88aaf9639354a181b692c59cf0d51001c59d6201b8131ed3499d1f826dab9430

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
26/04/2024, 19:32

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General

Target

2024-04-26_6c93d069c1a8b632f2e92dba4bacce4d_bkransomware_buzus.exe
Size

1.3MB
MD5

6c93d069c1a8b632f2e92dba4bacce4d
SHA1

347d17eb840aa26fcc6cc6b7af3096609fe6c47a
SHA256

88aaf9639354a181b692c59cf0d51001c59d6201b8131ed3499d1f826dab9430
SHA512

3196c14b0617d3bf4e424ed59a557acd031b442bbe0faafd0baf1f2cfc2bffafb5edfc4cea454b340445660129e020c8fd0dc4eabcbba5cbfcd89889505ac519
SSDEEP

24576:KrKqlGCPcJKwybUDwEZZODYmR9G+gnbkk6XRJfe3DqYO/KpLwFfngWX4VmJPakO:KrKo4ZwCOnYjVmJPal

Score

5^/10

Malware Config

Signatures

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2084 set thread context of 1800	2084	2024-04-26_6c93d069c1a8b632f2e92dba4bacce4d_bkransomware_buzus.exe	28

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Internet Explorer\Main	2024-04-26_6c93d069c1a8b632f2e92dba4bacce4d_bkransomware_buzus.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1800	2024-04-26_6c93d069c1a8b632f2e92dba4bacce4d_bkransomware_buzus.exe
1800	2024-04-26_6c93d069c1a8b632f2e92dba4bacce4d_bkransomware_buzus.exe
1800	2024-04-26_6c93d069c1a8b632f2e92dba4bacce4d_bkransomware_buzus.exe
1800	2024-04-26_6c93d069c1a8b632f2e92dba4bacce4d_bkransomware_buzus.exe
1800	2024-04-26_6c93d069c1a8b632f2e92dba4bacce4d_bkransomware_buzus.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2084 wrote to memory of 1800	2084	2024-04-26_6c93d069c1a8b632f2e92dba4bacce4d_bkransomware_buzus.exe	28
PID 2084 wrote to memory of 1800	2084	2024-04-26_6c93d069c1a8b632f2e92dba4bacce4d_bkransomware_buzus.exe	28
PID 2084 wrote to memory of 1800	2084	2024-04-26_6c93d069c1a8b632f2e92dba4bacce4d_bkransomware_buzus.exe	28
PID 2084 wrote to memory of 1800	2084	2024-04-26_6c93d069c1a8b632f2e92dba4bacce4d_bkransomware_buzus.exe	28
PID 2084 wrote to memory of 1800	2084	2024-04-26_6c93d069c1a8b632f2e92dba4bacce4d_bkransomware_buzus.exe	28
PID 2084 wrote to memory of 1800	2084	2024-04-26_6c93d069c1a8b632f2e92dba4bacce4d_bkransomware_buzus.exe	28
PID 2084 wrote to memory of 1800	2084	2024-04-26_6c93d069c1a8b632f2e92dba4bacce4d_bkransomware_buzus.exe	28
PID 2084 wrote to memory of 1800	2084	2024-04-26_6c93d069c1a8b632f2e92dba4bacce4d_bkransomware_buzus.exe	28
PID 2084 wrote to memory of 1800	2084	2024-04-26_6c93d069c1a8b632f2e92dba4bacce4d_bkransomware_buzus.exe	28
PID 2084 wrote to memory of 1800	2084	2024-04-26_6c93d069c1a8b632f2e92dba4bacce4d_bkransomware_buzus.exe	28
PID 2084 wrote to memory of 1800	2084	2024-04-26_6c93d069c1a8b632f2e92dba4bacce4d_bkransomware_buzus.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-26_6c93d069c1a8b632f2e92dba4bacce4d_bkransomware_buzus.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-26_6c93d069c1a8b632f2e92dba4bacce4d_bkransomware_buzus.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2084
- C:\Users\Admin\AppData\Local\Temp\2024-04-26_6c93d069c1a8b632f2e92dba4bacce4d_bkransomware_buzus.exe
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:1800

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1800-10-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/1800-14-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/1800-16-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/1800-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1800-8-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/1800-6-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/1800-4-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/1800-0-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/1800-17-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/1800-2-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/1800-18-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/1800-19-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/1800-20-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/1800-22-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/1800-25-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download