2c26f5e4d8dbc8a4c939b406a4e0f37ea305aae7c347741d4d9bc52d83fd59be

Analysis

max time kernel
336s
max time network
381s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
27/11/2022, 19:55

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General

Target

2c26f5e4d8dbc8a4c939b406a4e0f37ea305aae7c347741d4d9bc52d83fd59be.exe
Size

512KB
MD5

a331bd411ef9ec4e3bb8827be2f42360
SHA1

431ee0b5943c1fb0b4c8857616df744c3058f439
SHA256

2c26f5e4d8dbc8a4c939b406a4e0f37ea305aae7c347741d4d9bc52d83fd59be
SHA512

c4204071caef4c19e015488e01a845141b1242f1c55fae616f5b85859bba9880e0393485ddc3d4847f0bc872773bd5d0ea9fb60a0ce64a5d01982fe18238b353
SSDEEP

12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4G:0+h9OY70z+warul3E4G

Score

9^/10

evasion

Malware Config

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	2c26f5e4d8dbc8a4c939b406a4e0f37ea305aae7c347741d4d9bc52d83fd59be.exe

Executes dropped EXE 1 IoCs

pid	Process
3812	s1655.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-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation	2c26f5e4d8dbc8a4c939b406a4e0f37ea305aae7c347741d4d9bc52d83fd59be.exe

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

System Information Discovery
T1082

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	2c26f5e4d8dbc8a4c939b406a4e0f37ea305aae7c347741d4d9bc52d83fd59be.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	2c26f5e4d8dbc8a4c939b406a4e0f37ea305aae7c347741d4d9bc52d83fd59be.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3808	2c26f5e4d8dbc8a4c939b406a4e0f37ea305aae7c347741d4d9bc52d83fd59be.exe
3808	2c26f5e4d8dbc8a4c939b406a4e0f37ea305aae7c347741d4d9bc52d83fd59be.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3808 wrote to memory of 3812	3808	2c26f5e4d8dbc8a4c939b406a4e0f37ea305aae7c347741d4d9bc52d83fd59be.exe	86
PID 3808 wrote to memory of 3812	3808	2c26f5e4d8dbc8a4c939b406a4e0f37ea305aae7c347741d4d9bc52d83fd59be.exe	86

C:\Users\Admin\AppData\Local\Temp\2c26f5e4d8dbc8a4c939b406a4e0f37ea305aae7c347741d4d9bc52d83fd59be.exe
"C:\Users\Admin\AppData\Local\Temp\2c26f5e4d8dbc8a4c939b406a4e0f37ea305aae7c347741d4d9bc52d83fd59be.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks computer location settings
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3808
- C:\Users\Admin\AppData\Local\Temp\n1655\s1655.exe
  "C:\Users\Admin\AppData\Local\Temp\n1655\s1655.exe" b9243d6303ef40b4273173b1/2SvBBvc8e2doGA0TYxVNN6Z3A3VhZ2vOmC+wsPZHuf/Ut+ibIPaUPp11IsE8mfbBFokt30hncIz8UvoOCkBn4N/tGGS/7wf0c06IYhSLOWNisjXHbCgJsTlxFz/UEGKV3stnruAmkTULfvZ8Gz+2MHw /v "C:\Users\Admin\AppData\Local\Temp\2c26f5e4d8dbc8a4c939b406a4e0f37ea305aae7c347741d4d9bc52d83fd59be.exe"
  2⤵
  - Executes dropped EXE
  PID:3812

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\n1655\s1655.exe

Filesize
230KB

MD5
abaf13cb23de482dc944ab5b51ca3aac

SHA1
76837356db96dd56b647aba60f1adbbdc7b200fe

SHA256
b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

SHA512
cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

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C:\Users\Admin\AppData\Local\Temp\n1655\s1655.exe

Filesize
230KB

MD5
abaf13cb23de482dc944ab5b51ca3aac

SHA1
76837356db96dd56b647aba60f1adbbdc7b200fe

SHA256
b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

SHA512
cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

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