blustealer | de7e8838d1448ac79810b71d637b62165d32cb1932c211e1ea571bd4770b0cea

Resubmissions

14/07/2022, 08:00

220714-jv45tsdfdl10

15/09/2021, 22:04

210915-1yxzcsbcf28

Analysis

max time kernel
205s
max time network
206s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
14/07/2022, 08:00

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General

Target
e552183d16e0d6629c88a4a163d266fc.exe
Size 744KB
Sample220714-jv45tsdfdl
SHA256 de7e8838d1448ac79810b71d637b62165d32cb1932c211e1ea571bd4770b0cea
MD5 e552183d16e0d6629c88a4a163d266fc
SHA1 44fa7083992de212ce99059213101621d44fa0b0
SHA512 efa9fd3b8b0787b86c7dd6b9b49e2d2ca3235cf20a7d313b7626e1ed4558a3c90fd7bce1cfcdfcf77e1d932593111d43a674d9e586626f7d845d892f8c64c4e7
MD5 SHA1 SHA512

Score

10^/10

blustealer stealer

Malware Config

Extracted

Family

blustealer

Credentials

Protocol
smtp
Host
restd.xyz
Port
587
Username
[email protected]
Password
3a-XMb^)jn=T

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-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	e552183d16e0d6629c88a4a163d266fc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4832 set thread context of 3540	4832	e552183d16e0d6629c88a4a163d266fc.exe	79

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

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
4916	schtasks.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4832	e552183d16e0d6629c88a4a163d266fc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3540	e552183d16e0d6629c88a4a163d266fc.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 4832 wrote to memory of 3540	4832	e552183d16e0d6629c88a4a163d266fc.exe	79
PID 4832 wrote to memory of 3540	4832	e552183d16e0d6629c88a4a163d266fc.exe	79
PID 4832 wrote to memory of 3540	4832	e552183d16e0d6629c88a4a163d266fc.exe	79
PID 4832 wrote to memory of 3540	4832	e552183d16e0d6629c88a4a163d266fc.exe	79
PID 4832 wrote to memory of 3540	4832	e552183d16e0d6629c88a4a163d266fc.exe	79
PID 4832 wrote to memory of 3540	4832	e552183d16e0d6629c88a4a163d266fc.exe	79
PID 4832 wrote to memory of 3540	4832	e552183d16e0d6629c88a4a163d266fc.exe	79
PID 4832 wrote to memory of 3540	4832	e552183d16e0d6629c88a4a163d266fc.exe	79
PID 4832 wrote to memory of 4124	4832	e552183d16e0d6629c88a4a163d266fc.exe	81
PID 4832 wrote to memory of 4124	4832	e552183d16e0d6629c88a4a163d266fc.exe	81
PID 4832 wrote to memory of 4124	4832	e552183d16e0d6629c88a4a163d266fc.exe	81
PID 4832 wrote to memory of 3096	4832	e552183d16e0d6629c88a4a163d266fc.exe	83
PID 4832 wrote to memory of 3096	4832	e552183d16e0d6629c88a4a163d266fc.exe	83
PID 4832 wrote to memory of 3096	4832	e552183d16e0d6629c88a4a163d266fc.exe	83
PID 4124 wrote to memory of 4916	4124	cmd.exe	85
PID 4124 wrote to memory of 4916	4124	cmd.exe	85
PID 4124 wrote to memory of 4916	4124	cmd.exe	85

C:\Users\Admin\AppData\Local\Temp\e552183d16e0d6629c88a4a163d266fc.exe
"C:\Users\Admin\AppData\Local\Temp\e552183d16e0d6629c88a4a163d266fc.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4832
- C:\Users\Admin\AppData\Local\Temp\e552183d16e0d6629c88a4a163d266fc.exe
  "C:\Users\Admin\AppData\Local\Temp\e552183d16e0d6629c88a4a163d266fc.exe"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:3540
- 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\browse\browse.exe'" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4124
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nano" /tr "'C:\Users\Admin\AppData\Roaming\browse\browse.exe'" /f
    3⤵
    - Creates scheduled task(s)
    PID:4916
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Local\Temp\e552183d16e0d6629c88a4a163d266fc.exe" "C:\Users\Admin\AppData\Roaming\browse\browse.exe"
  2⤵
  PID:3096

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3540-142-0x0000000000400000-0x000000000047A000-memory.dmp

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memory/3540-136-0x0000000000400000-0x000000000047A000-memory.dmp

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memory/3540-138-0x0000000000400000-0x000000000047A000-memory.dmp

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memory/3540-141-0x0000000000400000-0x000000000047A000-memory.dmp

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memory/4832-132-0x00000000058C0000-0x0000000005952000-memory.dmp

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memory/4832-133-0x00000000059B0000-0x0000000005A16000-memory.dmp

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memory/4832-134-0x0000000005D30000-0x0000000005D3A000-memory.dmp

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memory/4832-130-0x0000000000E10000-0x0000000000ED0000-memory.dmp

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memory/4832-131-0x0000000005DD0000-0x0000000006374000-memory.dmp

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Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads