0e5bbe4ecea2c352bdc338066cdf4cf58ed8a00b5ab91512836f6b00d9210377

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
16/05/2024, 23:49

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General

Target

2024-05-16_2d06602a834fed819315f41956455b60_cryptolocker.exe
Size

39KB
MD5

2d06602a834fed819315f41956455b60
SHA1

bbecefa78c127ea76f6d703ab33daae3d594908c
SHA256

0e5bbe4ecea2c352bdc338066cdf4cf58ed8a00b5ab91512836f6b00d9210377
SHA512

bd4d5481a9b68ac28cd0521c756c71feb53338d53382e84091482f9e10aadded1461b1dbfb76ec107d386b02ae0d72019b13a1c20a573229d8afbcf12f8f2923
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYaVI:qDdFJy3QMOtEvwDpjjWMl7Td2

Score

9^/10

upx

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/1936-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1936-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a000000014af6-14.dat	CryptoLocker_rule2
behavioral1/memory/3032-19-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/1936-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1936-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a000000014af6-14.dat	CryptoLocker_set1
behavioral1/memory/3032-19-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral1/memory/1936-0-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/1936-16-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/files/0x000a000000014af6-14.dat	UPX
behavioral1/memory/3032-19-0x0000000000500000-0x0000000000510000-memory.dmp	UPX

Executes dropped EXE 1 IoCs

pid	Process
3032	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1936	2024-05-16_2d06602a834fed819315f41956455b60_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1936-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1936-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000a000000014af6-14.dat	upx
behavioral1/memory/3032-19-0x0000000000500000-0x0000000000510000-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 4 IoCs

description	pid	Process	procid_target
PID 1936 wrote to memory of 3032	1936	2024-05-16_2d06602a834fed819315f41956455b60_cryptolocker.exe	28
PID 1936 wrote to memory of 3032	1936	2024-05-16_2d06602a834fed819315f41956455b60_cryptolocker.exe	28
PID 1936 wrote to memory of 3032	1936	2024-05-16_2d06602a834fed819315f41956455b60_cryptolocker.exe	28
PID 1936 wrote to memory of 3032	1936	2024-05-16_2d06602a834fed819315f41956455b60_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-16_2d06602a834fed819315f41956455b60_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-16_2d06602a834fed819315f41956455b60_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1936
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3032

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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
39KB

MD5
df4c56d07ebccece9d460c0fbaca1ef1

SHA1
2779d36d103fc13dea4bb22b9b4cc88cc74c74fb

SHA256
93c95276756a3b65528e621de678d5ad5b1db24a27d9e02f68ee7c8ac84773da

SHA512
9db28b5dd82c9921c69421d77554c7c9e9a258d23121675e4409f982a5779e390080f92ea0b0a80138c471a4bc1a6934a5d15b5aaccd9f8d985f8fe0e259728c

Download Submit
memory/1936-1-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/1936-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1936-9-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/1936-2-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/1936-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3032-20-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/3032-19-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3032-18-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download