blustealer | 3c17d6b6676bffb1a963784f757c163023961aa29364aeaa0f78d2790ed5b073

Analysis

max time kernel
144s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
21-01-2024 03:30

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General

Target

6c3daf16b35fdfdd63cf8e229056ff05.exe
Size

723KB
MD5

6c3daf16b35fdfdd63cf8e229056ff05
SHA1

2dfcd7cf46b1eaa6ff40b1528e662789b4e1c5da
SHA256

3c17d6b6676bffb1a963784f757c163023961aa29364aeaa0f78d2790ed5b073
SHA512

a954cf625cc6d911dffaabe390bfac427d1517c9e2a3206120e6bc0d855c2da796c3b5d1d98dc704bd07b9b801dd6509f7e8eae1ec09efe9c9debd0a888c5ec0
SSDEEP

12288:p5b9bhm2xC/Gfl5+cuIfmnCy0oAU2Mij/2CoIDIaNylGAE0eyvU1:z9btxCy+n4o5+juL03DAxez1

Score

10^/10

blustealer zgrat persistence rat stealer

Malware Config

Extracted

Family

blustealer

Credentials

Protocol: smtp
Host:
restd.club
Port:
587
Username:
[email protected]
Password:
@433u7a~IdTF

Signatures

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

Detect ZGRat V1 34 IoCs

resource	yara_rule
behavioral2/memory/4328-9-0x00000000065A0000-0x0000000006612000-memory.dmp	family_zgrat_v1
behavioral2/memory/4328-27-0x00000000065A0000-0x000000000660C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4328-47-0x00000000065A0000-0x000000000660C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4328-61-0x00000000065A0000-0x000000000660C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4328-73-0x00000000065A0000-0x000000000660C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4328-71-0x00000000065A0000-0x000000000660C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4328-69-0x00000000065A0000-0x000000000660C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4328-67-0x00000000065A0000-0x000000000660C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4328-65-0x00000000065A0000-0x000000000660C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4328-63-0x00000000065A0000-0x000000000660C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4328-59-0x00000000065A0000-0x000000000660C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4328-57-0x00000000065A0000-0x000000000660C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4328-55-0x00000000065A0000-0x000000000660C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4328-53-0x00000000065A0000-0x000000000660C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4328-51-0x00000000065A0000-0x000000000660C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4328-49-0x00000000065A0000-0x000000000660C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4328-45-0x00000000065A0000-0x000000000660C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4328-43-0x00000000065A0000-0x000000000660C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4328-41-0x00000000065A0000-0x000000000660C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4328-39-0x00000000065A0000-0x000000000660C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4328-37-0x00000000065A0000-0x000000000660C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4328-35-0x00000000065A0000-0x000000000660C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4328-33-0x00000000065A0000-0x000000000660C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4328-31-0x00000000065A0000-0x000000000660C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4328-29-0x00000000065A0000-0x000000000660C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4328-25-0x00000000065A0000-0x000000000660C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4328-23-0x00000000065A0000-0x000000000660C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4328-21-0x00000000065A0000-0x000000000660C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4328-19-0x00000000065A0000-0x000000000660C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4328-17-0x00000000065A0000-0x000000000660C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4328-15-0x00000000065A0000-0x000000000660C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4328-13-0x00000000065A0000-0x000000000660C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4328-11-0x00000000065A0000-0x000000000660C000-memory.dmp	family_zgrat_v1
behavioral2/memory/4328-10-0x00000000065A0000-0x000000000660C000-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\""	6c3daf16b35fdfdd63cf8e229056ff05.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4328 set thread context of 2920	4328	6c3daf16b35fdfdd63cf8e229056ff05.exe	101

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4328	6c3daf16b35fdfdd63cf8e229056ff05.exe
4328	6c3daf16b35fdfdd63cf8e229056ff05.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4328	6c3daf16b35fdfdd63cf8e229056ff05.exe
Token: SeManageVolumePrivilege	3324	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2920	6c3daf16b35fdfdd63cf8e229056ff05.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4328 wrote to memory of 2920	4328	6c3daf16b35fdfdd63cf8e229056ff05.exe	101
PID 4328 wrote to memory of 2920	4328	6c3daf16b35fdfdd63cf8e229056ff05.exe	101
PID 4328 wrote to memory of 2920	4328	6c3daf16b35fdfdd63cf8e229056ff05.exe	101
PID 4328 wrote to memory of 2920	4328	6c3daf16b35fdfdd63cf8e229056ff05.exe	101
PID 4328 wrote to memory of 2920	4328	6c3daf16b35fdfdd63cf8e229056ff05.exe	101
PID 4328 wrote to memory of 2920	4328	6c3daf16b35fdfdd63cf8e229056ff05.exe	101
PID 4328 wrote to memory of 2920	4328	6c3daf16b35fdfdd63cf8e229056ff05.exe	101
PID 4328 wrote to memory of 2920	4328	6c3daf16b35fdfdd63cf8e229056ff05.exe	101

C:\Users\Admin\AppData\Local\Temp\6c3daf16b35fdfdd63cf8e229056ff05.exe
"C:\Users\Admin\AppData\Local\Temp\6c3daf16b35fdfdd63cf8e229056ff05.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4328
- C:\Users\Admin\AppData\Local\Temp\6c3daf16b35fdfdd63cf8e229056ff05.exe
  C:\Users\Admin\AppData\Local\Temp\6c3daf16b35fdfdd63cf8e229056ff05.exe
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:2920

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe
1⤵
PID:684

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k UnistackSvcGroup
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3324

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/2920-2267-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/2920-2269-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/4328-51-0x00000000065A0000-0x000000000660C000-memory.dmp

Filesize
432KB

Download
memory/4328-3-0x0000000005140000-0x00000000051D2000-memory.dmp

Filesize
584KB

Download
memory/4328-4-0x0000000005260000-0x0000000005270000-memory.dmp

Filesize
64KB

Download
memory/4328-5-0x00000000050C0000-0x00000000050CA000-memory.dmp

Filesize
40KB

Download
memory/4328-6-0x0000000006300000-0x0000000006376000-memory.dmp

Filesize
472KB

Download
memory/4328-7-0x0000000005290000-0x0000000005338000-memory.dmp

Filesize
672KB

Download
memory/4328-8-0x00000000063E0000-0x00000000063FE000-memory.dmp

Filesize
120KB

Download
memory/4328-9-0x00000000065A0000-0x0000000006612000-memory.dmp

Filesize
456KB

Download
memory/4328-27-0x00000000065A0000-0x000000000660C000-memory.dmp

Filesize
432KB

Download
memory/4328-47-0x00000000065A0000-0x000000000660C000-memory.dmp

Filesize
432KB

Download
memory/4328-61-0x00000000065A0000-0x000000000660C000-memory.dmp

Filesize
432KB

Download
memory/4328-73-0x00000000065A0000-0x000000000660C000-memory.dmp

Filesize
432KB

Download
memory/4328-71-0x00000000065A0000-0x000000000660C000-memory.dmp

Filesize
432KB

Download
memory/4328-69-0x00000000065A0000-0x000000000660C000-memory.dmp

Filesize
432KB

Download
memory/4328-67-0x00000000065A0000-0x000000000660C000-memory.dmp

Filesize
432KB

Download
memory/4328-65-0x00000000065A0000-0x000000000660C000-memory.dmp

Filesize
432KB

Download
memory/4328-1-0x0000000074E70000-0x0000000075620000-memory.dmp

Filesize
7.7MB

Download
memory/4328-59-0x00000000065A0000-0x000000000660C000-memory.dmp

Filesize
432KB

Download
memory/4328-57-0x00000000065A0000-0x000000000660C000-memory.dmp

Filesize
432KB

Download
memory/4328-55-0x00000000065A0000-0x000000000660C000-memory.dmp

Filesize
432KB

Download
memory/4328-191-0x0000000074E70000-0x0000000075620000-memory.dmp

Filesize
7.7MB

Download
memory/4328-53-0x00000000065A0000-0x000000000660C000-memory.dmp

Filesize
432KB

Download
memory/4328-45-0x00000000065A0000-0x000000000660C000-memory.dmp

Filesize
432KB

Download
memory/4328-0-0x0000000000600000-0x00000000006B8000-memory.dmp

Filesize
736KB

Download
memory/4328-63-0x00000000065A0000-0x000000000660C000-memory.dmp

Filesize
432KB

Download
memory/4328-43-0x00000000065A0000-0x000000000660C000-memory.dmp

Filesize
432KB

Download
memory/4328-41-0x00000000065A0000-0x000000000660C000-memory.dmp

Filesize
432KB

Download
memory/4328-39-0x00000000065A0000-0x000000000660C000-memory.dmp

Filesize
432KB

Download
memory/4328-37-0x00000000065A0000-0x000000000660C000-memory.dmp

Filesize
432KB

Download
memory/4328-35-0x00000000065A0000-0x000000000660C000-memory.dmp

Filesize
432KB

Download
memory/4328-33-0x00000000065A0000-0x000000000660C000-memory.dmp

Filesize
432KB

Download
memory/4328-31-0x00000000065A0000-0x000000000660C000-memory.dmp

Filesize
432KB

Download
memory/4328-29-0x00000000065A0000-0x000000000660C000-memory.dmp

Filesize
432KB

Download
memory/4328-25-0x00000000065A0000-0x000000000660C000-memory.dmp

Filesize
432KB

Download
memory/4328-23-0x00000000065A0000-0x000000000660C000-memory.dmp

Filesize
432KB

Download
memory/4328-21-0x00000000065A0000-0x000000000660C000-memory.dmp

Filesize
432KB

Download
memory/4328-19-0x00000000065A0000-0x000000000660C000-memory.dmp

Filesize
432KB

Download
memory/4328-17-0x00000000065A0000-0x000000000660C000-memory.dmp

Filesize
432KB

Download
memory/4328-15-0x00000000065A0000-0x000000000660C000-memory.dmp

Filesize
432KB

Download
memory/4328-13-0x00000000065A0000-0x000000000660C000-memory.dmp

Filesize
432KB

Download
memory/4328-11-0x00000000065A0000-0x000000000660C000-memory.dmp

Filesize
432KB

Download
memory/4328-10-0x00000000065A0000-0x000000000660C000-memory.dmp

Filesize
432KB

Download
memory/4328-1459-0x0000000005260000-0x0000000005270000-memory.dmp

Filesize
64KB

Download
memory/4328-2266-0x0000000074E70000-0x0000000075620000-memory.dmp

Filesize
7.7MB

Download
memory/4328-49-0x00000000065A0000-0x000000000660C000-memory.dmp

Filesize
432KB

Download
memory/4328-2-0x0000000005650000-0x0000000005BF4000-memory.dmp

Filesize
5.6MB

Download