xenorat | ab0f362333e655da8332ba89226f9ac0c90e31aa53e633097cf6f88aead1a389

Resubmissions

09-08-2024 18:10

240809-wsd7vatdpq 10

09-08-2024 18:06

240809-wpp5yaxdpa 10

09-08-2024 13:45

240809-q2hzhavera 10

Analysis

max time kernel
59s
max time network
61s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
09-08-2024 18:06

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General

Target

SaturnTempSpoofer.exe
Size

181KB
MD5

0380311e496051295f02a440d4f34308
SHA1

d2b2d91ced3d0526fcb13f310bb5f7be4844b346
SHA256

ab0f362333e655da8332ba89226f9ac0c90e31aa53e633097cf6f88aead1a389
SHA512

b95a20df94c311deb080d45e1bcd7cd3f79e449041acd52bc67423adb50f49ec9e4728838f96aaec0f67d1fb9cb7403be0e445db06928434f49baac565be600e
SSDEEP

3072:UVqoCl/YgjxEufVU0TbTyDDalQlzw+jqZ91UbTK4I:UsLqdufVUNDaRW491Ub8

Score

10^/10

xenorat discovery evasion persistence rat trojan

Malware Config

Extracted

Family

xenorat

73.131.36.77

Mutex

Saturn Temp Spoofer

Attributes

install_path
appdata
port
4782
startup_name
AppWindows.exe

Signatures

Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe

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

Executes dropped EXE 9 IoCs

pid	Process
3496	saturntempspoofer.exe
1704	icsys.icn.exe
5088	explorer.exe
4464	spoolsv.exe
5044	svchost.exe
3736	spoolsv.exe
4236	saturntempspoofer.exe
3604	icsys.icn.exe
1700	explorer.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\resources\\themes\\explorer.exe RO"	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\resources\\svchost.exe RO"	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\resources\\themes\\explorer.exe RO"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\resources\\svchost.exe RO"	svchost.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\explorer.exe	explorer.exe
File opened for modification	C:\Windows\SysWOW64\explorer.exe	svchost.exe

Drops file in Windows directory 5 IoCs

description	ioc	Process
File opened for modification	\??\c:\windows\resources\svchost.exe	spoolsv.exe
File opened for modification	C:\Windows\Resources\Themes\icsys.icn.exe	SaturnTempSpoofer.exe
File opened for modification	C:\Windows\Resources\Themes\icsys.icn.exe	SaturnTempSpoofer.exe
File opened for modification	\??\c:\windows\resources\themes\explorer.exe	icsys.icn.exe
File opened for modification	\??\c:\windows\resources\spoolsv.exe	explorer.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 14 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	SaturnTempSpoofer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SaturnTempSpoofer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icsys.icn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	saturntempspoofer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SaturnTempSpoofer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icsys.icn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	saturntempspoofer.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
4224	schtasks.exe
3476	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2376	SaturnTempSpoofer.exe
2376	SaturnTempSpoofer.exe
2376	SaturnTempSpoofer.exe
2376	SaturnTempSpoofer.exe
2376	SaturnTempSpoofer.exe
2376	SaturnTempSpoofer.exe
2376	SaturnTempSpoofer.exe
2376	SaturnTempSpoofer.exe
2376	SaturnTempSpoofer.exe
2376	SaturnTempSpoofer.exe
2376	SaturnTempSpoofer.exe
2376	SaturnTempSpoofer.exe
2376	SaturnTempSpoofer.exe
2376	SaturnTempSpoofer.exe
2376	SaturnTempSpoofer.exe
2376	SaturnTempSpoofer.exe
2376	SaturnTempSpoofer.exe
2376	SaturnTempSpoofer.exe
2376	SaturnTempSpoofer.exe
2376	SaturnTempSpoofer.exe
2376	SaturnTempSpoofer.exe
2376	SaturnTempSpoofer.exe
2376	SaturnTempSpoofer.exe
2376	SaturnTempSpoofer.exe
2376	SaturnTempSpoofer.exe
2376	SaturnTempSpoofer.exe
2376	SaturnTempSpoofer.exe
2376	SaturnTempSpoofer.exe
2376	SaturnTempSpoofer.exe
2376	SaturnTempSpoofer.exe
2376	SaturnTempSpoofer.exe
2376	SaturnTempSpoofer.exe
1704	icsys.icn.exe
1704	icsys.icn.exe
1704	icsys.icn.exe
1704	icsys.icn.exe
1704	icsys.icn.exe
1704	icsys.icn.exe
1704	icsys.icn.exe
1704	icsys.icn.exe
1704	icsys.icn.exe
1704	icsys.icn.exe
1704	icsys.icn.exe
1704	icsys.icn.exe
1704	icsys.icn.exe
1704	icsys.icn.exe
1704	icsys.icn.exe
1704	icsys.icn.exe
1704	icsys.icn.exe
1704	icsys.icn.exe
1704	icsys.icn.exe
1704	icsys.icn.exe
1704	icsys.icn.exe
1704	icsys.icn.exe
1704	icsys.icn.exe
1704	icsys.icn.exe
1704	icsys.icn.exe
1704	icsys.icn.exe
1704	icsys.icn.exe
1704	icsys.icn.exe
1704	icsys.icn.exe
1704	icsys.icn.exe
1704	icsys.icn.exe
1704	icsys.icn.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
5088	explorer.exe
5044	svchost.exe

Suspicious use of SetWindowsHookEx 24 IoCs

pid	Process
2376	SaturnTempSpoofer.exe
2376	SaturnTempSpoofer.exe
1704	icsys.icn.exe
1704	icsys.icn.exe
5088	explorer.exe
5088	explorer.exe
4464	spoolsv.exe
4464	spoolsv.exe
5044	svchost.exe
5044	svchost.exe
3736	spoolsv.exe
3736	spoolsv.exe
4504	SaturnTempSpoofer.exe
4504	SaturnTempSpoofer.exe
4504	SaturnTempSpoofer.exe
2908	SaturnTempSpoofer.exe
2908	SaturnTempSpoofer.exe
2908	SaturnTempSpoofer.exe
3604	icsys.icn.exe
3604	icsys.icn.exe
3604	icsys.icn.exe
1700	explorer.exe
1700	explorer.exe
1700	explorer.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2376 wrote to memory of 3496	2376	SaturnTempSpoofer.exe	86
PID 2376 wrote to memory of 3496	2376	SaturnTempSpoofer.exe	86
PID 2376 wrote to memory of 3496	2376	SaturnTempSpoofer.exe	86
PID 2376 wrote to memory of 1704	2376	SaturnTempSpoofer.exe	89
PID 2376 wrote to memory of 1704	2376	SaturnTempSpoofer.exe	89
PID 2376 wrote to memory of 1704	2376	SaturnTempSpoofer.exe	89
PID 3496 wrote to memory of 4224	3496	saturntempspoofer.exe	90
PID 3496 wrote to memory of 4224	3496	saturntempspoofer.exe	90
PID 3496 wrote to memory of 4224	3496	saturntempspoofer.exe	90
PID 1704 wrote to memory of 5088	1704	icsys.icn.exe	92
PID 1704 wrote to memory of 5088	1704	icsys.icn.exe	92
PID 1704 wrote to memory of 5088	1704	icsys.icn.exe	92
PID 5088 wrote to memory of 4464	5088	explorer.exe	93
PID 5088 wrote to memory of 4464	5088	explorer.exe	93
PID 5088 wrote to memory of 4464	5088	explorer.exe	93
PID 4464 wrote to memory of 5044	4464	spoolsv.exe	95
PID 4464 wrote to memory of 5044	4464	spoolsv.exe	95
PID 4464 wrote to memory of 5044	4464	spoolsv.exe	95
PID 5044 wrote to memory of 3736	5044	svchost.exe	96
PID 5044 wrote to memory of 3736	5044	svchost.exe	96
PID 5044 wrote to memory of 3736	5044	svchost.exe	96
PID 4504 wrote to memory of 4236	4504	SaturnTempSpoofer.exe	110
PID 4504 wrote to memory of 4236	4504	SaturnTempSpoofer.exe	110
PID 4504 wrote to memory of 4236	4504	SaturnTempSpoofer.exe	110
PID 4236 wrote to memory of 3476	4236	saturntempspoofer.exe	111
PID 4236 wrote to memory of 3476	4236	saturntempspoofer.exe	111
PID 4236 wrote to memory of 3476	4236	saturntempspoofer.exe	111
PID 4504 wrote to memory of 3604	4504	SaturnTempSpoofer.exe	114
PID 4504 wrote to memory of 3604	4504	SaturnTempSpoofer.exe	114
PID 4504 wrote to memory of 3604	4504	SaturnTempSpoofer.exe	114
PID 3604 wrote to memory of 1700	3604	icsys.icn.exe	115
PID 3604 wrote to memory of 1700	3604	icsys.icn.exe	115
PID 3604 wrote to memory of 1700	3604	icsys.icn.exe	115

C:\Users\Admin\AppData\Local\Temp\SaturnTempSpoofer.exe
"C:\Users\Admin\AppData\Local\Temp\SaturnTempSpoofer.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2376
- \??\c:\users\admin\appdata\local\temp\saturntempspoofer.exe
  c:\users\admin\appdata\local\temp\saturntempspoofer.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3496
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /Create /TN "AppWindows.exe" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCA64.tmp" /F
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4224
- C:\Windows\Resources\Themes\icsys.icn.exe
  C:\Windows\Resources\Themes\icsys.icn.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1704
- - \??\c:\windows\resources\themes\explorer.exe
    c:\windows\resources\themes\explorer.exe
    3⤵
    - Modifies visiblity of hidden/system files in Explorer
    - Executes dropped EXE
    - Adds Run key to start application
    - Drops file in System32 directory
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:5088
  - - \??\c:\windows\resources\spoolsv.exe
      c:\windows\resources\spoolsv.exe SE
      4⤵
      Executes dropped EXE
      Drops file in Windows directory
      System Location Discovery: System Language Discovery
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:4464
    - - \??\c:\windows\resources\svchost.exe
        
        c:\windows\resources\svchost.exe
        5⤵
        Modifies visiblity of hidden/system files in Explorer
        Executes dropped EXE
        Adds Run key to start application
        Drops file in System32 directory
        System Location Discovery: System Language Discovery
        Suspicious behavior: GetForegroundWindowSpam
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:5044
      - \??\c:\windows\resources\spoolsv.exe
        
        c:\windows\resources\spoolsv.exe PR
        6⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious use of SetWindowsHookEx
        
        PID:3736

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:2380

C:\Users\Admin\AppData\Local\Temp\SaturnTempSpoofer.exe
"C:\Users\Admin\AppData\Local\Temp\SaturnTempSpoofer.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4504
- \??\c:\users\admin\appdata\local\temp\saturntempspoofer.exe
  c:\users\admin\appdata\local\temp\saturntempspoofer.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4236
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /Create /TN "AppWindows.exe" /XML "C:\Users\Admin\AppData\Local\Temp\tmp63C6.tmp" /F
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3476
- C:\Windows\Resources\Themes\icsys.icn.exe
  C:\Windows\Resources\Themes\icsys.icn.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3604
- - \??\c:\windows\resources\themes\explorer.exe
    c:\windows\resources\themes\explorer.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:1700

C:\Users\Admin\AppData\Local\Temp\SaturnTempSpoofer.exe
"C:\Users\Admin\AppData\Local\Temp\SaturnTempSpoofer.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:2908

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

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

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

Filesize
46KB

MD5
601c4ed7cdaa8a844937fe5fd62a8aff

SHA1
5ad9cf4a98cff0711ef7c0ca68353161d026a783

SHA256
c1d9b0e2b4967ddeace94b452b8db110137d165c4725d3ab61ec0a8b44f27765

SHA512
17d9b61107f327da1baed79779b834e669ecc4c38515e7334cc3424d9e773966937de09dc364111af37013fcdd3b00a3cd0cfcc2950db2bb61797ee1704cd477

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpCA64.tmp

Filesize
1KB

MD5
4a6533ac35b34ba35ea7fe0a37192a66

SHA1
29d3cbd1d4b9542175c17d6d4f20a5d992ae4c01

SHA256
b4eff105fd062397dd2931dd5b138323a3c7d05c9e4f630cf51a24949eb2bacb

SHA512
a356c1d8a46679a9fc2c3a14615d98c3fb4c00ac908b8f44c99a9070cb32d00c3b3eeb1700152f12a78924de79adc2de8452432e647fe0ed46baf1e065451d3d

Download Submit
C:\Windows\Resources\Themes\explorer.exe

Filesize
135KB

MD5
7c85cb1015c7a5af8a43bf600d466dac

SHA1
86d04cd26537407a4f4f3047e2c5665c223bbb8f

SHA256
7c9f7023465a07c88af0533ff124355142e3cb242dd6c8c72fda9ae8597e40cd

SHA512
b15b2e15e91325284ab9cf826e205877a9b6c73cf4ca8e8d7d4dc505e4b5b280758a06822468591af6324854d4fe19c0ba71217f7098f0f63e5c7170bedf9486

Download Submit
C:\Windows\Resources\Themes\icsys.icn.exe

Filesize
135KB

MD5
d6d054e7390aa12da74bd9dfaf246917

SHA1
62d73f8b9b0cae264d2036204c4c6b05f4fa88d2

SHA256
b89f7426b1d3c5293ff6d0d51f5673c4e670f15d47463461785daec6e3e98903

SHA512
66e4dedd18ad17a9df47dc553937a7048177bf439b682dddb7dcc847e48fdbd00b1e280fd9c5448fc03569c610e104e803dccd5fc0eecc2a140a298ea95f45c2

Download Submit
C:\Windows\Resources\spoolsv.exe

Filesize
135KB

MD5
7fbb46fa4c50320b98d2d29354b388cc

SHA1
2ec667beb04a5f5542b2aa97c2d0170153bbc55e

SHA256
8184f0e58f29d4a7f10e1555f45f7e4f38a6c177aecc719fee35720164daa68c

SHA512
8f7fb13c19af86c15a5d729a0b02e10d22b11784a5505e4261a75aba7e16d4fa6d15ddc2e8a4bede1d94a7e23c6fdb9d8a0cfe97ea96ac8d8a9e9de424bfc8af

Download Submit
C:\Windows\Resources\svchost.exe

Filesize
135KB

MD5
6e66851488ac99b5903b0d703a15b62a

SHA1
3ffc8baea87eaa92afabcac666215bb99d6773af

SHA256
e24d49903ac23312e7f1b7a9aa907b061879c8849b3a52a0d2acfed3ae381cb8

SHA512
5b43865545ecd18a999146d3f58eba5b7e44f24e3477bac146e50340784c3dc35841c1622bf12b23d54fcff87a20e7f860b0ceb6e238991b7807eb13326e0676

Download Submit
memory/1700-78-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/1704-53-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2376-55-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2376-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2908-67-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/3496-28-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/3496-10-0x00000000006E0000-0x00000000006F2000-memory.dmp

Filesize
72KB

Download
memory/3496-56-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/3496-9-0x000000007445E000-0x000000007445F000-memory.dmp

Filesize
4KB

Download
memory/3604-79-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/3736-54-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/4464-52-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/4464-36-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/4504-80-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/5044-46-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/5088-31-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download