a20976535844ca1c62cf87b4be4ce5c81dd877fb851a2411bf16b7fc09a185e3

Analysis

max time kernel
3s
max time network
65s
platform
windows10-2004_x64
resource
win10v2004-20230831-en
resource tags

arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system
submitted
03/09/2023, 11:36

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General

Target

2023-08-22_ad44f443f64a06c8c6336d59ef9d12e9_cryptolocker_JC.exe
Size

97KB
MD5

ad44f443f64a06c8c6336d59ef9d12e9
SHA1

eb187f5d39c47dac4375610d2d92be9137c07c5e
SHA256

a20976535844ca1c62cf87b4be4ce5c81dd877fb851a2411bf16b7fc09a185e3
SHA512

d5a02622491ec95b5538d04e2622c0d03cf8be84aa66c7478a5e050d642e28747858e6e712ea811425aca71bf37d59cabf6e7f49a5ecfdc75b39c01e670249c7
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgpwqWsvikF3:AnBdOOtEvwDpj6zk

Score

7^/10

upx

Malware Config

Signatures

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-1-5-21-528036852-1341495193-1175965888-1000\Control Panel\International\Geo\Nation	2023-08-22_ad44f443f64a06c8c6336d59ef9d12e9_cryptolocker_JC.exe

Executes dropped EXE 1 IoCs

pid	Process
3164	asih.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/692-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/files/0x000a000000023109-13.dat	upx
behavioral2/files/0x000a000000023109-15.dat	upx
behavioral2/memory/692-17-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/files/0x000a000000023109-16.dat	upx

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 692 wrote to memory of 3164	692	2023-08-22_ad44f443f64a06c8c6336d59ef9d12e9_cryptolocker_JC.exe	85
PID 692 wrote to memory of 3164	692	2023-08-22_ad44f443f64a06c8c6336d59ef9d12e9_cryptolocker_JC.exe	85
PID 692 wrote to memory of 3164	692	2023-08-22_ad44f443f64a06c8c6336d59ef9d12e9_cryptolocker_JC.exe	85

C:\Users\Admin\AppData\Local\Temp\2023-08-22_ad44f443f64a06c8c6336d59ef9d12e9_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\2023-08-22_ad44f443f64a06c8c6336d59ef9d12e9_cryptolocker_JC.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:692
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3164

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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\asih.exe

Filesize
97KB

MD5
47cd6ddbfd96af788825057c7a4c3bb9

SHA1
33ea0c411e8dc46d245646daee5848cb421e85e9

SHA256
ae3d829f43e59665b11bfcbae0be97edc73fb9937cf4fa7bbc79512eed0668f4

SHA512
db71aaba2f771e112a22b6ecafc1ffb70a418e73aba9b3181682b2ce96aadafa7100e555f89791a64e608a947f3a14214550275b9c2c8f74f38e6fa37599d0ea

Download Submit
C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
97KB

MD5
47cd6ddbfd96af788825057c7a4c3bb9

SHA1
33ea0c411e8dc46d245646daee5848cb421e85e9

SHA256
ae3d829f43e59665b11bfcbae0be97edc73fb9937cf4fa7bbc79512eed0668f4

SHA512
db71aaba2f771e112a22b6ecafc1ffb70a418e73aba9b3181682b2ce96aadafa7100e555f89791a64e608a947f3a14214550275b9c2c8f74f38e6fa37599d0ea

Download Submit
C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
97KB

MD5
47cd6ddbfd96af788825057c7a4c3bb9

SHA1
33ea0c411e8dc46d245646daee5848cb421e85e9

SHA256
ae3d829f43e59665b11bfcbae0be97edc73fb9937cf4fa7bbc79512eed0668f4

SHA512
db71aaba2f771e112a22b6ecafc1ffb70a418e73aba9b3181682b2ce96aadafa7100e555f89791a64e608a947f3a14214550275b9c2c8f74f38e6fa37599d0ea

Download Submit
memory/692-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/692-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/692-2-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/692-3-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/692-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download