stormkitty | 6e3816fe96ae72f3c7695e1a64225ed36ff8a7e61f0fb192447cb14d5736dcea

Analysis

max time kernel
151s
max time network
110s
platform
windows10_x64
resource
win10v20210408
submitted
14-04-2021 06:42

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General

Target

00909000870.exe
Size

1.1MB
MD5

b6d292139cbd769bfa7c005cbc3a8202
SHA1

f12d48f3aa3a1910795a12fbc57b32d24145af73
SHA256

6e3816fe96ae72f3c7695e1a64225ed36ff8a7e61f0fb192447cb14d5736dcea
SHA512

3cde67951d45796bf76c7724db52cc2bf64d40cf55e5bb751c98a0028ea309549f0344f1c0e1adf32c384441a02507cbfbaf0476761bebc37f5816079472dc6a

Score

10^/10

stormkitty 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
behavioral2/memory/3164-120-0x0000000000400000-0x00000000004B2000-memory.dmp	family_stormkitty
behavioral2/memory/3164-121-0x00000000004A734E-mapping.dmp	family_stormkitty

Loads dropped DLL 1 IoCs

pid	Process
568	00909000870.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 568 set thread context of 3208	568	00909000870.exe	75
PID 3208 set thread context of 3164	3208	00909000870.exe	76
PID 3208 set thread context of 2956	3208	00909000870.exe	77
PID 3208 set thread context of 3032	3208	00909000870.exe	83

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
3968	3164	WerFault.exe	76

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
3968	WerFault.exe
3968	WerFault.exe
3968	WerFault.exe
3968	WerFault.exe
3968	WerFault.exe
3968	WerFault.exe
3968	WerFault.exe
3968	WerFault.exe
3968	WerFault.exe
3968	WerFault.exe
3968	WerFault.exe
3968	WerFault.exe
3968	WerFault.exe
3968	WerFault.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3208	00909000870.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
568	00909000870.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeRestorePrivilege	3968	WerFault.exe
Token: SeBackupPrivilege	3968	WerFault.exe
Token: SeDebugPrivilege	3968	WerFault.exe
Token: SeDebugPrivilege	3032	InstallUtil.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3208	00909000870.exe
3208	00909000870.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3208	00909000870.exe
3208	00909000870.exe
3032	InstallUtil.exe
3032	InstallUtil.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 568 wrote to memory of 3208	568	00909000870.exe	75
PID 568 wrote to memory of 3208	568	00909000870.exe	75
PID 568 wrote to memory of 3208	568	00909000870.exe	75
PID 568 wrote to memory of 3208	568	00909000870.exe	75
PID 3208 wrote to memory of 3164	3208	00909000870.exe	76
PID 3208 wrote to memory of 3164	3208	00909000870.exe	76
PID 3208 wrote to memory of 3164	3208	00909000870.exe	76
PID 3208 wrote to memory of 3164	3208	00909000870.exe	76
PID 3208 wrote to memory of 3164	3208	00909000870.exe	76
PID 3208 wrote to memory of 3164	3208	00909000870.exe	76
PID 3208 wrote to memory of 3164	3208	00909000870.exe	76
PID 3208 wrote to memory of 3164	3208	00909000870.exe	76
PID 3208 wrote to memory of 2956	3208	00909000870.exe	77
PID 3208 wrote to memory of 2956	3208	00909000870.exe	77
PID 3208 wrote to memory of 2956	3208	00909000870.exe	77
PID 3208 wrote to memory of 2956	3208	00909000870.exe	77
PID 3208 wrote to memory of 2956	3208	00909000870.exe	77
PID 3208 wrote to memory of 2956	3208	00909000870.exe	77
PID 3208 wrote to memory of 2956	3208	00909000870.exe	77
PID 3208 wrote to memory of 2956	3208	00909000870.exe	77
PID 3208 wrote to memory of 3032	3208	00909000870.exe	83
PID 3208 wrote to memory of 3032	3208	00909000870.exe	83
PID 3208 wrote to memory of 3032	3208	00909000870.exe	83
PID 3208 wrote to memory of 3032	3208	00909000870.exe	83
PID 3208 wrote to memory of 3032	3208	00909000870.exe	83
PID 3208 wrote to memory of 3032	3208	00909000870.exe	83
PID 3208 wrote to memory of 3032	3208	00909000870.exe	83
PID 3208 wrote to memory of 3032	3208	00909000870.exe	83
PID 3208 wrote to memory of 4000	3208	00909000870.exe	84
PID 3208 wrote to memory of 4000	3208	00909000870.exe	84
PID 3208 wrote to memory of 4000	3208	00909000870.exe	84
PID 4000 wrote to memory of 3856	4000	WinMail.exe	85
PID 4000 wrote to memory of 3856	4000	WinMail.exe	85

C:\Users\Admin\AppData\Local\Temp\00909000870.exe
"C:\Users\Admin\AppData\Local\Temp\00909000870.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:568
- C:\Users\Admin\AppData\Local\Temp\00909000870.exe
  "C:\Users\Admin\AppData\Local\Temp\00909000870.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3208
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    PID:3164
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3164 -s 932
      4⤵
      Program crash
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3968
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
    3⤵
    PID:2956
- - 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 SetWindowsHookEx
    PID:3032
- - C:\Program Files (x86)\Windows Mail\WinMail.exe
    "C:\Program Files (x86)\Windows Mail\WinMail" OCInstallUserConfigOE
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4000
  - - C:\Program Files\Windows Mail\WinMail.exe
      "C:\Program Files\Windows Mail\WinMail" OCInstallUserConfigOE
      4⤵
      PID:3856

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/568-116-0x0000000002600000-0x0000000002601000-memory.dmp

Filesize
4KB

Download
memory/568-117-0x0000000002601000-0x0000000002605000-memory.dmp

Filesize
16KB

Download
memory/2956-124-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/3032-191-0x0000000004C61000-0x0000000004C62000-memory.dmp

Filesize
4KB

Download
memory/3032-190-0x0000000004C60000-0x0000000004C61000-memory.dmp

Filesize
4KB

Download
memory/3032-192-0x0000000004C62000-0x0000000004C63000-memory.dmp

Filesize
4KB

Download
memory/3164-186-0x0000000009610000-0x0000000009676000-memory.dmp

Filesize
408KB

Download
memory/3164-133-0x0000000009790000-0x0000000009791000-memory.dmp

Filesize
4KB

Download
memory/3164-132-0x0000000009680000-0x0000000009681000-memory.dmp

Filesize
4KB

Download
memory/3164-120-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3208-127-0x0000000000400000-0x00000000004CF000-memory.dmp

Filesize
828KB

Download