blustealer | 14efe8b8b81235d085f30946d19abd59bf194bf59b1a8e19afc959a2a7f8d560

General

Target

a673b0550ad375402e1090c9b69a11f7.exe
Size

1.3MB
MD5

a673b0550ad375402e1090c9b69a11f7
SHA1

96dd27b97b704edde0a8fa5b62233aa38a9268d7
SHA256

14efe8b8b81235d085f30946d19abd59bf194bf59b1a8e19afc959a2a7f8d560
SHA512

a275f407740dfe1df98eb95a7e590701f3bf33a24d172932bc5f16f4d3073014e311c201b8ce023611f62af7b9822036d38bd159f91093e4dcf89bcae04e0f38
SSDEEP

12288:0S8aR9O0t5oMg5PaptYdNBIWDwMUxAd9PBxLhBfTIVq8sLFFtH503zktIxr8b:0JaR9k1PxdEWDrzvvUtsLFTq3zktlb

Score

10^/10

blustealer stealer

Malware Config

Extracted

Family

blustealer

Credentials

Protocol: smtp
Host:
restd.club
Port:
587
Username:
[email protected]
Password:
@433u7a~IdTF

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-1-5-21-1712835645-2080934712-2142796781-1000\Control Panel\International\Geo\Nation	a673b0550ad375402e1090c9b69a11f7.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4556 set thread context of 5352	4556	a673b0550ad375402e1090c9b69a11f7.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/Job

T1053

pid	Process
4072	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
4556	a673b0550ad375402e1090c9b69a11f7.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4556	a673b0550ad375402e1090c9b69a11f7.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5352	a673b0550ad375402e1090c9b69a11f7.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4556 wrote to memory of 4072	4556	a673b0550ad375402e1090c9b69a11f7.exe	96
PID 4556 wrote to memory of 4072	4556	a673b0550ad375402e1090c9b69a11f7.exe	96
PID 4556 wrote to memory of 4072	4556	a673b0550ad375402e1090c9b69a11f7.exe	96
PID 4556 wrote to memory of 5352	4556	a673b0550ad375402e1090c9b69a11f7.exe	98
PID 4556 wrote to memory of 5352	4556	a673b0550ad375402e1090c9b69a11f7.exe	98
PID 4556 wrote to memory of 5352	4556	a673b0550ad375402e1090c9b69a11f7.exe	98
PID 4556 wrote to memory of 5352	4556	a673b0550ad375402e1090c9b69a11f7.exe	98
PID 4556 wrote to memory of 5352	4556	a673b0550ad375402e1090c9b69a11f7.exe	98
PID 4556 wrote to memory of 5352	4556	a673b0550ad375402e1090c9b69a11f7.exe	98
PID 4556 wrote to memory of 5352	4556	a673b0550ad375402e1090c9b69a11f7.exe	98
PID 4556 wrote to memory of 5352	4556	a673b0550ad375402e1090c9b69a11f7.exe	98

C:\Users\Admin\AppData\Local\Temp\a673b0550ad375402e1090c9b69a11f7.exe
"C:\Users\Admin\AppData\Local\Temp\a673b0550ad375402e1090c9b69a11f7.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4556
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gIdlGalIWxj" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA1D.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:4072
- C:\Users\Admin\AppData\Local\Temp\a673b0550ad375402e1090c9b69a11f7.exe
  "C:\Users\Admin\AppData\Local\Temp\a673b0550ad375402e1090c9b69a11f7.exe"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:5352

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpA1D.tmp

Filesize
1KB

MD5
2ccaf828d600f66e1073ff0af22882f1

SHA1
d4ae68a1da8d99ddcc2521f8b3c02a28fc932715

SHA256
6b69e7a8bc71f008356a652589d2979dbd13cc4b65cc7029f6962ae78f44f5b0

SHA512
5a56a603693dc62fa69e569b15bb2c3cab170b1f1f409c50b88d1850216ba00335c22fa3c50d04b6e5b89959b8a356aed14372aed94247837a1c9c8af5f35a0c

Download Submit
memory/4556-8-0x00000000046C0000-0x00000000046DE000-memory.dmp

Filesize
120KB

Download
memory/4556-5-0x0000000004F00000-0x0000000004F10000-memory.dmp

Filesize
64KB

Download
memory/4556-9-0x0000000074920000-0x00000000750D0000-memory.dmp

Filesize
7.7MB

Download
memory/4556-4-0x0000000004D90000-0x0000000004E22000-memory.dmp

Filesize
584KB

Download
memory/4556-10-0x0000000004F00000-0x0000000004F10000-memory.dmp

Filesize
64KB

Download
memory/4556-6-0x0000000004D40000-0x0000000004D4A000-memory.dmp

Filesize
40KB

Download
memory/4556-7-0x0000000004E90000-0x0000000004EE6000-memory.dmp

Filesize
344KB

Download
memory/4556-11-0x0000000007B10000-0x0000000007BF6000-memory.dmp

Filesize
920KB

Download
memory/4556-3-0x00000000052A0000-0x0000000005844000-memory.dmp

Filesize
5.6MB

Download
memory/4556-2-0x0000000004C50000-0x0000000004CEC000-memory.dmp

Filesize
624KB

Download
memory/4556-0-0x0000000000160000-0x00000000002B4000-memory.dmp

Filesize
1.3MB

Download
memory/4556-12-0x0000000006330000-0x00000000063AC000-memory.dmp

Filesize
496KB

Download
memory/4556-1-0x0000000074920000-0x00000000750D0000-memory.dmp

Filesize
7.7MB

Download
memory/4556-22-0x0000000074920000-0x00000000750D0000-memory.dmp

Filesize
7.7MB

Download
memory/5352-21-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/5352-18-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/5352-25-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads