stormkitty | 5275e3db6276e5f0b85eff0c7b0282f56268646766b1566ba8f797e6ba2a9357

Analysis

max time kernel
120s
max time network
138s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
16-10-2024 22:21

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General

Target

1b99f0bf9216a89b8320e63cbd18a292.exe
Size

1.3MB
MD5

1b99f0bf9216a89b8320e63cbd18a292
SHA1

6a199cb43cb4f808183918ddb6eadc760f7cb680
SHA256

5275e3db6276e5f0b85eff0c7b0282f56268646766b1566ba8f797e6ba2a9357
SHA512

02b7f410c6ccfd7d43159287424916a310b7e82c91cdb85eaeade16cf5614265a8bdcce8e6dcc2240ea54930cfb190f26ada3d5c926b50617a9826197f9cf382
SSDEEP

24576:J64p16BppRskYGC/cJUE7P6nxhpBaTn+CC6YtGz:JzpEBrRb4MonrpATDcUz

Score

10^/10

stormkitty xworm discovery persistence rat spyware stealer trojan

Malware Config

Extracted

Family

xworm

Version

5.0

104.219.239.11:6969

Mutex

QMHDjhLW52nOcp4a

Attributes

Install_directory
%AppData%
install_file
OneDrive.exe
telegram
https://api.telegram.org/bot5372344229:AAEM46DF5hWBLPbN5UErJaoJvlNvm-ZJXyg

aes.plain

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/1812-1098-0x0000000002800000-0x000000000280E000-memory.dmp	disable_win_def

Detect Xworm Payload 3 IoCs

resource	yara_rule
behavioral1/memory/1812-1095-0x00000000027D0000-0x00000000027FC000-memory.dmp	family_xworm
behavioral1/files/0x000a000000016311-1101.dat	family_xworm
behavioral1/memory/5096-1103-0x0000000000E00000-0x0000000000E2A000-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/1812-1104-0x00000000202F0000-0x0000000020410000-memory.dmp	family_stormkitty

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

Executes dropped EXE 1 IoCs

pid	Process
5096	advgov.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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\OneDrive = "C:\\Users\\Admin\\documents\\OneDrive.exe"	1b99f0bf9216a89b8320e63cbd18a292.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
6	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

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
4744	powershell.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1812	1b99f0bf9216a89b8320e63cbd18a292.exe
Token: SeDebugPrivilege	4744	powershell.exe
Token: SeDebugPrivilege	1812	1b99f0bf9216a89b8320e63cbd18a292.exe
Token: SeDebugPrivilege	1812	1b99f0bf9216a89b8320e63cbd18a292.exe
Token: SeDebugPrivilege	5096	advgov.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1812 wrote to memory of 4744	1812	1b99f0bf9216a89b8320e63cbd18a292.exe	31
PID 1812 wrote to memory of 4744	1812	1b99f0bf9216a89b8320e63cbd18a292.exe	31
PID 1812 wrote to memory of 4744	1812	1b99f0bf9216a89b8320e63cbd18a292.exe	31
PID 1812 wrote to memory of 5096	1812	1b99f0bf9216a89b8320e63cbd18a292.exe	34
PID 1812 wrote to memory of 5096	1812	1b99f0bf9216a89b8320e63cbd18a292.exe	34
PID 1812 wrote to memory of 5096	1812	1b99f0bf9216a89b8320e63cbd18a292.exe	34

C:\Users\Admin\AppData\Local\Temp\1b99f0bf9216a89b8320e63cbd18a292.exe
"C:\Users\Admin\AppData\Local\Temp\1b99f0bf9216a89b8320e63cbd18a292.exe"
1⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1812
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc 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
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4744
- C:\Users\Admin\AppData\Local\Temp\advgov.exe
  "C:\Users\Admin\AppData\Local\Temp\advgov.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:5096

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
146KB

MD5
34fb99630bab94b3cbf92c1c6dec493f

SHA1
d6cc3d729e7971f7144f902d482f723ddd77cad8

SHA256
f2e2e2e4b066e98a05012853f4fabf37e04b9c5dc18d8341cc98b145f9a7f12a

SHA512
62bfc6a7fb0d895907da815859e7d118b16de33111210443a745b0cb9d11db82bd0531efef8503266c1269a037153794ea52bc2ce70a127389fce0e5ac4d9fcf

Download Submit
memory/1812-0-0x000007FEF5C53000-0x000007FEF5C54000-memory.dmp

Filesize
4KB

Download
memory/1812-1-0x0000000001110000-0x000000000125A000-memory.dmp

Filesize
1.3MB

Download
memory/1812-2-0x000007FEF5C50000-0x000007FEF663C000-memory.dmp

Filesize
9.9MB

Download
memory/1812-3-0x000000001C1A0000-0x000000001C2A6000-memory.dmp

Filesize
1.0MB

Download
memory/1812-4-0x000000001C1A0000-0x000000001C2A1000-memory.dmp

Filesize
1.0MB

Download
memory/1812-5-0x000000001C1A0000-0x000000001C2A1000-memory.dmp

Filesize
1.0MB

Download
memory/1812-18-0x000000001C1A0000-0x000000001C2A1000-memory.dmp

Filesize
1.0MB

Download
memory/1812-27-0x000000001C1A0000-0x000000001C2A1000-memory.dmp

Filesize
1.0MB

Download
memory/1812-7-0x000000001C1A0000-0x000000001C2A1000-memory.dmp

Filesize
1.0MB

Download
memory/1812-35-0x000000001C1A0000-0x000000001C2A1000-memory.dmp

Filesize
1.0MB

Download
memory/1812-9-0x000000001C1A0000-0x000000001C2A1000-memory.dmp

Filesize
1.0MB

Download
memory/1812-11-0x000000001C1A0000-0x000000001C2A1000-memory.dmp

Filesize
1.0MB

Download
memory/1812-59-0x000000001C1A0000-0x000000001C2A1000-memory.dmp

Filesize
1.0MB

Download
memory/1812-13-0x000000001C1A0000-0x000000001C2A1000-memory.dmp

Filesize
1.0MB

Download
memory/1812-15-0x000000001C1A0000-0x000000001C2A1000-memory.dmp

Filesize
1.0MB

Download
memory/1812-19-0x000000001C1A0000-0x000000001C2A1000-memory.dmp

Filesize
1.0MB

Download
memory/1812-23-0x000000001C1A0000-0x000000001C2A1000-memory.dmp

Filesize
1.0MB

Download
memory/1812-25-0x000000001C1A0000-0x000000001C2A1000-memory.dmp

Filesize
1.0MB

Download
memory/1812-65-0x000000001C1A0000-0x000000001C2A1000-memory.dmp

Filesize
1.0MB

Download
memory/1812-67-0x000000001C1A0000-0x000000001C2A1000-memory.dmp

Filesize
1.0MB

Download
memory/1812-63-0x000000001C1A0000-0x000000001C2A1000-memory.dmp

Filesize
1.0MB

Download
memory/1812-61-0x000000001C1A0000-0x000000001C2A1000-memory.dmp

Filesize
1.0MB

Download
memory/1812-57-0x000000001C1A0000-0x000000001C2A1000-memory.dmp

Filesize
1.0MB

Download
memory/1812-55-0x000000001C1A0000-0x000000001C2A1000-memory.dmp

Filesize
1.0MB

Download
memory/1812-53-0x000000001C1A0000-0x000000001C2A1000-memory.dmp

Filesize
1.0MB

Download
memory/1812-51-0x000000001C1A0000-0x000000001C2A1000-memory.dmp

Filesize
1.0MB

Download
memory/1812-49-0x000000001C1A0000-0x000000001C2A1000-memory.dmp

Filesize
1.0MB

Download
memory/1812-47-0x000000001C1A0000-0x000000001C2A1000-memory.dmp

Filesize
1.0MB

Download
memory/1812-45-0x000000001C1A0000-0x000000001C2A1000-memory.dmp

Filesize
1.0MB

Download
memory/1812-43-0x000000001C1A0000-0x000000001C2A1000-memory.dmp

Filesize
1.0MB

Download
memory/1812-41-0x000000001C1A0000-0x000000001C2A1000-memory.dmp

Filesize
1.0MB

Download
memory/1812-39-0x000000001C1A0000-0x000000001C2A1000-memory.dmp

Filesize
1.0MB

Download
memory/1812-37-0x000000001C1A0000-0x000000001C2A1000-memory.dmp

Filesize
1.0MB

Download
memory/1812-33-0x000000001C1A0000-0x000000001C2A1000-memory.dmp

Filesize
1.0MB

Download
memory/1812-31-0x000000001C1A0000-0x000000001C2A1000-memory.dmp

Filesize
1.0MB

Download
memory/1812-29-0x000000001C1A0000-0x000000001C2A1000-memory.dmp

Filesize
1.0MB

Download
memory/1812-21-0x000000001C1A0000-0x000000001C2A1000-memory.dmp

Filesize
1.0MB

Download
memory/1812-1078-0x000007FEF5C50000-0x000007FEF663C000-memory.dmp

Filesize
9.9MB

Download
memory/1812-1079-0x00000000009B0000-0x0000000000A30000-memory.dmp

Filesize
512KB

Download
memory/1812-1080-0x00000000008E0000-0x000000000092C000-memory.dmp

Filesize
304KB

Download
memory/1812-1081-0x000007FEF5C53000-0x000007FEF5C54000-memory.dmp

Filesize
4KB

Download
memory/1812-1082-0x000007FEF5C50000-0x000007FEF663C000-memory.dmp

Filesize
9.9MB

Download
memory/1812-1084-0x000007FEF5C50000-0x000007FEF663C000-memory.dmp

Filesize
9.9MB

Download
memory/1812-1091-0x00000000010C0000-0x0000000001114000-memory.dmp

Filesize
336KB

Download
memory/1812-1095-0x00000000027D0000-0x00000000027FC000-memory.dmp

Filesize
176KB

Download
memory/1812-1096-0x000007FEF5C50000-0x000007FEF663C000-memory.dmp

Filesize
9.9MB

Download
memory/1812-1098-0x0000000002800000-0x000000000280E000-memory.dmp

Filesize
56KB

Download
memory/1812-1104-0x00000000202F0000-0x0000000020410000-memory.dmp

Filesize
1.1MB

Download
memory/4744-1089-0x000000001B620000-0x000000001B902000-memory.dmp

Filesize
2.9MB

Download
memory/4744-1090-0x0000000002920000-0x0000000002928000-memory.dmp

Filesize
32KB

Download
memory/5096-1103-0x0000000000E00000-0x0000000000E2A000-memory.dmp

Filesize
168KB

Download