stormkitty | 501317a60d63bac59b9cc6994cd4d03207a929ab689939d062635656b4ed8231

Analysis

max time kernel
59s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
26-08-2022 06:32

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General

Target

CfGQYemJHRdTnFG.exe
Size

117KB
MD5

19358aa5a8795a331a7f742e98ee5e58
SHA1

a94378675c169915e3b11ae3ac8b3a0a17f714ac
SHA256

cd1124d49f6e248b69e167e7fb5914040da63675486608cfa035082a837fe6ff
SHA512

fbd3b723e1c6684a01b24edd711a1d361052e92d5e76870f7b2141800a3542ee714872823183b25a79542bb6cb7b7564df1b04962ab0de3bd9333800a57363ae
SSDEEP

3072:ZaOqc4zX7NK4w0qVc6j2D9bW0YBDrUbpgDwk:fF4zX7NKUGjg9ba

Score

10^/10

stormkitty spyware stealer

Malware Config

Signatures

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

StormKitty payload 1 IoCs

resource	yara_rule
behavioral19/memory/1884-54-0x0000000000010000-0x0000000000032000-memory.dmp	family_stormkitty

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
T1081
Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1256	1884	WerFault.exe	26

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474	CfGQYemJHRdTnFG.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 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	CfGQYemJHRdTnFG.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1884	CfGQYemJHRdTnFG.exe
1884	CfGQYemJHRdTnFG.exe
1884	CfGQYemJHRdTnFG.exe
2044	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1884	CfGQYemJHRdTnFG.exe
Token: SeDebugPrivilege	2044	powershell.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 1884 wrote to memory of 988	1884	CfGQYemJHRdTnFG.exe	28
PID 1884 wrote to memory of 988	1884	CfGQYemJHRdTnFG.exe	28
PID 1884 wrote to memory of 988	1884	CfGQYemJHRdTnFG.exe	28
PID 988 wrote to memory of 2012	988	cmd.exe	30
PID 988 wrote to memory of 2012	988	cmd.exe	30
PID 988 wrote to memory of 2012	988	cmd.exe	30
PID 988 wrote to memory of 820	988	cmd.exe	31
PID 988 wrote to memory of 820	988	cmd.exe	31
PID 988 wrote to memory of 820	988	cmd.exe	31
PID 988 wrote to memory of 1264	988	cmd.exe	32
PID 988 wrote to memory of 1264	988	cmd.exe	32
PID 988 wrote to memory of 1264	988	cmd.exe	32
PID 1884 wrote to memory of 1660	1884	CfGQYemJHRdTnFG.exe	33
PID 1884 wrote to memory of 1660	1884	CfGQYemJHRdTnFG.exe	33
PID 1884 wrote to memory of 1660	1884	CfGQYemJHRdTnFG.exe	33
PID 1660 wrote to memory of 1848	1660	cmd.exe	35
PID 1660 wrote to memory of 1848	1660	cmd.exe	35
PID 1660 wrote to memory of 1848	1660	cmd.exe	35
PID 1660 wrote to memory of 840	1660	cmd.exe	36
PID 1660 wrote to memory of 840	1660	cmd.exe	36
PID 1660 wrote to memory of 840	1660	cmd.exe	36
PID 1884 wrote to memory of 2044	1884	CfGQYemJHRdTnFG.exe	37
PID 1884 wrote to memory of 2044	1884	CfGQYemJHRdTnFG.exe	37
PID 1884 wrote to memory of 2044	1884	CfGQYemJHRdTnFG.exe	37
PID 1884 wrote to memory of 1256	1884	CfGQYemJHRdTnFG.exe	39
PID 1884 wrote to memory of 1256	1884	CfGQYemJHRdTnFG.exe	39
PID 1884 wrote to memory of 1256	1884	CfGQYemJHRdTnFG.exe	39

C:\Users\Admin\AppData\Local\Temp\CfGQYemJHRdTnFG.exe
"C:\Users\Admin\AppData\Local\Temp\CfGQYemJHRdTnFG.exe"
1⤵
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1884
- C:\Windows\system32\cmd.exe
  "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:988
- - C:\Windows\system32\chcp.com
    chcp 65001
    3⤵
    PID:2012
- - C:\Windows\system32\netsh.exe
    netsh wlan show profile
    3⤵
    PID:820
- - C:\Windows\system32\findstr.exe
    findstr All
    3⤵
    PID:1264
- C:\Windows\system32\cmd.exe
  "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1660
- - C:\Windows\system32\chcp.com
    chcp 65001
    3⤵
    PID:1848
- - C:\Windows\system32\netsh.exe
    netsh wlan show networks mode=bssid
    3⤵
    PID:840
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" $source = 'C:\Users\Admin\AppData\Local\26657379f72a1daf37c54c9b62f1f431\Admin@GRXNNIIE_en-US';;$destination = 'C:\Users\Admin\AppData\Roaming/Admin-logs.zip';;If(Test-path $destination) {Remove-item $destination};;Add-Type -assembly 'system.io.compression.filesystem';;[io.compression.zipfile]::CreateFromDirectory($Source, $destination)
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2044
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 1884 -s 2032
  2⤵
  - Program crash
  PID:1256

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Install Root Certificate

T1130

Modify Registry

T1112

Web Service

T1102

Credential Access

Credentials in Files

T1081

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

memory/820-59-0x000007FEFB5C1000-0x000007FEFB5C3000-memory.dmp

Filesize
8KB

Download
memory/1884-54-0x0000000000010000-0x0000000000032000-memory.dmp

Filesize
136KB

Download
memory/1884-67-0x000000001D246000-0x000000001D265000-memory.dmp

Filesize
124KB

Download
memory/2044-66-0x000007FEEBAE0000-0x000007FEEC503000-memory.dmp

Filesize
10.1MB

Download
memory/2044-69-0x00000000026B4000-0x00000000026B7000-memory.dmp

Filesize
12KB

Download
memory/2044-68-0x000007FEEAF80000-0x000007FEEBADD000-memory.dmp

Filesize
11.4MB

Download
memory/2044-71-0x00000000026B4000-0x00000000026B7000-memory.dmp

Filesize
12KB

Download
memory/2044-72-0x00000000026BB000-0x00000000026DA000-memory.dmp

Filesize
124KB

Download