stormkitty | 47976794f020cd6a26baeabaec503610fdf89f6cc9a2f843ee2aa078db6e63a9

Resubmissions

10-02-2025 21:27

250210-1a4r1ayjd1 10

10-02-2025 21:24

250210-z85lhsxnhr 10

Analysis

max time kernel
149s
max time network
151s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20250207-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20250207-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
10-02-2025 21:24

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General

Target

XClient.exe
Size

63KB
MD5

b4e148797a99791b7d0aeead19b680ea
SHA1

03066b079fd8915c7876c8a64f51c9c80fe4bbc4
SHA256

47976794f020cd6a26baeabaec503610fdf89f6cc9a2f843ee2aa078db6e63a9
SHA512

d0b270d8adbaeb715ed747aa1c1a8b89deb892b45fd147c95752a91ef9c6bda175662d011fc6d77e6c611d55e94a36ccef16aca255aafa8aab80897c26e3b1ec
SSDEEP

1536:cxl6n1aLNbE3gRBd9XhS2kL++bTIDx3ZLL6WnFO5tgo:cr84Rg3edfS2kL++bTyLJFO5yo

Score

10^/10

stormkitty xworm discovery execution persistence rat spyware stealer trojan

Malware Config

Extracted

Family

xworm

data-save.gl.at.ply.gg:61841

Attributes

Install_directory
%AppData%
install_file
XClient.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/5392-1-0x0000000000850000-0x0000000000866000-memory.dmp	family_xworm

StormKitty
StormKitty is an open source info stealer written in C#.
stealer stormkitty

StormKitty payload 1 IoCs

resource	yara_rule
behavioral1/memory/5392-79-0x000000001DB10000-0x000000001DC2E000-memory.dmp	family_stormkitty

Stormkitty family
stormkitty
Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
xworm

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
3780	powershell.exe
1804	powershell.exe
3624	powershell.exe
6084	powershell.exe

Downloads MZ/PE file 1 IoCs

flow	pid	Process
31	2784	Process not Found

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1132163375-3267464992-3122396738-1000\Control Panel\International\Geo\Nation	XClient.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	XClient.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	XClient.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1132163375-3267464992-3122396738-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe"	XClient.exe

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
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 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	MicrosoftEdgeUpdate.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
240	MicrosoftEdgeUpdate.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
3780	powershell.exe
3780	powershell.exe
1804	powershell.exe
1804	powershell.exe
3624	powershell.exe
3624	powershell.exe
6084	powershell.exe
6084	powershell.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe
5392	XClient.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	5392	XClient.exe
Token: SeDebugPrivilege	3780	powershell.exe
Token: SeIncreaseQuotaPrivilege	3780	powershell.exe
Token: SeSecurityPrivilege	3780	powershell.exe
Token: SeTakeOwnershipPrivilege	3780	powershell.exe
Token: SeLoadDriverPrivilege	3780	powershell.exe
Token: SeSystemProfilePrivilege	3780	powershell.exe
Token: SeSystemtimePrivilege	3780	powershell.exe
Token: SeProfSingleProcessPrivilege	3780	powershell.exe
Token: SeIncBasePriorityPrivilege	3780	powershell.exe
Token: SeCreatePagefilePrivilege	3780	powershell.exe
Token: SeBackupPrivilege	3780	powershell.exe
Token: SeRestorePrivilege	3780	powershell.exe
Token: SeShutdownPrivilege	3780	powershell.exe
Token: SeDebugPrivilege	3780	powershell.exe
Token: SeSystemEnvironmentPrivilege	3780	powershell.exe
Token: SeRemoteShutdownPrivilege	3780	powershell.exe
Token: SeUndockPrivilege	3780	powershell.exe
Token: SeManageVolumePrivilege	3780	powershell.exe
Token: 33	3780	powershell.exe
Token: 34	3780	powershell.exe
Token: 35	3780	powershell.exe
Token: 36	3780	powershell.exe
Token: SeDebugPrivilege	1804	powershell.exe
Token: SeIncreaseQuotaPrivilege	1804	powershell.exe
Token: SeSecurityPrivilege	1804	powershell.exe
Token: SeTakeOwnershipPrivilege	1804	powershell.exe
Token: SeLoadDriverPrivilege	1804	powershell.exe
Token: SeSystemProfilePrivilege	1804	powershell.exe
Token: SeSystemtimePrivilege	1804	powershell.exe
Token: SeProfSingleProcessPrivilege	1804	powershell.exe
Token: SeIncBasePriorityPrivilege	1804	powershell.exe
Token: SeCreatePagefilePrivilege	1804	powershell.exe
Token: SeBackupPrivilege	1804	powershell.exe
Token: SeRestorePrivilege	1804	powershell.exe
Token: SeShutdownPrivilege	1804	powershell.exe
Token: SeDebugPrivilege	1804	powershell.exe
Token: SeSystemEnvironmentPrivilege	1804	powershell.exe
Token: SeRemoteShutdownPrivilege	1804	powershell.exe
Token: SeUndockPrivilege	1804	powershell.exe
Token: SeManageVolumePrivilege	1804	powershell.exe
Token: 33	1804	powershell.exe
Token: 34	1804	powershell.exe
Token: 35	1804	powershell.exe
Token: 36	1804	powershell.exe
Token: SeDebugPrivilege	3624	powershell.exe
Token: SeIncreaseQuotaPrivilege	3624	powershell.exe
Token: SeSecurityPrivilege	3624	powershell.exe
Token: SeTakeOwnershipPrivilege	3624	powershell.exe
Token: SeLoadDriverPrivilege	3624	powershell.exe
Token: SeSystemProfilePrivilege	3624	powershell.exe
Token: SeSystemtimePrivilege	3624	powershell.exe
Token: SeProfSingleProcessPrivilege	3624	powershell.exe
Token: SeIncBasePriorityPrivilege	3624	powershell.exe
Token: SeCreatePagefilePrivilege	3624	powershell.exe
Token: SeBackupPrivilege	3624	powershell.exe
Token: SeRestorePrivilege	3624	powershell.exe
Token: SeShutdownPrivilege	3624	powershell.exe
Token: SeDebugPrivilege	3624	powershell.exe
Token: SeSystemEnvironmentPrivilege	3624	powershell.exe
Token: SeRemoteShutdownPrivilege	3624	powershell.exe
Token: SeUndockPrivilege	3624	powershell.exe
Token: SeManageVolumePrivilege	3624	powershell.exe
Token: 33	3624	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5392	XClient.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 5392 wrote to memory of 3780	5392	XClient.exe	85
PID 5392 wrote to memory of 3780	5392	XClient.exe	85
PID 5392 wrote to memory of 1804	5392	XClient.exe	88
PID 5392 wrote to memory of 1804	5392	XClient.exe	88
PID 5392 wrote to memory of 3624	5392	XClient.exe	90
PID 5392 wrote to memory of 3624	5392	XClient.exe	90
PID 5392 wrote to memory of 6084	5392	XClient.exe	92
PID 5392 wrote to memory of 6084	5392	XClient.exe	92

C:\Users\Admin\AppData\Local\Temp\XClient.exe
"C:\Users\Admin\AppData\Local\Temp\XClient.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5392
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3780
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1804
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3624
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  PID:6084

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGV4cCBldGFnPSImcXVvdDtyNDUydDErazJUZ3EvSFh6anZGTkJSaG9wQldSOXNialh4cWVVREg5dVgwPSZxdW90OyIvPjxhcHAgYXBwaWQ9Ins4QTY5RDM0NS1ENTY0LTQ2M2MtQUZGMS1BNjlEOUU1MzBGOTZ9IiB2ZXJzaW9uPSIxMjMuMC42MzEyLjEyMyIgbmV4dHZlcnNpb249IiIgbGFuZz0iZW4iIGJyYW5kPSJHR0xTIiBjbGllbnQ9IiIgaW5zdGFsbGFnZT0iMyIgaW5zdGFsbGRhdGV0aW1lPSIxNzM4OTM1NTU1IiBvb2JlX2luc3RhbGxfdGltZT0iMTMzODM0MDc5OTgxMDYwMDAwIj48ZXZlbnQgZXZlbnR0eXBlPSIzMSIgZXZlbnRyZXN1bHQ9IjEiIGVycm9yY29kZT0iMCIgZXh0cmFjb2RlMT0iMjE3OTg2MiIgc3lzdGVtX3VwdGltZV90aWNrcz0iNTEwMzAxNjM2NyIvPjwvYXBwPjwvcmVxdWVzdD4
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:240

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:3312

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Browser Information Discovery

T1217

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

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\UsageLogs\powershell.exe.log

Filesize
3KB

MD5
3eb3833f769dd890afc295b977eab4b4

SHA1
e857649b037939602c72ad003e5d3698695f436f

SHA256
c485a6e2fd17c342fca60060f47d6a5655a65a412e35e001bb5bf88d96e6e485

SHA512
c24bbc8f278478d43756807b8c584d4e3fb2289db468bc92986a489f74a8da386a667a758360a397e77e018e363be8912ac260072fa3e31117ad0599ac749e72

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
1KB

MD5
c67441dfa09f61bca500bb43407c56b8

SHA1
5a56cf7cbeb48c109e2128c31b681fac3959157b

SHA256
63082da456c124d0bc516d2161d1613db5f3008d903e4066d2c7b4e90b435f33

SHA512
325de8b718b3a01df05e20e028c5882240e5fd2e96c771361b776312923ff178f27494a1f5249bf6d7365a99155eb8735a51366e85597008e6a10462e63ee0e8

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
1KB

MD5
e4ef20e0c89f3d131ac4fd133668060e

SHA1
fe835c7aa8d635c37a0d51620e757d9075fd99a2

SHA256
9c950e01162ade682d90d1822d8cd65d7e7f495a111c83ac269183f2a40ff41c

SHA512
6f22181b2b8b9d88f3f16d42f8187bc46b378139b4cc294a850d55ad5a17169dcfe56a6065b80ba4cf718fffd92422efa41a94f4ce8374b4fb72e15d18d748c7

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
1KB

MD5
73fcdfef85580ce2ff184c4075fade28

SHA1
0881fe3066ccb452df0c7fdd1b14166f284d7334

SHA256
3a0faf79cdfa77a301682fafb853fb6435a94fda4808fac99da34822b551f7d5

SHA512
14b6ab328ff5c7eb0f85689cb49b90cd04f1d3668230748712eb6e7635da17c219eace8e7caddc6a59c0ef5fb602eadd4e8dc2b305e6cf767d305237cd616d74

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_aty23krw.hvx.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3780-12-0x00007FFBEB850000-0x00007FFBEC312000-memory.dmp

Filesize
10.8MB

Download
memory/3780-11-0x0000014270BA0000-0x0000014270BC2000-memory.dmp

Filesize
136KB

Download
memory/3780-15-0x00007FFBEB850000-0x00007FFBEC312000-memory.dmp

Filesize
10.8MB

Download
memory/3780-16-0x00007FFBEB850000-0x00007FFBEC312000-memory.dmp

Filesize
10.8MB

Download
memory/3780-19-0x00007FFBEB850000-0x00007FFBEC312000-memory.dmp

Filesize
10.8MB

Download
memory/3780-13-0x00007FFBEB850000-0x00007FFBEC312000-memory.dmp

Filesize
10.8MB

Download
memory/3780-14-0x00007FFBEB850000-0x00007FFBEC312000-memory.dmp

Filesize
10.8MB

Download
memory/5392-0-0x00007FFBEB853000-0x00007FFBEB855000-memory.dmp

Filesize
8KB

Download
memory/5392-1-0x0000000000850000-0x0000000000866000-memory.dmp

Filesize
88KB

Download
memory/5392-58-0x00007FFBEB850000-0x00007FFBEC312000-memory.dmp

Filesize
10.8MB

Download
memory/5392-59-0x00007FFBEB853000-0x00007FFBEB855000-memory.dmp

Filesize
8KB

Download
memory/5392-60-0x00007FFBEB850000-0x00007FFBEC312000-memory.dmp

Filesize
10.8MB

Download
memory/5392-61-0x000000001CAE0000-0x000000001CAEC000-memory.dmp

Filesize
48KB

Download
memory/5392-79-0x000000001DB10000-0x000000001DC2E000-memory.dmp

Filesize
1.1MB

Download