xtremerat | b5d100d2e0885d0bf83a2bbda3b85eff31cadb0a4ddf2c29f912c4b2573744e4

General

Target

87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe
Size

812KB
MD5

87e378011e0391563b7a00817bd0672f
SHA1

20550443e185183d46dd73221a27abb324daf951
SHA256

b5d100d2e0885d0bf83a2bbda3b85eff31cadb0a4ddf2c29f912c4b2573744e4
SHA512

2abb0ad9e76f019e44d4d130e5e524d01dcef9401da692599d428287a064e019febd72a398c205d3cb8d3fa8e8f595440c9e62de63ff953b8d989aa2719dcc62
SSDEEP

6144:wRM77dMCZIwci+LwOEKCt/7avzhYn6kCf2iq/NY:wRM7dM7ZC/7gdYn6kri

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

mmm1212.no-ip.biz

Signatures

Detect XtremeRAT payload 6 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4472-8-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/4472-9-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/4344-11-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/4472-14-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/4344-15-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/4472-16-0x0000000010000000-0x0000000010048000-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

Processes:

87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}	87e378011e0391563b7a00817bd0672f_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"	87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\InstallDir\\Server.exe"	87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe"	87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "㩃啜敳獲䅜浤湩䅜灰慄慴䱜捯污呜浥屰㜸㍥㠷\u3130攱㌰ㄹ㘵戳愷〰ㄸ户つ㜶昲䩟晡慦慃敫ㅳ㠱攮數"	87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe

description	pid	process	target process
PID 4040 set thread context of 4472	4040	87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe	87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe

UPX packed file 8 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral2/memory/4472-5-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/4472-7-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/4472-8-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/4472-9-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/4344-11-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/4472-14-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/4344-15-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/4472-16-0x0000000010000000-0x0000000010048000-memory.dmp	upx

Drops file in Windows directory 3 IoCs

Processes:

87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe

description	ioc	process
File opened for modification	C:\Windows\InstallDir\Server.exe	87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe
File created	C:\Windows\InstallDir\Server.exe	87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe
File opened for modification	C:\Windows\InstallDir\	87e378011e0391563b7a00817bd0672f_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

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

3848 4344 WerFault.exe svchost.exe
4068 4344 WerFault.exe svchost.exe

pid	pid_target	process	target process
3848	4344	WerFault.exe	svchost.exe
4068	4344	WerFault.exe	svchost.exe

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

Processes:

87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe87e378011e0391563b7a00817bd0672f_JaffaCakes118.exesvchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe

pid process

4040 87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe
4472 87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe

pid	process
4040	87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe
4472	87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe

description	pid	process	target process
PID 4040 wrote to memory of 4472	4040	87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe	87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe
PID 4040 wrote to memory of 4472	4040	87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe	87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe
PID 4040 wrote to memory of 4472	4040	87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe	87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe
PID 4040 wrote to memory of 4472	4040	87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe	87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe
PID 4040 wrote to memory of 4472	4040	87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe	87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe
PID 4040 wrote to memory of 4472	4040	87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe	87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe
PID 4040 wrote to memory of 4472	4040	87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe	87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe
PID 4040 wrote to memory of 4472	4040	87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe	87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe
PID 4472 wrote to memory of 4344	4472	87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe	svchost.exe
PID 4472 wrote to memory of 4344	4472	87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe	svchost.exe
PID 4472 wrote to memory of 4344	4472	87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe	svchost.exe
PID 4472 wrote to memory of 4344	4472	87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4040
- C:\Users\Admin\AppData\Local\Temp\87e378011e0391563b7a00817bd0672f_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\87e378011e0391563b7a00817bd0672f_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:4472
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4344
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4344 -s 480
      4⤵
      Program crash
      PID:3848
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4344 -s 488
      4⤵
      Program crash
      PID:4068

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4344 -ip 4344
1⤵
PID:1100

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4344 -ip 4344
1⤵
PID:2400

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/4040-0-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/4040-1-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/4040-4-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/4040-10-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/4344-11-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4344-15-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4472-5-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4472-7-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4472-8-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4472-9-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4472-14-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4472-16-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads