bazarloader | 9fdec91231fe3a709c8d4ec39e25ce8c55282167c561b14917b52701494ac269

Analysis

max time kernel
129s
max time network
136s
platform
windows10-1703_x64
resource
win10-20240611-uk
resource tags

arch:x64arch:x86image:win10-20240611-uklocale:uk-uaos:windows10-1703-x64systemwindows
submitted
04-10-2024 09:40

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General

Target

Attachments.lnk
Size

1KB
MD5

e87e52db1aa360baf8444c5524dd2b26
SHA1

b89d0c4568c74f03ec3e1917c22a83c37409b10a
SHA256

6497223d35530f2e510382aa1866b83ffaf215213b8080b7ecb299b6e7e3e6b1
SHA512

e93d7808c29ec45569382ee5bd2f50a41c0cf1c1d2cbb909d5aec2abf166f0ad87b672eaa4a1c00b28eb31faf55f1a254d8ab842bcb4d22dd750b26926e7c64a

Score

10^/10

bazarloader dropper loader

Malware Config

Signatures

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

Bazar/Team9 Loader payload 1 IoCs

resource	yara_rule
behavioral1/memory/4652-5-0x0000000180000000-0x000000018003D000-memory.dmp	BazarLoaderVar5

Loads dropped DLL 1 IoCs

pid	Process
4652	rundll32.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3308 wrote to memory of 4948	3308	cmd.exe	71
PID 3308 wrote to memory of 4948	3308	cmd.exe	71
PID 4948 wrote to memory of 4164	4948	cmd.exe	72
PID 4948 wrote to memory of 4164	4948	cmd.exe	72
PID 4948 wrote to memory of 4652	4948	cmd.exe	73
PID 4948 wrote to memory of 4652	4948	cmd.exe	73

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Attachments.lnk
1⤵
- Suspicious use of WriteProcessMemory
PID:3308
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c xcopy /y DumpStack.log c:\programdata\ && C:\Windows\System32\rundll32.exe C:\programdata\DumpStack.log,spload && exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4948
- - C:\Windows\system32\xcopy.exe
    xcopy /y DumpStack.log c:\programdata\
    3⤵
    PID:4164
- - C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\programdata\DumpStack.log,spload
    3⤵
    - Loads dropped DLL
    PID:4652

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\programdata\DumpStack.log

Filesize
217KB

MD5
f7047fdbd3cd218b55cf4e2d6b9fb4f0

SHA1
a9c1e9a78934c9cfa2dbb6562ca8cdb9d67bbb05

SHA256
4bc9368951402ceeeb84da58c82e02a4ea9e09f5a4425daf5094ea5d87a14e9a

SHA512
950f4bde7f04a581496df019719074fa4516ce0bd7ace547a77bbb069467816b4c42236b6f23c4fd476ac74c907fa764861c9422c832c7910ed651b6445138f1

Download Submit
memory/4652-5-0x0000000180000000-0x000000018003D000-memory.dmp

Filesize
244KB

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