283965c8e554469fd93e0b65326707e4d4242b7c1ef0266786074cec91de89e9

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
21-05-2024 15:45

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General

Target

2024-05-21_c182f1980c28458d2043202549b0f470_cryptolocker.exe
Size

95KB
MD5

c182f1980c28458d2043202549b0f470
SHA1

9712eeebe49f4f135f68c86a795661a42d50248b
SHA256

283965c8e554469fd93e0b65326707e4d4242b7c1ef0266786074cec91de89e9
SHA512

129957bb1533eda19cb7a62ca3d00c919baabd9dd65f16d46f2e2da0d9437b0adaa25cdc5c66b31104e4a63f11c550acff05d42c99489ea13bd9676916a28caf
SSDEEP

768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRiWNa9mktJYCr:xj+VGMOtEvwDpjubwQEIiVmksc

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2164-1-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_rule2
behavioral1/memory/2164-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2920-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2920-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2164-1-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_set1
behavioral1/memory/2164-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2920-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2920-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2164-1-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
\Users\Admin\AppData\Local\Temp\misid.exe	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2164-15-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2920-17-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2920-26-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

Processes:

misid.exe

pid process

2920 misid.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-21_c182f1980c28458d2043202549b0f470_cryptolocker.exe

pid process

2164 2024-05-21_c182f1980c28458d2043202549b0f470_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2920	misid.exe

pid	process
2164	2024-05-21_c182f1980c28458d2043202549b0f470_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-21_c182f1980c28458d2043202549b0f470_cryptolocker.exe

description	pid	process	target process
PID 2164 wrote to memory of 2920	2164	2024-05-21_c182f1980c28458d2043202549b0f470_cryptolocker.exe	misid.exe
PID 2164 wrote to memory of 2920	2164	2024-05-21_c182f1980c28458d2043202549b0f470_cryptolocker.exe	misid.exe
PID 2164 wrote to memory of 2920	2164	2024-05-21_c182f1980c28458d2043202549b0f470_cryptolocker.exe	misid.exe
PID 2164 wrote to memory of 2920	2164	2024-05-21_c182f1980c28458d2043202549b0f470_cryptolocker.exe	misid.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-21_c182f1980c28458d2043202549b0f470_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-21_c182f1980c28458d2043202549b0f470_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2164

C:\Users\Admin\AppData\Local\Temp\misid.exe
"C:\Users\Admin\AppData\Local\Temp\misid.exe"
2⤵
- Executes dropped EXE
PID:2920

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\misid.exe
Filesize
96KB

MD5
9e4ee2a0dfd7038227b7319ea4755f49

SHA1
9876fcb20cd16686e3a54a0c6b44cd8fdc7a2848

SHA256
27beef32652d14d91b60c1cd307c125532e095678cde0b86edf42bec632faf88

SHA512
f7a03bfb8f15619b015d41ba36ad97b00deb52ca579eb6fc8ba117efac7dd51a2ce1e48e318f172f20975fe1b8d29213d00f97ab290fd5ef36e19e5d376895c3

Download Submit
memory/2164-2-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2164-1-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2164-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2164-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2164-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2920-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2920-18-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2920-25-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2920-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download