7e66758e6793ade7b1225eef814347c97b07a3007ffaae4ad98ec8e5e44c7839

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
19/03/2024, 20:47

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General

Target

2024-03-19_db252a3273c6795016a5ca48af0173b6_cryptolocker.exe
Size

42KB
MD5

db252a3273c6795016a5ca48af0173b6
SHA1

fd67198dce0bec0ae73f47dc8a0e05c9a587a2ed
SHA256

7e66758e6793ade7b1225eef814347c97b07a3007ffaae4ad98ec8e5e44c7839
SHA512

6273ebd48424f71ecbbbcb3e12b9f6fd31ad1f6435d6ebeaf4dbda0505882364ebd7330ab12aad5cbd73aa3ebbfd3b1ec4975c1425a4a290d5852f46e5209fed
SSDEEP

768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqhMWKajni:6j+1NMOtEvwDpjrobi

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 6 IoCs

resource	yara_rule
behavioral1/memory/2952-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c000000012249-11.dat	CryptoLocker_rule2
behavioral1/memory/2952-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2552-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2952-13-0x0000000002AC0000-0x0000000002ACF000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2552-27-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 6 IoCs

resource	yara_rule
behavioral1/memory/2952-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c000000012249-11.dat	CryptoLocker_set1
behavioral1/memory/2952-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2552-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2952-13-0x0000000002AC0000-0x0000000002ACF000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2552-27-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 6 IoCs

resource	yara_rule
behavioral1/memory/2952-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000c000000012249-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2952-15-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2552-17-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2952-13-0x0000000002AC0000-0x0000000002ACF000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2552-27-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2552	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2952	2024-03-19_db252a3273c6795016a5ca48af0173b6_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 2952 wrote to memory of 2552	2952	2024-03-19_db252a3273c6795016a5ca48af0173b6_cryptolocker.exe	28
PID 2952 wrote to memory of 2552	2952	2024-03-19_db252a3273c6795016a5ca48af0173b6_cryptolocker.exe	28
PID 2952 wrote to memory of 2552	2952	2024-03-19_db252a3273c6795016a5ca48af0173b6_cryptolocker.exe	28
PID 2952 wrote to memory of 2552	2952	2024-03-19_db252a3273c6795016a5ca48af0173b6_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-19_db252a3273c6795016a5ca48af0173b6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-19_db252a3273c6795016a5ca48af0173b6_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2952
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2552

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
612b59cf6f2f3cd5e8bc64c750645685

SHA1
d055c3fbbdd2d4a7e254dc855370f4999befe95b

SHA256
f385fcaa6690556d3cb2fc239ca80635eccf8f12a295e83947e9bf8d2f3755ef

SHA512
0a37a10e707453b67fefda22c2c0faa955306881031170d6e21acee0cd925f3ba54a0fb9da4e81c857c34ac41bb2b1d661a5521579c63550a717918eb2c5741c

Download Submit
memory/2552-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2552-19-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2552-21-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2552-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2952-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2952-1-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2952-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2952-9-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2952-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2952-13-0x0000000002AC0000-0x0000000002ACF000-memory.dmp

Filesize
60KB

Download