93dc187f818330a2f57a355a0c74f18ae0392e4e071972e61d128bfecdff01f2

Analysis

max time kernel
150s
max time network
151s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22-05-2024 20:51

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General

Target

2024-05-22_e9326c92642038c5aebc42e5df691b52_cryptolocker.exe
Size

42KB
MD5

e9326c92642038c5aebc42e5df691b52
SHA1

272b485767daabba3390c32b229d8b071a65e5e1
SHA256

93dc187f818330a2f57a355a0c74f18ae0392e4e071972e61d128bfecdff01f2
SHA512

85761cdb0004948136e865a6167e288c8d8a71d00d278a8896daaecf68a58d26d11c332cc0c077f3afc2b0a83ebb1987c6ccc054da1903f4ba12be76fdcbebc8
SSDEEP

768:XS5nQJ24LR1bytOOtEvwDpj66BLbjG9Rva/yYshNhL:i5nkFGMOtEvwDpjR+viHshNd

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2000-8-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_rule2
behavioral1/memory/3016-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3016-25-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 2 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2000-8-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3016-25-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2000-8-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
\Users\Admin\AppData\Local\Temp\misid.exe	INDICATOR_EXE_Packed_MPress
behavioral1/memory/3016-16-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/3016-25-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

Processes:

misid.exe

pid process

3016 misid.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-22_e9326c92642038c5aebc42e5df691b52_cryptolocker.exe

pid process

2000 2024-05-22_e9326c92642038c5aebc42e5df691b52_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
3016	misid.exe

pid	process
2000	2024-05-22_e9326c92642038c5aebc42e5df691b52_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-22_e9326c92642038c5aebc42e5df691b52_cryptolocker.exe

description	pid	process	target process
PID 2000 wrote to memory of 3016	2000	2024-05-22_e9326c92642038c5aebc42e5df691b52_cryptolocker.exe	misid.exe
PID 2000 wrote to memory of 3016	2000	2024-05-22_e9326c92642038c5aebc42e5df691b52_cryptolocker.exe	misid.exe
PID 2000 wrote to memory of 3016	2000	2024-05-22_e9326c92642038c5aebc42e5df691b52_cryptolocker.exe	misid.exe
PID 2000 wrote to memory of 3016	2000	2024-05-22_e9326c92642038c5aebc42e5df691b52_cryptolocker.exe	misid.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-22_e9326c92642038c5aebc42e5df691b52_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_e9326c92642038c5aebc42e5df691b52_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2000
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3016

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\misid.exe

Filesize
42KB

MD5
9300a640b5fe1ca83db4b2275d8f580d

SHA1
6fd3fb54fe9d212d73b7fdacd2f7ef7129f32fec

SHA256
0585068ca1fd8e2b347cc0a8cfd6b71d54d3c1eedc3f5ae7b87a8b404005d651

SHA512
2305b0382bfc0a85e1d62058298f3fa1da221587613749ae4642d12875d429af51b6e29ffe24c3de8737f4bcb0c26d03de833d97b51948e5654b75cd19d03d14

Download Submit
memory/2000-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2000-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2000-8-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2000-1-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/3016-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3016-18-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/3016-25-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download