xtremerat | b1c2a2ebf96bfc726f04f7b601a8e0c2383fd54b8de862c4c9b6754c9a31a0d7

General

Target

c2995fd46e8923c6cc8225674f0eb6b0_JaffaCakes118.exe
Size

304KB
MD5

c2995fd46e8923c6cc8225674f0eb6b0
SHA1

227cd36930efdbab49bd6bf3df8739085a4250d4
SHA256

b1c2a2ebf96bfc726f04f7b601a8e0c2383fd54b8de862c4c9b6754c9a31a0d7
SHA512

5936311120223c2c35ded85949cade9c6cf04d305509adf1bcadc0295a32141dfffe60c9d428c65e809e7acfbf4d19fce1587ce1e1d5fbeefd79dd2087d6e4a3
SSDEEP

1536:MJC4gSnTJmTr3HiOaxzH0J+X3/Sm9VMJ4GQRyt48fvsVpCcB91qFhuV:MBnTJGiOaSJYHlVl1qSV

Score

10^/10

xtremerat discovery persistence rat spyware

Malware Config

Extracted

Family

xtremerat

C2

laptope.sytes.net

Signatures

Detect XtremeRAT payload 9 IoCs

resource	yara_rule
behavioral2/memory/732-3-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/732-2-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/732-4-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/732-5-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3120-6-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/732-9-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/732-8-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3120-11-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/732-12-0x0000000010000000-0x000000001004A000-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
Xtremerat family
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\{C66CJXUT-448C-308Y-8F8A-58C001V6P1IW}	c2995fd46e8923c6cc8225674f0eb6b0_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{C66CJXUT-448C-308Y-8F8A-58C001V6P1IW}\StubPath = "C:\\Windows\\InstallDir\\Server.exe restart"	c2995fd46e8923c6cc8225674f0eb6b0_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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\InstallDir\\Server.exe"	c2995fd46e8923c6cc8225674f0eb6b0_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe"	c2995fd46e8923c6cc8225674f0eb6b0_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2584 set thread context of 732	2584	c2995fd46e8923c6cc8225674f0eb6b0_JaffaCakes118.exe	83

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\InstallDir\Server.exe	c2995fd46e8923c6cc8225674f0eb6b0_JaffaCakes118.exe
File created	C:\Windows\InstallDir\Server.exe	c2995fd46e8923c6cc8225674f0eb6b0_JaffaCakes118.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
4580	3120	WerFault.exe	84
440	3120	WerFault.exe	84

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	c2995fd46e8923c6cc8225674f0eb6b0_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c2995fd46e8923c6cc8225674f0eb6b0_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2584	c2995fd46e8923c6cc8225674f0eb6b0_JaffaCakes118.exe
732	c2995fd46e8923c6cc8225674f0eb6b0_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2584 wrote to memory of 732	2584	c2995fd46e8923c6cc8225674f0eb6b0_JaffaCakes118.exe	83
PID 2584 wrote to memory of 732	2584	c2995fd46e8923c6cc8225674f0eb6b0_JaffaCakes118.exe	83
PID 2584 wrote to memory of 732	2584	c2995fd46e8923c6cc8225674f0eb6b0_JaffaCakes118.exe	83
PID 2584 wrote to memory of 732	2584	c2995fd46e8923c6cc8225674f0eb6b0_JaffaCakes118.exe	83
PID 2584 wrote to memory of 732	2584	c2995fd46e8923c6cc8225674f0eb6b0_JaffaCakes118.exe	83
PID 2584 wrote to memory of 732	2584	c2995fd46e8923c6cc8225674f0eb6b0_JaffaCakes118.exe	83
PID 2584 wrote to memory of 732	2584	c2995fd46e8923c6cc8225674f0eb6b0_JaffaCakes118.exe	83
PID 2584 wrote to memory of 732	2584	c2995fd46e8923c6cc8225674f0eb6b0_JaffaCakes118.exe	83
PID 2584 wrote to memory of 732	2584	c2995fd46e8923c6cc8225674f0eb6b0_JaffaCakes118.exe	83
PID 2584 wrote to memory of 732	2584	c2995fd46e8923c6cc8225674f0eb6b0_JaffaCakes118.exe	83
PID 2584 wrote to memory of 732	2584	c2995fd46e8923c6cc8225674f0eb6b0_JaffaCakes118.exe	83
PID 2584 wrote to memory of 732	2584	c2995fd46e8923c6cc8225674f0eb6b0_JaffaCakes118.exe	83
PID 2584 wrote to memory of 732	2584	c2995fd46e8923c6cc8225674f0eb6b0_JaffaCakes118.exe	83
PID 732 wrote to memory of 3120	732	c2995fd46e8923c6cc8225674f0eb6b0_JaffaCakes118.exe	84
PID 732 wrote to memory of 3120	732	c2995fd46e8923c6cc8225674f0eb6b0_JaffaCakes118.exe	84
PID 732 wrote to memory of 3120	732	c2995fd46e8923c6cc8225674f0eb6b0_JaffaCakes118.exe	84
PID 732 wrote to memory of 3120	732	c2995fd46e8923c6cc8225674f0eb6b0_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\c2995fd46e8923c6cc8225674f0eb6b0_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c2995fd46e8923c6cc8225674f0eb6b0_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2584
- C:\Users\Admin\AppData\Local\Temp\c2995fd46e8923c6cc8225674f0eb6b0_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\c2995fd46e8923c6cc8225674f0eb6b0_JaffaCakes118.exe"
  2⤵
  - 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 SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:732
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3120
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3120 -s 480
      4⤵
      Program crash
      PID:4580
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3120 -s 488
      4⤵
      Program crash
      PID:440

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3120 -ip 3120
1⤵
PID:1968

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3120 -ip 3120
1⤵
PID:5072

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/732-3-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/732-2-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/732-4-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/732-5-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/732-9-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/732-8-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/732-12-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/3120-6-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/3120-11-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads