stormkitty | 4934774c7509bb829881702ef12f2fe40b9537e1a266de55f4b61248553dc248

General

Target

exportcagrifance.exe
Size

204KB
MD5

e7b0bbe1482189169186f932f66fdfd4
SHA1

7011360f134f5c68c5601885abfc7d894728b57d
SHA256

4934774c7509bb829881702ef12f2fe40b9537e1a266de55f4b61248553dc248
SHA512

af0a2d106e5c28234a8c8ab21bbe460cf2cbb1b1f645b6f38cf8f3548e5120b595536107dc8d5c988efac0581610a6aaef561047c704f82f76d9396ec4b789b4

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
behavioral2/memory/3148-116-0x0000000000400000-0x0000000000418000-memory.dmp	family_stormkitty
behavioral2/memory/3148-117-0x0000000000412452-mapping.dmp	family_stormkitty
behavioral2/memory/4036-124-0x0000000000412452-mapping.dmp	family_stormkitty

Executes dropped EXE 2 IoCs

pid	Process
1704	MZ.exe
1540	MZ.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
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
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

Looks up external IP address via web service 2 IoCs

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

flow	ioc
7	icanhazip.com
11	icanhazip.com

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 636 set thread context of 3148	636	exportcagrifance.exe	75
PID 636 set thread context of 4036	636	exportcagrifance.exe	81
PID 636 set thread context of 2268	636	exportcagrifance.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
2336	2268	WerFault.exe	83

Checks processor information in registry 2 TTPs 4 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\Identifier	InstallUtil.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	InstallUtil.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	InstallUtil.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1704	MZ.exe
1704	MZ.exe
1540	MZ.exe
1540	MZ.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
636	exportcagrifance.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1704	MZ.exe
Token: SeDebugPrivilege	1540	MZ.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
636	exportcagrifance.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
636	exportcagrifance.exe
636	exportcagrifance.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 636 wrote to memory of 3148	636	exportcagrifance.exe	75
PID 636 wrote to memory of 3148	636	exportcagrifance.exe	75
PID 636 wrote to memory of 3148	636	exportcagrifance.exe	75
PID 636 wrote to memory of 3148	636	exportcagrifance.exe	75
PID 636 wrote to memory of 3148	636	exportcagrifance.exe	75
PID 636 wrote to memory of 3148	636	exportcagrifance.exe	75
PID 636 wrote to memory of 3148	636	exportcagrifance.exe	75
PID 636 wrote to memory of 3148	636	exportcagrifance.exe	75
PID 3148 wrote to memory of 1704	3148	InstallUtil.exe	80
PID 3148 wrote to memory of 1704	3148	InstallUtil.exe	80
PID 636 wrote to memory of 4036	636	exportcagrifance.exe	81
PID 636 wrote to memory of 4036	636	exportcagrifance.exe	81
PID 636 wrote to memory of 4036	636	exportcagrifance.exe	81
PID 636 wrote to memory of 4036	636	exportcagrifance.exe	81
PID 636 wrote to memory of 4036	636	exportcagrifance.exe	81
PID 636 wrote to memory of 4036	636	exportcagrifance.exe	81
PID 636 wrote to memory of 4036	636	exportcagrifance.exe	81
PID 636 wrote to memory of 4036	636	exportcagrifance.exe	81
PID 4036 wrote to memory of 1540	4036	InstallUtil.exe	82
PID 4036 wrote to memory of 1540	4036	InstallUtil.exe	82
PID 636 wrote to memory of 2268	636	exportcagrifance.exe	83
PID 636 wrote to memory of 2268	636	exportcagrifance.exe	83
PID 636 wrote to memory of 2268	636	exportcagrifance.exe	83
PID 636 wrote to memory of 2268	636	exportcagrifance.exe	83

C:\Users\Admin\AppData\Local\Temp\exportcagrifance.exe
"C:\Users\Admin\AppData\Local\Temp\exportcagrifance.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:636
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"
  2⤵
  - Checks processor information in registry
  - Suspicious use of WriteProcessMemory
  PID:3148
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1704
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"
  2⤵
  - Checks processor information in registry
  - Suspicious use of WriteProcessMemory
  PID:4036
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1540
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"
  2⤵
  PID:2268
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2268 -s 88
    3⤵
    - Program crash
    PID:2336

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1540-131-0x00000000012A0000-0x00000000012A2000-memory.dmp

Filesize
8KB

Download
memory/1704-122-0x0000000002DE0000-0x0000000002DE2000-memory.dmp

Filesize
8KB

Download
memory/3148-118-0x0000000002B40000-0x0000000002B41000-memory.dmp

Filesize
4KB

Download
memory/3148-116-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/4036-126-0x0000000002A00000-0x0000000002A01000-memory.dmp

Filesize
4KB

Download

Analysis

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