xtremerat | 6db8ad2794d2c65a3c6b6a21a6eeef5aec6b1ea245b97dfd73e308bb25648315

General

Target
8be4839863a93ea3cef6bf60b6311218.exe
Size 170KB
Sample240203-klfxbaffgm
SHA256 6db8ad2794d2c65a3c6b6a21a6eeef5aec6b1ea245b97dfd73e308bb25648315
MD5 8be4839863a93ea3cef6bf60b6311218
SHA1 2c9e5f29c3da1b501262aff7751b204a30b5e32c
SHA512 7cac84ed99d5498418c04358d57e025bf21eca77418f845c239c429446faa75b6a0a0002f1c374410d3427944d8e4f8444263bb065dccd17f2a438ec4ba93cab
SSDEEP 3072:zKEKmrDUskUVIKkAX/0L0rZmm1sJmvxHfi/R1+aJe1mgawzxsBub861jIHxownLj:zKE5IIL7JnYRUTV5nLrQLulIGsZ
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

Malware Config

Signatures

Detect XtremeRAT payload 7 IoCs

resource	yara_rule
behavioral2/memory/4968-2-0x0000000000C80000-0x0000000000C93000-memory.dmp	family_xtremerat
behavioral2/memory/4968-4-0x0000000000C80000-0x0000000000C93000-memory.dmp	family_xtremerat
behavioral2/memory/4968-5-0x0000000000C80000-0x0000000000C93000-memory.dmp	family_xtremerat
behavioral2/memory/4968-6-0x0000000000C80000-0x0000000000C93000-memory.dmp	family_xtremerat
behavioral2/memory/5072-10-0x0000000000C80000-0x0000000000C93000-memory.dmp	family_xtremerat
behavioral2/memory/4968-11-0x0000000000C80000-0x0000000000C93000-memory.dmp	family_xtremerat
behavioral2/memory/5072-13-0x0000000000C80000-0x0000000000C93000-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

Modifies Installed Components in the registry 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{5KO86025-TR58-EKNU-45Y8-Y52X408MWO2P}	8be4839863a93ea3cef6bf60b6311218.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5KO86025-TR58-EKNU-45Y8-Y52X408MWO2P}\StubPath = "C:\\Windows\\system32\\microsoft\\xtreme.exe restart"	8be4839863a93ea3cef6bf60b6311218.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3012-0-0x00000000005D0000-0x00000000005DD000-memory.dmp	upx
behavioral2/memory/3012-1-0x00000000005D0000-0x00000000005DD000-memory.dmp	upx

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\microsoft\xtreme.exe	8be4839863a93ea3cef6bf60b6311218.exe
File created	C:\Windows\SysWOW64\microsoft\xtreme.exe	8be4839863a93ea3cef6bf60b6311218.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3012 set thread context of 4968	3012	8be4839863a93ea3cef6bf60b6311218.exe	84

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5072	notepad.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3012 wrote to memory of 4968	3012	8be4839863a93ea3cef6bf60b6311218.exe	84
PID 3012 wrote to memory of 4968	3012	8be4839863a93ea3cef6bf60b6311218.exe	84
PID 3012 wrote to memory of 4968	3012	8be4839863a93ea3cef6bf60b6311218.exe	84
PID 3012 wrote to memory of 4968	3012	8be4839863a93ea3cef6bf60b6311218.exe	84
PID 3012 wrote to memory of 4968	3012	8be4839863a93ea3cef6bf60b6311218.exe	84
PID 4968 wrote to memory of 3996	4968	8be4839863a93ea3cef6bf60b6311218.exe	85
PID 4968 wrote to memory of 3996	4968	8be4839863a93ea3cef6bf60b6311218.exe	85
PID 4968 wrote to memory of 3996	4968	8be4839863a93ea3cef6bf60b6311218.exe	85
PID 4968 wrote to memory of 5072	4968	8be4839863a93ea3cef6bf60b6311218.exe	86
PID 4968 wrote to memory of 5072	4968	8be4839863a93ea3cef6bf60b6311218.exe	86
PID 4968 wrote to memory of 5072	4968	8be4839863a93ea3cef6bf60b6311218.exe	86
PID 4968 wrote to memory of 5072	4968	8be4839863a93ea3cef6bf60b6311218.exe	86

C:\Users\Admin\AppData\Local\Temp\8be4839863a93ea3cef6bf60b6311218.exe
"C:\Users\Admin\AppData\Local\Temp\8be4839863a93ea3cef6bf60b6311218.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3012
- C:\Users\Admin\AppData\Local\Temp\8be4839863a93ea3cef6bf60b6311218.exe
  "C:\Users\Admin\AppData\Local\Temp\8be4839863a93ea3cef6bf60b6311218.exe"
  2⤵
  - Modifies Installed Components in the registry
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:4968
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    PID:3996
- - C:\Windows\SysWOW64\notepad.exe
    notepad.exe
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:5072

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3012-0-0x00000000005D0000-0x00000000005DD000-memory.dmp

Download

memory/3012-1-0x00000000005D0000-0x00000000005DD000-memory.dmp

Download

memory/3012-3-0x0000000000400000-0x0000000000430000-memory.dmp

Download

memory/4968-2-0x0000000000C80000-0x0000000000C93000-memory.dmp

Download

memory/4968-4-0x0000000000C80000-0x0000000000C93000-memory.dmp

Download

memory/4968-5-0x0000000000C80000-0x0000000000C93000-memory.dmp

Download

memory/4968-6-0x0000000000C80000-0x0000000000C93000-memory.dmp

Download

memory/4968-11-0x0000000000C80000-0x0000000000C93000-memory.dmp

Download

memory/5072-10-0x0000000000C80000-0x0000000000C93000-memory.dmp

Download

memory/5072-13-0x0000000000C80000-0x0000000000C93000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads