b2ab983ec8f26741677e95ba3f26c413288a865f8cc00e3a61067e8a42fb79fe

Analysis

max time kernel
111s
max time network
121s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2022 15:48

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General

Target

b2ab983ec8f26741677e95ba3f26c413288a865f8cc00e3a61067e8a42fb79fe.exe
Size

2.8MB
MD5

2aa4088717b62dab52cfb867e2b2bc3f
SHA1

e0db44088e21f67c266ac3782f9507cdeb4d1e58
SHA256

b2ab983ec8f26741677e95ba3f26c413288a865f8cc00e3a61067e8a42fb79fe
SHA512

799266fc9856175804a7c7b94206d77babfc82d5796cfd526b7d9464c539e0a838bd64a26e1730ee9d0ac6528aed7f98f291dc7a394cb0dd8db9a3d397450f72
SSDEEP

49152:dQK54yqINtkLBDHGyJZOoW12NprDVP0Osa3NB9bgT37MW5dUlgaw:dN5LqINmNzGyJZmwNprDRya3NH8nulk

Score

8^/10

Malware Config

Signatures

Drops file in Drivers directory 1 IoCs

Processes:

b2ab983ec8f26741677e95ba3f26c413288a865f8cc00e3a61067e8a42fb79fe.exe

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	b2ab983ec8f26741677e95ba3f26c413288a865f8cc00e3a61067e8a42fb79fe.exe

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

System Information Discovery
T1082

Modifies registry class 2 IoCs

Processes:

b2ab983ec8f26741677e95ba3f26c413288a865f8cc00e3a61067e8a42fb79fe.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	b2ab983ec8f26741677e95ba3f26c413288a865f8cc00e3a61067e8a42fb79fe.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	b2ab983ec8f26741677e95ba3f26c413288a865f8cc00e3a61067e8a42fb79fe.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

b2ab983ec8f26741677e95ba3f26c413288a865f8cc00e3a61067e8a42fb79fe.exe

pid	process
3144	b2ab983ec8f26741677e95ba3f26c413288a865f8cc00e3a61067e8a42fb79fe.exe
3144	b2ab983ec8f26741677e95ba3f26c413288a865f8cc00e3a61067e8a42fb79fe.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

b2ab983ec8f26741677e95ba3f26c413288a865f8cc00e3a61067e8a42fb79fe.exe

description pid process

Token: SeDebugPrivilege 3144 b2ab983ec8f26741677e95ba3f26c413288a865f8cc00e3a61067e8a42fb79fe.exe

description	pid	process
Token: SeDebugPrivilege	3144	b2ab983ec8f26741677e95ba3f26c413288a865f8cc00e3a61067e8a42fb79fe.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

b2ab983ec8f26741677e95ba3f26c413288a865f8cc00e3a61067e8a42fb79fe.exe

pid	process
3144	b2ab983ec8f26741677e95ba3f26c413288a865f8cc00e3a61067e8a42fb79fe.exe
3144	b2ab983ec8f26741677e95ba3f26c413288a865f8cc00e3a61067e8a42fb79fe.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

b2ab983ec8f26741677e95ba3f26c413288a865f8cc00e3a61067e8a42fb79fe.exe

description	pid	process	target process
PID 3144 wrote to memory of 4448	3144	b2ab983ec8f26741677e95ba3f26c413288a865f8cc00e3a61067e8a42fb79fe.exe	cmd.exe
PID 3144 wrote to memory of 4448	3144	b2ab983ec8f26741677e95ba3f26c413288a865f8cc00e3a61067e8a42fb79fe.exe	cmd.exe
PID 3144 wrote to memory of 4448	3144	b2ab983ec8f26741677e95ba3f26c413288a865f8cc00e3a61067e8a42fb79fe.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\b2ab983ec8f26741677e95ba3f26c413288a865f8cc00e3a61067e8a42fb79fe.exe
"C:\Users\Admin\AppData\Local\Temp\b2ab983ec8f26741677e95ba3f26c413288a865f8cc00e3a61067e8a42fb79fe.exe"
1⤵
- Drops file in Drivers directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3144

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd /c rd "C:\Windows\system32\drivers\etcjb13F" /S /Q
2⤵
PID:4448

Network

MITRE ATT&CK Enterprise v6

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

memory/3144-138-0x0000000000400000-0x00000000007C8000-memory.dmp

Filesize
3.8MB

Download
memory/3144-133-0x0000000000400000-0x00000000007C8000-memory.dmp

Filesize
3.8MB

Download
memory/3144-134-0x0000000000400000-0x00000000007C8000-memory.dmp

Filesize
3.8MB

Download
memory/3144-135-0x0000000000400000-0x00000000007C8000-memory.dmp

Filesize
3.8MB

Download
memory/3144-136-0x0000000000400000-0x00000000007C8000-memory.dmp

Filesize
3.8MB

Download
memory/3144-137-0x0000000000400000-0x00000000007C8000-memory.dmp

Filesize
3.8MB

Download
memory/3144-132-0x0000000000400000-0x00000000007C8000-memory.dmp

Filesize
3.8MB

Download
memory/3144-139-0x0000000000400000-0x00000000007C8000-memory.dmp

Filesize
3.8MB

Download
memory/3144-140-0x0000000000400000-0x00000000007C8000-memory.dmp

Filesize
3.8MB

Download
memory/3144-141-0x0000000000400000-0x00000000007C8000-memory.dmp

Filesize
3.8MB

Download
memory/3144-143-0x0000000000400000-0x00000000007C8000-memory.dmp

Filesize
3.8MB

Download
memory/3144-144-0x0000000000400000-0x00000000007C8000-memory.dmp

Filesize
3.8MB

Download
memory/4448-142-0x0000000000000000-mapping.dmp

Download