xtremerat | 829cf380ecf4934039f0e64ca10703cb820cd27c125a60cdea290fbb2e1d9759

General

Target

cbdc4f51229c2c2e43a4d9f0665e25b5_JaffaCakes118.exe
Size

65KB
MD5

cbdc4f51229c2c2e43a4d9f0665e25b5
SHA1

495f6144bcd1f03fd2bbf79e07b079da70c31288
SHA256

829cf380ecf4934039f0e64ca10703cb820cd27c125a60cdea290fbb2e1d9759
SHA512

f23dbf2ca761eb25e5850d4cb7d4c17d3d825c9abcc0fae1f7df311cbf93caabfdacb5ee8ebe82cf726709cd3302743591d5fe78fd1743abe8baa7e0a5208de4
SSDEEP

768:i8m1Sq4NQErBsH1tzoisBKQI6dObAG/dq8uW29Ifnca/yyR+P2ujfGiZKPA+7Xo8:Qsq+QV4rObAdXWpf/y+7ozNwinboXEq

Score

10^/10

xtremerat discovery persistence rat spyware

Malware Config

Extracted

Family

xtremerat

C2

xtremerat.no-ip.biz

.biz

Signatures

Detect XtremeRAT payload 6 IoCs

resource	yara_rule
behavioral2/memory/776-0-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3820-1-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1008-2-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3820-4-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3820-5-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/776-6-0x0000000010000000-0x000000001004A000-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
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\{JRSWS040-UM1X-007O-2L38-8YQNIBM782F0}	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{JRSWS040-UM1X-007O-2L38-8YQNIBM782F0}\StubPath = "C:\\Program Files (x86)\\Computer\\COMPUTERfiles restart"	explorer.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\Firewallupdate = "C:\\Program Files (x86)\\Computer\\COMPUTERfiles"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windowsupdate = "C:\\Program Files (x86)\\Computer\\COMPUTERfiles"	explorer.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Computer\COMPUTERfiles	explorer.exe
File created	C:\Program Files (x86)\Computer\COMPUTERfiles	explorer.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
1828	776	WerFault.exe	82
4324	776	WerFault.exe	82

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	cbdc4f51229c2c2e43a4d9f0665e25b5_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3820	explorer.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1008 wrote to memory of 776	1008	cbdc4f51229c2c2e43a4d9f0665e25b5_JaffaCakes118.exe	82
PID 1008 wrote to memory of 776	1008	cbdc4f51229c2c2e43a4d9f0665e25b5_JaffaCakes118.exe	82
PID 1008 wrote to memory of 776	1008	cbdc4f51229c2c2e43a4d9f0665e25b5_JaffaCakes118.exe	82
PID 1008 wrote to memory of 776	1008	cbdc4f51229c2c2e43a4d9f0665e25b5_JaffaCakes118.exe	82
PID 1008 wrote to memory of 3820	1008	cbdc4f51229c2c2e43a4d9f0665e25b5_JaffaCakes118.exe	83
PID 1008 wrote to memory of 3820	1008	cbdc4f51229c2c2e43a4d9f0665e25b5_JaffaCakes118.exe	83
PID 1008 wrote to memory of 3820	1008	cbdc4f51229c2c2e43a4d9f0665e25b5_JaffaCakes118.exe	83
PID 1008 wrote to memory of 3820	1008	cbdc4f51229c2c2e43a4d9f0665e25b5_JaffaCakes118.exe	83

C:\Users\Admin\AppData\Local\Temp\cbdc4f51229c2c2e43a4d9f0665e25b5_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cbdc4f51229c2c2e43a4d9f0665e25b5_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1008
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - System Location Discovery: System Language Discovery
  PID:776
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 776 -s 480
    3⤵
    - Program crash
    PID:1828
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 776 -s 488
    3⤵
    - Program crash
    PID:4324
- C:\Windows\SysWOW64\explorer.exe
  explorer.exe
  2⤵
  - Boot or Logon Autostart Execution: Active Setup
  - Adds Run key to start application
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:3820

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 776 -ip 776
1⤵
PID:5068

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 776 -ip 776
1⤵
PID:2160

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/776-0-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/776-6-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1008-2-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/3820-1-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/3820-4-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/3820-5-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads