blustealer | d6390558e6f860877f95e6cf83ebc2fa028da6f469d75f73b27afe92900fbc7f

Resubmissions

27-02-2024 15:25

240227-stkjgacg5s 10

27-02-2024 15:21

240227-srp16scc78 10

Analysis

max time kernel
280s
max time network
241s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
27-02-2024 15:25

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Report Analysis Logs

General

Target

a97ccd364ed034769bd7a0e41d823ebf.exe
Size

754KB
MD5

a97ccd364ed034769bd7a0e41d823ebf
SHA1

ca4e9380a6ac5fe37d204cc055fb7f63cf764383
SHA256

d6390558e6f860877f95e6cf83ebc2fa028da6f469d75f73b27afe92900fbc7f
SHA512

b9c716b17d105a97cd161f9585e3b69a9b4b40091bb07c5e0cef79a257bb26a5076a58a649b4db6bb0a67990d980292df657b4187ff348a66748355a18699770
SSDEEP

12288:Nte7/9xRNdnCGjIz8L4frvaRHELXq24z3P8cUdKFoUU5Czd0/FU1F3:uf9nXIoL4frSELq1LP84dU5CJ0/w

Score

10^/10

blustealer zgrat persistence rat stealer

Malware Config

Extracted

Family

blustealer

Credentials

Protocol: smtp
Host:
restd.xyz
Port:
587
Username:
[email protected]
Password:
B~flgiHT==?g

Signatures

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

Detect ZGRat V1 34 IoCs

resource	yara_rule
behavioral2/memory/2704-52-0x0000000007ED0000-0x0000000007F38000-memory.dmp	family_zgrat_v1
behavioral2/memory/2704-53-0x0000000007ED0000-0x0000000007F33000-memory.dmp	family_zgrat_v1
behavioral2/memory/2704-54-0x0000000007ED0000-0x0000000007F33000-memory.dmp	family_zgrat_v1
behavioral2/memory/2704-56-0x0000000007ED0000-0x0000000007F33000-memory.dmp	family_zgrat_v1
behavioral2/memory/2704-58-0x0000000007ED0000-0x0000000007F33000-memory.dmp	family_zgrat_v1
behavioral2/memory/2704-60-0x0000000007ED0000-0x0000000007F33000-memory.dmp	family_zgrat_v1
behavioral2/memory/2704-68-0x0000000007ED0000-0x0000000007F33000-memory.dmp	family_zgrat_v1
behavioral2/memory/2704-66-0x0000000007ED0000-0x0000000007F33000-memory.dmp	family_zgrat_v1
behavioral2/memory/2704-64-0x0000000007ED0000-0x0000000007F33000-memory.dmp	family_zgrat_v1
behavioral2/memory/2704-70-0x0000000007ED0000-0x0000000007F33000-memory.dmp	family_zgrat_v1
behavioral2/memory/2704-62-0x0000000007ED0000-0x0000000007F33000-memory.dmp	family_zgrat_v1
behavioral2/memory/2704-72-0x0000000007ED0000-0x0000000007F33000-memory.dmp	family_zgrat_v1
behavioral2/memory/2704-74-0x0000000007ED0000-0x0000000007F33000-memory.dmp	family_zgrat_v1
behavioral2/memory/2704-82-0x0000000007ED0000-0x0000000007F33000-memory.dmp	family_zgrat_v1
behavioral2/memory/2704-80-0x0000000007ED0000-0x0000000007F33000-memory.dmp	family_zgrat_v1
behavioral2/memory/2704-86-0x0000000007ED0000-0x0000000007F33000-memory.dmp	family_zgrat_v1
behavioral2/memory/2704-84-0x0000000007ED0000-0x0000000007F33000-memory.dmp	family_zgrat_v1
behavioral2/memory/2704-92-0x0000000007ED0000-0x0000000007F33000-memory.dmp	family_zgrat_v1
behavioral2/memory/2704-96-0x0000000007ED0000-0x0000000007F33000-memory.dmp	family_zgrat_v1
behavioral2/memory/2704-98-0x0000000007ED0000-0x0000000007F33000-memory.dmp	family_zgrat_v1
behavioral2/memory/2704-106-0x0000000007ED0000-0x0000000007F33000-memory.dmp	family_zgrat_v1
behavioral2/memory/2704-110-0x0000000007ED0000-0x0000000007F33000-memory.dmp	family_zgrat_v1
behavioral2/memory/2704-112-0x0000000007ED0000-0x0000000007F33000-memory.dmp	family_zgrat_v1
behavioral2/memory/2704-108-0x0000000007ED0000-0x0000000007F33000-memory.dmp	family_zgrat_v1
behavioral2/memory/2704-104-0x0000000007ED0000-0x0000000007F33000-memory.dmp	family_zgrat_v1
behavioral2/memory/2704-116-0x0000000007ED0000-0x0000000007F33000-memory.dmp	family_zgrat_v1
behavioral2/memory/2704-114-0x0000000007ED0000-0x0000000007F33000-memory.dmp	family_zgrat_v1
behavioral2/memory/2704-102-0x0000000007ED0000-0x0000000007F33000-memory.dmp	family_zgrat_v1
behavioral2/memory/2704-100-0x0000000007ED0000-0x0000000007F33000-memory.dmp	family_zgrat_v1
behavioral2/memory/2704-94-0x0000000007ED0000-0x0000000007F33000-memory.dmp	family_zgrat_v1
behavioral2/memory/2704-90-0x0000000007ED0000-0x0000000007F33000-memory.dmp	family_zgrat_v1
behavioral2/memory/2704-88-0x0000000007ED0000-0x0000000007F33000-memory.dmp	family_zgrat_v1
behavioral2/memory/2704-78-0x0000000007ED0000-0x0000000007F33000-memory.dmp	family_zgrat_v1
behavioral2/memory/2704-76-0x0000000007ED0000-0x0000000007F33000-memory.dmp	family_zgrat_v1

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation	a97ccd364ed034769bd7a0e41d823ebf.exe

Deletes itself 1 IoCs

pid	Process
3220	powershell.exe

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-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\chrom = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\chrome\\chrom.exe\""	a97ccd364ed034769bd7a0e41d823ebf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2704 set thread context of 4280	2704	a97ccd364ed034769bd7a0e41d823ebf.exe	103

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
5016	powershell.exe
5016	powershell.exe
1564	powershell.exe
1564	powershell.exe
2704	a97ccd364ed034769bd7a0e41d823ebf.exe
2704	a97ccd364ed034769bd7a0e41d823ebf.exe
2704	a97ccd364ed034769bd7a0e41d823ebf.exe
2704	a97ccd364ed034769bd7a0e41d823ebf.exe
2704	a97ccd364ed034769bd7a0e41d823ebf.exe
2704	a97ccd364ed034769bd7a0e41d823ebf.exe
3220	powershell.exe
3220	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	5016	powershell.exe
Token: SeDebugPrivilege	1564	powershell.exe
Token: SeDebugPrivilege	2704	a97ccd364ed034769bd7a0e41d823ebf.exe
Token: SeDebugPrivilege	3220	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4280	a97ccd364ed034769bd7a0e41d823ebf.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2704 wrote to memory of 5016	2704	a97ccd364ed034769bd7a0e41d823ebf.exe	92
PID 2704 wrote to memory of 5016	2704	a97ccd364ed034769bd7a0e41d823ebf.exe	92
PID 2704 wrote to memory of 5016	2704	a97ccd364ed034769bd7a0e41d823ebf.exe	92
PID 2704 wrote to memory of 1564	2704	a97ccd364ed034769bd7a0e41d823ebf.exe	98
PID 2704 wrote to memory of 1564	2704	a97ccd364ed034769bd7a0e41d823ebf.exe	98
PID 2704 wrote to memory of 1564	2704	a97ccd364ed034769bd7a0e41d823ebf.exe	98
PID 2704 wrote to memory of 3220	2704	a97ccd364ed034769bd7a0e41d823ebf.exe	100
PID 2704 wrote to memory of 3220	2704	a97ccd364ed034769bd7a0e41d823ebf.exe	100
PID 2704 wrote to memory of 3220	2704	a97ccd364ed034769bd7a0e41d823ebf.exe	100
PID 2704 wrote to memory of 4980	2704	a97ccd364ed034769bd7a0e41d823ebf.exe	102
PID 2704 wrote to memory of 4980	2704	a97ccd364ed034769bd7a0e41d823ebf.exe	102
PID 2704 wrote to memory of 4980	2704	a97ccd364ed034769bd7a0e41d823ebf.exe	102
PID 2704 wrote to memory of 4280	2704	a97ccd364ed034769bd7a0e41d823ebf.exe	103
PID 2704 wrote to memory of 4280	2704	a97ccd364ed034769bd7a0e41d823ebf.exe	103
PID 2704 wrote to memory of 4280	2704	a97ccd364ed034769bd7a0e41d823ebf.exe	103
PID 2704 wrote to memory of 4280	2704	a97ccd364ed034769bd7a0e41d823ebf.exe	103
PID 2704 wrote to memory of 4280	2704	a97ccd364ed034769bd7a0e41d823ebf.exe	103
PID 2704 wrote to memory of 4280	2704	a97ccd364ed034769bd7a0e41d823ebf.exe	103
PID 2704 wrote to memory of 4280	2704	a97ccd364ed034769bd7a0e41d823ebf.exe	103
PID 2704 wrote to memory of 4280	2704	a97ccd364ed034769bd7a0e41d823ebf.exe	103

C:\Users\Admin\AppData\Local\Temp\a97ccd364ed034769bd7a0e41d823ebf.exe
"C:\Users\Admin\AppData\Local\Temp\a97ccd364ed034769bd7a0e41d823ebf.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2704
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Write-Output Hello World
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5016
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Write-Output Hello World
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1564
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Start-Sleep -s 5; Remove-Item -Path "C:\Users\Admin\AppData\Local\Temp\a97ccd364ed034769bd7a0e41d823ebf.exe" -Force
  2⤵
  - Deletes itself
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3220
- C:\Users\Admin\AppData\Local\Temp\a97ccd364ed034769bd7a0e41d823ebf.exe
  C:\Users\Admin\AppData\Local\Temp\a97ccd364ed034769bd7a0e41d823ebf.exe
  2⤵
  PID:4980
- C:\Users\Admin\AppData\Local\Temp\a97ccd364ed034769bd7a0e41d823ebf.exe
  C:\Users\Admin\AppData\Local\Temp\a97ccd364ed034769bd7a0e41d823ebf.exe
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:4280

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
1KB

MD5
4280e36a29fa31c01e4d8b2ba726a0d8

SHA1
c485c2c9ce0a99747b18d899b71dfa9a64dabe32

SHA256
e2486a1bdcba80dad6dd6210d7374bd70ae196a523c06ceda71370fd3ea78359

SHA512
494fe5f0ade03669e5830bed93c964d69b86629440148d7b0881cf53203fd89443ebff9b4d1ee9d96244f62af6edede622d9eacba37f80f389a0d522e4ad4ea4

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
16KB

MD5
f26fae2dc043acaa7ba3edce3631ba41

SHA1
44af9b0543197df5db0f1cb3b91082a67d969b27

SHA256
94503bc54bd5d4072f2b19e40d85419915cf64904a22911381281ce12398ae5b

SHA512
722a13bfa7defcd99c981d60f47b610ccb2c92685ecb83cd0bc098e111e4dec4f507d869df5dc252d78e86e474378ccadbab9a174ea09b1acad33d011ac1a572

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
16KB

MD5
9e3f718ae5f3e577f2efa19d36c1fd50

SHA1
ba7c1351ef5cb5618a066252f175e04613ee85ba

SHA256
26f516c055153f8bdd1ea0d611f44c0877a55ba0bd05f9156f3ffab0d358cb28

SHA512
2494d2bd3d1dd71294212432c88b915640f80fe0144fd81e690b524db5f1b192a0d60c4f78bd7a24c575626b4b2d845c3335bc7dbb39e8011639a8064d25ccd9

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3afnt03g.tu2.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1564-49-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/1564-37-0x0000000006120000-0x0000000006474000-memory.dmp

Filesize
3.3MB

Download
memory/1564-36-0x0000000005430000-0x0000000005440000-memory.dmp

Filesize
64KB

Download
memory/1564-35-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/2704-114-0x0000000007ED0000-0x0000000007F33000-memory.dmp

Filesize
396KB

Download
memory/2704-1-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/2704-9-0x0000000005260000-0x0000000005270000-memory.dmp

Filesize
64KB

Download
memory/2704-0-0x0000000000830000-0x00000000008F2000-memory.dmp

Filesize
776KB

Download
memory/2704-2043-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/2704-76-0x0000000007ED0000-0x0000000007F33000-memory.dmp

Filesize
396KB

Download
memory/2704-78-0x0000000007ED0000-0x0000000007F33000-memory.dmp

Filesize
396KB

Download
memory/2704-88-0x0000000007ED0000-0x0000000007F33000-memory.dmp

Filesize
396KB

Download
memory/2704-90-0x0000000007ED0000-0x0000000007F33000-memory.dmp

Filesize
396KB

Download
memory/2704-94-0x0000000007ED0000-0x0000000007F33000-memory.dmp

Filesize
396KB

Download
memory/2704-100-0x0000000007ED0000-0x0000000007F33000-memory.dmp

Filesize
396KB

Download
memory/2704-102-0x0000000007ED0000-0x0000000007F33000-memory.dmp

Filesize
396KB

Download
memory/2704-116-0x0000000007ED0000-0x0000000007F33000-memory.dmp

Filesize
396KB

Download
memory/2704-62-0x0000000007ED0000-0x0000000007F33000-memory.dmp

Filesize
396KB

Download
memory/2704-32-0x0000000005260000-0x0000000005270000-memory.dmp

Filesize
64KB

Download
memory/2704-33-0x0000000005260000-0x0000000005270000-memory.dmp

Filesize
64KB

Download
memory/2704-104-0x0000000007ED0000-0x0000000007F33000-memory.dmp

Filesize
396KB

Download
memory/2704-108-0x0000000007ED0000-0x0000000007F33000-memory.dmp

Filesize
396KB

Download
memory/2704-5-0x00000000054B0000-0x00000000054BA000-memory.dmp

Filesize
40KB

Download
memory/2704-4-0x0000000005260000-0x0000000005270000-memory.dmp

Filesize
64KB

Download
memory/2704-3-0x0000000005320000-0x00000000053B2000-memory.dmp

Filesize
584KB

Download
memory/2704-2-0x00000000058D0000-0x0000000005E74000-memory.dmp

Filesize
5.6MB

Download
memory/2704-51-0x0000000007050000-0x00000000070F2000-memory.dmp

Filesize
648KB

Download
memory/2704-52-0x0000000007ED0000-0x0000000007F38000-memory.dmp

Filesize
416KB

Download
memory/2704-72-0x0000000007ED0000-0x0000000007F33000-memory.dmp

Filesize
396KB

Download
memory/2704-54-0x0000000007ED0000-0x0000000007F33000-memory.dmp

Filesize
396KB

Download
memory/2704-56-0x0000000007ED0000-0x0000000007F33000-memory.dmp

Filesize
396KB

Download
memory/2704-58-0x0000000007ED0000-0x0000000007F33000-memory.dmp

Filesize
396KB

Download
memory/2704-60-0x0000000007ED0000-0x0000000007F33000-memory.dmp

Filesize
396KB

Download
memory/2704-68-0x0000000007ED0000-0x0000000007F33000-memory.dmp

Filesize
396KB

Download
memory/2704-66-0x0000000007ED0000-0x0000000007F33000-memory.dmp

Filesize
396KB

Download
memory/2704-64-0x0000000007ED0000-0x0000000007F33000-memory.dmp

Filesize
396KB

Download
memory/2704-92-0x0000000007ED0000-0x0000000007F33000-memory.dmp

Filesize
396KB

Download
memory/2704-31-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/2704-53-0x0000000007ED0000-0x0000000007F33000-memory.dmp

Filesize
396KB

Download
memory/2704-74-0x0000000007ED0000-0x0000000007F33000-memory.dmp

Filesize
396KB

Download
memory/2704-82-0x0000000007ED0000-0x0000000007F33000-memory.dmp

Filesize
396KB

Download
memory/2704-80-0x0000000007ED0000-0x0000000007F33000-memory.dmp

Filesize
396KB

Download
memory/2704-86-0x0000000007ED0000-0x0000000007F33000-memory.dmp

Filesize
396KB

Download
memory/2704-84-0x0000000007ED0000-0x0000000007F33000-memory.dmp

Filesize
396KB

Download
memory/2704-70-0x0000000007ED0000-0x0000000007F33000-memory.dmp

Filesize
396KB

Download
memory/2704-96-0x0000000007ED0000-0x0000000007F33000-memory.dmp

Filesize
396KB

Download
memory/2704-98-0x0000000007ED0000-0x0000000007F33000-memory.dmp

Filesize
396KB

Download
memory/2704-106-0x0000000007ED0000-0x0000000007F33000-memory.dmp

Filesize
396KB

Download
memory/2704-110-0x0000000007ED0000-0x0000000007F33000-memory.dmp

Filesize
396KB

Download
memory/2704-112-0x0000000007ED0000-0x0000000007F33000-memory.dmp

Filesize
396KB

Download
memory/3220-2054-0x0000000006360000-0x00000000066B4000-memory.dmp

Filesize
3.3MB

Download
memory/3220-2040-0x0000000005220000-0x0000000005230000-memory.dmp

Filesize
64KB

Download
memory/3220-2062-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/3220-2060-0x0000000006E30000-0x0000000006E52000-memory.dmp

Filesize
136KB

Download
memory/3220-2059-0x0000000007BB0000-0x0000000007C46000-memory.dmp

Filesize
600KB

Download
memory/3220-2057-0x0000000006EC0000-0x0000000006F0C000-memory.dmp

Filesize
304KB

Download
memory/3220-2038-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/4280-2058-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/4280-2042-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/5016-30-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/5016-8-0x00000000048C0000-0x00000000048D0000-memory.dmp

Filesize
64KB

Download
memory/5016-13-0x00000000055A0000-0x0000000005606000-memory.dmp

Filesize
408KB

Download
memory/5016-7-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/5016-24-0x0000000005B80000-0x0000000005B9E000-memory.dmp

Filesize
120KB

Download
memory/5016-12-0x0000000004E70000-0x0000000004ED6000-memory.dmp

Filesize
408KB

Download
memory/5016-6-0x0000000000E20000-0x0000000000E56000-memory.dmp

Filesize
216KB

Download
memory/5016-11-0x0000000004CD0000-0x0000000004CF2000-memory.dmp

Filesize
136KB

Download
memory/5016-25-0x0000000005BE0000-0x0000000005C2C000-memory.dmp

Filesize
304KB

Download
memory/5016-26-0x00000000074B0000-0x0000000007B2A000-memory.dmp

Filesize
6.5MB

Download
memory/5016-27-0x0000000006080000-0x000000000609A000-memory.dmp

Filesize
104KB

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memory/5016-10-0x0000000004F00000-0x0000000005528000-memory.dmp

Filesize
6.2MB

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memory/5016-23-0x00000000057B0000-0x0000000005B04000-memory.dmp

Filesize
3.3MB

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