blustealer | 1f2c72f6dc8280281f42c3acdd98c603f35a4ae6030de80ce1641b27ab9ee96d

General

Target

1f2c72f6dc8280281f42c3acdd98c603f35a4ae6030de80ce1641b27ab9ee96d.exe
Size

201KB
MD5

366ef4563060fcaca0bd77637f4521f1
SHA1

5f3d5371fe0f421275258bfc1682f6966e54bfc4
SHA256

1f2c72f6dc8280281f42c3acdd98c603f35a4ae6030de80ce1641b27ab9ee96d
SHA512

41b34689ecf26cc19ebbc787964b038804d95e106f55531fa7239032942a2b55083ed7b0c50ef9be9ec9d8cca40affeb2484ff79a2dd6f22f7383c81079f2bad

Score

10^/10

blustealer stormkitty collection stealer

Malware Config

Signatures

BluStealer
A Modular information stealer written in Visual Basic.
stealer blustealer
StormKitty
StormKitty is an open source info stealer written in C#.
stealer stormkitty

StormKitty payload 4 IoCs

resource	yara_rule
behavioral1/memory/1496-69-0x00000000001D0000-0x00000000001EA000-memory.dmp	family_stormkitty
behavioral1/memory/1496-70-0x00000000001E4F6E-mapping.dmp	family_stormkitty
behavioral1/memory/1496-72-0x00000000001D0000-0x00000000001EA000-memory.dmp	family_stormkitty
behavioral1/memory/1496-74-0x00000000001D0000-0x00000000001EA000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-335065374-4263250628-1829373619-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-335065374-4263250628-1829373619-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-335065374-4263250628-1829373619-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

Looks up external IP address via web service 1 IoCs

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

flow	ioc
4	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1808 set thread context of 1884	1808	1f2c72f6dc8280281f42c3acdd98c603f35a4ae6030de80ce1641b27ab9ee96d.exe	27
PID 1884 set thread context of 1496	1884	cvtres.exe	28

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	AppLaunch.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	AppLaunch.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1496	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1884	cvtres.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1808 wrote to memory of 1884	1808	1f2c72f6dc8280281f42c3acdd98c603f35a4ae6030de80ce1641b27ab9ee96d.exe	27
PID 1808 wrote to memory of 1884	1808	1f2c72f6dc8280281f42c3acdd98c603f35a4ae6030de80ce1641b27ab9ee96d.exe	27
PID 1808 wrote to memory of 1884	1808	1f2c72f6dc8280281f42c3acdd98c603f35a4ae6030de80ce1641b27ab9ee96d.exe	27
PID 1808 wrote to memory of 1884	1808	1f2c72f6dc8280281f42c3acdd98c603f35a4ae6030de80ce1641b27ab9ee96d.exe	27
PID 1808 wrote to memory of 1884	1808	1f2c72f6dc8280281f42c3acdd98c603f35a4ae6030de80ce1641b27ab9ee96d.exe	27
PID 1808 wrote to memory of 1884	1808	1f2c72f6dc8280281f42c3acdd98c603f35a4ae6030de80ce1641b27ab9ee96d.exe	27
PID 1808 wrote to memory of 1884	1808	1f2c72f6dc8280281f42c3acdd98c603f35a4ae6030de80ce1641b27ab9ee96d.exe	27
PID 1808 wrote to memory of 1884	1808	1f2c72f6dc8280281f42c3acdd98c603f35a4ae6030de80ce1641b27ab9ee96d.exe	27
PID 1808 wrote to memory of 1884	1808	1f2c72f6dc8280281f42c3acdd98c603f35a4ae6030de80ce1641b27ab9ee96d.exe	27
PID 1884 wrote to memory of 1496	1884	cvtres.exe	28
PID 1884 wrote to memory of 1496	1884	cvtres.exe	28
PID 1884 wrote to memory of 1496	1884	cvtres.exe	28
PID 1884 wrote to memory of 1496	1884	cvtres.exe	28
PID 1884 wrote to memory of 1496	1884	cvtres.exe	28
PID 1884 wrote to memory of 1496	1884	cvtres.exe	28
PID 1884 wrote to memory of 1496	1884	cvtres.exe	28
PID 1884 wrote to memory of 1496	1884	cvtres.exe	28
PID 1884 wrote to memory of 1496	1884	cvtres.exe	28

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-335065374-4263250628-1829373619-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-335065374-4263250628-1829373619-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\1f2c72f6dc8280281f42c3acdd98c603f35a4ae6030de80ce1641b27ab9ee96d.exe
"C:\Users\Admin\AppData\Local\Temp\1f2c72f6dc8280281f42c3acdd98c603f35a4ae6030de80ce1641b27ab9ee96d.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1808
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1884
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    3⤵
    - Accesses Microsoft Outlook profiles
    - Checks processor information in registry
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:1496

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1496-67-0x00000000001D0000-0x00000000001EA000-memory.dmp

Filesize
104KB

Download
memory/1496-74-0x00000000001D0000-0x00000000001EA000-memory.dmp

Filesize
104KB

Download
memory/1496-72-0x00000000001D0000-0x00000000001EA000-memory.dmp

Filesize
104KB

Download
memory/1496-69-0x00000000001D0000-0x00000000001EA000-memory.dmp

Filesize
104KB

Download
memory/1808-54-0x0000000000330000-0x0000000000364000-memory.dmp

Filesize
208KB

Download
memory/1884-58-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1884-66-0x0000000075021000-0x0000000075023000-memory.dmp

Filesize
8KB

Download
memory/1884-63-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1884-60-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1884-56-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1884-55-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1884-76-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download

Analysis

Sharing