712614fe261840e6de9d17cc63588b119c1a29e0b0c14c5c3b25a39c4c6be510

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
25/05/2024, 02:46

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General

Target

2024-05-25_8412d5dd6075cdc85a5e55cfdc10ec85_cryptolocker.exe
Size

69KB
MD5

8412d5dd6075cdc85a5e55cfdc10ec85
SHA1

8de9c1b9eb400ac00bf2f963d88fd3abc3ba69a7
SHA256

712614fe261840e6de9d17cc63588b119c1a29e0b0c14c5c3b25a39c4c6be510
SHA512

c300cd9cd0107d1a349344bb0c8110e49d6689fdb82b80faa7c026435c7944a33e1afe8cfe4a4bc431bd34dd579304c2c10d5b793c266f918371e4b195b81cda
SSDEEP

768:XS5nQJ24LR1bytOOtEvwDpjNbZ7uyA36S7MpxRXrZSUNsYD/dE:i5nkFGMOtEvwDpjNbwQEI8UZD6

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 6 IoCs

resource	yara_rule
behavioral1/memory/2180-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000012279-11.dat	CryptoLocker_rule2
behavioral1/memory/2180-13-0x0000000001E60000-0x0000000001E6F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2444-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2180-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2444-27-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral1/memory/2444-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2180-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2444-27-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 6 IoCs

resource	yara_rule
behavioral1/memory/2180-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000b000000012279-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2180-13-0x0000000001E60000-0x0000000001E6F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2444-18-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2180-17-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2444-27-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2444	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2180	2024-05-25_8412d5dd6075cdc85a5e55cfdc10ec85_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 2180 wrote to memory of 2444	2180	2024-05-25_8412d5dd6075cdc85a5e55cfdc10ec85_cryptolocker.exe	28
PID 2180 wrote to memory of 2444	2180	2024-05-25_8412d5dd6075cdc85a5e55cfdc10ec85_cryptolocker.exe	28
PID 2180 wrote to memory of 2444	2180	2024-05-25_8412d5dd6075cdc85a5e55cfdc10ec85_cryptolocker.exe	28
PID 2180 wrote to memory of 2444	2180	2024-05-25_8412d5dd6075cdc85a5e55cfdc10ec85_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-25_8412d5dd6075cdc85a5e55cfdc10ec85_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-25_8412d5dd6075cdc85a5e55cfdc10ec85_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2180
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2444

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
69KB

MD5
4720910caab2770e994b416bf2af8eae

SHA1
fdf7e7e7393aa2e4b1835ab693f534df5f6b30fb

SHA256
33cb8b333399f11998b095f7204a107e9d4598b7ff1c1919e032e9a757f9b97c

SHA512
a90d680dff4e3b67c5e94a869af0f51abc8145cb8393a131f42c7631fee2bf1d4eea5bbb202c3ef2164ac1021b6a91175c3761c6ddfb16b5d0957029c44e7ee2

Download Submit
memory/2180-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2180-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2180-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2180-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2180-13-0x0000000001E60000-0x0000000001E6F000-memory.dmp

Filesize
60KB

Download
memory/2180-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2444-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2444-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download