stormkitty | 7a15a21c229fd3f9a2a18f2bb13bf2845a76a3822914c751174b1aa98303b8e8

Analysis

max time kernel
151s
max time network
117s
platform
windows7_x64
resource
win7v20201028
submitted
12-04-2021 06:13

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General

Target

00000998880.exe
Size

1.1MB
MD5

b75196ccea3a4ed66a87e7a98595b27f
SHA1

db65efb2c2f426165479a6b9f70700d61f56b6e2
SHA256

7a15a21c229fd3f9a2a18f2bb13bf2845a76a3822914c751174b1aa98303b8e8
SHA512

2b23d1b83ecf18cc7ca5cb581691e17704f48320d43e849a527ce5079082c048a35eabb00cc40bf9fd1f207ea1f870de560b283742e8d47228666ed2aa4d49a1

Score

10^/10

stormkitty spyware stealer

Malware Config

Signatures

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

StormKitty Payload 3 IoCs

resource	yara_rule
behavioral1/memory/1432-66-0x0000000000400000-0x00000000004B2000-memory.dmp	family_stormkitty
behavioral1/memory/1432-67-0x00000000004A734E-mapping.dmp	family_stormkitty
behavioral1/memory/1432-71-0x0000000000400000-0x00000000004B2000-memory.dmp	family_stormkitty

Loads dropped DLL 1 IoCs

pid	Process
1908	00000998880.exe

Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1908 set thread context of 1504	1908	00000998880.exe	26
PID 1504 set thread context of 1432	1504	00000998880.exe	27
PID 1504 set thread context of 1960	1504	00000998880.exe	28
PID 1504 set thread context of 328	1504	00000998880.exe	33

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1748	1432	WerFault.exe	27
1612	328	WerFault.exe	33

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
1748	WerFault.exe
1748	WerFault.exe
1748	WerFault.exe
1748	WerFault.exe
1612	WerFault.exe
1612	WerFault.exe
1612	WerFault.exe
1612	WerFault.exe
1612	WerFault.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
1504	00000998880.exe
1748	WerFault.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1908	00000998880.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1748	WerFault.exe
Token: SeDebugPrivilege	328	InstallUtil.exe
Token: SeDebugPrivilege	1612	WerFault.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1504	00000998880.exe
1504	00000998880.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1504	00000998880.exe
1504	00000998880.exe

Suspicious use of WriteProcessMemory 52 IoCs

description	pid	Process	procid_target
PID 1908 wrote to memory of 1504	1908	00000998880.exe	26
PID 1908 wrote to memory of 1504	1908	00000998880.exe	26
PID 1908 wrote to memory of 1504	1908	00000998880.exe	26
PID 1908 wrote to memory of 1504	1908	00000998880.exe	26
PID 1908 wrote to memory of 1504	1908	00000998880.exe	26
PID 1504 wrote to memory of 1432	1504	00000998880.exe	27
PID 1504 wrote to memory of 1432	1504	00000998880.exe	27
PID 1504 wrote to memory of 1432	1504	00000998880.exe	27
PID 1504 wrote to memory of 1432	1504	00000998880.exe	27
PID 1504 wrote to memory of 1432	1504	00000998880.exe	27
PID 1504 wrote to memory of 1432	1504	00000998880.exe	27
PID 1504 wrote to memory of 1432	1504	00000998880.exe	27
PID 1504 wrote to memory of 1432	1504	00000998880.exe	27
PID 1504 wrote to memory of 1432	1504	00000998880.exe	27
PID 1504 wrote to memory of 1432	1504	00000998880.exe	27
PID 1504 wrote to memory of 1432	1504	00000998880.exe	27
PID 1504 wrote to memory of 1432	1504	00000998880.exe	27
PID 1504 wrote to memory of 1960	1504	00000998880.exe	28
PID 1504 wrote to memory of 1960	1504	00000998880.exe	28
PID 1504 wrote to memory of 1960	1504	00000998880.exe	28
PID 1504 wrote to memory of 1960	1504	00000998880.exe	28
PID 1504 wrote to memory of 1960	1504	00000998880.exe	28
PID 1504 wrote to memory of 1960	1504	00000998880.exe	28
PID 1504 wrote to memory of 1960	1504	00000998880.exe	28
PID 1504 wrote to memory of 1960	1504	00000998880.exe	28
PID 1504 wrote to memory of 1960	1504	00000998880.exe	28
PID 1504 wrote to memory of 1960	1504	00000998880.exe	28
PID 1504 wrote to memory of 1960	1504	00000998880.exe	28
PID 1504 wrote to memory of 1960	1504	00000998880.exe	28
PID 1432 wrote to memory of 1748	1432	AppLaunch.exe	29
PID 1432 wrote to memory of 1748	1432	AppLaunch.exe	29
PID 1432 wrote to memory of 1748	1432	AppLaunch.exe	29
PID 1432 wrote to memory of 1748	1432	AppLaunch.exe	29
PID 1432 wrote to memory of 1748	1432	AppLaunch.exe	29
PID 1432 wrote to memory of 1748	1432	AppLaunch.exe	29
PID 1432 wrote to memory of 1748	1432	AppLaunch.exe	29
PID 1504 wrote to memory of 328	1504	00000998880.exe	33
PID 1504 wrote to memory of 328	1504	00000998880.exe	33
PID 1504 wrote to memory of 328	1504	00000998880.exe	33
PID 1504 wrote to memory of 328	1504	00000998880.exe	33
PID 1504 wrote to memory of 328	1504	00000998880.exe	33
PID 1504 wrote to memory of 328	1504	00000998880.exe	33
PID 1504 wrote to memory of 328	1504	00000998880.exe	33
PID 1504 wrote to memory of 328	1504	00000998880.exe	33
PID 1504 wrote to memory of 328	1504	00000998880.exe	33
PID 1504 wrote to memory of 328	1504	00000998880.exe	33
PID 1504 wrote to memory of 328	1504	00000998880.exe	33
PID 1504 wrote to memory of 328	1504	00000998880.exe	33
PID 328 wrote to memory of 1612	328	InstallUtil.exe	34
PID 328 wrote to memory of 1612	328	InstallUtil.exe	34
PID 328 wrote to memory of 1612	328	InstallUtil.exe	34
PID 328 wrote to memory of 1612	328	InstallUtil.exe	34

C:\Users\Admin\AppData\Local\Temp\00000998880.exe
"C:\Users\Admin\AppData\Local\Temp\00000998880.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1908
- C:\Users\Admin\AppData\Local\Temp\00000998880.exe
  "C:\Users\Admin\AppData\Local\Temp\00000998880.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1504
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1432
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1432 -s 636
      4⤵
      Program crash
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of AdjustPrivilegeToken
      PID:1748
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
    3⤵
    PID:1960
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:328
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 328 -s 1060
      4⤵
      Program crash
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1612

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/328-88-0x0000000000660000-0x0000000000661000-memory.dmp

Filesize
4KB

Download
memory/1432-79-0x0000000000A00000-0x0000000000A01000-memory.dmp

Filesize
4KB

Download
memory/1432-66-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1432-71-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1504-63-0x0000000000400000-0x00000000004CF000-memory.dmp

Filesize
828KB

Download
memory/1504-81-0x0000000000770000-0x0000000000771000-memory.dmp

Filesize
4KB

Download
memory/1612-90-0x0000000000200000-0x0000000000201000-memory.dmp

Filesize
4KB

Download
memory/1748-80-0x0000000000320000-0x0000000000338000-memory.dmp

Filesize
96KB

Download
memory/1908-59-0x0000000075781000-0x0000000075783000-memory.dmp

Filesize
8KB

Download
memory/1960-72-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/1960-69-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download