blustealer | 55b486f7e3eb481c395c5bc295d5d4cb85d0318e3185cbad9eeac17b1fd7abcf

General

Target

13ec1600c34aef86c927c06c2930cc91c57af490d206783263c82a5d3877bd44.exe
Size

1.3MB
MD5

47e740a60ad3725bf3e8aa0f1ca06602
SHA1

14cdc8c2df7e674eff67104603841113d83b4927
SHA256

13ec1600c34aef86c927c06c2930cc91c57af490d206783263c82a5d3877bd44
SHA512

3cef948a617aef62b2483b34649f631c1f0f9a59308fd2c3a32d049843fa9eb634f46d955a7e1c1ca20c03bad6df8cf59327cb8b23ed095870e217a9940b6214
SSDEEP

12288:/06hthweHJDyHYKeu7oFcN6wLEOcU8od5bkwIf4PghrV1U9REyaXO1fIM0WQCjTr:38oOLEOJ805UP37yao0DCb

Score

10^/10

blustealer collection stealer

Malware Config

Extracted

Family

blustealer

Credentials

Protocol: smtp
Host:
mail.dphe.gov.bd
Port:
587
Username:
[email protected]
Password:
@DphE20#

Signatures

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

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-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation	13ec1600c34aef86c927c06c2930cc91c57af490d206783263c82a5d3877bd44.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2868 set thread context of 3972	2868	13ec1600c34aef86c927c06c2930cc91c57af490d206783263c82a5d3877bd44.exe	97
PID 3972 set thread context of 2980	3972	MSBuild.exe	98

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
2712	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2868	13ec1600c34aef86c927c06c2930cc91c57af490d206783263c82a5d3877bd44.exe
2868	13ec1600c34aef86c927c06c2930cc91c57af490d206783263c82a5d3877bd44.exe
2868	13ec1600c34aef86c927c06c2930cc91c57af490d206783263c82a5d3877bd44.exe
2868	13ec1600c34aef86c927c06c2930cc91c57af490d206783263c82a5d3877bd44.exe
4828	powershell.exe
4828	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2868	13ec1600c34aef86c927c06c2930cc91c57af490d206783263c82a5d3877bd44.exe
Token: SeDebugPrivilege	4828	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3972	MSBuild.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 2868 wrote to memory of 4828	2868	13ec1600c34aef86c927c06c2930cc91c57af490d206783263c82a5d3877bd44.exe	92
PID 2868 wrote to memory of 4828	2868	13ec1600c34aef86c927c06c2930cc91c57af490d206783263c82a5d3877bd44.exe	92
PID 2868 wrote to memory of 4828	2868	13ec1600c34aef86c927c06c2930cc91c57af490d206783263c82a5d3877bd44.exe	92
PID 2868 wrote to memory of 2712	2868	13ec1600c34aef86c927c06c2930cc91c57af490d206783263c82a5d3877bd44.exe	94
PID 2868 wrote to memory of 2712	2868	13ec1600c34aef86c927c06c2930cc91c57af490d206783263c82a5d3877bd44.exe	94
PID 2868 wrote to memory of 2712	2868	13ec1600c34aef86c927c06c2930cc91c57af490d206783263c82a5d3877bd44.exe	94
PID 2868 wrote to memory of 2492	2868	13ec1600c34aef86c927c06c2930cc91c57af490d206783263c82a5d3877bd44.exe	96
PID 2868 wrote to memory of 2492	2868	13ec1600c34aef86c927c06c2930cc91c57af490d206783263c82a5d3877bd44.exe	96
PID 2868 wrote to memory of 2492	2868	13ec1600c34aef86c927c06c2930cc91c57af490d206783263c82a5d3877bd44.exe	96
PID 2868 wrote to memory of 3972	2868	13ec1600c34aef86c927c06c2930cc91c57af490d206783263c82a5d3877bd44.exe	97
PID 2868 wrote to memory of 3972	2868	13ec1600c34aef86c927c06c2930cc91c57af490d206783263c82a5d3877bd44.exe	97
PID 2868 wrote to memory of 3972	2868	13ec1600c34aef86c927c06c2930cc91c57af490d206783263c82a5d3877bd44.exe	97
PID 2868 wrote to memory of 3972	2868	13ec1600c34aef86c927c06c2930cc91c57af490d206783263c82a5d3877bd44.exe	97
PID 2868 wrote to memory of 3972	2868	13ec1600c34aef86c927c06c2930cc91c57af490d206783263c82a5d3877bd44.exe	97
PID 2868 wrote to memory of 3972	2868	13ec1600c34aef86c927c06c2930cc91c57af490d206783263c82a5d3877bd44.exe	97
PID 2868 wrote to memory of 3972	2868	13ec1600c34aef86c927c06c2930cc91c57af490d206783263c82a5d3877bd44.exe	97
PID 2868 wrote to memory of 3972	2868	13ec1600c34aef86c927c06c2930cc91c57af490d206783263c82a5d3877bd44.exe	97
PID 3972 wrote to memory of 2980	3972	MSBuild.exe	98
PID 3972 wrote to memory of 2980	3972	MSBuild.exe	98
PID 3972 wrote to memory of 2980	3972	MSBuild.exe	98
PID 3972 wrote to memory of 2980	3972	MSBuild.exe	98
PID 3972 wrote to memory of 2980	3972	MSBuild.exe	98

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\13ec1600c34aef86c927c06c2930cc91c57af490d206783263c82a5d3877bd44.exe
"C:\Users\Admin\AppData\Local\Temp\13ec1600c34aef86c927c06c2930cc91c57af490d206783263c82a5d3877bd44.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2868
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\YLaBcpsPbHzc.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4828
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YLaBcpsPbHzc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6D7F.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2712
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  PID:2492
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3972
- - 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
    - outlook_office_path
    - outlook_win_path
    PID:2980

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_s424afzo.4v0.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp6D7F.tmp

Filesize
1KB

MD5
2af129164bf6af0084370c76739c4bec

SHA1
4f0af6fd3c297ec79204cecd55fa1b46daec6a90

SHA256
0d7b66966a8a2e8f2e085246599a276caa3ebb72ca33af71f960a669d1486d0b

SHA512
71119ddb92966a0db091428b73ef7c0b8a2f2f0fa12a9aee377323ef2e568d34f302d87c463b0c516e343e2082695d691174bafffafec5ecc7d0b3992d4f2628

Download Submit
memory/2868-136-0x0000000005B10000-0x0000000005B1A000-memory.dmp

Filesize
40KB

Download
memory/2868-137-0x00000000058F0000-0x0000000005900000-memory.dmp

Filesize
64KB

Download
memory/2868-138-0x00000000058F0000-0x0000000005900000-memory.dmp

Filesize
64KB

Download
memory/2868-139-0x000000000C340000-0x000000000C3DC000-memory.dmp

Filesize
624KB

Download
memory/2868-134-0x0000000005E70000-0x0000000006414000-memory.dmp

Filesize
5.6MB

Download
memory/2868-133-0x0000000000E60000-0x0000000000FA6000-memory.dmp

Filesize
1.3MB

Download
memory/2868-135-0x0000000005960000-0x00000000059F2000-memory.dmp

Filesize
584KB

Download
memory/2980-192-0x0000000000D00000-0x0000000000D66000-memory.dmp

Filesize
408KB

Download
memory/3972-152-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/3972-167-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/3972-149-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/4828-188-0x0000000007AC0000-0x0000000007ADA000-memory.dmp

Filesize
104KB

Download
memory/4828-180-0x0000000006A30000-0x0000000006A4E000-memory.dmp

Filesize
120KB

Download
memory/4828-146-0x0000000002D40000-0x0000000002D50000-memory.dmp

Filesize
64KB

Download
memory/4828-148-0x0000000002D40000-0x0000000002D50000-memory.dmp

Filesize
64KB

Download
memory/4828-144-0x0000000002B40000-0x0000000002B76000-memory.dmp

Filesize
216KB

Download
memory/4828-147-0x0000000005720000-0x0000000005D48000-memory.dmp

Filesize
6.2MB

Download
memory/4828-168-0x0000000006470000-0x000000000648E000-memory.dmp

Filesize
120KB

Download
memory/4828-169-0x0000000006A70000-0x0000000006AA2000-memory.dmp

Filesize
200KB

Download
memory/4828-170-0x00000000708E0000-0x000000007092C000-memory.dmp

Filesize
304KB

Download
memory/4828-154-0x00000000054B0000-0x00000000054D2000-memory.dmp

Filesize
136KB

Download
memory/4828-181-0x0000000002D40000-0x0000000002D50000-memory.dmp

Filesize
64KB

Download
memory/4828-182-0x000000007F7F0000-0x000000007F800000-memory.dmp

Filesize
64KB

Download
memory/4828-183-0x0000000007DC0000-0x000000000843A000-memory.dmp

Filesize
6.5MB

Download
memory/4828-184-0x0000000007780000-0x000000000779A000-memory.dmp

Filesize
104KB

Download
memory/4828-185-0x00000000077F0000-0x00000000077FA000-memory.dmp

Filesize
40KB

Download
memory/4828-186-0x0000000007A00000-0x0000000007A96000-memory.dmp

Filesize
600KB

Download
memory/4828-187-0x00000000079B0000-0x00000000079BE000-memory.dmp

Filesize
56KB

Download
memory/4828-157-0x0000000005EC0000-0x0000000005F26000-memory.dmp

Filesize
408KB

Download
memory/4828-189-0x0000000007AA0000-0x0000000007AA8000-memory.dmp

Filesize
32KB

Download
memory/4828-155-0x0000000005650000-0x00000000056B6000-memory.dmp

Filesize
408KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads