stormkitty | 7bb432c0ac0cf65de6c795685a41b1478f9d979e2b05bd9c8fb11725f9942e01

Analysis

max time kernel
141s
max time network
136s
platform
windows7_x64
resource
win7-20220718-en
resource tags

arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
submitted
10-08-2022 11:00

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General

Target

pack/ApRnS.exe
Size

136KB
MD5

6862264bbd7688ac4bd96f16786cd153
SHA1

8fd23a996f8b78914f9969cb3c31be7ffd02e346
SHA256

701ef63a3a8c4f2eb90d64cd897e0098460e1272a54404b90ab794a685b98ffc
SHA512

23df9d7fe2e8028d2b7f985344ac5ff0d01f9a45f0925f6b37b0df64aab3702612e5bfb56cb29bc2325bd26ffe152fc69f4af5e36d0e94a97a6f04d27460c2e2

Score

10^/10

stormkitty collection stealer

Malware Config

Signatures

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

StormKitty payload 4 IoCs

Processes:

resource	yara_rule
behavioral25/memory/1544-59-0x0000000000190000-0x00000000001AA000-memory.dmp	family_stormkitty
behavioral25/memory/1544-60-0x00000000001A4F6E-mapping.dmp	family_stormkitty
behavioral25/memory/1544-62-0x0000000000190000-0x00000000001AA000-memory.dmp	family_stormkitty
behavioral25/memory/1544-64-0x0000000000190000-0x00000000001AA000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

AppLaunch.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-4084403625-2215941253-1760665084-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-4084403625-2215941253-1760665084-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-4084403625-2215941253-1760665084-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.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.

Processes:

flow ioc

4 icanhazip.com
Suspicious use of SetThreadContext 1 IoCs

Processes:

ApRnS.exe

description pid process target process

PID 964 set thread context of 1544 964 ApRnS.exe AppLaunch.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

flow	ioc
4	icanhazip.com

description	pid	process	target process
PID 964 set thread context of 1544	964	ApRnS.exe	AppLaunch.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

AppLaunch.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	AppLaunch.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	AppLaunch.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

AppLaunch.exe

description pid process

Token: SeDebugPrivilege 1544 AppLaunch.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

ApRnS.exe

pid process

964 ApRnS.exe

description	pid	process
Token: SeDebugPrivilege	1544	AppLaunch.exe

pid	process
964	ApRnS.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

ApRnS.exe

description	pid	process	target process
PID 964 wrote to memory of 1544	964	ApRnS.exe	AppLaunch.exe
PID 964 wrote to memory of 1544	964	ApRnS.exe	AppLaunch.exe
PID 964 wrote to memory of 1544	964	ApRnS.exe	AppLaunch.exe
PID 964 wrote to memory of 1544	964	ApRnS.exe	AppLaunch.exe
PID 964 wrote to memory of 1544	964	ApRnS.exe	AppLaunch.exe
PID 964 wrote to memory of 1544	964	ApRnS.exe	AppLaunch.exe
PID 964 wrote to memory of 1544	964	ApRnS.exe	AppLaunch.exe
PID 964 wrote to memory of 1544	964	ApRnS.exe	AppLaunch.exe
PID 964 wrote to memory of 1544	964	ApRnS.exe	AppLaunch.exe

outlook_office_path 1 IoCs

Processes:

AppLaunch.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-4084403625-2215941253-1760665084-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

Processes:

AppLaunch.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-4084403625-2215941253-1760665084-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\pack\ApRnS.exe
"C:\Users\Admin\AppData\Local\Temp\pack\ApRnS.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:964

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
2⤵
- Accesses Microsoft Outlook profiles
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1544

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Query Registry

T1012

Lateral Movement

Collection

Email Collection

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/964-56-0x0000000076A21000-0x0000000076A23000-memory.dmp

Filesize
8KB

Download
memory/1544-57-0x0000000000190000-0x00000000001AA000-memory.dmp

Filesize
104KB

Download
memory/1544-59-0x0000000000190000-0x00000000001AA000-memory.dmp

Filesize
104KB

Download
memory/1544-60-0x00000000001A4F6E-mapping.dmp

Download
memory/1544-62-0x0000000000190000-0x00000000001AA000-memory.dmp

Filesize
104KB

Download
memory/1544-64-0x0000000000190000-0x00000000001AA000-memory.dmp

Filesize
104KB

Download