blustealer | 00953bdb9f48f2e3583b16b779d04de51b937ab108972f3e44ad49fc304514c2

General

Target

SecuriteInfo.com.Trojan.DownloaderNET.345.1711.21192.exe
Size

646KB
MD5

ca2212313ca424fb7afab4a05037a499
SHA1

e0e1a2958af4cca5118c7ac08e2c9a6eaeaa8bd6
SHA256

00953bdb9f48f2e3583b16b779d04de51b937ab108972f3e44ad49fc304514c2
SHA512

8d1b218a841c7ded2bf0a7405cffa5e0e4bcf021a022334a599b47d635a2d6c8fa7ec50d52ba6d28366b1de2af624c829fcc19fe2029d45eb2f092927fd028cd
SSDEEP

12288:DMCFXcO4GEDdJii/cJZFGFHeRHA6yRK1HeE7SlGesvKHRskEJ0b0b0b0b0b0b0+q:wYjUG7sF+RA6yRKQE7S3oKxsxWWWWWWG

Score

10^/10

blustealer stormkitty collection spyware stealer

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5627356603:AAG-Mx0TbSHRRW6IwndrpX3VLZdhd6C-Zac/sendMessage?chat_id=5472437377

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/2268-142-0x0000000000FE0000-0x0000000000FFA000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

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 1 IoCs

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

flow	ioc
7	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3936 set thread context of 4840	3936	SecuriteInfo.com.Trojan.DownloaderNET.345.1711.21192.exe	81
PID 4840 set thread context of 2268	4840	Caspol.exe	82

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	2268	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4840	Caspol.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 3936 wrote to memory of 4840	3936	SecuriteInfo.com.Trojan.DownloaderNET.345.1711.21192.exe	81
PID 3936 wrote to memory of 4840	3936	SecuriteInfo.com.Trojan.DownloaderNET.345.1711.21192.exe	81
PID 3936 wrote to memory of 4840	3936	SecuriteInfo.com.Trojan.DownloaderNET.345.1711.21192.exe	81
PID 3936 wrote to memory of 4840	3936	SecuriteInfo.com.Trojan.DownloaderNET.345.1711.21192.exe	81
PID 3936 wrote to memory of 4840	3936	SecuriteInfo.com.Trojan.DownloaderNET.345.1711.21192.exe	81
PID 3936 wrote to memory of 4840	3936	SecuriteInfo.com.Trojan.DownloaderNET.345.1711.21192.exe	81
PID 3936 wrote to memory of 4840	3936	SecuriteInfo.com.Trojan.DownloaderNET.345.1711.21192.exe	81
PID 3936 wrote to memory of 4840	3936	SecuriteInfo.com.Trojan.DownloaderNET.345.1711.21192.exe	81
PID 4840 wrote to memory of 2268	4840	Caspol.exe	82
PID 4840 wrote to memory of 2268	4840	Caspol.exe	82
PID 4840 wrote to memory of 2268	4840	Caspol.exe	82
PID 4840 wrote to memory of 2268	4840	Caspol.exe	82
PID 4840 wrote to memory of 2268	4840	Caspol.exe	82

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.DownloaderNET.345.1711.21192.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.DownloaderNET.345.1711.21192.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3936
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4840
- - 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:2268

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2268-142-0x0000000000FE0000-0x0000000000FFA000-memory.dmp

Filesize
104KB

Download
memory/2268-143-0x0000000005770000-0x00000000057D6000-memory.dmp

Filesize
408KB

Download
memory/2268-144-0x0000000006140000-0x00000000061DC000-memory.dmp

Filesize
624KB

Download
memory/3936-132-0x0000018652B90000-0x0000018652C32000-memory.dmp

Filesize
648KB

Download
memory/3936-137-0x00007FFC57ED0000-0x00007FFC58991000-memory.dmp

Filesize
10.8MB

Download
memory/4840-133-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4840-136-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4840-140-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4840-145-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download

Analysis

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