blustealer | e7ad0d4818864258099fb12565bf8c2ae0133e8aca18479535a8641af5a54650

General

Target

SecuriteInfo.com.Trojan.PackedNET.738.23341.25620.exe
Size

720KB
MD5

0a8a8bb51b44f7f6ccd46e5d1eb1d18a
SHA1

344087770607b1d798119e7ca80a791ccc78e8d7
SHA256

e7ad0d4818864258099fb12565bf8c2ae0133e8aca18479535a8641af5a54650
SHA512

fd177bafd084f79335e2a39d52792d63d663726a1cf7e6f3870d23880470fc98fa0dc4fb6f13729813ae849d342a6ccb3bd6eacf725b8cb7d0de76a8da7c1993
SSDEEP

6144:8MTl4yBAYL3m8YIuu55dZro8g4RhNr2QospDh9uNwIzOvvWVxCjZyk67Wvfih0mi:8MHPLW8z75za8ZRjrVxvut+vrdyz7

Score

10^/10

blustealer stormkitty collection stealer

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5576673774:AAF__hFRh9bcJV72HkFb-9eZR9JNNyuOmFM/sendMessage?chat_id=1194722650

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 1 IoCs

resource	yara_rule
behavioral2/memory/3908-147-0x0000000001320000-0x000000000133A000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\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
45	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1892 set thread context of 3500	1892	SecuriteInfo.com.Trojan.PackedNET.738.23341.25620.exe	90
PID 3500 set thread context of 3908	3500	RegSvcs.exe	91

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 behavior: EnumeratesProcesses 4 IoCs

pid	Process
1892	SecuriteInfo.com.Trojan.PackedNET.738.23341.25620.exe
1892	SecuriteInfo.com.Trojan.PackedNET.738.23341.25620.exe
1892	SecuriteInfo.com.Trojan.PackedNET.738.23341.25620.exe
1892	SecuriteInfo.com.Trojan.PackedNET.738.23341.25620.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1892	SecuriteInfo.com.Trojan.PackedNET.738.23341.25620.exe
Token: SeDebugPrivilege	3908	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3500	RegSvcs.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1892 wrote to memory of 3496	1892	SecuriteInfo.com.Trojan.PackedNET.738.23341.25620.exe	88
PID 1892 wrote to memory of 3496	1892	SecuriteInfo.com.Trojan.PackedNET.738.23341.25620.exe	88
PID 1892 wrote to memory of 3496	1892	SecuriteInfo.com.Trojan.PackedNET.738.23341.25620.exe	88
PID 1892 wrote to memory of 5052	1892	SecuriteInfo.com.Trojan.PackedNET.738.23341.25620.exe	89
PID 1892 wrote to memory of 5052	1892	SecuriteInfo.com.Trojan.PackedNET.738.23341.25620.exe	89
PID 1892 wrote to memory of 5052	1892	SecuriteInfo.com.Trojan.PackedNET.738.23341.25620.exe	89
PID 1892 wrote to memory of 3500	1892	SecuriteInfo.com.Trojan.PackedNET.738.23341.25620.exe	90
PID 1892 wrote to memory of 3500	1892	SecuriteInfo.com.Trojan.PackedNET.738.23341.25620.exe	90
PID 1892 wrote to memory of 3500	1892	SecuriteInfo.com.Trojan.PackedNET.738.23341.25620.exe	90
PID 1892 wrote to memory of 3500	1892	SecuriteInfo.com.Trojan.PackedNET.738.23341.25620.exe	90
PID 1892 wrote to memory of 3500	1892	SecuriteInfo.com.Trojan.PackedNET.738.23341.25620.exe	90
PID 1892 wrote to memory of 3500	1892	SecuriteInfo.com.Trojan.PackedNET.738.23341.25620.exe	90
PID 1892 wrote to memory of 3500	1892	SecuriteInfo.com.Trojan.PackedNET.738.23341.25620.exe	90
PID 1892 wrote to memory of 3500	1892	SecuriteInfo.com.Trojan.PackedNET.738.23341.25620.exe	90
PID 3500 wrote to memory of 3908	3500	RegSvcs.exe	91
PID 3500 wrote to memory of 3908	3500	RegSvcs.exe	91
PID 3500 wrote to memory of 3908	3500	RegSvcs.exe	91
PID 3500 wrote to memory of 3908	3500	RegSvcs.exe	91
PID 3500 wrote to memory of 3908	3500	RegSvcs.exe	91

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.PackedNET.738.23341.25620.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.PackedNET.738.23341.25620.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1892
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  PID:3496
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  PID:5052
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3500
- - 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:3908

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

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Downloads

memory/1892-132-0x0000000000D90000-0x0000000000E4A000-memory.dmp

Filesize
744KB

Download
memory/1892-133-0x0000000005E60000-0x0000000006404000-memory.dmp

Filesize
5.6MB

Download
memory/1892-134-0x00000000057E0000-0x0000000005872000-memory.dmp

Filesize
584KB

Download
memory/1892-135-0x0000000005880000-0x000000000588A000-memory.dmp

Filesize
40KB

Download
memory/1892-136-0x00000000094E0000-0x000000000957C000-memory.dmp

Filesize
624KB

Download
memory/1892-137-0x0000000009580000-0x00000000095E6000-memory.dmp

Filesize
408KB

Download
memory/3500-141-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/3500-143-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/3500-148-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/3908-147-0x0000000001320000-0x000000000133A000-memory.dmp

Filesize
104KB

Download

Analysis

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