blustealer | 9baa729c84b71d5cc983e62d455f63ee65ba13c09d314f8be595e366a9477669

Analysis

max time kernel
148s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20220721-en
resource tags

arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
submitted
08-08-2022 12:46

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General

Target

SecuriteInfo.com.W32.AIDetectNet.01.32418.exe
Size

784KB
MD5

9125b27ee74d370a228c1a0548583d5c
SHA1

64cad7be23c173a8ebd699bbff645140078d859f
SHA256

9baa729c84b71d5cc983e62d455f63ee65ba13c09d314f8be595e366a9477669
SHA512

1c7829ae38769aec0772fb42372732ccd3bdff05cedc48483f58b320258e7090a173632d0f3b0f32f04c0b66d68f0eed334e0d11e968f7bca10e3c9a85e2de41

Score

10^/10

blustealer persistence stealer

Malware Config

Extracted

Family

blustealer

Credentials

Protocol: smtp
Host:
lotexh.shop
Port:
587
Username:
[email protected]
Password:
AmWcR;&S@thk

Signatures

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

Executes dropped EXE 6 IoCs

pid	Process
4996	Icwumtv.exe
1948	Ocdms.exe
4968	doci.exe
2148	Icwumtv.exe
3332	doci.exe
4928	Icwumtv.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\WindowsUpdater.lnk	Ocdms.exe

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WindowsUpdater = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Ocdms.exe\" .."	Ocdms.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 956 set thread context of 4844	956	SecuriteInfo.com.W32.AIDetectNet.01.32418.exe	91
PID 4968 set thread context of 1460	4968	doci.exe	105
PID 3332 set thread context of 2704	3332	doci.exe	124

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 3 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
536	schtasks.exe
852	schtasks.exe
4848	schtasks.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	956	SecuriteInfo.com.W32.AIDetectNet.01.32418.exe
Token: SeDebugPrivilege	4968	doci.exe
Token: SeDebugPrivilege	3332	doci.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
4996	Icwumtv.exe
2148	Icwumtv.exe
4928	Icwumtv.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 956 wrote to memory of 4844	956	SecuriteInfo.com.W32.AIDetectNet.01.32418.exe	91
PID 956 wrote to memory of 4844	956	SecuriteInfo.com.W32.AIDetectNet.01.32418.exe	91
PID 956 wrote to memory of 4844	956	SecuriteInfo.com.W32.AIDetectNet.01.32418.exe	91
PID 956 wrote to memory of 4844	956	SecuriteInfo.com.W32.AIDetectNet.01.32418.exe	91
PID 956 wrote to memory of 4844	956	SecuriteInfo.com.W32.AIDetectNet.01.32418.exe	91
PID 956 wrote to memory of 4844	956	SecuriteInfo.com.W32.AIDetectNet.01.32418.exe	91
PID 956 wrote to memory of 4844	956	SecuriteInfo.com.W32.AIDetectNet.01.32418.exe	91
PID 956 wrote to memory of 4844	956	SecuriteInfo.com.W32.AIDetectNet.01.32418.exe	91
PID 956 wrote to memory of 1624	956	SecuriteInfo.com.W32.AIDetectNet.01.32418.exe	92
PID 956 wrote to memory of 1624	956	SecuriteInfo.com.W32.AIDetectNet.01.32418.exe	92
PID 956 wrote to memory of 1624	956	SecuriteInfo.com.W32.AIDetectNet.01.32418.exe	92
PID 956 wrote to memory of 3380	956	SecuriteInfo.com.W32.AIDetectNet.01.32418.exe	94
PID 956 wrote to memory of 3380	956	SecuriteInfo.com.W32.AIDetectNet.01.32418.exe	94
PID 956 wrote to memory of 3380	956	SecuriteInfo.com.W32.AIDetectNet.01.32418.exe	94
PID 956 wrote to memory of 3520	956	SecuriteInfo.com.W32.AIDetectNet.01.32418.exe	97
PID 956 wrote to memory of 3520	956	SecuriteInfo.com.W32.AIDetectNet.01.32418.exe	97
PID 956 wrote to memory of 3520	956	SecuriteInfo.com.W32.AIDetectNet.01.32418.exe	97
PID 3380 wrote to memory of 536	3380	cmd.exe	98
PID 3380 wrote to memory of 536	3380	cmd.exe	98
PID 3380 wrote to memory of 536	3380	cmd.exe	98
PID 4844 wrote to memory of 4996	4844	vbc.exe	101
PID 4844 wrote to memory of 4996	4844	vbc.exe	101
PID 4844 wrote to memory of 4996	4844	vbc.exe	101
PID 4844 wrote to memory of 1948	4844	vbc.exe	102
PID 4844 wrote to memory of 1948	4844	vbc.exe	102
PID 4968 wrote to memory of 1460	4968	doci.exe	105
PID 4968 wrote to memory of 1460	4968	doci.exe	105
PID 4968 wrote to memory of 1460	4968	doci.exe	105
PID 4968 wrote to memory of 1460	4968	doci.exe	105
PID 4968 wrote to memory of 1460	4968	doci.exe	105
PID 4968 wrote to memory of 1460	4968	doci.exe	105
PID 4968 wrote to memory of 1460	4968	doci.exe	105
PID 4968 wrote to memory of 1460	4968	doci.exe	105
PID 4968 wrote to memory of 2748	4968	doci.exe	106
PID 4968 wrote to memory of 2748	4968	doci.exe	106
PID 4968 wrote to memory of 2748	4968	doci.exe	106
PID 4968 wrote to memory of 2784	4968	doci.exe	108
PID 4968 wrote to memory of 2784	4968	doci.exe	108
PID 4968 wrote to memory of 2784	4968	doci.exe	108
PID 4968 wrote to memory of 1376	4968	doci.exe	110
PID 4968 wrote to memory of 1376	4968	doci.exe	110
PID 4968 wrote to memory of 1376	4968	doci.exe	110
PID 2784 wrote to memory of 852	2784	cmd.exe	112
PID 2784 wrote to memory of 852	2784	cmd.exe	112
PID 2784 wrote to memory of 852	2784	cmd.exe	112
PID 1460 wrote to memory of 2148	1460	vbc.exe	113
PID 1460 wrote to memory of 2148	1460	vbc.exe	113
PID 1460 wrote to memory of 2148	1460	vbc.exe	113
PID 3332 wrote to memory of 2704	3332	doci.exe	124
PID 3332 wrote to memory of 2704	3332	doci.exe	124
PID 3332 wrote to memory of 2704	3332	doci.exe	124
PID 3332 wrote to memory of 2704	3332	doci.exe	124
PID 3332 wrote to memory of 2704	3332	doci.exe	124
PID 3332 wrote to memory of 2704	3332	doci.exe	124
PID 3332 wrote to memory of 2704	3332	doci.exe	124
PID 3332 wrote to memory of 2704	3332	doci.exe	124
PID 3332 wrote to memory of 1240	3332	doci.exe	125
PID 3332 wrote to memory of 1240	3332	doci.exe	125
PID 3332 wrote to memory of 1240	3332	doci.exe	125
PID 3332 wrote to memory of 5040	3332	doci.exe	126
PID 3332 wrote to memory of 5040	3332	doci.exe	126
PID 3332 wrote to memory of 5040	3332	doci.exe	126
PID 3332 wrote to memory of 3112	3332	doci.exe	128
PID 3332 wrote to memory of 3112	3332	doci.exe	128

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetectNet.01.32418.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetectNet.01.32418.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:956
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4844
- - C:\Users\Admin\AppData\Local\Temp\Icwumtv.exe
    "C:\Users\Admin\AppData\Local\Temp\Icwumtv.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    PID:4996
- - C:\Users\Admin\AppData\Local\Temp\Ocdms.exe
    "C:\Users\Admin\AppData\Local\Temp\Ocdms.exe"
    3⤵
    - Executes dropped EXE
    - Drops startup file
    - Adds Run key to start application
    PID:1948
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\doci"
  2⤵
  PID:1624
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\doci\doci.exe'" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3380
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\doci\doci.exe'" /f
    3⤵
    - Creates scheduled task(s)
    PID:536
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetectNet.01.32418.exe" "C:\Users\Admin\AppData\Roaming\doci\doci.exe"
  2⤵
  PID:3520

C:\Users\Admin\AppData\Roaming\doci\doci.exe
C:\Users\Admin\AppData\Roaming\doci\doci.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4968
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1460
- - C:\Users\Admin\AppData\Local\Temp\Icwumtv.exe
    "C:\Users\Admin\AppData\Local\Temp\Icwumtv.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    PID:2148
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\doci"
  2⤵
  PID:2748
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\doci\doci.exe'" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2784
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\doci\doci.exe'" /f
    3⤵
    - Creates scheduled task(s)
    PID:852
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c copy "C:\Users\Admin\AppData\Roaming\doci\doci.exe" "C:\Users\Admin\AppData\Roaming\doci\doci.exe"
  2⤵
  PID:1376

C:\Users\Admin\AppData\Roaming\doci\doci.exe
C:\Users\Admin\AppData\Roaming\doci\doci.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3332
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  PID:2704
- - C:\Users\Admin\AppData\Local\Temp\Icwumtv.exe
    "C:\Users\Admin\AppData\Local\Temp\Icwumtv.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    PID:4928
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\doci"
  2⤵
  PID:1240
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\doci\doci.exe'" /f
  2⤵
  PID:5040
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\doci\doci.exe'" /f
    3⤵
    - Creates scheduled task(s)
    PID:4848
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c copy "C:\Users\Admin\AppData\Roaming\doci\doci.exe" "C:\Users\Admin\AppData\Roaming\doci\doci.exe"
  2⤵
  PID:3112

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Scripting

T1064

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

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\Local\Microsoft\CLR_v4.0_32\UsageLogs\doci.exe.log

Filesize
425B

MD5
4eaca4566b22b01cd3bc115b9b0b2196

SHA1
e743e0792c19f71740416e7b3c061d9f1336bf94

SHA256
34ba0ab8d1850e7825763f413142a333ccbc05fa2b5499a28a7d27b8a1c5b4bb

SHA512
bc2b1bf45203e3bb3009a7d37617b8f0f7ffa613680b32de2b963e39d2cf1650614d7035a0cf78f35a4f5cb17a2a439e2e07deaefd2a4275a62efd0a5c0184a1

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\vbc.exe.log

Filesize
1KB

MD5
7ebe314bf617dc3e48b995a6c352740c

SHA1
538f643b7b30f9231a3035c448607f767527a870

SHA256
48178f884b8a4dd96e330b210b0530667d9473a7629fc6b4ad12b614bf438ee8

SHA512
0ba9d8f4244c15285e254d27b4bff7c49344ff845c48bc0bf0d8563072fab4d6f7a6abe6b6742e8375a08e9a3b3e5d5dc4937ab428dbe2dd8e62892fda04507e

Download Submit
C:\Users\Admin\AppData\Local\Temp\Icwumtv.exe

Filesize
632KB

MD5
43fad29e3e0cdba820580d0910c3cfdc

SHA1
939cdf1bb52f4e49192f9959bf539c644796b097

SHA256
edf7d6b1c9104b00cb08e9c1948d80de71bc275094b4deb08e472d67a1887d2e

SHA512
2d6246a4d2129136df7fe6e93dfc988c2de2abf27d368790271a8903e1638f74005e0b64a37a858b92ea9d64f74741801651cd42761ad89dddae578d19cd0c8e

Download Submit
C:\Users\Admin\AppData\Local\Temp\Icwumtv.exe

Filesize
632KB

MD5
43fad29e3e0cdba820580d0910c3cfdc

SHA1
939cdf1bb52f4e49192f9959bf539c644796b097

SHA256
edf7d6b1c9104b00cb08e9c1948d80de71bc275094b4deb08e472d67a1887d2e

SHA512
2d6246a4d2129136df7fe6e93dfc988c2de2abf27d368790271a8903e1638f74005e0b64a37a858b92ea9d64f74741801651cd42761ad89dddae578d19cd0c8e

Download Submit
C:\Users\Admin\AppData\Local\Temp\Icwumtv.exe

Filesize
632KB

MD5
43fad29e3e0cdba820580d0910c3cfdc

SHA1
939cdf1bb52f4e49192f9959bf539c644796b097

SHA256
edf7d6b1c9104b00cb08e9c1948d80de71bc275094b4deb08e472d67a1887d2e

SHA512
2d6246a4d2129136df7fe6e93dfc988c2de2abf27d368790271a8903e1638f74005e0b64a37a858b92ea9d64f74741801651cd42761ad89dddae578d19cd0c8e

Download Submit
C:\Users\Admin\AppData\Local\Temp\Icwumtv.exe

Filesize
632KB

MD5
43fad29e3e0cdba820580d0910c3cfdc

SHA1
939cdf1bb52f4e49192f9959bf539c644796b097

SHA256
edf7d6b1c9104b00cb08e9c1948d80de71bc275094b4deb08e472d67a1887d2e

SHA512
2d6246a4d2129136df7fe6e93dfc988c2de2abf27d368790271a8903e1638f74005e0b64a37a858b92ea9d64f74741801651cd42761ad89dddae578d19cd0c8e

Download Submit
C:\Users\Admin\AppData\Local\Temp\Icwumtv.exe

Filesize
632KB

MD5
43fad29e3e0cdba820580d0910c3cfdc

SHA1
939cdf1bb52f4e49192f9959bf539c644796b097

SHA256
edf7d6b1c9104b00cb08e9c1948d80de71bc275094b4deb08e472d67a1887d2e

SHA512
2d6246a4d2129136df7fe6e93dfc988c2de2abf27d368790271a8903e1638f74005e0b64a37a858b92ea9d64f74741801651cd42761ad89dddae578d19cd0c8e

Download Submit
C:\Users\Admin\AppData\Local\Temp\Ocdms.exe

Filesize
69KB

MD5
143df79cc6329bb7d28a3914af42bad0

SHA1
bb40cbe713905da365bdfbfaa76b5afa2711500b

SHA256
c7caa2be3c12c49ed887e08a9f87afbbaef669f64ab5d9ab7a7e1acd95a99f5e

SHA512
face945582b4b52c35c7335caf2ba0e40296f029412e0b9f0a6fcb7764b3574ffabcd0fa7ba41d22ef9570c93f55a0ce058124f9efe279740bbd7b02b2459aa8

Download Submit
C:\Users\Admin\AppData\Local\Temp\Ocdms.exe

Filesize
69KB

MD5
143df79cc6329bb7d28a3914af42bad0

SHA1
bb40cbe713905da365bdfbfaa76b5afa2711500b

SHA256
c7caa2be3c12c49ed887e08a9f87afbbaef669f64ab5d9ab7a7e1acd95a99f5e

SHA512
face945582b4b52c35c7335caf2ba0e40296f029412e0b9f0a6fcb7764b3574ffabcd0fa7ba41d22ef9570c93f55a0ce058124f9efe279740bbd7b02b2459aa8

Download Submit
C:\Users\Admin\AppData\Roaming\doci\doci.exe

Filesize
784KB

MD5
9125b27ee74d370a228c1a0548583d5c

SHA1
64cad7be23c173a8ebd699bbff645140078d859f

SHA256
9baa729c84b71d5cc983e62d455f63ee65ba13c09d314f8be595e366a9477669

SHA512
1c7829ae38769aec0772fb42372732ccd3bdff05cedc48483f58b320258e7090a173632d0f3b0f32f04c0b66d68f0eed334e0d11e968f7bca10e3c9a85e2de41

Download Submit
C:\Users\Admin\AppData\Roaming\doci\doci.exe

Filesize
784KB

MD5
9125b27ee74d370a228c1a0548583d5c

SHA1
64cad7be23c173a8ebd699bbff645140078d859f

SHA256
9baa729c84b71d5cc983e62d455f63ee65ba13c09d314f8be595e366a9477669

SHA512
1c7829ae38769aec0772fb42372732ccd3bdff05cedc48483f58b320258e7090a173632d0f3b0f32f04c0b66d68f0eed334e0d11e968f7bca10e3c9a85e2de41

Download Submit
C:\Users\Admin\AppData\Roaming\doci\doci.exe

Filesize
784KB

MD5
9125b27ee74d370a228c1a0548583d5c

SHA1
64cad7be23c173a8ebd699bbff645140078d859f

SHA256
9baa729c84b71d5cc983e62d455f63ee65ba13c09d314f8be595e366a9477669

SHA512
1c7829ae38769aec0772fb42372732ccd3bdff05cedc48483f58b320258e7090a173632d0f3b0f32f04c0b66d68f0eed334e0d11e968f7bca10e3c9a85e2de41

Download Submit
memory/956-130-0x0000000000D10000-0x0000000000DDA000-memory.dmp

Filesize
808KB

Download
memory/1948-149-0x00007FFE1C050000-0x00007FFE1CA86000-memory.dmp

Filesize
10.2MB

Download
memory/4844-139-0x00000000053C0000-0x0000000005452000-memory.dmp

Filesize
584KB

Download
memory/4844-138-0x00000000058D0000-0x0000000005E74000-memory.dmp

Filesize
5.6MB

Download
memory/4844-140-0x0000000005460000-0x000000000546A000-memory.dmp

Filesize
40KB

Download
memory/4844-133-0x0000000000F00000-0x0000000000F80000-memory.dmp

Filesize
512KB

Download
memory/4968-152-0x0000000000600000-0x00000000006CA000-memory.dmp

Filesize
808KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads