2e86c38174633736af598b022bac66dd0b02a115eda2f2e2a37663e94b99d8f2

Analysis

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

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
11/05/2024, 05:21

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General

Target

2024-05-11_f70955c54af42dd0e0d1af5faac17374_cryptolocker.exe
Size

96KB
MD5

f70955c54af42dd0e0d1af5faac17374
SHA1

7e4ce447f1d87a121df8d1b7fd9fe4a8b1df5e27
SHA256

2e86c38174633736af598b022bac66dd0b02a115eda2f2e2a37663e94b99d8f2
SHA512

063f2861444ee3c11e4ba14b55b59af7d6f5bb95b43562593df5994462b7dcd67eff89ac6e3b8ecbc210d4472959396fc49c1beab3784ae673e81f4a3418d93e
SSDEEP

768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRiWNa9mktJyqdO5:xj+VGMOtEvwDpjubwQEIiVmkuqc5

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1936-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000d00000001340c-11.dat	CryptoLocker_rule2
behavioral1/memory/2544-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1936-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2544-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1936-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000d00000001340c-11.dat	CryptoLocker_set1
behavioral1/memory/2544-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1936-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2544-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral1/memory/1936-0-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000d00000001340c-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2544-16-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1936-15-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2544-26-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2544	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1936	2024-05-11_f70955c54af42dd0e0d1af5faac17374_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 1936 wrote to memory of 2544	1936	2024-05-11_f70955c54af42dd0e0d1af5faac17374_cryptolocker.exe	28
PID 1936 wrote to memory of 2544	1936	2024-05-11_f70955c54af42dd0e0d1af5faac17374_cryptolocker.exe	28
PID 1936 wrote to memory of 2544	1936	2024-05-11_f70955c54af42dd0e0d1af5faac17374_cryptolocker.exe	28
PID 1936 wrote to memory of 2544	1936	2024-05-11_f70955c54af42dd0e0d1af5faac17374_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-11_f70955c54af42dd0e0d1af5faac17374_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-11_f70955c54af42dd0e0d1af5faac17374_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1936
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2544

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
96KB

MD5
2f95e80b563c425f881fafaf3359a7bd

SHA1
272c52408fefd92aee1f9fe5d274452c989e60e4

SHA256
2c9eb71d40fa3a907d9afc75b1cf8bf0a35f1cd3ec0bbf6e05f2b29074447465

SHA512
3c7a6a813a4c6abf556c57df1c8eceef03fde4d4d3010376bf9d73c9f2bdc3e4999c1f5a437dff5ef58caf78201744dacc0f44fbd1a8165956a468c23715f5d0

Download Submit
memory/1936-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1936-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1936-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1936-9-0x0000000077750000-0x00000000778F9000-memory.dmp

Filesize
1.7MB

Download
memory/1936-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2544-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2544-25-0x0000000077750000-0x00000000778F9000-memory.dmp

Filesize
1.7MB

Download
memory/2544-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download