bazarloader | 1ef3c50af23d5d9d98c27c12eeee05f026d0147e7c5f162c2bc9cf28783b457a

General

Target

388aa9feb123c52cad7f72d99f0d16fc.dll
Size

1.3MB
MD5

388aa9feb123c52cad7f72d99f0d16fc
SHA1

cbfd0d729d1144517dd954180bac7541199b2fd5
SHA256

1ef3c50af23d5d9d98c27c12eeee05f026d0147e7c5f162c2bc9cf28783b457a
SHA512

97e07b53241635f4b4426a455db6a1cdb7ba9924e3a6012025a20bbfc09b4d4db8c7d8902e3a945b3e50bfbe72eb36c2c13cea04f8c9abf664d1768198b4a9a6
SSDEEP

24576:ax12nIqqCgOgFO9fccuUMHKv+i7e1LXEdFoGzIyXjxeKO:aYIqJPV9fcHqmGSr9oO

Score

10^/10

bazarloader dropper loader persistence

Malware Config

Signatures

Bazar Loader
Detected loader normally used to deploy BazarBackdoor malware.
loader dropper bazarloader

Bazar/Team9 Loader payload 7 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2732-0-0x00000000282C0000-0x0000000028324000-memory.dmp	BazarLoaderVar3
behavioral2/memory/2732-1-0x00007FFA9BEA0000-0x00007FFA9C042000-memory.dmp	BazarLoaderVar3
behavioral2/memory/2732-7-0x00007FFA9BEA0000-0x00007FFA9C042000-memory.dmp	BazarLoaderVar3
behavioral2/memory/2732-8-0x00000000282C0000-0x0000000028324000-memory.dmp	BazarLoaderVar3
behavioral2/memory/1516-9-0x00000000282D0000-0x0000000028334000-memory.dmp	BazarLoaderVar3
behavioral2/memory/1516-10-0x00007FFA9BEA0000-0x00007FFA9C042000-memory.dmp	BazarLoaderVar3
behavioral2/memory/1516-18-0x00007FFA9BEA0000-0x00007FFA9C042000-memory.dmp	BazarLoaderVar3

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RealtechUpdate = "\"C:\\Windows\\system32\\regsvr32.exe\" /s \"C:\\Users\\Admin\\AppData\\Local\\Temp\\Damp\\kgurjdi.exe\" mscp arih"	reg.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

reg.exe

pid process

2632 reg.exe
Runs ping.exe 1 TTPs 2 IoCs

Remote System Discovery
T1018

Processes:

PING.EXEPING.EXE

pid process

2748 PING.EXE
3136 PING.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

regsvr32.exe

pid process

1516 regsvr32.exe
1516 regsvr32.exe

pid	process
2632	reg.exe

pid	process
2748	PING.EXE
3136	PING.EXE

pid	process
1516	regsvr32.exe
1516	regsvr32.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

regsvr32.execmd.exeregsvr32.execmd.execmd.exe

description	pid	process	target process
PID 2732 wrote to memory of 1416	2732	regsvr32.exe	cmd.exe
PID 2732 wrote to memory of 1416	2732	regsvr32.exe	cmd.exe
PID 1416 wrote to memory of 2748	1416	cmd.exe	PING.EXE
PID 1416 wrote to memory of 2748	1416	cmd.exe	PING.EXE
PID 1416 wrote to memory of 1516	1416	cmd.exe	regsvr32.exe
PID 1416 wrote to memory of 1516	1416	cmd.exe	regsvr32.exe
PID 1516 wrote to memory of 2388	1516	regsvr32.exe	cmd.exe
PID 1516 wrote to memory of 2388	1516	regsvr32.exe	cmd.exe
PID 1516 wrote to memory of 3800	1516	regsvr32.exe	cmd.exe
PID 1516 wrote to memory of 3800	1516	regsvr32.exe	cmd.exe
PID 1516 wrote to memory of 3720	1516	regsvr32.exe	cmd.exe
PID 1516 wrote to memory of 3720	1516	regsvr32.exe	cmd.exe
PID 3720 wrote to memory of 3136	3720	cmd.exe	PING.EXE
PID 3720 wrote to memory of 3136	3720	cmd.exe	PING.EXE
PID 3800 wrote to memory of 2632	3800	cmd.exe	reg.exe
PID 3800 wrote to memory of 2632	3800	cmd.exe	reg.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\388aa9feb123c52cad7f72d99f0d16fc.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2732
- C:\Windows\system32\cmd.exe
  cmd /c ping 127.0.0.1 -n 8 & "C:\Windows\system32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\388aa9feb123c52cad7f72d99f0d16fc.dll" mscp ahis & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1416
- - C:\Windows\system32\PING.EXE
    ping 127.0.0.1 -n 8
    3⤵
    - Runs ping.exe
    PID:2748
- - C:\Windows\system32\regsvr32.exe
    "C:\Windows\system32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\388aa9feb123c52cad7f72d99f0d16fc.dll" mscp ahis
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:1516
  - - C:\Windows\system32\cmd.exe
      cmd.exe /c echo %temp%
      4⤵
      PID:2388
  - - C:\Windows\system32\cmd.exe
      cmd.exe /c reg.exe add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v RealtechUpdate /t REG_SZ /d "\"C:\Windows\system32\regsvr32.exe\" /s \"C:\Users\Admin\AppData\Local\Temp\Damp\kgurjdi.exe\" mscp arih"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:3800
    - - C:\Windows\system32\reg.exe
        
        reg.exe add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v RealtechUpdate /t REG_SZ /d "\"C:\Windows\system32\regsvr32.exe\" /s \"C:\Users\Admin\AppData\Local\Temp\Damp\kgurjdi.exe\" mscp arih"
        5⤵
        Adds Run key to start application
        Modifies registry key
        
        PID:2632
  - - C:\Windows\system32\cmd.exe
      cmd /c ping 127.0.0.1 -n 8 & "C:\Windows\system32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\Damp\kgurjdi.exe" mscp arih & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:3720
    - - C:\Windows\system32\PING.EXE
        
        ping 127.0.0.1 -n 8
        5⤵
        Runs ping.exe
        
        PID:3136

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Remote System Discovery

1

T1018

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1516-9-0x00000000282D0000-0x0000000028334000-memory.dmp

Filesize
400KB

Download
memory/1516-10-0x00007FFA9BEA0000-0x00007FFA9C042000-memory.dmp

Filesize
1.6MB

Download
memory/1516-18-0x00007FFA9BEA0000-0x00007FFA9C042000-memory.dmp

Filesize
1.6MB

Download
memory/1516-19-0x00000000282D0000-0x0000000028334000-memory.dmp

Filesize
400KB

Download
memory/2732-0-0x00000000282C0000-0x0000000028324000-memory.dmp

Filesize
400KB

Download
memory/2732-1-0x00007FFA9BEA0000-0x00007FFA9C042000-memory.dmp

Filesize
1.6MB

Download
memory/2732-7-0x00007FFA9BEA0000-0x00007FFA9C042000-memory.dmp

Filesize
1.6MB

Download
memory/2732-8-0x00000000282C0000-0x0000000028324000-memory.dmp

Filesize
400KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads