stormkitty | 01bac3adf5b25f8dad0afe3fd753eefa5b31f2b3550e44069f594280e084f9b4

Analysis

max time kernel
150s
max time network
124s
platform
windows10_x64
resource
win10v20201028
submitted
31-03-2021 06:59

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General

Target

Ref150420190619A-B0270PEL. pdf.exe
Size

1.0MB
MD5

5ed97211220671294ee925c64b1e3ebc
SHA1

22651d893883c0e0df19df33a31cb75ded09d102
SHA256

01bac3adf5b25f8dad0afe3fd753eefa5b31f2b3550e44069f594280e084f9b4
SHA512

73d7b53b0fe041d06f025842a57149e96aa9b6d52e2983c520ae52ea39c0bd617fd9341a32377bafe9e5d7da86807fbe062add794749f85e98f569dedb18c1a5

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
behavioral2/memory/444-23-0x0000000009260000-0x000000000930C000-memory.dmp	family_stormkitty

Loads dropped DLL 1 IoCs

pid	Process
4688	Ref150420190619A-B0270PEL. pdf.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
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

Suspicious use of SetThreadContext 5 IoCs

description	pid	Process	procid_target
PID 4688 set thread context of 3524	4688	Ref150420190619A-B0270PEL. pdf.exe	75
PID 3524 set thread context of 444	3524	Ref150420190619A-B0270PEL. pdf.exe	76
PID 3524 set thread context of 748	3524	Ref150420190619A-B0270PEL. pdf.exe	77
PID 3524 set thread context of 4176	3524	Ref150420190619A-B0270PEL. pdf.exe	78
PID 3524 set thread context of 1216	3524	Ref150420190619A-B0270PEL. pdf.exe	85

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

System Information Discovery
T1082

Program crash 3 IoCs

pid	pid_target	Process	procid_target
4076	444	WerFault.exe	76
4044	748	WerFault.exe	77
1280	1216	WerFault.exe	85

Suspicious behavior: EnumeratesProcesses 38 IoCs

pid	Process
4688	Ref150420190619A-B0270PEL. pdf.exe
4688	Ref150420190619A-B0270PEL. pdf.exe
4688	Ref150420190619A-B0270PEL. pdf.exe
4688	Ref150420190619A-B0270PEL. pdf.exe
4688	Ref150420190619A-B0270PEL. pdf.exe
4688	Ref150420190619A-B0270PEL. pdf.exe
4688	Ref150420190619A-B0270PEL. pdf.exe
4688	Ref150420190619A-B0270PEL. pdf.exe
4076	WerFault.exe
4076	WerFault.exe
4076	WerFault.exe
4076	WerFault.exe
4076	WerFault.exe
4076	WerFault.exe
4076	WerFault.exe
4076	WerFault.exe
4076	WerFault.exe
4076	WerFault.exe
4076	WerFault.exe
4076	WerFault.exe
4076	WerFault.exe
4076	WerFault.exe
4076	WerFault.exe
4044	WerFault.exe
4044	WerFault.exe
4044	WerFault.exe
4044	WerFault.exe
4044	WerFault.exe
4044	WerFault.exe
4044	WerFault.exe
4044	WerFault.exe
4044	WerFault.exe
4044	WerFault.exe
4044	WerFault.exe
4044	WerFault.exe
4044	WerFault.exe
4044	WerFault.exe
4044	WerFault.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3524	Ref150420190619A-B0270PEL. pdf.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4688	Ref150420190619A-B0270PEL. pdf.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	4176	InstallUtil.exe
Token: SeRestorePrivilege	4076	WerFault.exe
Token: SeBackupPrivilege	4076	WerFault.exe
Token: SeRestorePrivilege	4044	WerFault.exe
Token: SeBackupPrivilege	4044	WerFault.exe
Token: SeDebugPrivilege	4076	WerFault.exe
Token: SeDebugPrivilege	4044	WerFault.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3524	Ref150420190619A-B0270PEL. pdf.exe
3524	Ref150420190619A-B0270PEL. pdf.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3524	Ref150420190619A-B0270PEL. pdf.exe
3524	Ref150420190619A-B0270PEL. pdf.exe
4176	InstallUtil.exe
4176	InstallUtil.exe

Suspicious use of WriteProcessMemory 37 IoCs

description	pid	Process	procid_target
PID 4688 wrote to memory of 3524	4688	Ref150420190619A-B0270PEL. pdf.exe	75
PID 4688 wrote to memory of 3524	4688	Ref150420190619A-B0270PEL. pdf.exe	75
PID 4688 wrote to memory of 3524	4688	Ref150420190619A-B0270PEL. pdf.exe	75
PID 4688 wrote to memory of 3524	4688	Ref150420190619A-B0270PEL. pdf.exe	75
PID 3524 wrote to memory of 444	3524	Ref150420190619A-B0270PEL. pdf.exe	76
PID 3524 wrote to memory of 444	3524	Ref150420190619A-B0270PEL. pdf.exe	76
PID 3524 wrote to memory of 444	3524	Ref150420190619A-B0270PEL. pdf.exe	76
PID 3524 wrote to memory of 444	3524	Ref150420190619A-B0270PEL. pdf.exe	76
PID 3524 wrote to memory of 444	3524	Ref150420190619A-B0270PEL. pdf.exe	76
PID 3524 wrote to memory of 444	3524	Ref150420190619A-B0270PEL. pdf.exe	76
PID 3524 wrote to memory of 444	3524	Ref150420190619A-B0270PEL. pdf.exe	76
PID 3524 wrote to memory of 444	3524	Ref150420190619A-B0270PEL. pdf.exe	76
PID 3524 wrote to memory of 748	3524	Ref150420190619A-B0270PEL. pdf.exe	77
PID 3524 wrote to memory of 748	3524	Ref150420190619A-B0270PEL. pdf.exe	77
PID 3524 wrote to memory of 748	3524	Ref150420190619A-B0270PEL. pdf.exe	77
PID 3524 wrote to memory of 748	3524	Ref150420190619A-B0270PEL. pdf.exe	77
PID 3524 wrote to memory of 748	3524	Ref150420190619A-B0270PEL. pdf.exe	77
PID 3524 wrote to memory of 748	3524	Ref150420190619A-B0270PEL. pdf.exe	77
PID 3524 wrote to memory of 748	3524	Ref150420190619A-B0270PEL. pdf.exe	77
PID 3524 wrote to memory of 748	3524	Ref150420190619A-B0270PEL. pdf.exe	77
PID 3524 wrote to memory of 4176	3524	Ref150420190619A-B0270PEL. pdf.exe	78
PID 3524 wrote to memory of 4176	3524	Ref150420190619A-B0270PEL. pdf.exe	78
PID 3524 wrote to memory of 4176	3524	Ref150420190619A-B0270PEL. pdf.exe	78
PID 3524 wrote to memory of 4176	3524	Ref150420190619A-B0270PEL. pdf.exe	78
PID 3524 wrote to memory of 4176	3524	Ref150420190619A-B0270PEL. pdf.exe	78
PID 3524 wrote to memory of 4176	3524	Ref150420190619A-B0270PEL. pdf.exe	78
PID 3524 wrote to memory of 4176	3524	Ref150420190619A-B0270PEL. pdf.exe	78
PID 3524 wrote to memory of 4176	3524	Ref150420190619A-B0270PEL. pdf.exe	78
PID 3524 wrote to memory of 1216	3524	Ref150420190619A-B0270PEL. pdf.exe	85
PID 3524 wrote to memory of 1216	3524	Ref150420190619A-B0270PEL. pdf.exe	85
PID 3524 wrote to memory of 1216	3524	Ref150420190619A-B0270PEL. pdf.exe	85
PID 3524 wrote to memory of 1216	3524	Ref150420190619A-B0270PEL. pdf.exe	85
PID 3524 wrote to memory of 1896	3524	Ref150420190619A-B0270PEL. pdf.exe	87
PID 3524 wrote to memory of 1896	3524	Ref150420190619A-B0270PEL. pdf.exe	87
PID 3524 wrote to memory of 1896	3524	Ref150420190619A-B0270PEL. pdf.exe	87
PID 1896 wrote to memory of 1868	1896	WinMail.exe	88
PID 1896 wrote to memory of 1868	1896	WinMail.exe	88

C:\Users\Admin\AppData\Local\Temp\Ref150420190619A-B0270PEL. pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Ref150420190619A-B0270PEL. pdf.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4688
- C:\Users\Admin\AppData\Local\Temp\Ref150420190619A-B0270PEL. pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Ref150420190619A-B0270PEL. pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3524
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    PID:444
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 444 -s 984
      4⤵
      Program crash
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4076
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    PID:748
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 748 -s 984
      4⤵
      Program crash
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4044
- - 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:4176
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
    3⤵
    PID:1216
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1216 -s 88
      4⤵
      Program crash
      PID:1280
- - C:\Program Files (x86)\Windows Mail\WinMail.exe
    "C:\Program Files (x86)\Windows Mail\WinMail" OCInstallUserConfigOE
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1896
  - - C:\Program Files\Windows Mail\WinMail.exe
      "C:\Program Files\Windows Mail\WinMail" OCInstallUserConfigOE
      4⤵
      PID:1868

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/444-23-0x0000000009260000-0x000000000930C000-memory.dmp

Filesize
688KB

Download
memory/444-8-0x0000000073190000-0x000000007387E000-memory.dmp

Filesize
6.9MB

Download
memory/444-30-0x0000000009250000-0x0000000009251000-memory.dmp

Filesize
4KB

Download
memory/444-6-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/748-27-0x0000000009710000-0x0000000009711000-memory.dmp

Filesize
4KB

Download
memory/748-31-0x0000000009660000-0x0000000009661000-memory.dmp

Filesize
4KB

Download
memory/748-25-0x0000000009570000-0x0000000009571000-memory.dmp

Filesize
4KB

Download
memory/748-11-0x0000000073190000-0x000000007387E000-memory.dmp

Filesize
6.9MB

Download
memory/1280-49-0x0000000004870000-0x0000000004871000-memory.dmp

Filesize
4KB

Download
memory/3524-16-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4044-34-0x00000000044D0000-0x00000000044D1000-memory.dmp

Filesize
4KB

Download
memory/4044-35-0x00000000044D0000-0x00000000044D1000-memory.dmp

Filesize
4KB

Download
memory/4044-38-0x00000000044D0000-0x00000000044D1000-memory.dmp

Filesize
4KB

Download
memory/4076-33-0x0000000004870000-0x0000000004871000-memory.dmp

Filesize
4KB

Download
memory/4176-32-0x0000000004D60000-0x0000000004D61000-memory.dmp

Filesize
4KB

Download
memory/4176-41-0x00000000056E0000-0x00000000056E1000-memory.dmp

Filesize
4KB

Download
memory/4176-42-0x0000000005670000-0x0000000005671000-memory.dmp

Filesize
4KB

Download
memory/4176-43-0x0000000004D61000-0x0000000004D62000-memory.dmp

Filesize
4KB

Download
memory/4176-44-0x0000000004D62000-0x0000000004D63000-memory.dmp

Filesize
4KB

Download
memory/4176-45-0x0000000008A90000-0x0000000008A91000-memory.dmp

Filesize
4KB

Download
memory/4176-40-0x0000000005B40000-0x0000000005B41000-memory.dmp

Filesize
4KB

Download
memory/4176-39-0x0000000005480000-0x0000000005481000-memory.dmp

Filesize
4KB

Download
memory/4176-37-0x0000000005420000-0x0000000005421000-memory.dmp

Filesize
4KB

Download
memory/4176-14-0x0000000073190000-0x000000007387E000-memory.dmp

Filesize
6.9MB

Download
memory/4176-12-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download