blustealer | f2ca13bec0a58da06631590d73880cce7dddf5f7b145ede8b63c6727839c14f3

General

Target

SecuriteInfo.com.Trojan.PackedNET.1293.1820.15114.exe
Size

170KB
MD5

188eeefe57b2521c175f3681117fd7a9
SHA1

8f6e5271b1b0ef3a5c72553e0308882f4a0b28df
SHA256

f2ca13bec0a58da06631590d73880cce7dddf5f7b145ede8b63c6727839c14f3
SHA512

d843eeb728bf8fb0d919316e90844a2e2a3dcbacc17dc553f4340c0d7a71498fc74ca5cc79860ff578cf650dfdd37b3307d9c77844b96fe6475674b32e3d1327
SSDEEP

3072:CQvOvQE0yIWR63PphdLrk3lcYxGdNPK39B00MrZUc/lZvPV2a5BptR65tsWHm:CQURbIWRKPpDLrk6IENCtf+ZUc/ltVRF

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/3840-140-0x0000000001310000-0x000000000132A000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\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
13	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 5016 set thread context of 4480	5016	SecuriteInfo.com.Trojan.PackedNET.1293.1820.15114.exe	78
PID 4480 set thread context of 3840	4480	cvtres.exe	83

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	3840	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4480	cvtres.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 5016 wrote to memory of 4480	5016	SecuriteInfo.com.Trojan.PackedNET.1293.1820.15114.exe	78
PID 5016 wrote to memory of 4480	5016	SecuriteInfo.com.Trojan.PackedNET.1293.1820.15114.exe	78
PID 5016 wrote to memory of 4480	5016	SecuriteInfo.com.Trojan.PackedNET.1293.1820.15114.exe	78
PID 5016 wrote to memory of 4480	5016	SecuriteInfo.com.Trojan.PackedNET.1293.1820.15114.exe	78
PID 5016 wrote to memory of 4480	5016	SecuriteInfo.com.Trojan.PackedNET.1293.1820.15114.exe	78
PID 5016 wrote to memory of 4480	5016	SecuriteInfo.com.Trojan.PackedNET.1293.1820.15114.exe	78
PID 5016 wrote to memory of 4480	5016	SecuriteInfo.com.Trojan.PackedNET.1293.1820.15114.exe	78
PID 5016 wrote to memory of 4480	5016	SecuriteInfo.com.Trojan.PackedNET.1293.1820.15114.exe	78
PID 4480 wrote to memory of 3840	4480	cvtres.exe	83
PID 4480 wrote to memory of 3840	4480	cvtres.exe	83
PID 4480 wrote to memory of 3840	4480	cvtres.exe	83
PID 4480 wrote to memory of 3840	4480	cvtres.exe	83
PID 4480 wrote to memory of 3840	4480	cvtres.exe	83

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.PackedNET.1293.1820.15114.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.PackedNET.1293.1820.15114.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5016
- 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:4480
- - 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:3840

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

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Downloads

memory/3840-140-0x0000000001310000-0x000000000132A000-memory.dmp

Filesize
104KB

Download
memory/3840-141-0x00000000057B0000-0x0000000005816000-memory.dmp

Filesize
408KB

Download
memory/3840-142-0x0000000006120000-0x00000000061BC000-memory.dmp

Filesize
624KB

Download
memory/4480-134-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4480-136-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4480-143-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/5016-132-0x0000000000430000-0x000000000045E000-memory.dmp

Filesize
184KB

Download

Analysis

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