078bf6fad81012be297caf2e1dc968b46013d59a530e02d4f1045b40f6a5d8de

Analysis

max time kernel
197s
max time network
236s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
24-11-2022 00:28

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General

Target

078bf6fad81012be297caf2e1dc968b46013d59a530e02d4f1045b40f6a5d8de.exe
Size

703KB
MD5

cac2bd81251cee7a5e5d5e06210bc9ec
SHA1

7ce442841a27ae9f3500909bbea70895bd3d456b
SHA256

078bf6fad81012be297caf2e1dc968b46013d59a530e02d4f1045b40f6a5d8de
SHA512

465c29ddafa10c7a86d615ec8130a50d0e39ea41721e5bfee49d4674c931659520622c21613d6680932276314ac50c676fcd5d28905388cd48a90f6a6aeb811a
SSDEEP

1536:cd04boUzdIBsZUpUQSe1sjL/91IqmM4nouy8:cdJboUpEsueFssP11I5Mwout

Score

8^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

winlogon.exe

pid process

4276 winlogon.exe

pid	process
4276	winlogon.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral2/memory/1824-132-0x0000000000400000-0x0000000000447000-memory.dmp	upx
C:\Users\Admin\E696D64614\winlogon.exe	upx
behavioral2/memory/1824-138-0x0000000000400000-0x0000000000447000-memory.dmp	upx
C:\Users\Admin\E696D64614\winlogon.exe	upx
behavioral2/memory/4276-141-0x0000000000400000-0x0000000000447000-memory.dmp	upx

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

Processes:

078bf6fad81012be297caf2e1dc968b46013d59a530e02d4f1045b40f6a5d8de.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	078bf6fad81012be297caf2e1dc968b46013d59a530e02d4f1045b40f6a5d8de.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 SetWindowsHookEx 2 IoCs

Processes:

078bf6fad81012be297caf2e1dc968b46013d59a530e02d4f1045b40f6a5d8de.exewinlogon.exe

pid process

1824 078bf6fad81012be297caf2e1dc968b46013d59a530e02d4f1045b40f6a5d8de.exe
4276 winlogon.exe

pid	process
1824	078bf6fad81012be297caf2e1dc968b46013d59a530e02d4f1045b40f6a5d8de.exe
4276	winlogon.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

078bf6fad81012be297caf2e1dc968b46013d59a530e02d4f1045b40f6a5d8de.exe

description	pid	process	target process
PID 1824 wrote to memory of 4276	1824	078bf6fad81012be297caf2e1dc968b46013d59a530e02d4f1045b40f6a5d8de.exe	winlogon.exe
PID 1824 wrote to memory of 4276	1824	078bf6fad81012be297caf2e1dc968b46013d59a530e02d4f1045b40f6a5d8de.exe	winlogon.exe
PID 1824 wrote to memory of 4276	1824	078bf6fad81012be297caf2e1dc968b46013d59a530e02d4f1045b40f6a5d8de.exe	winlogon.exe

C:\Users\Admin\AppData\Local\Temp\078bf6fad81012be297caf2e1dc968b46013d59a530e02d4f1045b40f6a5d8de.exe
"C:\Users\Admin\AppData\Local\Temp\078bf6fad81012be297caf2e1dc968b46013d59a530e02d4f1045b40f6a5d8de.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1824

C:\Users\Admin\E696D64614\winlogon.exe
"C:\Users\Admin\E696D64614\winlogon.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:4276

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\E696D64614\winlogon.exe
Filesize
703KB

MD5
cac2bd81251cee7a5e5d5e06210bc9ec

SHA1
7ce442841a27ae9f3500909bbea70895bd3d456b

SHA256
078bf6fad81012be297caf2e1dc968b46013d59a530e02d4f1045b40f6a5d8de

SHA512
465c29ddafa10c7a86d615ec8130a50d0e39ea41721e5bfee49d4674c931659520622c21613d6680932276314ac50c676fcd5d28905388cd48a90f6a6aeb811a

Download Submit
C:\Users\Admin\E696D64614\winlogon.exe
Filesize
703KB

MD5
cac2bd81251cee7a5e5d5e06210bc9ec

SHA1
7ce442841a27ae9f3500909bbea70895bd3d456b

SHA256
078bf6fad81012be297caf2e1dc968b46013d59a530e02d4f1045b40f6a5d8de

SHA512
465c29ddafa10c7a86d615ec8130a50d0e39ea41721e5bfee49d4674c931659520622c21613d6680932276314ac50c676fcd5d28905388cd48a90f6a6aeb811a

Download Submit
memory/1824-132-0x0000000000400000-0x0000000000447000-memory.dmp

Filesize
284KB

Download
memory/1824-138-0x0000000000400000-0x0000000000447000-memory.dmp

Filesize
284KB

Download
memory/4276-135-0x0000000000000000-mapping.dmp

Download
memory/4276-141-0x0000000000400000-0x0000000000447000-memory.dmp

Filesize
284KB

Download