xtremerat | e38035ebc17e4b8a248061b5ac873847b86450754284393a3e43b23ccd111e17

Analysis

max time kernel
94s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
06-11-2024 16:37

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General

Target

e38035ebc17e4b8a248061b5ac873847b86450754284393a3e43b23ccd111e17N.exe
Size

301KB
MD5

79835f955e19e8618db4ed3ebe6bd750
SHA1

3cda18f31c7ab946b498d032c596423e4a6ebbd5
SHA256

e38035ebc17e4b8a248061b5ac873847b86450754284393a3e43b23ccd111e17
SHA512

fcd8e7e5888df3b0fdf908a4b1fb6fdb983b51b499614bea9d7495d97886e48d18d4d14a860a2f052f73053942bf69792a92c9dd98d45c34dfde9308621f9f7f
SSDEEP

768:68m1Sq4NQErBsH1tzoisBKQI6dObAG/dq8uW29Ifnca/yyR+P2ujfGiiRzoJb+nS:osq+QV4rObAdXWpf/y+1owfcopLox

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

zootcher.no-ip.biz

Signatures

Detect XtremeRAT payload 4 IoCs

resource	yara_rule
behavioral2/memory/4740-0-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4936-1-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4740-2-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4936-3-0x0000000010000000-0x000000001004D000-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 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4740-0-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4936-1-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4740-2-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4936-3-0x0000000010000000-0x000000001004D000-memory.dmp	upx

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2284	4936	WerFault.exe	84
3520	4936	WerFault.exe	84

System Location Discovery: System Language Discovery 1 TTPs 2 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	e38035ebc17e4b8a248061b5ac873847b86450754284393a3e43b23ccd111e17N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4740 wrote to memory of 4936	4740	e38035ebc17e4b8a248061b5ac873847b86450754284393a3e43b23ccd111e17N.exe	84
PID 4740 wrote to memory of 4936	4740	e38035ebc17e4b8a248061b5ac873847b86450754284393a3e43b23ccd111e17N.exe	84
PID 4740 wrote to memory of 4936	4740	e38035ebc17e4b8a248061b5ac873847b86450754284393a3e43b23ccd111e17N.exe	84
PID 4740 wrote to memory of 4936	4740	e38035ebc17e4b8a248061b5ac873847b86450754284393a3e43b23ccd111e17N.exe	84
PID 4740 wrote to memory of 4684	4740	e38035ebc17e4b8a248061b5ac873847b86450754284393a3e43b23ccd111e17N.exe	86
PID 4740 wrote to memory of 4684	4740	e38035ebc17e4b8a248061b5ac873847b86450754284393a3e43b23ccd111e17N.exe	86
PID 4740 wrote to memory of 4684	4740	e38035ebc17e4b8a248061b5ac873847b86450754284393a3e43b23ccd111e17N.exe	86

C:\Users\Admin\AppData\Local\Temp\e38035ebc17e4b8a248061b5ac873847b86450754284393a3e43b23ccd111e17N.exe
"C:\Users\Admin\AppData\Local\Temp\e38035ebc17e4b8a248061b5ac873847b86450754284393a3e43b23ccd111e17N.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4740
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4936
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4936 -s 480
    3⤵
    - Program crash
    PID:2284
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4936 -s 488
    3⤵
    - Program crash
    PID:3520
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
  2⤵
  PID:4684

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4936 -ip 4936
1⤵
PID:3204

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4936 -ip 4936
1⤵
PID:4428

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

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/4740-0-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4740-2-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4936-1-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4936-3-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download