xtremerat | 846379ec8895b1890befe5ba8d56c2fb47be01e2bed0274829fe9259144d1e64

General

Target

fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe
Size

111KB
MD5

fe9ed51d3348653ef8ca0d9ddcc976e9
SHA1

0e1b5ec69036369d6d91b1fcc54d70030f94c140
SHA256

846379ec8895b1890befe5ba8d56c2fb47be01e2bed0274829fe9259144d1e64
SHA512

e1e4f97707e53503880ca7bbc7f14ad46079ca124f281452f75e7c2453d81200ab75bbaa9473d56fd0280c2e588b6e727dae9bcfcc84c6cbadbf92a1266b3b48
SSDEEP

1536:JX2Z6iJobVDDPk3huCcSnZQAPBfDf7+PqtCFInVjPVT64Ydjnp5mB6Fg8SN:8Z2xvc3PcSnZ1pGo1d1YdTHmBL8SN

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

dannymatrix.no-ip.org

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral1/memory/1784-7-0x0000000010000000-0x000000001004F000-memory.dmp	family_xtremerat
behavioral1/memory/1784-6-0x0000000010000000-0x000000001004F000-memory.dmp	family_xtremerat
behavioral1/memory/2428-10-0x0000000010000000-0x000000001004F000-memory.dmp	family_xtremerat
behavioral1/memory/1784-16-0x0000000010000000-0x000000001004F000-memory.dmp	family_xtremerat
behavioral1/memory/2428-18-0x0000000010000000-0x000000001004F000-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

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\372download.jpg.exe	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\372download.jpg	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\372download.jpg	DllHost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1736 set thread context of 1784	1736	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe	30

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1784-3-0x0000000010000000-0x000000001004F000-memory.dmp	upx
behavioral1/memory/1784-7-0x0000000010000000-0x000000001004F000-memory.dmp	upx
behavioral1/memory/1784-6-0x0000000010000000-0x000000001004F000-memory.dmp	upx
behavioral1/memory/1784-5-0x0000000010000000-0x000000001004F000-memory.dmp	upx
behavioral1/memory/2428-10-0x0000000010000000-0x000000001004F000-memory.dmp	upx
behavioral1/memory/1784-16-0x0000000010000000-0x000000001004F000-memory.dmp	upx
behavioral1/memory/2428-18-0x0000000010000000-0x000000001004F000-memory.dmp	upx

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	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DllHost.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2556	DllHost.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1736	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe
2556	DllHost.exe
2556	DllHost.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1736 wrote to memory of 1784	1736	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe	30
PID 1736 wrote to memory of 1784	1736	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe	30
PID 1736 wrote to memory of 1784	1736	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe	30
PID 1736 wrote to memory of 1784	1736	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe	30
PID 1736 wrote to memory of 1784	1736	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe	30
PID 1736 wrote to memory of 1784	1736	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe	30
PID 1736 wrote to memory of 1784	1736	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe	30
PID 1736 wrote to memory of 1784	1736	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe	30
PID 1736 wrote to memory of 1784	1736	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe	30
PID 1784 wrote to memory of 2428	1784	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe	31
PID 1784 wrote to memory of 2428	1784	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe	31
PID 1784 wrote to memory of 2428	1784	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe	31
PID 1784 wrote to memory of 2428	1784	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe	31
PID 1784 wrote to memory of 2428	1784	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe	31
PID 1784 wrote to memory of 2988	1784	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe	32
PID 1784 wrote to memory of 2988	1784	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe	32
PID 1784 wrote to memory of 2988	1784	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe	32
PID 1784 wrote to memory of 2988	1784	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe	32
PID 1784 wrote to memory of 2988	1784	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1736
- C:\Users\Admin\AppData\Local\Temp\fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1784
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2428
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    PID:2988

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:2556

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

Replay Monitor

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Downloads

C:\Windows\SysWOW64\372download.jpg

Filesize
8KB

MD5
b91cd44a12943b0010ce0d584767603d

SHA1
53a096d97ff82fd2d3147380c95045e6adfde7ae

SHA256
5e07de2ee02a7b5909733f0ff4800154413a166458e85fe6472e7b7d243a8756

SHA512
d1c210c96a4384f70784d07127cc3a2aa090b9830d04705d688cb347c9d82b471ed53b1a11eaba7d3a918d87d9339c615204439dc782fc85059363788e7b1fde

Download Submit
memory/1784-13-0x0000000003030000-0x0000000003032000-memory.dmp

Filesize
8KB

Download
memory/1784-6-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/1784-5-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/1784-3-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/1784-16-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/1784-7-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/2428-10-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/2428-8-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/2428-18-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/2556-14-0x0000000000330000-0x0000000000332000-memory.dmp

Filesize
8KB

Download
memory/2556-15-0x0000000000440000-0x0000000000441000-memory.dmp

Filesize
4KB

Download
memory/2556-19-0x0000000000440000-0x0000000000441000-memory.dmp

Filesize
4KB

Download

Analysis

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