4d43da5733c7fab938d1d95a8fcfaab37da6c9206a92d8c57cdb9a402e02ae91

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25-01-2024 15:55

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General

Target

2024-01-25_ea55caa34f65fb5d32d43d2aa742b049_cryptolocker.exe
Size

97KB
MD5

ea55caa34f65fb5d32d43d2aa742b049
SHA1

49f9716f772dc07b6107f61d7bd293f97ba736fe
SHA256

4d43da5733c7fab938d1d95a8fcfaab37da6c9206a92d8c57cdb9a402e02ae91
SHA512

cc62b2d3c24f839832111de42c50fc9a9f7d99caf2eafdbbad8cea4d0caae8cb07b9b7c592bc42c48671b390cf8d5847c3273598214a15a2ff13b17090260939
SSDEEP

1536:26QFElP6n+gBQMOtEvwDpjQGYQbN/PKwNCJz:26a+2OtEvwDpjtzi

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_set1

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

2108 asih.exe
Loads dropped DLL 1 IoCs

Processes:

2024-01-25_ea55caa34f65fb5d32d43d2aa742b049_cryptolocker.exe

pid process

2148 2024-01-25_ea55caa34f65fb5d32d43d2aa742b049_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2108	asih.exe

pid	process
2148	2024-01-25_ea55caa34f65fb5d32d43d2aa742b049_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-01-25_ea55caa34f65fb5d32d43d2aa742b049_cryptolocker.exe

description	pid	process	target process
PID 2148 wrote to memory of 2108	2148	2024-01-25_ea55caa34f65fb5d32d43d2aa742b049_cryptolocker.exe	asih.exe
PID 2148 wrote to memory of 2108	2148	2024-01-25_ea55caa34f65fb5d32d43d2aa742b049_cryptolocker.exe	asih.exe
PID 2148 wrote to memory of 2108	2148	2024-01-25_ea55caa34f65fb5d32d43d2aa742b049_cryptolocker.exe	asih.exe
PID 2148 wrote to memory of 2108	2148	2024-01-25_ea55caa34f65fb5d32d43d2aa742b049_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-01-25_ea55caa34f65fb5d32d43d2aa742b049_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_ea55caa34f65fb5d32d43d2aa742b049_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2148

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:2108

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

\Users\Admin\AppData\Local\Temp\asih.exe
Filesize
97KB

MD5
d0cb2c4567e1dfb213ab1c262483d639

SHA1
bdeea85c81eabdbf66d7913e551b901af7c4fc52

SHA256
31aa8fc507ea3ac1129e90295d9c9e252ec4b67184b3ec9d3e6ad724497f560b

SHA512
6790225bf8d306e7f2fe457cbdb4629c302c1c4105191056819ca5280f4a10d72e26b1655bbd6aff9e4fb9d4ae7d01ca28494167661038723085bb258eb70e35

Download Submit
memory/2108-16-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2108-15-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2148-0-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2148-2-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2148-1-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download