3b700db5676b3baa8fa4bad2911c67118a5fc1ed1adbe9c9798b7ea614dfd554

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
15/05/2024, 21:27

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General

Target

2024-05-15_37cb6a33dca04cedc79927e19a81df7d_cryptolocker.exe
Size

96KB
MD5

37cb6a33dca04cedc79927e19a81df7d
SHA1

dccbadf5371b450d8d7ff3ff0463a4ca739f3b38
SHA256

3b700db5676b3baa8fa4bad2911c67118a5fc1ed1adbe9c9798b7ea614dfd554
SHA512

ed2ab774a230aeb1034008c7d218e89be0fc94ba5a9f57f2bff51adad413b9b99442951d4a0700de5e04fd63e7726972754230a098d1fe31e806eeec0e4fe027
SSDEEP

768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRiWNa9mktJYT6:xj+VGMOtEvwDpjubwQEIiVmksW

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2060-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000015bb9-11.dat	CryptoLocker_rule2
behavioral1/memory/2060-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2056-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2056-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2060-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000015bb9-11.dat	CryptoLocker_set1
behavioral1/memory/2060-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2056-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2056-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral1/memory/2060-0-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000b000000015bb9-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2060-15-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2056-17-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2056-26-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2056	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2060	2024-05-15_37cb6a33dca04cedc79927e19a81df7d_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 2060 wrote to memory of 2056	2060	2024-05-15_37cb6a33dca04cedc79927e19a81df7d_cryptolocker.exe	28
PID 2060 wrote to memory of 2056	2060	2024-05-15_37cb6a33dca04cedc79927e19a81df7d_cryptolocker.exe	28
PID 2060 wrote to memory of 2056	2060	2024-05-15_37cb6a33dca04cedc79927e19a81df7d_cryptolocker.exe	28
PID 2060 wrote to memory of 2056	2060	2024-05-15_37cb6a33dca04cedc79927e19a81df7d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-15_37cb6a33dca04cedc79927e19a81df7d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-15_37cb6a33dca04cedc79927e19a81df7d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2060
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2056

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
89d7e06972b4d98bfd3004763ef0a851

SHA1
b852e3d9fe336f8ba999fdd8be0d121cfc3c87be

SHA256
4ab81700a0ca9e88f23a36792e657a4472b0c3f38dbbb7b610e5666474771527

SHA512
5967502abb041ab48be7328e500da1c2685ab57169f14f0b1ea74b6984c1a3bc342681eae3d783967afc4e012083bff9b500b4f753cd3cf1b2ff685019e3d4ac

Download Submit
memory/2056-18-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2056-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2056-25-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2056-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2060-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2060-1-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/2060-2-0x0000000000410000-0x0000000000416000-memory.dmp

Filesize
24KB

Download
memory/2060-9-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/2060-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download