0a360d3a92a5dcb7c596a13bbc1146b2c9bda376cefeea968a63f3350d25adb8

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
23-01-2024 00:39

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General

Target

2024-01-23_f426d51da0b815e2d868bcec5df775da_cryptolocker.exe
Size

61KB
MD5

f426d51da0b815e2d868bcec5df775da
SHA1

d37ade39560481006f56ba716f1a1d334cd31d7d
SHA256

0a360d3a92a5dcb7c596a13bbc1146b2c9bda376cefeea968a63f3350d25adb8
SHA512

265287a362cbea74da75df44f289dc857c9578ad23e92d279e21c5a258a6140268156bbe9729517b4e011cc41503fe36320e2a49c234ec7921133af40817a4cd
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBccD2RuoNmuBLZ/xEdx:X6a+SOtEvwDpjBrOi

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001226e-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001226e-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2384	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2036	2024-01-23_f426d51da0b815e2d868bcec5df775da_cryptolocker.exe

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 2036 wrote to memory of 2384	2036	2024-01-23_f426d51da0b815e2d868bcec5df775da_cryptolocker.exe	28
PID 2036 wrote to memory of 2384	2036	2024-01-23_f426d51da0b815e2d868bcec5df775da_cryptolocker.exe	28
PID 2036 wrote to memory of 2384	2036	2024-01-23_f426d51da0b815e2d868bcec5df775da_cryptolocker.exe	28
PID 2036 wrote to memory of 2384	2036	2024-01-23_f426d51da0b815e2d868bcec5df775da_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-23_f426d51da0b815e2d868bcec5df775da_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-23_f426d51da0b815e2d868bcec5df775da_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2036
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2384

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
62KB

MD5
43876ff586202562b720019feea0561b

SHA1
d1a2ff6bc25e70b5cdbf49eab499789d664ae19f

SHA256
1edfd2e3c437654b8c90041d8f5a5e78433df8a3666e7b27dda89b2a2ed527ce

SHA512
891bc93299af493776bdd414b20b101acdffb20b99c29c708d3667f3745fd9b59bb67ab7a431b9e9a59951f17c4ea00e97ec9e007d1bf107b4b8922897e3412c

Download Submit
memory/2036-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2036-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2036-3-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2384-17-0x00000000001E0000-0x00000000001E6000-memory.dmp

Filesize
24KB

Download
memory/2384-15-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download