bazarloader | 1ef3c50af23d5d9d98c27c12eeee05f026d0147e7c5f162c2bc9cf28783b457a

Analysis

max time kernel
143s
max time network
137s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
31-12-2023 13:45

Target

388aa9feb123c52cad7f72d99f0d16fc.dll
Size

1.3MB
MD5

388aa9feb123c52cad7f72d99f0d16fc
SHA1

cbfd0d729d1144517dd954180bac7541199b2fd5
SHA256

1ef3c50af23d5d9d98c27c12eeee05f026d0147e7c5f162c2bc9cf28783b457a
SHA512

97e07b53241635f4b4426a455db6a1cdb7ba9924e3a6012025a20bbfc09b4d4db8c7d8902e3a945b3e50bfbe72eb36c2c13cea04f8c9abf664d1768198b4a9a6
SSDEEP

24576:ax12nIqqCgOgFO9fccuUMHKv+i7e1LXEdFoGzIyXjxeKO:aYIqJPV9fcHqmGSr9oO

Score

10^/10

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

Bazar/Team9 Loader payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1684-0-0x0000000001E60000-0x0000000001EC4000-memory.dmp	BazarLoaderVar3
behavioral1/memory/1684-1-0x000007FEF6130000-0x000007FEF62D2000-memory.dmp	BazarLoaderVar3
behavioral1/memory/1684-6-0x000007FEF6130000-0x000007FEF62D2000-memory.dmp	BazarLoaderVar3
behavioral1/memory/1684-7-0x0000000001E60000-0x0000000001EC4000-memory.dmp	BazarLoaderVar3
behavioral1/memory/1952-8-0x0000000001E80000-0x0000000001EE4000-memory.dmp	BazarLoaderVar3
behavioral1/memory/1952-9-0x000007FEF5F80000-0x000007FEF6122000-memory.dmp	BazarLoaderVar3

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

2684 PING.EXE
Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs

Processes:

regsvr32.exe

pid process

1952 regsvr32.exe

pid	process
2684	PING.EXE

pid	process
1952	regsvr32.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

regsvr32.execmd.exe

description	pid	process	target process
PID 1684 wrote to memory of 2576	1684	regsvr32.exe	cmd.exe
PID 1684 wrote to memory of 2576	1684	regsvr32.exe	cmd.exe
PID 1684 wrote to memory of 2576	1684	regsvr32.exe	cmd.exe
PID 2576 wrote to memory of 2684	2576	cmd.exe	PING.EXE
PID 2576 wrote to memory of 2684	2576	cmd.exe	PING.EXE
PID 2576 wrote to memory of 2684	2576	cmd.exe	PING.EXE
PID 2576 wrote to memory of 1952	2576	cmd.exe	regsvr32.exe
PID 2576 wrote to memory of 1952	2576	cmd.exe	regsvr32.exe
PID 2576 wrote to memory of 1952	2576	cmd.exe	regsvr32.exe
PID 2576 wrote to memory of 1952	2576	cmd.exe	regsvr32.exe
PID 2576 wrote to memory of 1952	2576	cmd.exe	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\388aa9feb123c52cad7f72d99f0d16fc.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1684
- 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:2576
- - C:\Windows\system32\PING.EXE
    ping 127.0.0.1 -n 8
    3⤵
    - Runs ping.exe
    PID:2684
- - C:\Windows\system32\regsvr32.exe
    "C:\Windows\system32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\388aa9feb123c52cad7f72d99f0d16fc.dll" mscp ahis
    3⤵
    - Suspicious behavior: CmdExeWriteProcessMemorySpam
    PID:1952

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Remote System Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

memory/1684-0-0x0000000001E60000-0x0000000001EC4000-memory.dmp

Filesize
400KB

Download
memory/1684-1-0x000007FEF6130000-0x000007FEF62D2000-memory.dmp

Filesize
1.6MB

Download
memory/1684-6-0x000007FEF6130000-0x000007FEF62D2000-memory.dmp

Filesize
1.6MB

Download
memory/1684-7-0x0000000001E60000-0x0000000001EC4000-memory.dmp

Filesize
400KB

Download
memory/1952-8-0x0000000001E80000-0x0000000001EE4000-memory.dmp

Filesize
400KB

Download
memory/1952-9-0x000007FEF5F80000-0x000007FEF6122000-memory.dmp

Filesize
1.6MB

Download