blustealer | 6b747506cd4c9f9807084784cc5c67b5b134258c059d8089c6406e3585db5275

Analysis

max time kernel
147s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
12-01-2024 00:27

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General

Target

54fd4c25a6a9bfa5f54a6b77fb1a8de3.exe
Size

2.3MB
MD5

54fd4c25a6a9bfa5f54a6b77fb1a8de3
SHA1

3ef6347026b0269bffa572f41a0c8f666d5ab5c1
SHA256

6b747506cd4c9f9807084784cc5c67b5b134258c059d8089c6406e3585db5275
SHA512

34ad184a3bbbae4a6dc063b9d38cbd69156ea8eb5546344c8b7b05aa08053f06e7c322e28022f2712953497ae7f1d4564f7832a39e4176ab06be7113d7c6172e
SSDEEP

24576:6K1ZYe0/8W5p9NIaP7jefuYXeT7IPulgxXN/odo:PB00kpgaPaDpPulgxO+

Score

10^/10

blustealer stealer

Malware Config

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
1512	noot.exe

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1948 set thread context of 2808	1948	54fd4c25a6a9bfa5f54a6b77fb1a8de3.exe	30

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/Job

T1053

pid	Process
2060	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1948	54fd4c25a6a9bfa5f54a6b77fb1a8de3.exe
Token: SeDebugPrivilege	1512	noot.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 1948 wrote to memory of 2776	1948	54fd4c25a6a9bfa5f54a6b77fb1a8de3.exe	28
PID 1948 wrote to memory of 2776	1948	54fd4c25a6a9bfa5f54a6b77fb1a8de3.exe	28
PID 1948 wrote to memory of 2776	1948	54fd4c25a6a9bfa5f54a6b77fb1a8de3.exe	28
PID 1948 wrote to memory of 2776	1948	54fd4c25a6a9bfa5f54a6b77fb1a8de3.exe	28
PID 1948 wrote to memory of 2808	1948	54fd4c25a6a9bfa5f54a6b77fb1a8de3.exe	30
PID 1948 wrote to memory of 2808	1948	54fd4c25a6a9bfa5f54a6b77fb1a8de3.exe	30
PID 1948 wrote to memory of 2808	1948	54fd4c25a6a9bfa5f54a6b77fb1a8de3.exe	30
PID 1948 wrote to memory of 2808	1948	54fd4c25a6a9bfa5f54a6b77fb1a8de3.exe	30
PID 1948 wrote to memory of 2808	1948	54fd4c25a6a9bfa5f54a6b77fb1a8de3.exe	30
PID 1948 wrote to memory of 2808	1948	54fd4c25a6a9bfa5f54a6b77fb1a8de3.exe	30
PID 1948 wrote to memory of 2808	1948	54fd4c25a6a9bfa5f54a6b77fb1a8de3.exe	30
PID 1948 wrote to memory of 2808	1948	54fd4c25a6a9bfa5f54a6b77fb1a8de3.exe	30
PID 1948 wrote to memory of 2808	1948	54fd4c25a6a9bfa5f54a6b77fb1a8de3.exe	30
PID 1948 wrote to memory of 2672	1948	54fd4c25a6a9bfa5f54a6b77fb1a8de3.exe	33
PID 1948 wrote to memory of 2672	1948	54fd4c25a6a9bfa5f54a6b77fb1a8de3.exe	33
PID 1948 wrote to memory of 2672	1948	54fd4c25a6a9bfa5f54a6b77fb1a8de3.exe	33
PID 1948 wrote to memory of 2672	1948	54fd4c25a6a9bfa5f54a6b77fb1a8de3.exe	33
PID 1948 wrote to memory of 2392	1948	54fd4c25a6a9bfa5f54a6b77fb1a8de3.exe	35
PID 1948 wrote to memory of 2392	1948	54fd4c25a6a9bfa5f54a6b77fb1a8de3.exe	35
PID 1948 wrote to memory of 2392	1948	54fd4c25a6a9bfa5f54a6b77fb1a8de3.exe	35
PID 1948 wrote to memory of 2392	1948	54fd4c25a6a9bfa5f54a6b77fb1a8de3.exe	35
PID 2672 wrote to memory of 2060	2672	cmd.exe	37
PID 2672 wrote to memory of 2060	2672	cmd.exe	37
PID 2672 wrote to memory of 2060	2672	cmd.exe	37
PID 2672 wrote to memory of 2060	2672	cmd.exe	37
PID 1096 wrote to memory of 1512	1096	taskeng.exe	39
PID 1096 wrote to memory of 1512	1096	taskeng.exe	39
PID 1096 wrote to memory of 1512	1096	taskeng.exe	39
PID 1096 wrote to memory of 1512	1096	taskeng.exe	39

C:\Users\Admin\AppData\Local\Temp\54fd4c25a6a9bfa5f54a6b77fb1a8de3.exe
"C:\Users\Admin\AppData\Local\Temp\54fd4c25a6a9bfa5f54a6b77fb1a8de3.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1948
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c
  2⤵
  PID:2776
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  PID:2808
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /sc minute /mo 1 /tn "Nano" /tr "'C:\Users\Admin\AppData\Roaming\noot\noot.exe'" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2672
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nano" /tr "'C:\Users\Admin\AppData\Roaming\noot\noot.exe'" /f
    3⤵
    - Creates scheduled task(s)
    PID:2060
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Local\Temp\54fd4c25a6a9bfa5f54a6b77fb1a8de3.exe" "C:\Users\Admin\AppData\Roaming\noot\noot.exe"
  2⤵
  PID:2392

C:\Windows\system32\taskeng.exe
taskeng.exe {02DB69F6-B162-46E8-9B6B-F15385E981CD} S-1-5-21-3427588347-1492276948-3422228430-1000:QVMRJQQO\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1096
- C:\Users\Admin\AppData\Roaming\noot\noot.exe
  C:\Users\Admin\AppData\Roaming\noot\noot.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1512

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scripting

T1064

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Scripting

T1064

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\noot\noot.exe

Filesize
2.3MB

MD5
54fd4c25a6a9bfa5f54a6b77fb1a8de3

SHA1
3ef6347026b0269bffa572f41a0c8f666d5ab5c1

SHA256
6b747506cd4c9f9807084784cc5c67b5b134258c059d8089c6406e3585db5275

SHA512
34ad184a3bbbae4a6dc063b9d38cbd69156ea8eb5546344c8b7b05aa08053f06e7c322e28022f2712953497ae7f1d4564f7832a39e4176ab06be7113d7c6172e

Download Submit
memory/1512-22-0x0000000000450000-0x0000000000490000-memory.dmp

Filesize
256KB

Download
memory/1512-21-0x0000000000090000-0x00000000002EA000-memory.dmp

Filesize
2.4MB

Download
memory/1512-20-0x0000000074570000-0x0000000074C5E000-memory.dmp

Filesize
6.9MB

Download
memory/1948-15-0x0000000002350000-0x0000000002390000-memory.dmp

Filesize
256KB

Download
memory/1948-0-0x00000000002C0000-0x000000000051A000-memory.dmp

Filesize
2.4MB

Download
memory/1948-2-0x0000000002350000-0x0000000002390000-memory.dmp

Filesize
256KB

Download
memory/1948-1-0x0000000074570000-0x0000000074C5E000-memory.dmp

Filesize
6.9MB

Download
memory/1948-14-0x0000000074570000-0x0000000074C5E000-memory.dmp

Filesize
6.9MB

Download
memory/2808-5-0x0000000000080000-0x00000000000F6000-memory.dmp

Filesize
472KB

Download
memory/2808-12-0x0000000000080000-0x00000000000F6000-memory.dmp

Filesize
472KB

Download
memory/2808-11-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2808-7-0x0000000000080000-0x00000000000F6000-memory.dmp

Filesize
472KB

Download
memory/2808-3-0x0000000000080000-0x00000000000F6000-memory.dmp

Filesize
472KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads