3d1a780d8316fbd2186f138d9c1ecbb35a84c220937bd35db3474a33328d0255

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
22-05-2024 23:33

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General

Target

2024-05-22_ee2356b07beb7205a8a040af01c18615_cryptolocker.exe
Size

42KB
MD5

ee2356b07beb7205a8a040af01c18615
SHA1

b9e5285f105a6c98da62ee83b6e7a7362bcf770d
SHA256

3d1a780d8316fbd2186f138d9c1ecbb35a84c220937bd35db3474a33328d0255
SHA512

6a58c79604090804da027a462930533f1bb2a089e6e9f8b0303a373b738fcabd8b17c7ed138268fd4671fce60c18e3a6a5aaab1dd6a5bf367a54a37431f3c50d
SSDEEP

768:XS5nQJ24LR1bytOOtEvwDpj66BLbjG9Rva/yYshNhH:i5nkFGMOtEvwDpjR+viHshNB

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1952-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_rule2
behavioral1/memory/1952-13-0x0000000001E50000-0x0000000001E5F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1952-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2680-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2680-28-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 2 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1952-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2680-28-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1952-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
\Users\Admin\AppData\Local\Temp\misid.exe	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1952-13-0x0000000001E50000-0x0000000001E5F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1952-17-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2680-18-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2680-28-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

Processes:

misid.exe

pid process

2680 misid.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-22_ee2356b07beb7205a8a040af01c18615_cryptolocker.exe

pid process

1952 2024-05-22_ee2356b07beb7205a8a040af01c18615_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2680	misid.exe

pid	process
1952	2024-05-22_ee2356b07beb7205a8a040af01c18615_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-22_ee2356b07beb7205a8a040af01c18615_cryptolocker.exe

description	pid	process	target process
PID 1952 wrote to memory of 2680	1952	2024-05-22_ee2356b07beb7205a8a040af01c18615_cryptolocker.exe	misid.exe
PID 1952 wrote to memory of 2680	1952	2024-05-22_ee2356b07beb7205a8a040af01c18615_cryptolocker.exe	misid.exe
PID 1952 wrote to memory of 2680	1952	2024-05-22_ee2356b07beb7205a8a040af01c18615_cryptolocker.exe	misid.exe
PID 1952 wrote to memory of 2680	1952	2024-05-22_ee2356b07beb7205a8a040af01c18615_cryptolocker.exe	misid.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-22_ee2356b07beb7205a8a040af01c18615_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_ee2356b07beb7205a8a040af01c18615_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1952

C:\Users\Admin\AppData\Local\Temp\misid.exe
"C:\Users\Admin\AppData\Local\Temp\misid.exe"
2⤵
- Executes dropped EXE
PID:2680

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
74f888385e15ea7bb9382a180e1ad0fa

SHA1
b968b5789341dd25d7dddbfff7f4d5ce0b7f9bd4

SHA256
d4b97ec4f93ceffb682aff12823dc6296f92c5783c9580922c286bce1c753a03

SHA512
8f8e751f473d27db81559ad58bcdedf584ab047369aea022ccfe3b1d13e1bedb60a75373bbde20b06263f8fccd093665c944607c339e4bccf4692de3d8eea261

Download Submit
memory/1952-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1952-1-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/1952-2-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/1952-9-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/1952-13-0x0000000001E50000-0x0000000001E5F000-memory.dmp

Filesize
60KB

Download
memory/1952-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2680-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2680-27-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2680-20-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2680-28-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download