stormkitty | adb457a925a23c0051ac0f18ad7fdb8e2c64302d15d0077cc3182c7f74257994

General

Target

adb457a925a23c0051ac0f18ad7fdb8e2c64302d15d0077cc3182c7f74257994N.exe
Size

67KB
MD5

cc64308d86b707f3fc9eda4630eb85f0
SHA1

783f4cd9bfadb5c561b177f30b1cd18211a08c04
SHA256

adb457a925a23c0051ac0f18ad7fdb8e2c64302d15d0077cc3182c7f74257994
SHA512

0da4a99489c61a2d4ae1bd098f7c3039111b36d26f24ed66e514691b1f2cd1905f71cdbb1437cc39d9d7e55820a12fa082e2dc6bc088a8dbcb9d0bc3d3e77c76
SSDEEP

768:ZyH6ce2zT+BEEm/Dm4zO7iYoCGSbc+hTYGEQKQbjA7kkHi3e6VRA6+ZgIYOShWZ/:Iac/Ji7noCGutRbjA7kkSq6+6IYOSX+

Score

10^/10

stormkitty xworm credential_access discovery execution persistence rat spyware stealer trojan

Malware Config

Extracted

Family

xworm

C2

91.92.241.132:7000

Attributes

Install_directory
%AppData%
install_file
USDT20.exe
telegram
https://api.telegram.org/bot7206931180:AAEOX3tXBGQztAH7K_TaFzjXLXP1KedKPeA

Signatures

Contains code to disable Windows Defender 1 IoCs

A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

resource	yara_rule
behavioral1/memory/1288-34-0x0000000000EE0000-0x0000000000EEE000-memory.dmp	disable_win_def

Detect Xworm Payload 3 IoCs

resource	yara_rule
behavioral1/memory/1288-1-0x0000000000FB0000-0x0000000000FC8000-memory.dmp	family_xworm
behavioral1/files/0x000e000000012251-70.dat	family_xworm
behavioral1/memory/1688-72-0x00000000013E0000-0x00000000013F8000-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/1288-43-0x000000001DA00000-0x000000001DB20000-memory.dmp	family_stormkitty

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

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
2056	powershell.exe
2564	powershell.exe
3040	powershell.exe
2956	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\USDT20.lnk	adb457a925a23c0051ac0f18ad7fdb8e2c64302d15d0077cc3182c7f74257994N.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\USDT20.lnk	adb457a925a23c0051ac0f18ad7fdb8e2c64302d15d0077cc3182c7f74257994N.exe

Executes dropped EXE 1 IoCs

pid	Process
1688	USDT20.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

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-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows\CurrentVersion\Run\USDT20 = "C:\\Users\\Admin\\AppData\\Roaming\\USDT20.exe"	adb457a925a23c0051ac0f18ad7fdb8e2c64302d15d0077cc3182c7f74257994N.exe

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
4	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
2828	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2956	powershell.exe
2056	powershell.exe
2564	powershell.exe
3040	powershell.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	1288	adb457a925a23c0051ac0f18ad7fdb8e2c64302d15d0077cc3182c7f74257994N.exe
Token: SeDebugPrivilege	2956	powershell.exe
Token: SeDebugPrivilege	2056	powershell.exe
Token: SeDebugPrivilege	2564	powershell.exe
Token: SeDebugPrivilege	3040	powershell.exe
Token: SeDebugPrivilege	1288	adb457a925a23c0051ac0f18ad7fdb8e2c64302d15d0077cc3182c7f74257994N.exe
Token: SeDebugPrivilege	1688	USDT20.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1288 wrote to memory of 2956	1288	adb457a925a23c0051ac0f18ad7fdb8e2c64302d15d0077cc3182c7f74257994N.exe	30
PID 1288 wrote to memory of 2956	1288	adb457a925a23c0051ac0f18ad7fdb8e2c64302d15d0077cc3182c7f74257994N.exe	30
PID 1288 wrote to memory of 2956	1288	adb457a925a23c0051ac0f18ad7fdb8e2c64302d15d0077cc3182c7f74257994N.exe	30
PID 1288 wrote to memory of 2056	1288	adb457a925a23c0051ac0f18ad7fdb8e2c64302d15d0077cc3182c7f74257994N.exe	32
PID 1288 wrote to memory of 2056	1288	adb457a925a23c0051ac0f18ad7fdb8e2c64302d15d0077cc3182c7f74257994N.exe	32
PID 1288 wrote to memory of 2056	1288	adb457a925a23c0051ac0f18ad7fdb8e2c64302d15d0077cc3182c7f74257994N.exe	32
PID 1288 wrote to memory of 2564	1288	adb457a925a23c0051ac0f18ad7fdb8e2c64302d15d0077cc3182c7f74257994N.exe	34
PID 1288 wrote to memory of 2564	1288	adb457a925a23c0051ac0f18ad7fdb8e2c64302d15d0077cc3182c7f74257994N.exe	34
PID 1288 wrote to memory of 2564	1288	adb457a925a23c0051ac0f18ad7fdb8e2c64302d15d0077cc3182c7f74257994N.exe	34
PID 1288 wrote to memory of 3040	1288	adb457a925a23c0051ac0f18ad7fdb8e2c64302d15d0077cc3182c7f74257994N.exe	36
PID 1288 wrote to memory of 3040	1288	adb457a925a23c0051ac0f18ad7fdb8e2c64302d15d0077cc3182c7f74257994N.exe	36
PID 1288 wrote to memory of 3040	1288	adb457a925a23c0051ac0f18ad7fdb8e2c64302d15d0077cc3182c7f74257994N.exe	36
PID 1288 wrote to memory of 2828	1288	adb457a925a23c0051ac0f18ad7fdb8e2c64302d15d0077cc3182c7f74257994N.exe	38
PID 1288 wrote to memory of 2828	1288	adb457a925a23c0051ac0f18ad7fdb8e2c64302d15d0077cc3182c7f74257994N.exe	38
PID 1288 wrote to memory of 2828	1288	adb457a925a23c0051ac0f18ad7fdb8e2c64302d15d0077cc3182c7f74257994N.exe	38
PID 1408 wrote to memory of 1688	1408	taskeng.exe	41
PID 1408 wrote to memory of 1688	1408	taskeng.exe	41
PID 1408 wrote to memory of 1688	1408	taskeng.exe	41

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\adb457a925a23c0051ac0f18ad7fdb8e2c64302d15d0077cc3182c7f74257994N.exe
"C:\Users\Admin\AppData\Local\Temp\adb457a925a23c0051ac0f18ad7fdb8e2c64302d15d0077cc3182c7f74257994N.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1288
- 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\adb457a925a23c0051ac0f18ad7fdb8e2c64302d15d0077cc3182c7f74257994N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2956
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'adb457a925a23c0051ac0f18ad7fdb8e2c64302d15d0077cc3182c7f74257994N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2056
- 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\USDT20.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2564
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'USDT20.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3040
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "USDT20" /tr "C:\Users\Admin\AppData\Roaming\USDT20.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2828

C:\Windows\system32\taskeng.exe
taskeng.exe {06D83C94-6510-4461-8EE8-5D8FFDEDAB40} S-1-5-21-457978338-2990298471-2379561640-1000:WOUOSVRD\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1408
- C:\Users\Admin\AppData\Roaming\USDT20.exe
  C:\Users\Admin\AppData\Roaming\USDT20.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1688

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

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

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

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\8FVR3ELHN602M8KMF9YG.temp

Filesize
7KB

MD5
73e01319bcb63cd9858f4c0bed3a1924

SHA1
f45812a0b9dd450affc0a537c66bb6e886c8e4e5

SHA256
8ee9fecd63f6909f9f8d26857fec2e7993ac5e75dd397be23d005b50f860e42e

SHA512
abff67c075b2c6ca090595260c09fc8ad1c4ba84b2311be8c3abc986db203c2bdc37024517b2dcfa2c46032e6eb852571957cd0996d243b444ca6e5db563b899

Download Submit
C:\Users\Admin\AppData\Roaming\USDT20.exe

Filesize
67KB

MD5
cc64308d86b707f3fc9eda4630eb85f0

SHA1
783f4cd9bfadb5c561b177f30b1cd18211a08c04

SHA256
adb457a925a23c0051ac0f18ad7fdb8e2c64302d15d0077cc3182c7f74257994

SHA512
0da4a99489c61a2d4ae1bd098f7c3039111b36d26f24ed66e514691b1f2cd1905f71cdbb1437cc39d9d7e55820a12fa082e2dc6bc088a8dbcb9d0bc3d3e77c76

Download Submit
memory/1288-35-0x000000001D710000-0x000000001D9F2000-memory.dmp

Filesize
2.9MB

Download
memory/1288-37-0x000000001A750000-0x000000001A798000-memory.dmp

Filesize
288KB

Download
memory/1288-1-0x0000000000FB0000-0x0000000000FC8000-memory.dmp

Filesize
96KB

Download
memory/1288-3-0x000007FEF6030000-0x000007FEF6A1C000-memory.dmp

Filesize
9.9MB

Download
memory/1288-67-0x0000000000FA0000-0x0000000000FAE000-memory.dmp

Filesize
56KB

Download
memory/1288-43-0x000000001DA00000-0x000000001DB20000-memory.dmp

Filesize
1.1MB

Download
memory/1288-2-0x000007FEF6033000-0x000007FEF6034000-memory.dmp

Filesize
4KB

Download
memory/1288-33-0x000007FEF6030000-0x000007FEF6A1C000-memory.dmp

Filesize
9.9MB

Download
memory/1288-34-0x0000000000EE0000-0x0000000000EEE000-memory.dmp

Filesize
56KB

Download
memory/1288-0-0x000007FEF6033000-0x000007FEF6034000-memory.dmp

Filesize
4KB

Download
memory/1288-36-0x0000000000F80000-0x0000000000F9C000-memory.dmp

Filesize
112KB

Download
memory/1288-42-0x000000001A7A0000-0x000000001A7B6000-memory.dmp

Filesize
88KB

Download
memory/1288-38-0x0000000000EF0000-0x0000000000EF8000-memory.dmp

Filesize
32KB

Download
memory/1288-39-0x000000001C850000-0x000000001C8F6000-memory.dmp

Filesize
664KB

Download
memory/1288-40-0x000000001ACC0000-0x000000001ACF4000-memory.dmp

Filesize
208KB

Download
memory/1288-41-0x000000001B210000-0x000000001B25A000-memory.dmp

Filesize
296KB

Download
memory/1688-72-0x00000000013E0000-0x00000000013F8000-memory.dmp

Filesize
96KB

Download
memory/2056-16-0x00000000022E0000-0x00000000022E8000-memory.dmp

Filesize
32KB

Download
memory/2056-15-0x000000001B3B0000-0x000000001B692000-memory.dmp

Filesize
2.9MB

Download
memory/2956-8-0x000000001B2B0000-0x000000001B592000-memory.dmp

Filesize
2.9MB

Download
memory/2956-9-0x0000000002410000-0x0000000002418000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads