stormkitty | 6c3d0aec1057e3783db453fb638ad9dd3cb72051326e09b4396921b1b85074c2

Analysis

max time kernel
30s
max time network
33s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
10-08-2024 09:47

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General

Target

dungbulon_gnp..exe
Size

696KB
MD5

558ccdda252f2b544386d99345e68c42
SHA1

0285a983d81a148c0146b47b7f74610278fe750a
SHA256

410f5d4346f1c26ef99cbd3d34e72462a15a0c59ea0053903bbf5cbf85ab0769
SHA512

18a84cafefaa8adbe5a1d143e043db2a6960ee3c4823490d8a97924a9535de8bb83aeee9fe65f949745cc57d7ef74f2fb07d0f6f80c7823f94f32f961ec72069
SSDEEP

12288:3YU9PtTNzZXkBhnCd2p5X6x8TCXYe7fQBhHsqpp1XY2CHrnlVx26R4YrsmQMlerO:3TptpZXkBhnCd2p5X6x8THe74BljYrrz

Score

10^/10

stormkitty collection credential_access discovery spyware stealer

Malware Config

Signatures

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

StormKitty payload 2 IoCs

resource	yara_rule
behavioral9/files/0x0008000000023452-7.dat	family_stormkitty
behavioral9/memory/3728-16-0x0000000000290000-0x00000000002E6000-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

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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	dungbulon_gnp..exe

Executes dropped EXE 1 IoCs

pid	Process
3728	test.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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	test.exe
Key opened	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	test.exe
Key opened	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	test.exe

Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops desktop.ini file(s) 5 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\ZEUYFSYD\FileGrabber\Pictures\desktop.ini	test.exe
File created	C:\Users\Admin\AppData\Roaming\ZEUYFSYD\FileGrabber\Pictures\Saved Pictures\desktop.ini	test.exe
File created	C:\Users\Admin\AppData\Roaming\ZEUYFSYD\FileGrabber\Pictures\Camera Roll\desktop.ini	test.exe
File created	C:\Users\Admin\AppData\Roaming\ZEUYFSYD\FileGrabber\Desktop\desktop.ini	test.exe
File created	C:\Users\Admin\AppData\Roaming\ZEUYFSYD\FileGrabber\Downloads\desktop.ini	test.exe

Looks up external IP address via web service 5 IoCs

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

flow	ioc
41	api.ipify.org
43	ip-api.com
13	freegeoip.app
18	freegeoip.app
40	api.ipify.org

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

System Location Discovery: System Language Discovery 1 TTPs 3 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dungbulon_gnp..exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	test.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dw20.exe

Checks processor information in registry 2 TTPs 5 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dw20.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	test.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	test.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dw20.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dw20.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

pid	Process
3728	test.exe
3728	test.exe
3728	test.exe
3728	test.exe
3728	test.exe
3728	test.exe
3728	test.exe
3728	test.exe
3728	test.exe
3728	test.exe
3728	test.exe
3728	test.exe
3728	test.exe
3728	test.exe
3728	test.exe
3728	test.exe
3728	test.exe
3728	test.exe
3728	test.exe
3728	test.exe
3728	test.exe
3728	test.exe
3728	test.exe
3728	test.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeRestorePrivilege	3852	dw20.exe
Token: SeBackupPrivilege	3852	dw20.exe
Token: SeBackupPrivilege	3852	dw20.exe
Token: SeBackupPrivilege	3852	dw20.exe
Token: SeDebugPrivilege	3728	test.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2196 wrote to memory of 3728	2196	dungbulon_gnp..exe	84
PID 2196 wrote to memory of 3728	2196	dungbulon_gnp..exe	84
PID 2196 wrote to memory of 3728	2196	dungbulon_gnp..exe	84
PID 2196 wrote to memory of 3852	2196	dungbulon_gnp..exe	85
PID 2196 wrote to memory of 3852	2196	dungbulon_gnp..exe	85
PID 2196 wrote to memory of 3852	2196	dungbulon_gnp..exe	85

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	test.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	test.exe

C:\Users\Admin\AppData\Local\Temp\dungbulon_gnp..exe
"C:\Users\Admin\AppData\Local\Temp\dungbulon_gnp..exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2196
- C:\Users\Admin\AppData\Local\Temp\test.exe
  "C:\Users\Admin\AppData\Local\Temp\test.exe"
  2⤵
  - Executes dropped EXE
  - Accesses Microsoft Outlook profiles
  - Drops desktop.ini file(s)
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3728
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
  dw20.exe -x -s 1584
  2⤵
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  PID:3852

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
321KB

MD5
575fd5aaa70d06d608f606090fc93a85

SHA1
18058e781ece3c01c8addb8c78eb4dea92ae5438

SHA256
d2bd4899408c5d6fea249ed7c6d1c558e8b085ee481c84ba04f06d76eb495046

SHA512
71a6f65e9b64ad2d85db58378c306ddfc0ee0b3057a8d2cb95f7ea3d3f45404ccd53c06cf9cdf48cf44337351fe2bea8cc2ee511a49413e8e8d4fb788740b26e

Download Submit
C:\Users\Admin\AppData\Roaming\ZEUYFSYD\Browsers\Firefox\Bookmarks.txt

Filesize
105B

MD5
2e9d094dda5cdc3ce6519f75943a4ff4

SHA1
5d989b4ac8b699781681fe75ed9ef98191a5096c

SHA256
c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

SHA512
d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

Download Submit
C:\Users\Admin\AppData\Roaming\ZEUYFSYD\FileGrabber\Desktop\CloseConvertTo.jpg

Filesize
515KB

MD5
88342923075159a3d3198eef84e334e9

SHA1
9f2a181e488481f28b9710ec61a604783f89ead0

SHA256
96e1c6a5d389e46ae4b708a6357e3c97bb36467fb029002cbb03f3d4d6354bf7

SHA512
a4793a5c1a9e418387a5bd5879c4e27009b05fe93f25e3c50d2c5466e01f9881b6d92bba8bce6c7d156397c8e9240aa3a1c5a7686f57599a70a6d2321b8f3c2e

Download Submit
C:\Users\Admin\AppData\Roaming\ZEUYFSYD\FileGrabber\Desktop\ResetOptimize.sql

Filesize
488KB

MD5
b4ff1d7863cd1f108020edfef99c9c27

SHA1
1643c4f424184511b31da9e95613fc24570be9dc

SHA256
ee84195a9442edb3157c34f2ac016daa3acc1dfe4264778d5565d27310cccaf6

SHA512
6c812becc2e5c3adde948bdbde9be8805d5cbcb7a8e8bb76693c1b9da73d4b7807501a36e3cceddcb7a7497c88113e65b9f5df0caa4e7e231ac950548aea1945

Download Submit
C:\Users\Admin\AppData\Roaming\ZEUYFSYD\FileGrabber\Desktop\SelectDismount.ppt

Filesize
462KB

MD5
ac223413c26a3199023af2406203f073

SHA1
c4bfee1ada82acca06ca8ee30a811c5be374fc73

SHA256
ac7796f99e0d2245d8277139d3104d25417e47f35fdf1c7620a94e40f7223f78

SHA512
5fe367a7cffb000dc99c9adbc54aa17960cba022b9aada5fc463eeeadd1fc7be0d758f9cc948d48dc214ef90ebe644c4c5d54ccb3c18b90710c45af0931f3458

Download Submit
C:\Users\Admin\AppData\Roaming\ZEUYFSYD\FileGrabber\Documents\BlockStart.pptx

Filesize
1.2MB

MD5
6d2fd55dfff68684cf13013271bca728

SHA1
b5286da95b5b36168aaedee7dcce7c4a5c2f9034

SHA256
0db20a5440be72d77a7d9f788b0b9e66601a0e511f45efcda940f83088d06742

SHA512
5afd1a3791aa18a0767ea37d37cfa7880dcd618e6423b121698214f266304fecdfeb73b20fdf08be39438aebb18ab78346f2e103f6a19b87d64c9d1a04e87f9a

Download Submit
C:\Users\Admin\AppData\Roaming\ZEUYFSYD\FileGrabber\Documents\ConvertClose.xlsx

Filesize
3.2MB

MD5
682c88188c94b1f648e917fb5d1b6cf5

SHA1
809d483ee51e61fcbf148c8bf6fb55af9118248b

SHA256
68514a63715f5675bfb74bb645411e0be3c0756bf573e2cdc38c10fbffc645c7

SHA512
3c3e28bf94796e9083b026566b5c23e5f7c66c646e326a73100e4e77bea44bdd668d24411eb507bda6e48382b5c2e66fa37bcd11e3c2f245cd83b71cd86bc66f

Download Submit
C:\Users\Admin\AppData\Roaming\ZEUYFSYD\FileGrabber\Downloads\CloseWatch.jpeg

Filesize
298KB

MD5
0fae5ee5f574581dc72ee9040dd84bc7

SHA1
fe28b1519fc5fd3e04806456f69462eaf2ade44b

SHA256
9250837955ad68a091f8300e63cbbee4b371f41d218f0999ab6c78e1ad89b165

SHA512
eb1cff4e2320b5a5e062b4156baf9cb7885e05ec201c9070ea418f7efb454c9939d572e1d9ff39cab5eae96b2cb051ff8783e3e0b0d6e7c4ec06180bee959f9f

Download Submit
C:\Users\Admin\AppData\Roaming\ZEUYFSYD\FileGrabber\Downloads\EnablePop.docx

Filesize
445KB

MD5
349cce47951b11d78665781cb7d33d7f

SHA1
456e3edc11bd34f66da52eb0abf1f814c3109635

SHA256
122dadbd99845258c407d1637a6f766181836a144ad3b43065c71a94edfeddd7

SHA512
bc2b823fb4e0f829bbfadfdaf06f739b160ac3248bbefb176f8cebce363ed01f99cddcffab9f9718bca8bb6079eba98f116fbbc82446d43adf1707bc449f8463

Download Submit
C:\Users\Admin\AppData\Roaming\ZEUYFSYD\Process.txt

Filesize
4KB

MD5
96684125d5f48edebbbf512500a67cd7

SHA1
1a775e348aad1d7e7046f8859b5804dcc7eb7ef6

SHA256
c2e2f42dea50330a006b28aa74cb089327dccc3caecbb5e191750960d9eeeda2

SHA512
a3b0d26db39e566abfe808409509590d3cc73db51f316a8b9b24adb636448f6869a3f571fd0064ac0f179a031e3d280efd4ddd1d6249f1c241987ba5abe9161e

Download Submit
memory/2196-50-0x0000000074F00000-0x00000000754B1000-memory.dmp

Filesize
5.7MB

Download
memory/2196-0-0x0000000074F02000-0x0000000074F03000-memory.dmp

Filesize
4KB

Download
memory/2196-2-0x0000000074F00000-0x00000000754B1000-memory.dmp

Filesize
5.7MB

Download
memory/2196-1-0x0000000074F00000-0x00000000754B1000-memory.dmp

Filesize
5.7MB

Download
memory/3728-16-0x0000000000290000-0x00000000002E6000-memory.dmp

Filesize
344KB

Download
memory/3728-56-0x0000000006490000-0x00000000064F6000-memory.dmp

Filesize
408KB

Download
memory/3728-54-0x00000000065F0000-0x0000000006B94000-memory.dmp

Filesize
5.6MB

Download
memory/3728-53-0x0000000005FA0000-0x0000000006032000-memory.dmp

Filesize
584KB

Download
memory/3728-24-0x0000000071E90000-0x0000000072640000-memory.dmp

Filesize
7.7MB

Download
memory/3728-15-0x0000000071E9E000-0x0000000071E9F000-memory.dmp

Filesize
4KB

Download
memory/3728-270-0x0000000071E9E000-0x0000000071E9F000-memory.dmp

Filesize
4KB

Download
memory/3728-271-0x0000000071E90000-0x0000000072640000-memory.dmp

Filesize
7.7MB

Download