stormkitty | 8d59ef4f887ea68153faebb1ac97e69319087ff059903d4b26d1961828a8cbca

General

Target

quest mod installer.exe
Size

176KB
MD5

ed369f4bf4345b9a0680f904495cd101
SHA1

6dceb43de613608cc8468998605eb4b7836b2412
SHA256

8d59ef4f887ea68153faebb1ac97e69319087ff059903d4b26d1961828a8cbca
SHA512

48b4f2b3a87b76985d6c1b513fa261c822ffd4ae5aa9f8b9cbd9e8dafa684bc0a4cb23a16b8202bd33717a3834c1b54ef9266ca1e27db251dc83752c54eb4761
SSDEEP

3072:gNOFXeivN1tvdibFsmIlOo2FzRbSHNBz65/M6If+3Js+3JFkKeTno:g05vNwbFGHNxBt25

Score

10^/10

stormkitty xworm discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:53655

147.185.221.24::53655

147.185.221.24:53655

topics-properties.gl.at.ply.gg:53655

Attributes

Install_directory
%AppData%
install_file
XClient.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/2976-1-0x0000000000B50000-0x0000000000B82000-memory.dmp	family_xworm
behavioral2/files/0x000d000000023b93-58.dat	family_xworm

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

StormKitty payload 1 IoCs

resource	yara_rule
behavioral2/memory/2976-62-0x000000001E2B0000-0x000000001E3D0000-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
2776	powershell.exe
3588	powershell.exe
776	powershell.exe
4748	powershell.exe

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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	quest mod installer.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 2 IoCs

pid	Process
436	XClient.exe
4016	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

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
14	ip-api.com

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

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
3720	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2776	powershell.exe
2776	powershell.exe
3588	powershell.exe
3588	powershell.exe
776	powershell.exe
776	powershell.exe
4748	powershell.exe
4748	powershell.exe
2976	quest mod installer.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2976	quest mod installer.exe
Token: SeDebugPrivilege	2776	powershell.exe
Token: SeDebugPrivilege	3588	powershell.exe
Token: SeDebugPrivilege	776	powershell.exe
Token: SeDebugPrivilege	4748	powershell.exe
Token: SeDebugPrivilege	2976	quest mod installer.exe
Token: SeDebugPrivilege	436	XClient.exe
Token: SeDebugPrivilege	4016	XClient.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2976	quest mod installer.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2976 wrote to memory of 2776	2976	quest mod installer.exe	87
PID 2976 wrote to memory of 2776	2976	quest mod installer.exe	87
PID 2976 wrote to memory of 3588	2976	quest mod installer.exe	89
PID 2976 wrote to memory of 3588	2976	quest mod installer.exe	89
PID 2976 wrote to memory of 776	2976	quest mod installer.exe	91
PID 2976 wrote to memory of 776	2976	quest mod installer.exe	91
PID 2976 wrote to memory of 4748	2976	quest mod installer.exe	93
PID 2976 wrote to memory of 4748	2976	quest mod installer.exe	93
PID 2976 wrote to memory of 3720	2976	quest mod installer.exe	97
PID 2976 wrote to memory of 3720	2976	quest mod installer.exe	97

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\quest mod installer.exe
"C:\Users\Admin\AppData\Local\Temp\quest mod installer.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2976
- 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\quest mod installer.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2776
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'quest mod installer.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3588
- 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:776
- 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:4748
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "XClient" /tr "C:\Users\Admin\AppData\Roaming\XClient.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:3720

C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:436

C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4016

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Browser Information Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

Filesize
944B

MD5
cadef9abd087803c630df65264a6c81c

SHA1
babbf3636c347c8727c35f3eef2ee643dbcc4bd2

SHA256
cce65b73cdfe9304bcd5207913e8b60fb69faa20cd3b684f2b0343b755b99438

SHA512
7278aa87124abb382d9024a645e881e7b7cf1b84e8894943b36e018dbf0399e6858392f77980b599fa5488e2e21bf757a0702fe6419417edac93b68e0c2ec085

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

Filesize
944B

MD5
da5c82b0e070047f7377042d08093ff4

SHA1
89d05987cd60828cca516c5c40c18935c35e8bd3

SHA256
77a94ef8c4258445d538a6006ffadb05afdf888f6f044e1e5466b981a07f16c5

SHA512
7360311a3c97b73dd3f6d7179cd979e0e20d69f380d38292447e17e369087d9dd5acb66cd0cbdd95ac4bfb16e5a1b86825f835a8d45b14ea9812102cff59704b

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

Filesize
944B

MD5
cc19bcff372d20459d3651ba8aef50e7

SHA1
3c6f1d4cdd647864fb97a16b1aefba67fcee11f7

SHA256
366473e774d8976c7fd4dc582220666fb61a4feb3f7c95e69b2a68ad9e446ec9

SHA512
a0e360ca4b6e874fd44612bf4b17f3722c0619da4f6bade12a62efadae88c2d33460114eaafa2bc3fb1cef5bea07e745b8bee24f15d0cacaff5f4a521b225080

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3y5jyn54.xmx.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\XClient.exe

Filesize
176KB

MD5
ed369f4bf4345b9a0680f904495cd101

SHA1
6dceb43de613608cc8468998605eb4b7836b2412

SHA256
8d59ef4f887ea68153faebb1ac97e69319087ff059903d4b26d1961828a8cbca

SHA512
48b4f2b3a87b76985d6c1b513fa261c822ffd4ae5aa9f8b9cbd9e8dafa684bc0a4cb23a16b8202bd33717a3834c1b54ef9266ca1e27db251dc83752c54eb4761

Download Submit
memory/2776-13-0x00007FF8BCD30000-0x00007FF8BD7F1000-memory.dmp

Filesize
10.8MB

Download
memory/2776-18-0x00007FF8BCD30000-0x00007FF8BD7F1000-memory.dmp

Filesize
10.8MB

Download
memory/2776-15-0x00007FF8BCD30000-0x00007FF8BD7F1000-memory.dmp

Filesize
10.8MB

Download
memory/2776-14-0x00007FF8BCD30000-0x00007FF8BD7F1000-memory.dmp

Filesize
10.8MB

Download
memory/2776-8-0x000001D748F50000-0x000001D748F72000-memory.dmp

Filesize
136KB

Download
memory/2976-0-0x00007FF8BCD33000-0x00007FF8BCD35000-memory.dmp

Filesize
8KB

Download
memory/2976-57-0x00007FF8BCD30000-0x00007FF8BD7F1000-memory.dmp

Filesize
10.8MB

Download
memory/2976-2-0x00007FF8BCD30000-0x00007FF8BD7F1000-memory.dmp

Filesize
10.8MB

Download
memory/2976-62-0x000000001E2B0000-0x000000001E3D0000-memory.dmp

Filesize
1.1MB

Download
memory/2976-101-0x000000001E5D0000-0x000000001E920000-memory.dmp

Filesize
3.3MB

Download
memory/2976-1-0x0000000000B50000-0x0000000000B82000-memory.dmp

Filesize
200KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads