stormkitty | 0e06e9585cc9db33ee999ca4de668ab64ef6e9fa928ae6541b2f1ec68ff09da8

max time kernel
488s
max time network
494s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
31-07-2024 19:40

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General

Target

91eab57eaf00089ffd21329eb93e072c8eb7ed79e37c807f6db2859548c8b5d8.exe
Size

3.6MB
MD5

beef5daf51dadc2acdbccc37a73ccfec
SHA1

1a49019a42f0a195828bf2a5e7b41013709cc8c9
SHA256

91eab57eaf00089ffd21329eb93e072c8eb7ed79e37c807f6db2859548c8b5d8
SHA512

f6021d968f28a2dbf25e58c0bd9b474662de542b9cdf9dc3454bc97ee30e23aa2bd754c455e6fc973f7cf4ead9ca5c9f186e0cb3f9f6dec1e2f9aa3b31f64580
SSDEEP

98304:qbkDpLr5n9Ov7NCnsAAS7QG0owscxF7ZLN:q2pA7NksAASUqwsOLN

Score

10^/10

stormkitty credential_access discovery evasion spyware stealer themida trojan

Malware Config

Signatures

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

StormKitty payload 2 IoCs

Processes:

resource	yara_rule
behavioral29/memory/4744-12-0x0000000000EC0000-0x000000000176C000-memory.dmp	family_stormkitty
behavioral29/memory/4744-71-0x0000000000EC0000-0x000000000176C000-memory.dmp	family_stormkitty

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
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

91eab57eaf00089ffd21329eb93e072c8eb7ed79e37c807f6db2859548c8b5d8.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 91eab57eaf00089ffd21329eb93e072c8eb7ed79e37c807f6db2859548c8b5d8.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	91eab57eaf00089ffd21329eb93e072c8eb7ed79e37c807f6db2859548c8b5d8.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

91eab57eaf00089ffd21329eb93e072c8eb7ed79e37c807f6db2859548c8b5d8.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	91eab57eaf00089ffd21329eb93e072c8eb7ed79e37c807f6db2859548c8b5d8.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	91eab57eaf00089ffd21329eb93e072c8eb7ed79e37c807f6db2859548c8b5d8.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

Themida packer 2 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral29/memory/4744-12-0x0000000000EC0000-0x000000000176C000-memory.dmp	themida
behavioral29/memory/4744-71-0x0000000000EC0000-0x000000000176C000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

91eab57eaf00089ffd21329eb93e072c8eb7ed79e37c807f6db2859548c8b5d8.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	91eab57eaf00089ffd21329eb93e072c8eb7ed79e37c807f6db2859548c8b5d8.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

1 ip-api.com
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

91eab57eaf00089ffd21329eb93e072c8eb7ed79e37c807f6db2859548c8b5d8.exe

pid process

4744 91eab57eaf00089ffd21329eb93e072c8eb7ed79e37c807f6db2859548c8b5d8.exe

flow	ioc
1	ip-api.com

pid	process
4744	91eab57eaf00089ffd21329eb93e072c8eb7ed79e37c807f6db2859548c8b5d8.exe

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

Processes:

91eab57eaf00089ffd21329eb93e072c8eb7ed79e37c807f6db2859548c8b5d8.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	91eab57eaf00089ffd21329eb93e072c8eb7ed79e37c807f6db2859548c8b5d8.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

91eab57eaf00089ffd21329eb93e072c8eb7ed79e37c807f6db2859548c8b5d8.exe

description pid process

Token: SeDebugPrivilege 4744 91eab57eaf00089ffd21329eb93e072c8eb7ed79e37c807f6db2859548c8b5d8.exe

description	pid	process
Token: SeDebugPrivilege	4744	91eab57eaf00089ffd21329eb93e072c8eb7ed79e37c807f6db2859548c8b5d8.exe

C:\Users\Admin\AppData\Local\Temp\91eab57eaf00089ffd21329eb93e072c8eb7ed79e37c807f6db2859548c8b5d8.exe
"C:\Users\Admin\AppData\Local\Temp\91eab57eaf00089ffd21329eb93e072c8eb7ed79e37c807f6db2859548c8b5d8.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:4744

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/4744-0-0x0000000000EC0000-0x000000000176C000-memory.dmp

Filesize
8.7MB

Download
memory/4744-1-0x0000000075226000-0x0000000075227000-memory.dmp

Filesize
4KB

Download
memory/4744-2-0x0000000075130000-0x00000000752F2000-memory.dmp

Filesize
1.8MB

Download
memory/4744-5-0x0000000075130000-0x00000000752F2000-memory.dmp

Filesize
1.8MB

Download
memory/4744-4-0x0000000075130000-0x00000000752F2000-memory.dmp

Filesize
1.8MB

Download
memory/4744-3-0x0000000075130000-0x00000000752F2000-memory.dmp

Filesize
1.8MB

Download
memory/4744-6-0x0000000075130000-0x00000000752F2000-memory.dmp

Filesize
1.8MB

Download
memory/4744-7-0x0000000075130000-0x00000000752F2000-memory.dmp

Filesize
1.8MB

Download
memory/4744-8-0x0000000075130000-0x00000000752F2000-memory.dmp

Filesize
1.8MB

Download
memory/4744-11-0x0000000075130000-0x00000000752F2000-memory.dmp

Filesize
1.8MB

Download
memory/4744-12-0x0000000000EC0000-0x000000000176C000-memory.dmp

Filesize
8.7MB

Download
memory/4744-13-0x0000000005FF0000-0x0000000006082000-memory.dmp

Filesize
584KB

Download
memory/4744-14-0x0000000006590000-0x0000000006A8E000-memory.dmp

Filesize
5.0MB

Download
memory/4744-23-0x00000000064D0000-0x000000000656C000-memory.dmp

Filesize
624KB

Download
memory/4744-27-0x0000000006430000-0x0000000006496000-memory.dmp

Filesize
408KB

Download
memory/4744-33-0x0000000006F20000-0x0000000006F70000-memory.dmp

Filesize
320KB

Download
memory/4744-42-0x0000000006F10000-0x0000000006F1A000-memory.dmp

Filesize
40KB

Download
memory/4744-46-0x00000000077E0000-0x00000000077F2000-memory.dmp

Filesize
72KB

Download
memory/4744-71-0x0000000000EC0000-0x000000000176C000-memory.dmp

Filesize
8.7MB

Download
memory/4744-72-0x0000000075130000-0x00000000752F2000-memory.dmp

Filesize
1.8MB

Download