blustealer | a636ac86f3f8c1341dd201eedfd702495aa0e313322d5c1318a5d1b623f0bb9d

Analysis

max time kernel
130s
max time network
122s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
14-01-2024 13:19

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General

Target

5b55d6c34fb68f8b4bc9e361ee038641.exe
Size

684KB
MD5

5b55d6c34fb68f8b4bc9e361ee038641
SHA1

89e0d1840e1d4e6a708e0fabf376609863377a9f
SHA256

a636ac86f3f8c1341dd201eedfd702495aa0e313322d5c1318a5d1b623f0bb9d
SHA512

c45fb18cf1cf3aaea3ccc4425e12841c7c90cb610894f85e19c5fe831bfb8e93aab92572688a07e0677fd829023e5a963ff894045eef98941b54da56befffffc
SSDEEP

12288:0XCYJDX9rBoUX58/sSHZ4+3hGx5DkYjSs2:JYJDFBFX5CsMQ5dSs2

Score

10^/10

blustealer zgrat persistence rat 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

Detect ZGRat V1 34 IoCs

resource	yara_rule
behavioral2/memory/2340-7-0x0000000006880000-0x00000000068F2000-memory.dmp	family_zgrat_v1
behavioral2/memory/2340-8-0x0000000006880000-0x00000000068EC000-memory.dmp	family_zgrat_v1
behavioral2/memory/2340-9-0x0000000006880000-0x00000000068EC000-memory.dmp	family_zgrat_v1
behavioral2/memory/2340-11-0x0000000006880000-0x00000000068EC000-memory.dmp	family_zgrat_v1
behavioral2/memory/2340-13-0x0000000006880000-0x00000000068EC000-memory.dmp	family_zgrat_v1
behavioral2/memory/2340-19-0x0000000006880000-0x00000000068EC000-memory.dmp	family_zgrat_v1
behavioral2/memory/2340-17-0x0000000006880000-0x00000000068EC000-memory.dmp	family_zgrat_v1
behavioral2/memory/2340-15-0x0000000006880000-0x00000000068EC000-memory.dmp	family_zgrat_v1
behavioral2/memory/2340-27-0x0000000006880000-0x00000000068EC000-memory.dmp	family_zgrat_v1
behavioral2/memory/2340-31-0x0000000006880000-0x00000000068EC000-memory.dmp	family_zgrat_v1
behavioral2/memory/2340-41-0x0000000006880000-0x00000000068EC000-memory.dmp	family_zgrat_v1
behavioral2/memory/2340-57-0x0000000006880000-0x00000000068EC000-memory.dmp	family_zgrat_v1
behavioral2/memory/2340-55-0x0000000006880000-0x00000000068EC000-memory.dmp	family_zgrat_v1
behavioral2/memory/2340-61-0x0000000006880000-0x00000000068EC000-memory.dmp	family_zgrat_v1
behavioral2/memory/2340-59-0x0000000006880000-0x00000000068EC000-memory.dmp	family_zgrat_v1
behavioral2/memory/2340-69-0x0000000006880000-0x00000000068EC000-memory.dmp	family_zgrat_v1
behavioral2/memory/2340-71-0x0000000006880000-0x00000000068EC000-memory.dmp	family_zgrat_v1
behavioral2/memory/2340-67-0x0000000006880000-0x00000000068EC000-memory.dmp	family_zgrat_v1
behavioral2/memory/2340-65-0x0000000006880000-0x00000000068EC000-memory.dmp	family_zgrat_v1
behavioral2/memory/2340-63-0x0000000006880000-0x00000000068EC000-memory.dmp	family_zgrat_v1
behavioral2/memory/2340-53-0x0000000006880000-0x00000000068EC000-memory.dmp	family_zgrat_v1
behavioral2/memory/2340-51-0x0000000006880000-0x00000000068EC000-memory.dmp	family_zgrat_v1
behavioral2/memory/2340-49-0x0000000006880000-0x00000000068EC000-memory.dmp	family_zgrat_v1
behavioral2/memory/2340-47-0x0000000006880000-0x00000000068EC000-memory.dmp	family_zgrat_v1
behavioral2/memory/2340-45-0x0000000006880000-0x00000000068EC000-memory.dmp	family_zgrat_v1
behavioral2/memory/2340-43-0x0000000006880000-0x00000000068EC000-memory.dmp	family_zgrat_v1
behavioral2/memory/2340-39-0x0000000006880000-0x00000000068EC000-memory.dmp	family_zgrat_v1
behavioral2/memory/2340-37-0x0000000006880000-0x00000000068EC000-memory.dmp	family_zgrat_v1
behavioral2/memory/2340-35-0x0000000006880000-0x00000000068EC000-memory.dmp	family_zgrat_v1
behavioral2/memory/2340-33-0x0000000006880000-0x00000000068EC000-memory.dmp	family_zgrat_v1
behavioral2/memory/2340-29-0x0000000006880000-0x00000000068EC000-memory.dmp	family_zgrat_v1
behavioral2/memory/2340-25-0x0000000006880000-0x00000000068EC000-memory.dmp	family_zgrat_v1
behavioral2/memory/2340-23-0x0000000006880000-0x00000000068EC000-memory.dmp	family_zgrat_v1
behavioral2/memory/2340-21-0x0000000006880000-0x00000000068EC000-memory.dmp	family_zgrat_v1

ZGRat
ZGRat is remote access trojan written in C#.
rat zgrat

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-1-5-21-1168293393-3419776239-306423207-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\paint = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\paint\\paint.exe\""	5b55d6c34fb68f8b4bc9e361ee038641.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2340 set thread context of 4380	2340	5b55d6c34fb68f8b4bc9e361ee038641.exe	104

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2340	5b55d6c34fb68f8b4bc9e361ee038641.exe
2340	5b55d6c34fb68f8b4bc9e361ee038641.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2340	5b55d6c34fb68f8b4bc9e361ee038641.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4380	5b55d6c34fb68f8b4bc9e361ee038641.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2340 wrote to memory of 4380	2340	5b55d6c34fb68f8b4bc9e361ee038641.exe	104
PID 2340 wrote to memory of 4380	2340	5b55d6c34fb68f8b4bc9e361ee038641.exe	104
PID 2340 wrote to memory of 4380	2340	5b55d6c34fb68f8b4bc9e361ee038641.exe	104
PID 2340 wrote to memory of 4380	2340	5b55d6c34fb68f8b4bc9e361ee038641.exe	104
PID 2340 wrote to memory of 4380	2340	5b55d6c34fb68f8b4bc9e361ee038641.exe	104
PID 2340 wrote to memory of 4380	2340	5b55d6c34fb68f8b4bc9e361ee038641.exe	104
PID 2340 wrote to memory of 4380	2340	5b55d6c34fb68f8b4bc9e361ee038641.exe	104
PID 2340 wrote to memory of 4380	2340	5b55d6c34fb68f8b4bc9e361ee038641.exe	104

C:\Users\Admin\AppData\Local\Temp\5b55d6c34fb68f8b4bc9e361ee038641.exe
"C:\Users\Admin\AppData\Local\Temp\5b55d6c34fb68f8b4bc9e361ee038641.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2340
- C:\Users\Admin\AppData\Local\Temp\5b55d6c34fb68f8b4bc9e361ee038641.exe
  C:\Users\Admin\AppData\Local\Temp\5b55d6c34fb68f8b4bc9e361ee038641.exe
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:4380

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2340-69-0x0000000006880000-0x00000000068EC000-memory.dmp

Filesize
432KB

Download
memory/2340-2205-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/2340-2-0x0000000005860000-0x0000000005E04000-memory.dmp

Filesize
5.6MB

Download
memory/2340-0-0x0000000000760000-0x0000000000812000-memory.dmp

Filesize
712KB

Download
memory/2340-4-0x0000000005480000-0x0000000005490000-memory.dmp

Filesize
64KB

Download
memory/2340-5-0x00000000053B0000-0x00000000053BA000-memory.dmp

Filesize
40KB

Download
memory/2340-6-0x0000000006410000-0x00000000064B8000-memory.dmp

Filesize
672KB

Download
memory/2340-7-0x0000000006880000-0x00000000068F2000-memory.dmp

Filesize
456KB

Download
memory/2340-8-0x0000000006880000-0x00000000068EC000-memory.dmp

Filesize
432KB

Download
memory/2340-9-0x0000000006880000-0x00000000068EC000-memory.dmp

Filesize
432KB

Download
memory/2340-11-0x0000000006880000-0x00000000068EC000-memory.dmp

Filesize
432KB

Download
memory/2340-13-0x0000000006880000-0x00000000068EC000-memory.dmp

Filesize
432KB

Download
memory/2340-19-0x0000000006880000-0x00000000068EC000-memory.dmp

Filesize
432KB

Download
memory/2340-17-0x0000000006880000-0x00000000068EC000-memory.dmp

Filesize
432KB

Download
memory/2340-15-0x0000000006880000-0x00000000068EC000-memory.dmp

Filesize
432KB

Download
memory/2340-27-0x0000000006880000-0x00000000068EC000-memory.dmp

Filesize
432KB

Download
memory/2340-31-0x0000000006880000-0x00000000068EC000-memory.dmp

Filesize
432KB

Download
memory/2340-67-0x0000000006880000-0x00000000068EC000-memory.dmp

Filesize
432KB

Download
memory/2340-57-0x0000000006880000-0x00000000068EC000-memory.dmp

Filesize
432KB

Download
memory/2340-55-0x0000000006880000-0x00000000068EC000-memory.dmp

Filesize
432KB

Download
memory/2340-61-0x0000000006880000-0x00000000068EC000-memory.dmp

Filesize
432KB

Download
memory/2340-59-0x0000000006880000-0x00000000068EC000-memory.dmp

Filesize
432KB

Download
memory/2340-3-0x0000000005200000-0x0000000005292000-memory.dmp

Filesize
584KB

Download
memory/2340-1-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/2340-41-0x0000000006880000-0x00000000068EC000-memory.dmp

Filesize
432KB

Download
memory/2340-65-0x0000000006880000-0x00000000068EC000-memory.dmp

Filesize
432KB

Download
memory/2340-63-0x0000000006880000-0x00000000068EC000-memory.dmp

Filesize
432KB

Download
memory/2340-53-0x0000000006880000-0x00000000068EC000-memory.dmp

Filesize
432KB

Download
memory/2340-51-0x0000000006880000-0x00000000068EC000-memory.dmp

Filesize
432KB

Download
memory/2340-49-0x0000000006880000-0x00000000068EC000-memory.dmp

Filesize
432KB

Download
memory/2340-47-0x0000000006880000-0x00000000068EC000-memory.dmp

Filesize
432KB

Download
memory/2340-45-0x0000000006880000-0x00000000068EC000-memory.dmp

Filesize
432KB

Download
memory/2340-43-0x0000000006880000-0x00000000068EC000-memory.dmp

Filesize
432KB

Download
memory/2340-39-0x0000000006880000-0x00000000068EC000-memory.dmp

Filesize
432KB

Download
memory/2340-37-0x0000000006880000-0x00000000068EC000-memory.dmp

Filesize
432KB

Download
memory/2340-35-0x0000000006880000-0x00000000068EC000-memory.dmp

Filesize
432KB

Download
memory/2340-33-0x0000000006880000-0x00000000068EC000-memory.dmp

Filesize
432KB

Download
memory/2340-29-0x0000000006880000-0x00000000068EC000-memory.dmp

Filesize
432KB

Download
memory/2340-316-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/2340-25-0x0000000006880000-0x00000000068EC000-memory.dmp

Filesize
432KB

Download
memory/2340-23-0x0000000006880000-0x00000000068EC000-memory.dmp

Filesize
432KB

Download
memory/2340-21-0x0000000006880000-0x00000000068EC000-memory.dmp

Filesize
432KB

Download
memory/2340-71-0x0000000006880000-0x00000000068EC000-memory.dmp

Filesize
432KB

Download
memory/4380-2206-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/4380-2208-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download