32edea67968b4fd0724af3b0f7d5e9868f95f599c2f475a2286e061d0d5b356d

General

Target

2024-05-21_cabe62ab2393fda48934d7cec2140237_cryptolocker.exe
Size

95KB
MD5

cabe62ab2393fda48934d7cec2140237
SHA1

4cbf116ff2dba1822bf88a63a0732d6c4763f7af
SHA256

32edea67968b4fd0724af3b0f7d5e9868f95f599c2f475a2286e061d0d5b356d
SHA512

eb683813011774fab848fe4d1e11da25241833531dbd3ba2f1957987d2587cd68f02a717adf1c6984710c06a28cae3a8d3613e35eb467f8ec6625ee7e81aabe2
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgp0+f:AnBdOOtEvwDpj6z8

Score

9^/10

upx

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1796-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_rule2
behavioral1/memory/2268-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1796-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2268-27-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1796-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_set1
behavioral1/memory/2268-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1796-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2268-27-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

UPX dump on OEP (original entry point) 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1796-0-0x0000000000500000-0x000000000050F000-memory.dmp	UPX
\Users\Admin\AppData\Local\Temp\asih.exe	UPX
behavioral1/memory/2268-17-0x0000000000500000-0x000000000050F000-memory.dmp	UPX
behavioral1/memory/1796-16-0x0000000000500000-0x000000000050F000-memory.dmp	UPX
behavioral1/memory/2268-27-0x0000000000500000-0x000000000050F000-memory.dmp	UPX

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

2268 asih.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-21_cabe62ab2393fda48934d7cec2140237_cryptolocker.exe

pid process

1796 2024-05-21_cabe62ab2393fda48934d7cec2140237_cryptolocker.exe

pid	process
2268	asih.exe

pid	process
1796	2024-05-21_cabe62ab2393fda48934d7cec2140237_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1796-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
\Users\Admin\AppData\Local\Temp\asih.exe	upx
behavioral1/memory/2268-17-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/1796-16-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/2268-27-0x0000000000500000-0x000000000050F000-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 4 IoCs

Processes:

2024-05-21_cabe62ab2393fda48934d7cec2140237_cryptolocker.exe

description	pid	process	target process
PID 1796 wrote to memory of 2268	1796	2024-05-21_cabe62ab2393fda48934d7cec2140237_cryptolocker.exe	asih.exe
PID 1796 wrote to memory of 2268	1796	2024-05-21_cabe62ab2393fda48934d7cec2140237_cryptolocker.exe	asih.exe
PID 1796 wrote to memory of 2268	1796	2024-05-21_cabe62ab2393fda48934d7cec2140237_cryptolocker.exe	asih.exe
PID 1796 wrote to memory of 2268	1796	2024-05-21_cabe62ab2393fda48934d7cec2140237_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-21_cabe62ab2393fda48934d7cec2140237_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-21_cabe62ab2393fda48934d7cec2140237_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1796

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:2268

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
95KB

MD5
2c69b42b3d538a11dda0d919103d6941

SHA1
290612b9268708579af5db24e49429130d4ae2e6

SHA256
eea6e56a2670a9b066c8e92d73108f433301bcae6120a0c99b3764e0b03d9e10

SHA512
906540894365e1f047e9f8739cb3a2502b2d080968ae71ab0c7de1d47dabfa728f041d01eb2333991c5326a3485dffae25420b51a70c0524797c3c42606c11c5

Download Submit
memory/1796-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1796-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1796-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1796-2-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download
memory/1796-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2268-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2268-19-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2268-26-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2268-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads