xtremerat | a6016a5b7157970918f2b3b85d7355a4dfb6f8a325146a79d87e24eefb1ec6a8

Analysis

max time kernel
93s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
07-01-2025 18:03

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General

Target

a6016a5b7157970918f2b3b85d7355a4dfb6f8a325146a79d87e24eefb1ec6a8.exe
Size

823KB
MD5

f1bd85dc3f579f451d3b60e25e9d68e4
SHA1

cbd2f880a5852ea094560ce14de7d2e4dceab067
SHA256

a6016a5b7157970918f2b3b85d7355a4dfb6f8a325146a79d87e24eefb1ec6a8
SHA512

d6b855b2cbf6fa27ac845d6483ba79c9ebe50603d5f760b9789a0a1a8f9b1ffcfdcee45b7c3e26f330e5f6dcde57acd407176d76ef3f67966318da5b4e7e8ff3
SSDEEP

12288:U69zDWz/xwNqdlbrIX3JALF1QbOagrEGgtNryyCJuDT/PNa0AYQ/Hyw2Ee:U2DW/xbHX2YIbCQsu3/PNL7Q/HyVEe

Score

10^/10

xtremerat discovery persistence rat spyware

Malware Config

Extracted

Family

xtremerat

far3on.zapto.org

Signatures

Detect XtremeRAT payload 4 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023c99-6.dat	family_xtremerat
behavioral2/memory/2600-8-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3352-9-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2600-11-0x0000000010000000-0x000000001004A000-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

Executes dropped EXE 1 IoCs

pid	Process
3352	server.exe

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
216	2600	WerFault.exe	83
544	2600	WerFault.exe	83

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

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1916 wrote to memory of 3352	1916	a6016a5b7157970918f2b3b85d7355a4dfb6f8a325146a79d87e24eefb1ec6a8.exe	82
PID 1916 wrote to memory of 3352	1916	a6016a5b7157970918f2b3b85d7355a4dfb6f8a325146a79d87e24eefb1ec6a8.exe	82
PID 1916 wrote to memory of 3352	1916	a6016a5b7157970918f2b3b85d7355a4dfb6f8a325146a79d87e24eefb1ec6a8.exe	82
PID 3352 wrote to memory of 2600	3352	server.exe	83
PID 3352 wrote to memory of 2600	3352	server.exe	83
PID 3352 wrote to memory of 2600	3352	server.exe	83
PID 3352 wrote to memory of 2600	3352	server.exe	83
PID 3352 wrote to memory of 3960	3352	server.exe	84
PID 3352 wrote to memory of 3960	3352	server.exe	84
PID 3352 wrote to memory of 3960	3352	server.exe	84

C:\Users\Admin\AppData\Local\Temp\a6016a5b7157970918f2b3b85d7355a4dfb6f8a325146a79d87e24eefb1ec6a8.exe
"C:\Users\Admin\AppData\Local\Temp\a6016a5b7157970918f2b3b85d7355a4dfb6f8a325146a79d87e24eefb1ec6a8.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1916
- C:\Users\Admin\AppData\Local\Temp\server.exe
  C:\Users\Admin\AppData\Local\Temp/server.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3352
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2600
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2600 -s 480
      4⤵
      Program crash
      PID:216
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2600 -s 488
      4⤵
      Program crash
      PID:544
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:3960

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2600 -ip 2600
1⤵
PID:3600

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 2600 -ip 2600
1⤵
PID:2932

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\server.exe

Filesize
65KB

MD5
12d27499021448c874136d36fbe339d5

SHA1
c03f7073cea41da612affc49dd078a8c7b2f341e

SHA256
c280699f7288524fb66a248100124757ad41c7d10585632b5363c79200f93ea1

SHA512
5e93611008cfbe5c22b7e5846bfa706e583215f3bd32b4cd1e6e77d730046cf850477a9683e1b60a2d10e1868d4a397585f09083555278c0f8eab449cd6ba4c7

Download Submit
memory/2600-8-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2600-11-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/3352-9-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download