f2c21f75e7c047ba228a6409eeb71f47a2423ac59bf741ad76d84b7b7966d7de

Analysis

max time kernel
276s
max time network
325s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
28-11-2022 00:19

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General

Target

f2c21f75e7c047ba228a6409eeb71f47a2423ac59bf741ad76d84b7b7966d7de.exe
Size

512KB
MD5

0bb601bee05d04a9502126419085d10f
SHA1

e5028c5704b86a309bba915da132cf1009555cb4
SHA256

f2c21f75e7c047ba228a6409eeb71f47a2423ac59bf741ad76d84b7b7966d7de
SHA512

237dec07adc46c82a37b7df7e4672e3ed099f35a5181d0a60d858cda66e9317993de05ad07b170e848621339c5648557f89fdfe991208238f7731c3ac97fae53
SSDEEP

12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4W:0+h9OY70z+warul3E4W

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__	f2c21f75e7c047ba228a6409eeb71f47a2423ac59bf741ad76d84b7b7966d7de.exe

Executes dropped EXE 1 IoCs

pid	Process
3196	s5036.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	f2c21f75e7c047ba228a6409eeb71f47a2423ac59bf741ad76d84b7b7966d7de.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	f2c21f75e7c047ba228a6409eeb71f47a2423ac59bf741ad76d84b7b7966d7de.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	f2c21f75e7c047ba228a6409eeb71f47a2423ac59bf741ad76d84b7b7966d7de.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4892	f2c21f75e7c047ba228a6409eeb71f47a2423ac59bf741ad76d84b7b7966d7de.exe
4892	f2c21f75e7c047ba228a6409eeb71f47a2423ac59bf741ad76d84b7b7966d7de.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4892 wrote to memory of 3196	4892	f2c21f75e7c047ba228a6409eeb71f47a2423ac59bf741ad76d84b7b7966d7de.exe	81
PID 4892 wrote to memory of 3196	4892	f2c21f75e7c047ba228a6409eeb71f47a2423ac59bf741ad76d84b7b7966d7de.exe	81

C:\Users\Admin\AppData\Local\Temp\f2c21f75e7c047ba228a6409eeb71f47a2423ac59bf741ad76d84b7b7966d7de.exe
"C:\Users\Admin\AppData\Local\Temp\f2c21f75e7c047ba228a6409eeb71f47a2423ac59bf741ad76d84b7b7966d7de.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:4892
- C:\Users\Admin\AppData\Local\Temp\n5036\s5036.exe
  "C:\Users\Admin\AppData\Local\Temp\n5036\s5036.exe" af01eed7a04f89173aaa839bpQBhQDDuo1xp/MGcZXMwznMtCJHapNSTXn0GVVce14WAX8/paX64Myhr3/2JVxOgbSbBkH9PRMy2vVEBp/T6lT85o7RiETmTtjqZ4zoTWE3tFrambVdPlARvyDIwH6G2ffB9aSSAcxQ9fOTqXfwN9D0= /v "C:\Users\Admin\AppData\Local\Temp\f2c21f75e7c047ba228a6409eeb71f47a2423ac59bf741ad76d84b7b7966d7de.exe"
  2⤵
  - Executes dropped EXE
  PID:3196

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\n5036\s5036.exe

Filesize
230KB

MD5
abaf13cb23de482dc944ab5b51ca3aac

SHA1
76837356db96dd56b647aba60f1adbbdc7b200fe

SHA256
b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

SHA512
cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

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C:\Users\Admin\AppData\Local\Temp\n5036\s5036.exe

Filesize
230KB

MD5
abaf13cb23de482dc944ab5b51ca3aac

SHA1
76837356db96dd56b647aba60f1adbbdc7b200fe

SHA256
b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

SHA512
cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

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