blustealer | 03101293ef6b23593c4ff95a36528316a1d72c75568a9e9812a100dda87dead2

General

Target

INVOICE_.exe
Size

1.0MB
MD5

d01af08af1935589ed6974734f764f5a
SHA1

75d31c4f55e98d500abac8a5ab304a559283e9e5
SHA256

f7c5b46a0b80bd17ec7af21458bbc2cd7c0873f81218475013b50953a72a887f
SHA512

958a8efa7867077c7dbf66b21090d9186d4757e9f71895ed04ea48d6ba0f79b1a2d7789710921a15f0cdc5d83bf1d5d10260445982555e58bf96101aed026e7c
SSDEEP

24576:vXOGXrxgZIYdflxH28iLJ6fLOscta6VQz5CZporN2OtOzy:vX3rx43g8iLJkLOjs6VkCZ2x1

Score

10^/10

blustealer spyware stealer

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot6246601421:AAFrAwaqm-G2V9ysvgyBq2dzNs5Gp-CKwaw/sendMessage?chat_id=5523238206

Signatures

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

Loads dropped DLL 2 IoCs

pid	Process
1452	INVOICE_.exe
1452	INVOICE_.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1968 set thread context of 1452	1968	INVOICE_.exe	31
PID 1452 set thread context of 1500	1452	INVOICE_.exe	33

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

T1053

pid	Process
1748	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1608	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1608	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1452	INVOICE_.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1968 wrote to memory of 1608	1968	INVOICE_.exe	27
PID 1968 wrote to memory of 1608	1968	INVOICE_.exe	27
PID 1968 wrote to memory of 1608	1968	INVOICE_.exe	27
PID 1968 wrote to memory of 1608	1968	INVOICE_.exe	27
PID 1968 wrote to memory of 1748	1968	INVOICE_.exe	29
PID 1968 wrote to memory of 1748	1968	INVOICE_.exe	29
PID 1968 wrote to memory of 1748	1968	INVOICE_.exe	29
PID 1968 wrote to memory of 1748	1968	INVOICE_.exe	29
PID 1968 wrote to memory of 1452	1968	INVOICE_.exe	31
PID 1968 wrote to memory of 1452	1968	INVOICE_.exe	31
PID 1968 wrote to memory of 1452	1968	INVOICE_.exe	31
PID 1968 wrote to memory of 1452	1968	INVOICE_.exe	31
PID 1968 wrote to memory of 1452	1968	INVOICE_.exe	31
PID 1968 wrote to memory of 1452	1968	INVOICE_.exe	31
PID 1968 wrote to memory of 1452	1968	INVOICE_.exe	31
PID 1968 wrote to memory of 1452	1968	INVOICE_.exe	31
PID 1968 wrote to memory of 1452	1968	INVOICE_.exe	31
PID 1452 wrote to memory of 1500	1452	INVOICE_.exe	33
PID 1452 wrote to memory of 1500	1452	INVOICE_.exe	33
PID 1452 wrote to memory of 1500	1452	INVOICE_.exe	33
PID 1452 wrote to memory of 1500	1452	INVOICE_.exe	33
PID 1452 wrote to memory of 1500	1452	INVOICE_.exe	33
PID 1452 wrote to memory of 1500	1452	INVOICE_.exe	33
PID 1452 wrote to memory of 1500	1452	INVOICE_.exe	33
PID 1452 wrote to memory of 1500	1452	INVOICE_.exe	33
PID 1452 wrote to memory of 1500	1452	INVOICE_.exe	33

C:\Users\Admin\AppData\Local\Temp\INVOICE_.exe
"C:\Users\Admin\AppData\Local\Temp\INVOICE_.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1968
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\PqhyBiwUgJm.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1608
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\PqhyBiwUgJm" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5EB.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1748
- C:\Users\Admin\AppData\Local\Temp\INVOICE_.exe
  "C:\Users\Admin\AppData\Local\Temp\INVOICE_.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1452
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
    C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
    3⤵
    PID:1500

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp5EB.tmp

Filesize
1KB

MD5
b9748d247c6cfdc46a899b21a503c91e

SHA1
829c5201a122102edb957583d62abcc85a76d0d9

SHA256
c2b10ca776dc90d9bd9998062435074bda2954d9e69f34de01a283d97328d06c

SHA512
2c488d6ed99a074a99fc1025e50d72e278664d452486b2b92310fbdfcf47e8876f106ddfc1140ce6da166b57df7fcdd8c7e36d1685ccb667982b94dc5a4c9600

Download Submit
C:\Users\Public\4246454246424646303030323036443742464246463030303230\SQLite3_StdCall.dll

Filesize
59KB

MD5
d77b227a28a78627c2323cac75948390

SHA1
e228c3951f2a9fd0febfe07390633ab4f35727f4

SHA256
527ec201dcd7695bd9830eb82ab35a3986121de9ea156193834aed9d79223b82

SHA512
5627fbc8bbb98f644e21f101a68f0e0b07b87c264d00ea227286bed8ab6dd4ebf5114f03b632604f775ff93666a409a1a179a81ebfc9246956ba8150ff5b0587

Download Submit
C:\Users\Public\424645~1\SQLITE~1.ZIP

Filesize
31KB

MD5
e91150a120a7d0b90c9541ddc35df2da

SHA1
8b218f7653cba01cd73a818de380e5b1018d1d40

SHA256
e96c6c2d75c1af719909fac9cbf1a63441052c0acc5bfff8e53d663dd0d7ee89

SHA512
3a796d7556799dee2bf2c0ee402b5ad39908ee2572f6e3a9dd78229d0f4e9d3f5236d0e1af08b6a0866189e219df03b0ed428a4b5dfb4ebdf585436615e66e28

Download Submit
C:\Users\Public\424645~1\sqlite3.zip

Filesize
295KB

MD5
21765a296b37c1b074bc14316dc9d6cd

SHA1
c99c541d528ad6defe78970e90361d86ad5fa6ae

SHA256
c5a7d1d5f61a535aa511fc9b8119ff5103be48f97f89e123a138453c4aa5fc66

SHA512
5d3392d0f9ee7ed8d9471375ff5333554ca80b7dbe436c2bacb42c1ffe8a5c687835d58ae8425029f83500f43c19268b3315a5c43edb12b707df367e6b86ea0a

Download Submit
\Users\Public\4246454246424646303030323036443742464246463030303230\SQLite3_StdCall.dll

Filesize
59KB

MD5
d77b227a28a78627c2323cac75948390

SHA1
e228c3951f2a9fd0febfe07390633ab4f35727f4

SHA256
527ec201dcd7695bd9830eb82ab35a3986121de9ea156193834aed9d79223b82

SHA512
5627fbc8bbb98f644e21f101a68f0e0b07b87c264d00ea227286bed8ab6dd4ebf5114f03b632604f775ff93666a409a1a179a81ebfc9246956ba8150ff5b0587

Download Submit
\Users\Public\4246454246424646303030323036443742464246463030303230\sqlite3.dll

Filesize
585KB

MD5
5405413fff79b8d9c747aa900f60f082

SHA1
71caf8907ddd9a3a25d71356bd2ce09bd293bd78

SHA256
3e5a28ffde07ac661c26b6ccf94e64c1c90b1f25b3b24c90605aa922b87642eb

SHA512
2f09a30fc4da5166bd665210fefa1d44ce344f0ec6a37f127d677aeb3ca4fc0d09b7c9c1540f57da1e3449b7f588a1c61115395e965fa153d4baa5033266ed66

Download Submit
memory/1452-68-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/1452-79-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/1452-140-0x0000000060900000-0x0000000060989000-memory.dmp

Filesize
548KB

Download
memory/1452-67-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/1452-139-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/1452-69-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/1452-71-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1452-76-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/1500-123-0x0000000000090000-0x000000000009E000-memory.dmp

Filesize
56KB

Download
memory/1500-127-0x0000000000090000-0x000000000009E000-memory.dmp

Filesize
56KB

Download
memory/1500-124-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1500-125-0x0000000000090000-0x000000000009E000-memory.dmp

Filesize
56KB

Download
memory/1500-130-0x0000000000C10000-0x0000000000C50000-memory.dmp

Filesize
256KB

Download
memory/1500-129-0x0000000000090000-0x000000000009E000-memory.dmp

Filesize
56KB

Download
memory/1608-81-0x0000000001D80000-0x0000000001DC0000-memory.dmp

Filesize
256KB

Download
memory/1608-82-0x0000000001D80000-0x0000000001DC0000-memory.dmp

Filesize
256KB

Download
memory/1608-80-0x0000000001D80000-0x0000000001DC0000-memory.dmp

Filesize
256KB

Download
memory/1608-141-0x0000000001D80000-0x0000000001DC0000-memory.dmp

Filesize
256KB

Download
memory/1968-54-0x0000000001190000-0x000000000129E000-memory.dmp

Filesize
1.1MB

Download
memory/1968-66-0x000000000A280000-0x000000000A316000-memory.dmp

Filesize
600KB

Download
memory/1968-65-0x000000000A1E0000-0x000000000A27E000-memory.dmp

Filesize
632KB

Download
memory/1968-59-0x0000000004E00000-0x0000000004ED2000-memory.dmp

Filesize
840KB

Download
memory/1968-58-0x0000000000690000-0x000000000069C000-memory.dmp

Filesize
48KB

Download
memory/1968-57-0x0000000000570000-0x000000000057E000-memory.dmp

Filesize
56KB

Download
memory/1968-56-0x0000000004DC0000-0x0000000004E00000-memory.dmp

Filesize
256KB

Download
memory/1968-55-0x0000000004DC0000-0x0000000004E00000-memory.dmp

Filesize
256KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads