xtremerat | 589bfae7dedc5b6e68ae7ad9dca32dbb6add6daa244adee13fe081fd39ab928c

General

Target

JaffaCakes118_a88fb51131740aac70b90e52f26c4c2c.exe
Size

264KB
MD5

a88fb51131740aac70b90e52f26c4c2c
SHA1

7bbcbcd4563a6dbae3b1ff07a350820ddc51c1a1
SHA256

589bfae7dedc5b6e68ae7ad9dca32dbb6add6daa244adee13fe081fd39ab928c
SHA512

241bba695b77770ce50b12b312ee5836a6448b282ccbb30c7c5b5ca0b818d56f1c3eb251fb090c868c9cc29c32b616f7500d1595466db82e6adbfb39c7260448
SSDEEP

1536:SDWY2LVp5mH+V77dC/nLpMbt41HP4nLNTBjO/4jExtKeJr5Fwn:TY2xis7dC/LpKOGxkwYSsron

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

ayada.dyndns.biz

Signatures

Detect XtremeRAT payload 6 IoCs

resource	yara_rule
behavioral1/memory/2044-5-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral1/memory/2044-6-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral1/memory/2068-12-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral1/memory/2772-16-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral1/memory/2044-17-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral1/memory/2772-19-0x0000000000C80000-0x0000000000C96000-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 4 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\{046OHQQT-VN31-8XQ4-0437-CT54H1012041}	JaffaCakes118_a88fb51131740aac70b90e52f26c4c2c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{046OHQQT-VN31-8XQ4-0437-CT54H1012041}\StubPath = "C:\\Windows\\InstallDir\\Server.exe restart"	JaffaCakes118_a88fb51131740aac70b90e52f26c4c2c.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{046OHQQT-VN31-8XQ4-0437-CT54H1012041}	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{046OHQQT-VN31-8XQ4-0437-CT54H1012041}\StubPath = "C:\\Windows\\InstallDir\\Server.exe restart"	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2376 set thread context of 2044	2376	JaffaCakes118_a88fb51131740aac70b90e52f26c4c2c.exe	31

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2044-2-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/2044-4-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/2044-5-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/2044-6-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/2068-12-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/2772-16-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/2044-17-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/2772-19-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\InstallDir\Server.exe	JaffaCakes118_a88fb51131740aac70b90e52f26c4c2c.exe
File created	C:\Windows\InstallDir\Server.exe	JaffaCakes118_a88fb51131740aac70b90e52f26c4c2c.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 4 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	JaffaCakes118_a88fb51131740aac70b90e52f26c4c2c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_a88fb51131740aac70b90e52f26c4c2c.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 2 IoCs

pid	Process
2376	JaffaCakes118_a88fb51131740aac70b90e52f26c4c2c.exe
2772	explorer.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2376 wrote to memory of 2044	2376	JaffaCakes118_a88fb51131740aac70b90e52f26c4c2c.exe	31
PID 2376 wrote to memory of 2044	2376	JaffaCakes118_a88fb51131740aac70b90e52f26c4c2c.exe	31
PID 2376 wrote to memory of 2044	2376	JaffaCakes118_a88fb51131740aac70b90e52f26c4c2c.exe	31
PID 2376 wrote to memory of 2044	2376	JaffaCakes118_a88fb51131740aac70b90e52f26c4c2c.exe	31
PID 2376 wrote to memory of 2044	2376	JaffaCakes118_a88fb51131740aac70b90e52f26c4c2c.exe	31
PID 2376 wrote to memory of 2044	2376	JaffaCakes118_a88fb51131740aac70b90e52f26c4c2c.exe	31
PID 2376 wrote to memory of 2044	2376	JaffaCakes118_a88fb51131740aac70b90e52f26c4c2c.exe	31
PID 2376 wrote to memory of 2044	2376	JaffaCakes118_a88fb51131740aac70b90e52f26c4c2c.exe	31
PID 2376 wrote to memory of 2044	2376	JaffaCakes118_a88fb51131740aac70b90e52f26c4c2c.exe	31
PID 2044 wrote to memory of 2068	2044	JaffaCakes118_a88fb51131740aac70b90e52f26c4c2c.exe	32
PID 2044 wrote to memory of 2068	2044	JaffaCakes118_a88fb51131740aac70b90e52f26c4c2c.exe	32
PID 2044 wrote to memory of 2068	2044	JaffaCakes118_a88fb51131740aac70b90e52f26c4c2c.exe	32
PID 2044 wrote to memory of 2068	2044	JaffaCakes118_a88fb51131740aac70b90e52f26c4c2c.exe	32
PID 2044 wrote to memory of 2068	2044	JaffaCakes118_a88fb51131740aac70b90e52f26c4c2c.exe	32
PID 2044 wrote to memory of 2772	2044	JaffaCakes118_a88fb51131740aac70b90e52f26c4c2c.exe	33
PID 2044 wrote to memory of 2772	2044	JaffaCakes118_a88fb51131740aac70b90e52f26c4c2c.exe	33
PID 2044 wrote to memory of 2772	2044	JaffaCakes118_a88fb51131740aac70b90e52f26c4c2c.exe	33
PID 2044 wrote to memory of 2772	2044	JaffaCakes118_a88fb51131740aac70b90e52f26c4c2c.exe	33
PID 2044 wrote to memory of 2772	2044	JaffaCakes118_a88fb51131740aac70b90e52f26c4c2c.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a88fb51131740aac70b90e52f26c4c2c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a88fb51131740aac70b90e52f26c4c2c.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2376
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a88fb51131740aac70b90e52f26c4c2c.exe
  2⤵
  - Boot or Logon Autostart Execution: Active Setup
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2044
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - Boot or Logon Autostart Execution: Active Setup
    - System Location Discovery: System Language Discovery
    PID:2068
- - C:\Windows\SysWOW64\explorer.exe
    explorer.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:2772

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Active Setup

1

T1547.014

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Active Setup

1

T1547.014

Defense Evasion

Modify Registry

1

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

C:\Windows\InstallDir\Server.exe

Filesize
264KB

MD5
a88fb51131740aac70b90e52f26c4c2c

SHA1
7bbcbcd4563a6dbae3b1ff07a350820ddc51c1a1

SHA256
589bfae7dedc5b6e68ae7ad9dca32dbb6add6daa244adee13fe081fd39ab928c

SHA512
241bba695b77770ce50b12b312ee5836a6448b282ccbb30c7c5b5ca0b818d56f1c3eb251fb090c868c9cc29c32b616f7500d1595466db82e6adbfb39c7260448

Download Submit
memory/2044-2-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2044-4-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2044-5-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2044-6-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2044-17-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2068-11-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2068-12-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2772-16-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2772-19-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads