f655481213b7e42df2c9e51859ce97bf92c643e72025ad44585b7d95f9ef7416

Analysis

max time kernel
156s
max time network
159s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
18/10/2022, 21:40

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General

Target

f655481213b7e42df2c9e51859ce97bf92c643e72025ad44585b7d95f9ef7416.exe
Size

4KB
MD5

972dee10155065deec4af9d309c12f8e
SHA1

25d240196ec1ec18413ee385c23330c30d624215
SHA256

f655481213b7e42df2c9e51859ce97bf92c643e72025ad44585b7d95f9ef7416
SHA512

0be42e14492faecf758e8f632f7623b2367af3a64b5283a498707b2c599b5d9e5bf1ab938fd0ec2f6486b2e8a16b529002ea6116d08762d140a82ac5c732971d
SSDEEP

96:ZRQ3j6cInZq4wnumwC4sbCND+qPoYL3YOEDRLxB0:zQ3FR4wnzisbCBNPd85RlB0

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4656	bvvcb.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	f655481213b7e42df2c9e51859ce97bf92c643e72025ad44585b7d95f9ef7416.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4020 wrote to memory of 4656	4020	f655481213b7e42df2c9e51859ce97bf92c643e72025ad44585b7d95f9ef7416.exe	81
PID 4020 wrote to memory of 4656	4020	f655481213b7e42df2c9e51859ce97bf92c643e72025ad44585b7d95f9ef7416.exe	81
PID 4020 wrote to memory of 4656	4020	f655481213b7e42df2c9e51859ce97bf92c643e72025ad44585b7d95f9ef7416.exe	81

C:\Users\Admin\AppData\Local\Temp\f655481213b7e42df2c9e51859ce97bf92c643e72025ad44585b7d95f9ef7416.exe
"C:\Users\Admin\AppData\Local\Temp\f655481213b7e42df2c9e51859ce97bf92c643e72025ad44585b7d95f9ef7416.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4020
- C:\Users\Admin\AppData\Local\Temp\bvvcb.exe
  "C:\Users\Admin\AppData\Local\Temp\bvvcb.exe"
  2⤵
  - Executes dropped EXE
  PID:4656

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

C:\Users\Admin\AppData\Local\Temp\bvvcb.exe

Filesize
5KB

MD5
e97821b6e84d537901d9dcc39f437ad1

SHA1
f32f20e4346308d96fdfff1e86ec9ec0b672fb52

SHA256
a7b89e4feb43bd0f11236420d7775b25b08461ef87aae6c848c3a050718ea7ea

SHA512
98da91699dee6e543a55472a8f257ddd05b8d91b9821cd07f6f2cba2e5ba335142834ffb4ce3e2dc8acc0242260ef62b550df5fdbeb173783d2e3ee1be7b5209

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C:\Users\Admin\AppData\Local\Temp\bvvcb.exe

Filesize
5KB

MD5
e97821b6e84d537901d9dcc39f437ad1

SHA1
f32f20e4346308d96fdfff1e86ec9ec0b672fb52

SHA256
a7b89e4feb43bd0f11236420d7775b25b08461ef87aae6c848c3a050718ea7ea

SHA512
98da91699dee6e543a55472a8f257ddd05b8d91b9821cd07f6f2cba2e5ba335142834ffb4ce3e2dc8acc0242260ef62b550df5fdbeb173783d2e3ee1be7b5209

Download Submit