blustealer | c31f61b96549e6c51467d0b417d698659e956ced1513dfd01b9913d543f2f58b

Resubmissions

30-05-2023 07:57

230530-jth6zagf6w 10

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
30-05-2023 07:57

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General

Target

jagymequipment_Order_list_30052023.exe
Size

992KB
MD5

84bcb19b24fb3cf44188d8ea5e8a080f
SHA1

f6a1b91c039a3ce6cff9bf160725a4d2dae6df81
SHA256

b5145ccf5ded090001d3a5368ad32b5b4853f1b2153e55beae9ff0ba543e449e
SHA512

03658af693ef7d3754277e506e0aaf71402ab675ea4618adee8dcd34c50e1e49e5349dd6e92d6dd02f5abb72feb76d97aace506a6fc16f9ce01f1ad1f8902e32
SSDEEP

24576:8qPLaVUH999QYDtn9pvEni933gMciIX0GJ/llyoWD/H:fBH9QYDvpvwXMcpX0GJ/llQ

Score

10^/10

blustealer collection stealer

Malware Config

Extracted

Family

blustealer

https://api.telegram.org/bot5797428905:AAGaRRXGZN1d9GGFd3sE5x4uSpCGF0PU4m4/sendMessage?chat_id=1251788325

Signatures

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\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 432 set thread context of 1752	432	jagymequipment_Order_list_30052023.exe	83
PID 1752 set thread context of 3132	1752	jagymequipment_Order_list_30052023.exe	84

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

System Information Discovery
T1082

Script User-Agent 1 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	28	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
432	jagymequipment_Order_list_30052023.exe
432	jagymequipment_Order_list_30052023.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	432	jagymequipment_Order_list_30052023.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1752	jagymequipment_Order_list_30052023.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 432 wrote to memory of 1752	432	jagymequipment_Order_list_30052023.exe	83
PID 432 wrote to memory of 1752	432	jagymequipment_Order_list_30052023.exe	83
PID 432 wrote to memory of 1752	432	jagymequipment_Order_list_30052023.exe	83
PID 432 wrote to memory of 1752	432	jagymequipment_Order_list_30052023.exe	83
PID 432 wrote to memory of 1752	432	jagymequipment_Order_list_30052023.exe	83
PID 432 wrote to memory of 1752	432	jagymequipment_Order_list_30052023.exe	83
PID 432 wrote to memory of 1752	432	jagymequipment_Order_list_30052023.exe	83
PID 432 wrote to memory of 1752	432	jagymequipment_Order_list_30052023.exe	83
PID 1752 wrote to memory of 3132	1752	jagymequipment_Order_list_30052023.exe	84
PID 1752 wrote to memory of 3132	1752	jagymequipment_Order_list_30052023.exe	84
PID 1752 wrote to memory of 3132	1752	jagymequipment_Order_list_30052023.exe	84
PID 1752 wrote to memory of 3132	1752	jagymequipment_Order_list_30052023.exe	84
PID 1752 wrote to memory of 3132	1752	jagymequipment_Order_list_30052023.exe	84

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\jagymequipment_Order_list_30052023.exe
"C:\Users\Admin\AppData\Local\Temp\jagymequipment_Order_list_30052023.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:432
- C:\Users\Admin\AppData\Local\Temp\jagymequipment_Order_list_30052023.exe
  "C:\Users\Admin\AppData\Local\Temp\jagymequipment_Order_list_30052023.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1752
- - 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:3132

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/432-133-0x0000000000590000-0x000000000068A000-memory.dmp

Filesize
1000KB

Download
memory/432-134-0x0000000005560000-0x0000000005B04000-memory.dmp

Filesize
5.6MB

Download
memory/432-135-0x0000000005050000-0x00000000050E2000-memory.dmp

Filesize
584KB

Download
memory/432-136-0x00000000050F0000-0x00000000050FA000-memory.dmp

Filesize
40KB

Download
memory/432-137-0x0000000005180000-0x0000000005190000-memory.dmp

Filesize
64KB

Download
memory/432-138-0x0000000005180000-0x0000000005190000-memory.dmp

Filesize
64KB

Download
memory/432-139-0x0000000006E30000-0x0000000006ECC000-memory.dmp

Filesize
624KB

Download
memory/1752-140-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1752-143-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1752-146-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1752-155-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/3132-147-0x0000000000380000-0x00000000003E6000-memory.dmp

Filesize
408KB

Download