xenorat | 13f183db5e4f7cbdef0673b81f35e99b712c08c6c545152ab0f8ee1ac140a8b5

Analysis

max time kernel
90s
max time network
117s
platform
windows11-21h2_x64
resource
win11-20240221-en
resource tags

arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
submitted
24/03/2024, 16:47

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General

Target

AuthClient.exe
Size

45KB
MD5

9f3540bc47fad7d3e44b77bd7d393cb9
SHA1

75a3c191551c6e2383a889e19944999dcaca082e
SHA256

13f183db5e4f7cbdef0673b81f35e99b712c08c6c545152ab0f8ee1ac140a8b5
SHA512

465a5b0f1ddaee38fd5c28cbcc9d69489146a816d3420ed1a7ea2c0f0816b0f9a0b8f40fe88680af324404ed97db95ad8e236d06a2ea144d1c5fc8791f7226c7
SSDEEP

768:7dhO/poiiUcjlJInkwH9Xqk5nWEZ5SbTDaHWI7CPW5p:pw+jjgnFH9XqcnW85SbTOWIh

Score

10^/10

xenorat rat spyware stealer trojan

Malware Config

Extracted

Family

xenorat

Vallithebest-32755.portmap.host

Mutex

Xeno_rat_nd8912d

Attributes

delay
2000
install_path
temp
port
32755
startup_name
AuthClient

Signatures

XenorRat
XenorRat is a remote access trojan written in C#.
trojan rat xenorat

Executes dropped EXE 1 IoCs

pid	Process
4540	AuthClient.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
2916	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe
4540	AuthClient.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4540	AuthClient.exe
Token: SeDebugPrivilege	4836	whoami.exe
Token: SeShutdownPrivilege	4540	AuthClient.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4540	AuthClient.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4576 wrote to memory of 4540	4576	AuthClient.exe	79
PID 4576 wrote to memory of 4540	4576	AuthClient.exe	79
PID 4576 wrote to memory of 4540	4576	AuthClient.exe	79
PID 4540 wrote to memory of 2916	4540	AuthClient.exe	81
PID 4540 wrote to memory of 2916	4540	AuthClient.exe	81
PID 4540 wrote to memory of 2916	4540	AuthClient.exe	81
PID 4540 wrote to memory of 3020	4540	AuthClient.exe	84
PID 4540 wrote to memory of 3020	4540	AuthClient.exe	84
PID 4540 wrote to memory of 3020	4540	AuthClient.exe	84
PID 3020 wrote to memory of 4836	3020	cmd.exe	86
PID 3020 wrote to memory of 4836	3020	cmd.exe	86
PID 3020 wrote to memory of 4836	3020	cmd.exe	86

C:\Users\Admin\AppData\Local\Temp\AuthClient.exe
"C:\Users\Admin\AppData\Local\Temp\AuthClient.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4576
- C:\Users\Admin\AppData\Local\Temp\XenoManager\AuthClient.exe
  "C:\Users\Admin\AppData\Local\Temp\XenoManager\AuthClient.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4540
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /Create /TN "AuthClient" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8906.tmp" /F
    3⤵
    - Creates scheduled task(s)
    PID:2916
- - C:\Windows\SysWOW64\cmd.exe
    "cmd.exe"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3020
  - - C:\Windows\SysWOW64\whoami.exe
      whoami
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:4836

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\AuthClient.exe.log

Filesize
226B

MD5
1294de804ea5400409324a82fdc7ec59

SHA1
9a39506bc6cadf99c1f2129265b610c69d1518f7

SHA256
494398ec6108c68573c366c96aae23d35e7f9bdbb440a4aab96e86fcad5871d0

SHA512
033905cc5b4d0c0ffab2138da47e3223765146fa751c9f84b199284b653a04874c32a23aae577d2e06ce6c6b34fec62331b5fc928e3baf68dc53263ecdfa10c1

Download Submit
C:\Users\Admin\AppData\Local\Temp\XenoManager\AuthClient.exe

Filesize
45KB

MD5
9f3540bc47fad7d3e44b77bd7d393cb9

SHA1
75a3c191551c6e2383a889e19944999dcaca082e

SHA256
13f183db5e4f7cbdef0673b81f35e99b712c08c6c545152ab0f8ee1ac140a8b5

SHA512
465a5b0f1ddaee38fd5c28cbcc9d69489146a816d3420ed1a7ea2c0f0816b0f9a0b8f40fe88680af324404ed97db95ad8e236d06a2ea144d1c5fc8791f7226c7

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp8906.tmp

Filesize
1KB

MD5
9d60ef385e8562d61fef048cc05ad99f

SHA1
1f752c67fd59dfe50e2f7b06d3109a7a6d3a6270

SHA256
8d53562b932443a99514ff45ffa0be0b542638327c1b8c8f09553064517733c8

SHA512
e7145d9fc1866469c0a3ca494a89bcd08641810d816944ee45356465833df55e3d0a5dfb88e285d51d927943f6db9b3811fc11331c546432ba90f997c20bb37f

Download Submit
memory/4540-24-0x0000000006100000-0x00000000061FA000-memory.dmp

Filesize
1000KB

Download
memory/4540-26-0x0000000006350000-0x00000000063A0000-memory.dmp

Filesize
320KB

Download
memory/4540-16-0x0000000074460000-0x0000000074C11000-memory.dmp

Filesize
7.7MB

Download
memory/4540-17-0x0000000005220000-0x0000000005230000-memory.dmp

Filesize
64KB

Download
memory/4540-63-0x0000000001270000-0x000000000127A000-memory.dmp

Filesize
40KB

Download
memory/4540-20-0x0000000005BD0000-0x0000000005C36000-memory.dmp

Filesize
408KB

Download
memory/4540-21-0x0000000005B80000-0x0000000005B88000-memory.dmp

Filesize
32KB

Download
memory/4540-22-0x0000000074460000-0x0000000074C11000-memory.dmp

Filesize
7.7MB

Download
memory/4540-23-0x0000000005220000-0x0000000005230000-memory.dmp

Filesize
64KB

Download
memory/4540-62-0x00000000058E0000-0x00000000058EA000-memory.dmp

Filesize
40KB

Download
memory/4540-25-0x00000000063D0000-0x0000000006592000-memory.dmp

Filesize
1.8MB

Download
memory/4540-61-0x0000000006B60000-0x0000000006B6A000-memory.dmp

Filesize
40KB

Download
memory/4540-27-0x0000000006620000-0x0000000006696000-memory.dmp

Filesize
472KB

Download
memory/4540-28-0x0000000006BD0000-0x00000000070FC000-memory.dmp

Filesize
5.2MB

Download
memory/4540-29-0x00000000066C0000-0x00000000066DE000-memory.dmp

Filesize
120KB

Download
memory/4540-31-0x00000000067B0000-0x000000000684C000-memory.dmp

Filesize
624KB

Download
memory/4540-58-0x0000000006730000-0x000000000673C000-memory.dmp

Filesize
48KB

Download
memory/4540-59-0x00000000076B0000-0x0000000007C56000-memory.dmp

Filesize
5.6MB

Download
memory/4540-60-0x0000000007100000-0x0000000007192000-memory.dmp

Filesize
584KB

Download
memory/4576-15-0x0000000074460000-0x0000000074C11000-memory.dmp

Filesize
7.7MB

Download
memory/4576-0-0x0000000000E10000-0x0000000000E22000-memory.dmp

Filesize
72KB

Download
memory/4576-1-0x0000000074460000-0x0000000074C11000-memory.dmp

Filesize
7.7MB

Download