

Extracted

Family

xtremerat

C2

kita2011.zapto.org

Ÿ杋效愨摈kita2011.zapto.org

kita2011.dyndns-ip.com

Signatures

Detect XtremeRAT payload 11 IoCs

resource	yara_rule
behavioral2/memory/1676-3-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1676-4-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1676-6-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1676-7-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1944-8-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2392-9-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1676-10-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2392-13-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2392-14-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1944-15-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2392-16-0x0000000010000000-0x000000001004A000-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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}\StubPath = "C:\\Windows\\InstallDir\\Server.exe restart"	notepad.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}	notepad.exe

Deletes itself 1 IoCs

pid	Process
2392	notepad.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:\\Windows\\InstallDir\\Server.exe"	notepad.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe"	notepad.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3424 set thread context of 1676	3424	c6e61e1c71ffe0bfada815f3bbd030c2.exe	97

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\InstallDir\Server.exe	notepad.exe
File created	C:\Windows\InstallDir\Server.exe	notepad.exe
File opened for modification	C:\Windows\InstallDir\	notepad.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
2508	1944	WerFault.exe	98
2344	2392	WerFault.exe	99
4684	1944	WerFault.exe	98
2112	2392	WerFault.exe	99

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3424	c6e61e1c71ffe0bfada815f3bbd030c2.exe
2392	notepad.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 3424 wrote to memory of 1676	3424	c6e61e1c71ffe0bfada815f3bbd030c2.exe	97
PID 3424 wrote to memory of 1676	3424	c6e61e1c71ffe0bfada815f3bbd030c2.exe	97
PID 3424 wrote to memory of 1676	3424	c6e61e1c71ffe0bfada815f3bbd030c2.exe	97
PID 3424 wrote to memory of 1676	3424	c6e61e1c71ffe0bfada815f3bbd030c2.exe	97
PID 3424 wrote to memory of 1676	3424	c6e61e1c71ffe0bfada815f3bbd030c2.exe	97
PID 3424 wrote to memory of 1676	3424	c6e61e1c71ffe0bfada815f3bbd030c2.exe	97
PID 3424 wrote to memory of 1676	3424	c6e61e1c71ffe0bfada815f3bbd030c2.exe	97
PID 3424 wrote to memory of 1676	3424	c6e61e1c71ffe0bfada815f3bbd030c2.exe	97
PID 3424 wrote to memory of 1676	3424	c6e61e1c71ffe0bfada815f3bbd030c2.exe	97
PID 3424 wrote to memory of 1676	3424	c6e61e1c71ffe0bfada815f3bbd030c2.exe	97
PID 3424 wrote to memory of 1676	3424	c6e61e1c71ffe0bfada815f3bbd030c2.exe	97
PID 3424 wrote to memory of 1676	3424	c6e61e1c71ffe0bfada815f3bbd030c2.exe	97
PID 3424 wrote to memory of 1676	3424	c6e61e1c71ffe0bfada815f3bbd030c2.exe	97
PID 1676 wrote to memory of 1944	1676	c6e61e1c71ffe0bfada815f3bbd030c2.exe	98
PID 1676 wrote to memory of 1944	1676	c6e61e1c71ffe0bfada815f3bbd030c2.exe	98
PID 1676 wrote to memory of 1944	1676	c6e61e1c71ffe0bfada815f3bbd030c2.exe	98
PID 1676 wrote to memory of 1944	1676	c6e61e1c71ffe0bfada815f3bbd030c2.exe	98
PID 1676 wrote to memory of 2392	1676	c6e61e1c71ffe0bfada815f3bbd030c2.exe	99
PID 1676 wrote to memory of 2392	1676	c6e61e1c71ffe0bfada815f3bbd030c2.exe	99
PID 1676 wrote to memory of 2392	1676	c6e61e1c71ffe0bfada815f3bbd030c2.exe	99
PID 1676 wrote to memory of 2392	1676	c6e61e1c71ffe0bfada815f3bbd030c2.exe	99

C:\Users\Admin\AppData\Local\Temp\c6e61e1c71ffe0bfada815f3bbd030c2.exe
"C:\Users\Admin\AppData\Local\Temp\c6e61e1c71ffe0bfada815f3bbd030c2.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3424
- C:\Users\Admin\AppData\Local\Temp\c6e61e1c71ffe0bfada815f3bbd030c2.exe
  "C:\Users\Admin\AppData\Local\Temp\c6e61e1c71ffe0bfada815f3bbd030c2.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1676
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    PID:1944
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1944 -s 492
      4⤵
      Program crash
      PID:2508
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1944 -s 500
      4⤵
      Program crash
      PID:4684
- - C:\Windows\SysWOW64\notepad.exe
    notepad.exe
    3⤵
    - Modifies Installed Components in the registry
    - Deletes itself
    - Adds Run key to start application
    - Drops file in Windows directory
    - Suspicious use of SetWindowsHookEx
    PID:2392
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2392 -s 988
      4⤵
      Program crash
      PID:2344
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2392 -s 996
      4⤵
      Program crash
      PID:2112

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1944 -ip 1944
1⤵
PID:4352

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2392 -ip 2392
1⤵
PID:3104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 1944 -ip 1944
1⤵
PID:2084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2392 -ip 2392
1⤵
PID:4772

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3996 --field-trial-handle=3084,i,4016110471176367543,14287608422419064331,262144 --variations-seed-version /prefetch:8
1⤵
PID:2292

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/1676-10-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1676-3-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1676-4-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1676-6-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1676-7-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1944-15-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1944-8-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2392-13-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2392-9-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2392-14-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2392-16-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/3424-0-0x0000000000400000-0x000000000056C000-memory.dmp

Filesize
1.4MB

Download
memory/3424-5-0x0000000000400000-0x000000000056C000-memory.dmp

Filesize
1.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads