xtremerat | d84051600b4210a62534a91831c2de85668ae6484b769e70ce8233686a9d138b

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
30/10/2022, 18:04

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General

Target

d84051600b4210a62534a91831c2de85668ae6484b769e70ce8233686a9d138b.exe
Size

45KB
MD5

83121fb09c3da34c442aca4478460210
SHA1

e90b458db9298219f24097e9af29d5a6017dcd29
SHA256

d84051600b4210a62534a91831c2de85668ae6484b769e70ce8233686a9d138b
SHA512

af32c11467cc84bdffe912dda99481efd5fde1191afec8431be6187f4b53b1d96d302ae54c27c9b3eb5f8c2dc6ffd07807b5aa16afa42744b57380dcf8d9e765
SSDEEP

768:9Br+tjFY90iY6W1jwmDzKgEFQXaklMIAnH8hwfOgw0cVzowKU:jyRh31jxPEFQXak+H84bUowh

Score

10^/10

xtremerat persistence rat spyware

Malware Config

Extracted

Family

xtremerat

furthers.no-ip.biz

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/5080-133-0x0000000000000000-mapping.dmp	family_xtremerat
behavioral2/memory/5080-134-0x0000000000C80000-0x0000000000C93000-memory.dmp	family_xtremerat
behavioral2/memory/5080-135-0x0000000000C80000-0x0000000000C93000-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

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}	d84051600b4210a62534a91831c2de85668ae6484b769e70ce8233686a9d138b.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"	d84051600b4210a62534a91831c2de85668ae6484b769e70ce8233686a9d138b.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	d84051600b4210a62534a91831c2de85668ae6484b769e70ce8233686a9d138b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\InstallDir\\Server.exe"	d84051600b4210a62534a91831c2de85668ae6484b769e70ce8233686a9d138b.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run	d84051600b4210a62534a91831c2de85668ae6484b769e70ce8233686a9d138b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe"	d84051600b4210a62534a91831c2de85668ae6484b769e70ce8233686a9d138b.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\InstallDir\Server.exe	d84051600b4210a62534a91831c2de85668ae6484b769e70ce8233686a9d138b.exe
File opened for modification	C:\Windows\InstallDir\Server.exe	d84051600b4210a62534a91831c2de85668ae6484b769e70ce8233686a9d138b.exe

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

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5080	calc.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 384 wrote to memory of 2796	384	d84051600b4210a62534a91831c2de85668ae6484b769e70ce8233686a9d138b.exe	81
PID 384 wrote to memory of 2796	384	d84051600b4210a62534a91831c2de85668ae6484b769e70ce8233686a9d138b.exe	81
PID 384 wrote to memory of 2796	384	d84051600b4210a62534a91831c2de85668ae6484b769e70ce8233686a9d138b.exe	81
PID 384 wrote to memory of 3536	384	d84051600b4210a62534a91831c2de85668ae6484b769e70ce8233686a9d138b.exe	82
PID 384 wrote to memory of 3536	384	d84051600b4210a62534a91831c2de85668ae6484b769e70ce8233686a9d138b.exe	82
PID 384 wrote to memory of 3536	384	d84051600b4210a62534a91831c2de85668ae6484b769e70ce8233686a9d138b.exe	82
PID 384 wrote to memory of 5080	384	d84051600b4210a62534a91831c2de85668ae6484b769e70ce8233686a9d138b.exe	83
PID 384 wrote to memory of 5080	384	d84051600b4210a62534a91831c2de85668ae6484b769e70ce8233686a9d138b.exe	83
PID 384 wrote to memory of 5080	384	d84051600b4210a62534a91831c2de85668ae6484b769e70ce8233686a9d138b.exe	83
PID 384 wrote to memory of 5080	384	d84051600b4210a62534a91831c2de85668ae6484b769e70ce8233686a9d138b.exe	83

C:\Users\Admin\AppData\Local\Temp\d84051600b4210a62534a91831c2de85668ae6484b769e70ce8233686a9d138b.exe
"C:\Users\Admin\AppData\Local\Temp\d84051600b4210a62534a91831c2de85668ae6484b769e70ce8233686a9d138b.exe"
1⤵
- Modifies Installed Components in the registry
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:384
- C:\Windows\SysWOW64\calc.exe
  calc.exe
  2⤵
  PID:2796
- C:\Windows\SysWOW64\calc.exe
  calc.exe
  2⤵
  PID:3536
- C:\Windows\SysWOW64\calc.exe
  calc.exe
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:5080

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/5080-134-0x0000000000C80000-0x0000000000C93000-memory.dmp

Filesize
76KB

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memory/5080-135-0x0000000000C80000-0x0000000000C93000-memory.dmp

Filesize
76KB

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads