db3af571f06fabfbbf6420bbefd4fac2b0b42e30b430e8740ba6a25bfe1d4ba2

Analysis

max time kernel
44s
max time network
50s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
19-10-2022 21:32

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General

Target

db3af571f06fabfbbf6420bbefd4fac2b0b42e30b430e8740ba6a25bfe1d4ba2.exe
Size

150KB
MD5

919b2b1b92e8b165ef29740134b74cf0
SHA1

88dbc8d1fa65461552b8b7166cd4f83887535ce7
SHA256

db3af571f06fabfbbf6420bbefd4fac2b0b42e30b430e8740ba6a25bfe1d4ba2
SHA512

444f38e0a70ea275c37ab9f6776f94cd18bbd9a061d284ac014970c4f97092d226d0c8fe970667b3a28449c936bff67e43a1766bf1a5fb28b727e9c421d6cd8b
SSDEEP

768:hk33Rdt3vQBofYJaX2P8fojSgwFXdOL+vYhSw5fmWfgOFQWbHo7me/c7yA50o:hknRdt3vqoaxqo/wJdMQ2NmQbFQfHcJ

Score

10^/10

Malware Config

Extracted

Credentials

Protocol: ftp
Host:
arsensteller1.ucoz.ua
Port:
21
Username:
aarsensteller1
Password:
01072000a

Signatures

Checks BIOS information in registry 2 TTPs 1 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	db3af571f06fabfbbf6420bbefd4fac2b0b42e30b430e8740ba6a25bfe1d4ba2.exe

Deletes itself 1 IoCs

pid	Process
432	cmd.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1444	db3af571f06fabfbbf6420bbefd4fac2b0b42e30b430e8740ba6a25bfe1d4ba2.exe
1444	db3af571f06fabfbbf6420bbefd4fac2b0b42e30b430e8740ba6a25bfe1d4ba2.exe
1444	db3af571f06fabfbbf6420bbefd4fac2b0b42e30b430e8740ba6a25bfe1d4ba2.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1444 wrote to memory of 432	1444	db3af571f06fabfbbf6420bbefd4fac2b0b42e30b430e8740ba6a25bfe1d4ba2.exe	28
PID 1444 wrote to memory of 432	1444	db3af571f06fabfbbf6420bbefd4fac2b0b42e30b430e8740ba6a25bfe1d4ba2.exe	28
PID 1444 wrote to memory of 432	1444	db3af571f06fabfbbf6420bbefd4fac2b0b42e30b430e8740ba6a25bfe1d4ba2.exe	28
PID 1444 wrote to memory of 432	1444	db3af571f06fabfbbf6420bbefd4fac2b0b42e30b430e8740ba6a25bfe1d4ba2.exe	28

C:\Users\Admin\AppData\Local\Temp\db3af571f06fabfbbf6420bbefd4fac2b0b42e30b430e8740ba6a25bfe1d4ba2.exe
"C:\Users\Admin\AppData\Local\Temp\db3af571f06fabfbbf6420bbefd4fac2b0b42e30b430e8740ba6a25bfe1d4ba2.exe"
1⤵
- Checks BIOS information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1444
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del "C:\Users\Admin\AppData\Local\Temp\db3af571f06fabfbbf6420bbefd4fac2b0b42e30b430e8740ba6a25bfe1d4ba2.exe" >> NUL
  2⤵
  - Deletes itself
  PID:432

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1444-54-0x0000000075D71000-0x0000000075D73000-memory.dmp

Filesize
8KB

Download
memory/1444-55-0x0000000000400000-0x000000000048A000-memory.dmp

Filesize
552KB

Download
memory/1444-57-0x0000000000400000-0x000000000048A000-memory.dmp

Filesize
552KB

Download