xtremerat | e8f37a90ab9c412b535e78ca85e2ac08f508f9d055f4f94274e7c74daacfa7b9

Analysis

max time kernel
73s
max time network
19s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
07-01-2025 03:43

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General

Target

e8f37a90ab9c412b535e78ca85e2ac08f508f9d055f4f94274e7c74daacfa7b9.exe
Size

81KB
MD5

dfd8631be9f94cd154c7ef7089e0216b
SHA1

4b837e2001697e4f2c4d80564498f95f06debe3e
SHA256

e8f37a90ab9c412b535e78ca85e2ac08f508f9d055f4f94274e7c74daacfa7b9
SHA512

fac4c97a89915d6867d302da78bd2a623acaabc814fd3a1391c3a5bba73d4daf65bb2188ccc4b185527947e2bc179f7f9556fbaee7e719a5f482422bccb5d5a9
SSDEEP

768:XBr+dUydx3AylcfBZBRgr6aPm+JYWvl2yzouyCEeU2FMQTxz/sP:xyWeLloB/Rgr6a+++Wvl2+ouyf6MQTxY

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 2 IoCs

resource	yara_rule
behavioral1/memory/1740-0-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral1/memory/1740-1-0x0000000000C80000-0x0000000000C96000-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

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1740-0-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/1740-1-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
760	1740	WerFault.exe	29

System Location Discovery: System Language Discovery 1 TTPs 1 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	e8f37a90ab9c412b535e78ca85e2ac08f508f9d055f4f94274e7c74daacfa7b9.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1740 wrote to memory of 760	1740	e8f37a90ab9c412b535e78ca85e2ac08f508f9d055f4f94274e7c74daacfa7b9.exe	30
PID 1740 wrote to memory of 760	1740	e8f37a90ab9c412b535e78ca85e2ac08f508f9d055f4f94274e7c74daacfa7b9.exe	30
PID 1740 wrote to memory of 760	1740	e8f37a90ab9c412b535e78ca85e2ac08f508f9d055f4f94274e7c74daacfa7b9.exe	30
PID 1740 wrote to memory of 760	1740	e8f37a90ab9c412b535e78ca85e2ac08f508f9d055f4f94274e7c74daacfa7b9.exe	30

C:\Users\Admin\AppData\Local\Temp\e8f37a90ab9c412b535e78ca85e2ac08f508f9d055f4f94274e7c74daacfa7b9.exe
"C:\Users\Admin\AppData\Local\Temp\e8f37a90ab9c412b535e78ca85e2ac08f508f9d055f4f94274e7c74daacfa7b9.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1740
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1740 -s 160
  2⤵
  - Program crash
  PID:760

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1740-0-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

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memory/1740-1-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download