blustealer | e062710d9f3f47ef33753d6fb236352da9bca3857dfbb94980d86f3843abec09

Analysis

max time kernel
93s
max time network
33s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
29/03/2023, 01:50

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe
Size

1.1MB
MD5

ec7c37ae9c0377f3240a274290c9c214
SHA1

432915cb9e9e860a84e142719bf0e82392c69a6a
SHA256

5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f
SHA512

326f282eb2a8c6f79de6f7019fc7d16be88345467301bc1d28c36f5c7094ac38ec206dc068d24c8bcecd0cb02e39af1d5070f839f9518f0e8e149ac5c5c0c576
SSDEEP

24576:KZUu39V1vMSb4gz1o5Ti81zSdyrjLDjFPR6KrXmTDa:yltsSkW1o5Tiouy/z6KrXmX

Score

10^/10

blustealer collection stealer

Malware Config

Extracted

Family

blustealer

https://api.telegram.org/bot5916787654:AAEJEadEk6VSBHL82vTGRS9aaNuh-zG53Rg/sendMessage?chat_id=5483672364

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-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\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 1972 set thread context of 316	1972	5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe	34
PID 316 set thread context of 812	316	5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe	35

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
1664	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
568	powershell.exe
1488	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	568	powershell.exe
Token: SeDebugPrivilege	1488	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
316	5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1972 wrote to memory of 1488	1972	5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe	28
PID 1972 wrote to memory of 1488	1972	5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe	28
PID 1972 wrote to memory of 1488	1972	5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe	28
PID 1972 wrote to memory of 1488	1972	5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe	28
PID 1972 wrote to memory of 568	1972	5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe	30
PID 1972 wrote to memory of 568	1972	5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe	30
PID 1972 wrote to memory of 568	1972	5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe	30
PID 1972 wrote to memory of 568	1972	5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe	30
PID 1972 wrote to memory of 1664	1972	5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe	32
PID 1972 wrote to memory of 1664	1972	5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe	32
PID 1972 wrote to memory of 1664	1972	5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe	32
PID 1972 wrote to memory of 1664	1972	5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe	32
PID 1972 wrote to memory of 316	1972	5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe	34
PID 1972 wrote to memory of 316	1972	5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe	34
PID 1972 wrote to memory of 316	1972	5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe	34
PID 1972 wrote to memory of 316	1972	5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe	34
PID 1972 wrote to memory of 316	1972	5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe	34
PID 1972 wrote to memory of 316	1972	5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe	34
PID 1972 wrote to memory of 316	1972	5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe	34
PID 1972 wrote to memory of 316	1972	5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe	34
PID 1972 wrote to memory of 316	1972	5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe	34
PID 316 wrote to memory of 812	316	5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe	35
PID 316 wrote to memory of 812	316	5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe	35
PID 316 wrote to memory of 812	316	5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe	35
PID 316 wrote to memory of 812	316	5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe	35
PID 316 wrote to memory of 812	316	5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe	35
PID 316 wrote to memory of 812	316	5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe	35
PID 316 wrote to memory of 812	316	5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe	35
PID 316 wrote to memory of 812	316	5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe	35
PID 316 wrote to memory of 812	316	5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe	35

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe
"C:\Users\Admin\AppData\Local\Temp\5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1972
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1488
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\QrErGuxRXcieO.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:568
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QrErGuxRXcieO" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2B65.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1664
- C:\Users\Admin\AppData\Local\Temp\5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe
  "C:\Users\Admin\AppData\Local\Temp\5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:316
- - 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:812

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

System Information Discovery

T1082

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp2B65.tmp

Filesize
1KB

MD5
24e63bbda543a6ecc8304102ea207433

SHA1
5da95813d0d18f29227e28aa74df259f1afab506

SHA256
dc775fdb8d4f9d7556687c438613ab8c7307ed2b9a2608d26aadbec15b815285

SHA512
77703203b7d3d59ebae1d37f7ac09387a1dee6edb2e30c001968a1215faf7a952ab140d04e367388f1eadec7869b41c7119fb3b06f2ff6c08d503f55869db446

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\HD0NEP5HWA63RTR2Z7G9.temp

Filesize
7KB

MD5
c35ccf09f232f0405901e31abd0e1eb4

SHA1
45d53cceb4805ca5f8a47c9768bb8f5ef4495c25

SHA256
08abd89549efea4b4f2d7f5001530f0f30b33e1d348a13fcc42fdbf30e45c74d

SHA512
0cc02593ee914f58f1395731a6a0a00fd26aa54e3bf167a5c059e06e5bd81d7c6d03421a67dee16a6b119d362da2bd1bef08cf77f578b429c35cd37a21d28b58

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
c35ccf09f232f0405901e31abd0e1eb4

SHA1
45d53cceb4805ca5f8a47c9768bb8f5ef4495c25

SHA256
08abd89549efea4b4f2d7f5001530f0f30b33e1d348a13fcc42fdbf30e45c74d

SHA512
0cc02593ee914f58f1395731a6a0a00fd26aa54e3bf167a5c059e06e5bd81d7c6d03421a67dee16a6b119d362da2bd1bef08cf77f578b429c35cd37a21d28b58

Download Submit
memory/316-76-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/316-79-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/316-92-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/316-82-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/316-77-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/316-74-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/316-72-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/316-73-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/568-83-0x0000000002280000-0x00000000022C0000-memory.dmp

Filesize
256KB

Download
memory/812-88-0x00000000000D0000-0x0000000000136000-memory.dmp

Filesize
408KB

Download
memory/812-84-0x00000000000D0000-0x0000000000136000-memory.dmp

Filesize
408KB

Download
memory/812-85-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/812-86-0x00000000000D0000-0x0000000000136000-memory.dmp

Filesize
408KB

Download
memory/812-90-0x00000000000D0000-0x0000000000136000-memory.dmp

Filesize
408KB

Download
memory/812-91-0x0000000000930000-0x00000000009EC000-memory.dmp

Filesize
752KB

Download
memory/1972-55-0x0000000004A10000-0x0000000004A50000-memory.dmp

Filesize
256KB

Download
memory/1972-58-0x0000000007FF0000-0x00000000080DC000-memory.dmp

Filesize
944KB

Download
memory/1972-56-0x0000000000520000-0x0000000000540000-memory.dmp

Filesize
128KB

Download
memory/1972-54-0x0000000001110000-0x0000000001224000-memory.dmp

Filesize
1.1MB

Download
memory/1972-71-0x0000000008620000-0x0000000008696000-memory.dmp

Filesize
472KB

Download
memory/1972-57-0x0000000000590000-0x000000000059C000-memory.dmp

Filesize
48KB

Download