blustealer | a636ac86f3f8c1341dd201eedfd702495aa0e313322d5c1318a5d1b623f0bb9d

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19-10-2024 06:43

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General

Target

5b55d6c34fb68f8b4bc9e361ee038641_JaffaCakes118.exe
Size

684KB
MD5

5b55d6c34fb68f8b4bc9e361ee038641
SHA1

89e0d1840e1d4e6a708e0fabf376609863377a9f
SHA256

a636ac86f3f8c1341dd201eedfd702495aa0e313322d5c1318a5d1b623f0bb9d
SHA512

c45fb18cf1cf3aaea3ccc4425e12841c7c90cb610894f85e19c5fe831bfb8e93aab92572688a07e0677fd829023e5a963ff894045eef98941b54da56befffffc
SSDEEP

12288:0XCYJDX9rBoUX58/sSHZ4+3hGx5DkYjSs2:JYJDFBFX5CsMQ5dSs2

Score

10^/10

blustealer discovery persistence stealer

Malware Config

Extracted

Family

blustealer

Credentials

Protocol: smtp
Host:
reptw.xyz
Port:
587
Username:
[email protected]
Password:
52u[w;$s$7Mn

Signatures

BluStealer
A Modular information stealer written in Visual Basic.
stealer blustealer

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\paint = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\paint\\paint.exe\""	5b55d6c34fb68f8b4bc9e361ee038641_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2408 set thread context of 10480	2408	5b55d6c34fb68f8b4bc9e361ee038641_JaffaCakes118.exe	31

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5b55d6c34fb68f8b4bc9e361ee038641_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5b55d6c34fb68f8b4bc9e361ee038641_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2408	5b55d6c34fb68f8b4bc9e361ee038641_JaffaCakes118.exe
2408	5b55d6c34fb68f8b4bc9e361ee038641_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2408	5b55d6c34fb68f8b4bc9e361ee038641_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
10480	5b55d6c34fb68f8b4bc9e361ee038641_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2408 wrote to memory of 10480	2408	5b55d6c34fb68f8b4bc9e361ee038641_JaffaCakes118.exe	31
PID 2408 wrote to memory of 10480	2408	5b55d6c34fb68f8b4bc9e361ee038641_JaffaCakes118.exe	31
PID 2408 wrote to memory of 10480	2408	5b55d6c34fb68f8b4bc9e361ee038641_JaffaCakes118.exe	31
PID 2408 wrote to memory of 10480	2408	5b55d6c34fb68f8b4bc9e361ee038641_JaffaCakes118.exe	31
PID 2408 wrote to memory of 10480	2408	5b55d6c34fb68f8b4bc9e361ee038641_JaffaCakes118.exe	31
PID 2408 wrote to memory of 10480	2408	5b55d6c34fb68f8b4bc9e361ee038641_JaffaCakes118.exe	31
PID 2408 wrote to memory of 10480	2408	5b55d6c34fb68f8b4bc9e361ee038641_JaffaCakes118.exe	31
PID 2408 wrote to memory of 10480	2408	5b55d6c34fb68f8b4bc9e361ee038641_JaffaCakes118.exe	31
PID 2408 wrote to memory of 10480	2408	5b55d6c34fb68f8b4bc9e361ee038641_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\5b55d6c34fb68f8b4bc9e361ee038641_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\5b55d6c34fb68f8b4bc9e361ee038641_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2408
- C:\Users\Admin\AppData\Local\Temp\5b55d6c34fb68f8b4bc9e361ee038641_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\5b55d6c34fb68f8b4bc9e361ee038641_JaffaCakes118.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:10480

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2408-14-0x0000000004E90000-0x0000000004EFC000-memory.dmp

Filesize
432KB

Download
memory/2408-3-0x0000000074C1E000-0x0000000074C1F000-memory.dmp

Filesize
4KB

Download
memory/2408-2-0x0000000074C10000-0x00000000752FE000-memory.dmp

Filesize
6.9MB

Download
memory/2408-12-0x0000000004E90000-0x0000000004EFC000-memory.dmp

Filesize
432KB

Download
memory/2408-4-0x0000000074C10000-0x00000000752FE000-memory.dmp

Filesize
6.9MB

Download
memory/2408-5-0x0000000004DA0000-0x0000000004E48000-memory.dmp

Filesize
672KB

Download
memory/2408-6-0x0000000004E90000-0x0000000004F02000-memory.dmp

Filesize
456KB

Download
memory/2408-40-0x0000000004E90000-0x0000000004EFC000-memory.dmp

Filesize
432KB

Download
memory/2408-38-0x0000000004E90000-0x0000000004EFC000-memory.dmp

Filesize
432KB

Download
memory/2408-36-0x0000000004E90000-0x0000000004EFC000-memory.dmp

Filesize
432KB

Download
memory/2408-34-0x0000000004E90000-0x0000000004EFC000-memory.dmp

Filesize
432KB

Download
memory/2408-32-0x0000000004E90000-0x0000000004EFC000-memory.dmp

Filesize
432KB

Download
memory/2408-30-0x0000000004E90000-0x0000000004EFC000-memory.dmp

Filesize
432KB

Download
memory/2408-28-0x0000000004E90000-0x0000000004EFC000-memory.dmp

Filesize
432KB

Download
memory/2408-26-0x0000000004E90000-0x0000000004EFC000-memory.dmp

Filesize
432KB

Download
memory/2408-10-0x0000000004E90000-0x0000000004EFC000-memory.dmp

Filesize
432KB

Download
memory/2408-22-0x0000000004E90000-0x0000000004EFC000-memory.dmp

Filesize
432KB

Download
memory/2408-20-0x0000000004E90000-0x0000000004EFC000-memory.dmp

Filesize
432KB

Download
memory/2408-18-0x0000000004E90000-0x0000000004EFC000-memory.dmp

Filesize
432KB

Download
memory/2408-16-0x0000000004E90000-0x0000000004EFC000-memory.dmp

Filesize
432KB

Download
memory/2408-2214-0x0000000074C10000-0x00000000752FE000-memory.dmp

Filesize
6.9MB

Download
memory/2408-1-0x0000000000FB0000-0x0000000001062000-memory.dmp

Filesize
712KB

Download
memory/2408-24-0x0000000004E90000-0x0000000004EFC000-memory.dmp

Filesize
432KB

Download
memory/2408-8-0x0000000004E90000-0x0000000004EFC000-memory.dmp

Filesize
432KB

Download
memory/2408-7-0x0000000004E90000-0x0000000004EFC000-memory.dmp

Filesize
432KB

Download
memory/2408-70-0x0000000004E90000-0x0000000004EFC000-memory.dmp

Filesize
432KB

Download
memory/2408-68-0x0000000004E90000-0x0000000004EFC000-memory.dmp

Filesize
432KB

Download
memory/2408-66-0x0000000004E90000-0x0000000004EFC000-memory.dmp

Filesize
432KB

Download
memory/2408-64-0x0000000004E90000-0x0000000004EFC000-memory.dmp

Filesize
432KB

Download
memory/2408-62-0x0000000004E90000-0x0000000004EFC000-memory.dmp

Filesize
432KB

Download
memory/2408-60-0x0000000004E90000-0x0000000004EFC000-memory.dmp

Filesize
432KB

Download
memory/2408-56-0x0000000004E90000-0x0000000004EFC000-memory.dmp

Filesize
432KB

Download
memory/2408-54-0x0000000004E90000-0x0000000004EFC000-memory.dmp

Filesize
432KB

Download
memory/2408-52-0x0000000004E90000-0x0000000004EFC000-memory.dmp

Filesize
432KB

Download
memory/2408-50-0x0000000004E90000-0x0000000004EFC000-memory.dmp

Filesize
432KB

Download
memory/2408-48-0x0000000004E90000-0x0000000004EFC000-memory.dmp

Filesize
432KB

Download
memory/2408-46-0x0000000004E90000-0x0000000004EFC000-memory.dmp

Filesize
432KB

Download
memory/2408-58-0x0000000004E90000-0x0000000004EFC000-memory.dmp

Filesize
432KB

Download
memory/2408-44-0x0000000004E90000-0x0000000004EFC000-memory.dmp

Filesize
432KB

Download
memory/2408-42-0x0000000004E90000-0x0000000004EFC000-memory.dmp

Filesize
432KB

Download
memory/2408-0-0x0000000074C1E000-0x0000000074C1F000-memory.dmp

Filesize
4KB

Download
memory/10480-2213-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/10480-2215-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download