507e731f16e6fdf1f74e737301c3822bf9ec1cbc530c60a07ac6c854fecfac9b

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
22/05/2024, 05:32

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General

Target

202405217df5e417f529ff849032c950e57b5ba3cryptolocker.exe
Size

95KB
MD5

7df5e417f529ff849032c950e57b5ba3
SHA1

194fcdb28457a6594a0b7b5d34e68a1aff083bdb
SHA256

507e731f16e6fdf1f74e737301c3822bf9ec1cbc530c60a07ac6c854fecfac9b
SHA512

7ad09076ccd4ef1d9ac809e06adf61fdc3ae3d03cb93f618d35e8a0a2aaa5a3fed15af234ca0dbfdff756e7f37b6f1922a13f62e9c27047f24150e1e2230996d
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgp0+D:AnBdOOtEvwDpj6zw

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-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation	202405217df5e417f529ff849032c950e57b5ba3cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3444	asih.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1684-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/files/0x000800000002342a-13.dat	upx
behavioral2/memory/3444-17-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/memory/1684-19-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/memory/3444-28-0x0000000000500000-0x000000000050F000-memory.dmp	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 1684 wrote to memory of 3444	1684	202405217df5e417f529ff849032c950e57b5ba3cryptolocker.exe	85
PID 1684 wrote to memory of 3444	1684	202405217df5e417f529ff849032c950e57b5ba3cryptolocker.exe	85
PID 1684 wrote to memory of 3444	1684	202405217df5e417f529ff849032c950e57b5ba3cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\202405217df5e417f529ff849032c950e57b5ba3cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\202405217df5e417f529ff849032c950e57b5ba3cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1684
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3444

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
95KB

MD5
93b9c8f74d65ea0f8f991fc832b508fa

SHA1
84f047fd28c311e7ebe7c3939449ae2a62961df6

SHA256
1162534c57db1612aa93d5579bf2d2656d53396407a09f76007f6b58fd78a9e4

SHA512
cf424f7097f1b0aae53e71f22fb802936fcfaf92cd5e559e0adbbec80035378d7cd34cb23d402168a1998ba6ca0d7994e0c21e55da12dca69c1ae0b65dcb88d4

Download Submit
memory/1684-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1684-1-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/1684-2-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/1684-9-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/1684-19-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3444-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3444-21-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/3444-22-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/3444-28-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download