b88342ddb0238f9bd7f39971baaf9a086cf5cbf8abf72d1eec78170046c33b7a

Analysis

max time kernel
150s
max time network
102s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
28/05/2024, 08:19

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General

Target

3abd05cfdb8cd529b9b31dde1719f8f0_NeikiAnalytics.exe
Size

66KB
MD5

3abd05cfdb8cd529b9b31dde1719f8f0
SHA1

f66e887f0a6c0cbc2ce56cce1d017300f7e9d44f
SHA256

b88342ddb0238f9bd7f39971baaf9a086cf5cbf8abf72d1eec78170046c33b7a
SHA512

78351a8d7e30b9259577c36f975de1ac43c02894170c8fa22be6ec468bbd65b7af5d0579a27e61a64c28ffdbe02f11f8180da7f220bf41fe919a6d1a7482c25d
SSDEEP

1536:EHfetdklPp+07gDSrB8Xru2zGeJxgawTzpXzrDJrXiH:IeklMMYJhqezw/pXzH9iH

Score

10^/10

evasion persistence trojan

Malware Config

Signatures

Detects BazaLoader malware 1 IoCs

BazaLoader is a trojan that transmits logs to the Command and Control (C2) server, encoding them in BASE64 format through GET requests.

trojan

resource	yara_rule
behavioral2/memory/5056-36-0x00000000751F0000-0x000000007534D000-memory.dmp	BazaLoader

Modifies WinLogon for persistence 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "C:\\Windows\\explorer.exe, c:\\windows\\system\\explorer.exe"	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "C:\\Windows\\explorer.exe, c:\\windows\\system\\explorer.exe"	svchost.exe

Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe

Modifies Installed Components in the registry 2 TTPs 8 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{F146C9B1-VMVQ-A9RC-NUFL-D0BA00B4E999}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\mrsys.exe MR"	svchost.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666}	svchost.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666}	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\mrsys.exe MR"	svchost.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432NODE\MICROSOFT\ACTIVE SETUP\INSTALLED COMPONENTS\{F146C9B1-VMVQ-A9RC-NUFL-D0BA00B4E999}	svchost.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666}	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\mrsys.exe MR"	explorer.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{F146C9B1-VMVQ-A9RC-NUFL-D0BA00B4E999}	svchost.exe

Executes dropped EXE 4 IoCs

pid	Process
232	explorer.exe
4852	spoolsv.exe
5056	svchost.exe
3152	spoolsv.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\system\\explorer.exe RO"	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\system\\svchost.exe RO"	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\system\\explorer.exe RO"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\system\\svchost.exe RO"	svchost.exe

Drops file in Windows directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\udsys.exe	explorer.exe
File opened for modification	\??\c:\windows\system\explorer.exe	3abd05cfdb8cd529b9b31dde1719f8f0_NeikiAnalytics.exe
File opened for modification	\??\c:\windows\system\spoolsv.exe	explorer.exe
File opened for modification	\??\c:\windows\system\svchost.exe	spoolsv.exe
File opened for modification	\??\c:\windows\system\explorer.exe	explorer.exe
File opened for modification	\??\c:\windows\system\svchost.exe	svchost.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4388	3abd05cfdb8cd529b9b31dde1719f8f0_NeikiAnalytics.exe
4388	3abd05cfdb8cd529b9b31dde1719f8f0_NeikiAnalytics.exe
232	explorer.exe
232	explorer.exe
232	explorer.exe
232	explorer.exe
232	explorer.exe
232	explorer.exe
232	explorer.exe
232	explorer.exe
5056	svchost.exe
5056	svchost.exe
5056	svchost.exe
5056	svchost.exe
5056	svchost.exe
232	explorer.exe
232	explorer.exe
5056	svchost.exe
232	explorer.exe
5056	svchost.exe
232	explorer.exe
5056	svchost.exe
232	explorer.exe
5056	svchost.exe
232	explorer.exe
5056	svchost.exe
5056	svchost.exe
232	explorer.exe
232	explorer.exe
5056	svchost.exe
232	explorer.exe
5056	svchost.exe
232	explorer.exe
5056	svchost.exe
232	explorer.exe
232	explorer.exe
5056	svchost.exe
5056	svchost.exe
5056	svchost.exe
232	explorer.exe
232	explorer.exe
5056	svchost.exe
232	explorer.exe
5056	svchost.exe
232	explorer.exe
5056	svchost.exe
232	explorer.exe
5056	svchost.exe
232	explorer.exe
5056	svchost.exe
5056	svchost.exe
232	explorer.exe
232	explorer.exe
5056	svchost.exe
5056	svchost.exe
232	explorer.exe
5056	svchost.exe
232	explorer.exe
5056	svchost.exe
232	explorer.exe
232	explorer.exe
5056	svchost.exe
5056	svchost.exe
232	explorer.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
232	explorer.exe
5056	svchost.exe

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
4388	3abd05cfdb8cd529b9b31dde1719f8f0_NeikiAnalytics.exe
4388	3abd05cfdb8cd529b9b31dde1719f8f0_NeikiAnalytics.exe
232	explorer.exe
232	explorer.exe
4852	spoolsv.exe
4852	spoolsv.exe
5056	svchost.exe
5056	svchost.exe
3152	spoolsv.exe
3152	spoolsv.exe
232	explorer.exe
232	explorer.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4388 wrote to memory of 232	4388	3abd05cfdb8cd529b9b31dde1719f8f0_NeikiAnalytics.exe	83
PID 4388 wrote to memory of 232	4388	3abd05cfdb8cd529b9b31dde1719f8f0_NeikiAnalytics.exe	83
PID 4388 wrote to memory of 232	4388	3abd05cfdb8cd529b9b31dde1719f8f0_NeikiAnalytics.exe	83
PID 232 wrote to memory of 4852	232	explorer.exe	84
PID 232 wrote to memory of 4852	232	explorer.exe	84
PID 232 wrote to memory of 4852	232	explorer.exe	84
PID 4852 wrote to memory of 5056	4852	spoolsv.exe	85
PID 4852 wrote to memory of 5056	4852	spoolsv.exe	85
PID 4852 wrote to memory of 5056	4852	spoolsv.exe	85
PID 5056 wrote to memory of 3152	5056	svchost.exe	86
PID 5056 wrote to memory of 3152	5056	svchost.exe	86
PID 5056 wrote to memory of 3152	5056	svchost.exe	86
PID 5056 wrote to memory of 1972	5056	svchost.exe	87
PID 5056 wrote to memory of 1972	5056	svchost.exe	87
PID 5056 wrote to memory of 1972	5056	svchost.exe	87
PID 5056 wrote to memory of 532	5056	svchost.exe	105
PID 5056 wrote to memory of 532	5056	svchost.exe	105
PID 5056 wrote to memory of 532	5056	svchost.exe	105
PID 5056 wrote to memory of 2860	5056	svchost.exe	114
PID 5056 wrote to memory of 2860	5056	svchost.exe	114
PID 5056 wrote to memory of 2860	5056	svchost.exe	114

C:\Users\Admin\AppData\Local\Temp\3abd05cfdb8cd529b9b31dde1719f8f0_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\3abd05cfdb8cd529b9b31dde1719f8f0_NeikiAnalytics.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4388
- \??\c:\windows\system\explorer.exe
  c:\windows\system\explorer.exe
  2⤵
  - Modifies WinLogon for persistence
  - Modifies visiblity of hidden/system files in Explorer
  - Modifies Installed Components in the registry
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:232
- - \??\c:\windows\system\spoolsv.exe
    c:\windows\system\spoolsv.exe SE
    3⤵
    - Executes dropped EXE
    - Drops file in Windows directory
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4852
  - - \??\c:\windows\system\svchost.exe
      c:\windows\system\svchost.exe
      4⤵
      Modifies WinLogon for persistence
      Modifies visiblity of hidden/system files in Explorer
      Modifies Installed Components in the registry
      Executes dropped EXE
      Adds Run key to start application
      Drops file in Windows directory
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:5056
    - - \??\c:\windows\system\spoolsv.exe
        
        c:\windows\system\spoolsv.exe PR
        5⤵
        Executes dropped EXE
        Suspicious use of SetWindowsHookEx
        
        PID:3152
    - - C:\Windows\SysWOW64\at.exe
        
        at 08:22 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
        5⤵
        
        PID:1972
    - - C:\Windows\SysWOW64\at.exe
        
        at 08:23 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
        5⤵
        
        PID:532
    - - C:\Windows\SysWOW64\at.exe
        
        at 08:24 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
        5⤵
        
        PID:2860

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\mrsys.exe

Filesize
66KB

MD5
b6ac75a8977e4d3dcf7cc007ecbd4516

SHA1
29b960d1b7d390c75cc1fdd3e74f3785f15aa510

SHA256
f3a2f5d999b29fc66437ed0c18413c5d65bfe42979502439edc4f12916fb5d4a

SHA512
539de9b20f48a91e5fb10ec89b6e8bcf10066c8bd455e391df97bed54324876d6661d9fc91601a95568b6b369fb3b46d7e32be2556705f0f98072866dbd55c91

Download Submit
C:\Windows\System\explorer.exe

Filesize
66KB

MD5
d6b1902fc528ee983384704dcb1eb8a1

SHA1
26cec7c7db77663eda401b93b8310b863283bd36

SHA256
f1ecbb66d368a1eb8790c6a4982aae7bd3404231f5774fedfa885bc2db62ffc7

SHA512
95b1df2d8dbb76a21446b0a019ee3ff3c1da52423274e6fadf4b679af4b54decc8ca99e40112e661891fbadaec25c483f7ac6349dcab2e280eb820b4d94eb408

Download Submit
C:\Windows\System\spoolsv.exe

Filesize
66KB

MD5
94fa8d99fc1198d9710b19d3a4fa4bff

SHA1
aa2791b97b2dd4c73749a68663a6871687bf397a

SHA256
5042fc8462709adec86b5c0ef8d23bcbe1344cd2141d2661c21ba6525f0bddb2

SHA512
e3b6117ace383f8d5bd89f85303e001e83c2be59b07ee224a6ea79f7758fd92e24ec66c6746e0b1cee6c6979ee72a0e7cc4feff4f2266eb7282ce77c1b046e96

Download Submit
C:\Windows\System\svchost.exe

Filesize
66KB

MD5
dd151438ba3da82a5b3d35c7ac818bc5

SHA1
f1032b962b68a079c7daaf1bc202544222ae0b3d

SHA256
029f884eef0ff22ec5797947337d458f51ae0b078990a5f9bc003ff32cb27323

SHA512
a5949741f14dce67c9f7a1931c24bdb6d0e7f0ee0db33c1762a95bd9ca2b3bc7b8b4846baabe0d2a301e4d9f4b9ac9a6a402e04fd192b3a00716fcb2d2baa9e4

Download Submit
memory/232-68-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/232-58-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/232-13-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/232-14-0x00000000751F0000-0x000000007534D000-memory.dmp

Filesize
1.4MB

Download
memory/232-16-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/3152-51-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/3152-42-0x00000000751F0000-0x000000007534D000-memory.dmp

Filesize
1.4MB

Download
memory/4388-55-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/4388-4-0x0000000000401000-0x000000000042E000-memory.dmp

Filesize
180KB

Download
memory/4388-56-0x0000000000401000-0x000000000042E000-memory.dmp

Filesize
180KB

Download
memory/4388-1-0x00000000001C0000-0x00000000001C4000-memory.dmp

Filesize
16KB

Download
memory/4388-54-0x00000000001C0000-0x00000000001C4000-memory.dmp

Filesize
16KB

Download
memory/4388-2-0x00000000751F0000-0x000000007534D000-memory.dmp

Filesize
1.4MB

Download
memory/4388-3-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/4388-0-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/4852-25-0x00000000751F0000-0x000000007534D000-memory.dmp

Filesize
1.4MB

Download
memory/4852-52-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/5056-36-0x00000000751F0000-0x000000007534D000-memory.dmp

Filesize
1.4MB

Download
memory/5056-35-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/5056-59-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download