xtremerat | cfed81dd43d3deaeab150fd6d08320b24b5b3c1fcfe35c6a6bbbfd2dd15d9791

General

Target

4a99ccc1621bb29fc6d21e9e0c2b9f8e_JaffaCakes118.exe
Size

45KB
MD5

4a99ccc1621bb29fc6d21e9e0c2b9f8e
SHA1

cfd4083039fbb6cefa32efbe1e6825ee19e2484a
SHA256

cfed81dd43d3deaeab150fd6d08320b24b5b3c1fcfe35c6a6bbbfd2dd15d9791
SHA512

88e6592bfc33b46716751da1cb3e65ade03da5f73d3d29bca44c8356ffb118609aa0e9dc293ef61288f98dec028c7d9e743ffa78f5f2809b75219287d209e2df
SSDEEP

768:9Br+tjFY90iY6W1jwmDzKgEFQXaklMIAnH8hwfOgw0cezoZzJ:jyRh31jxPEFQXak+H84bnoZzJ

Score

10^/10

xtremerat discovery persistence rat spyware

Malware Config

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral1/memory/2340-5-0x0000000000C80000-0x0000000000C93000-memory.dmp	family_xtremerat
behavioral1/memory/2504-6-0x0000000000C80000-0x0000000000C93000-memory.dmp	family_xtremerat
behavioral1/memory/2340-8-0x0000000000C80000-0x0000000000C93000-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

Boot or Logon Autostart Execution: Active Setup 2 TTPs 2 IoCs

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

persistence

Active Setup

T1547.014

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}	4a99ccc1621bb29fc6d21e9e0c2b9f8e_JaffaCakes118.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"	4a99ccc1621bb29fc6d21e9e0c2b9f8e_JaffaCakes118.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\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe"	4a99ccc1621bb29fc6d21e9e0c2b9f8e_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\InstallDir\\Server.exe"	4a99ccc1621bb29fc6d21e9e0c2b9f8e_JaffaCakes118.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\InstallDir\Server.exe	4a99ccc1621bb29fc6d21e9e0c2b9f8e_JaffaCakes118.exe
File created	C:\Windows\InstallDir\Server.exe	4a99ccc1621bb29fc6d21e9e0c2b9f8e_JaffaCakes118.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 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	4a99ccc1621bb29fc6d21e9e0c2b9f8e_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2340	explorer.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2504 wrote to memory of 1896	2504	4a99ccc1621bb29fc6d21e9e0c2b9f8e_JaffaCakes118.exe	31
PID 2504 wrote to memory of 1896	2504	4a99ccc1621bb29fc6d21e9e0c2b9f8e_JaffaCakes118.exe	31
PID 2504 wrote to memory of 1896	2504	4a99ccc1621bb29fc6d21e9e0c2b9f8e_JaffaCakes118.exe	31
PID 2504 wrote to memory of 1896	2504	4a99ccc1621bb29fc6d21e9e0c2b9f8e_JaffaCakes118.exe	31
PID 2504 wrote to memory of 2340	2504	4a99ccc1621bb29fc6d21e9e0c2b9f8e_JaffaCakes118.exe	32
PID 2504 wrote to memory of 2340	2504	4a99ccc1621bb29fc6d21e9e0c2b9f8e_JaffaCakes118.exe	32
PID 2504 wrote to memory of 2340	2504	4a99ccc1621bb29fc6d21e9e0c2b9f8e_JaffaCakes118.exe	32
PID 2504 wrote to memory of 2340	2504	4a99ccc1621bb29fc6d21e9e0c2b9f8e_JaffaCakes118.exe	32
PID 2504 wrote to memory of 2340	2504	4a99ccc1621bb29fc6d21e9e0c2b9f8e_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\4a99ccc1621bb29fc6d21e9e0c2b9f8e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4a99ccc1621bb29fc6d21e9e0c2b9f8e_JaffaCakes118.exe"
1⤵
- Boot or Logon Autostart Execution: Active Setup
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2504
- C:\Program Files\Internet Explorer\iexplore.exe
  "C:\Program Files\Internet Explorer\iexplore.exe"
  2⤵
  PID:1896
- C:\Windows\SysWOW64\explorer.exe
  explorer.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2340

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

2

T1112

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

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Downloads

memory/2340-3-0x0000000000C80000-0x0000000000C93000-memory.dmp

Filesize
76KB

Download
memory/2340-5-0x0000000000C80000-0x0000000000C93000-memory.dmp

Filesize
76KB

Download
memory/2340-8-0x0000000000C80000-0x0000000000C93000-memory.dmp

Filesize
76KB

Download
memory/2504-6-0x0000000000C80000-0x0000000000C93000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads