16721ba2f45dd8dc9f8482b1a362008846cb8865fa58551f1c28e1ec11ab092c

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
09/06/2024, 22:45

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General

Target

2024-06-09_f6f58455eb1c2715be8f60fef0665df9_cryptolocker.exe
Size

43KB
MD5

f6f58455eb1c2715be8f60fef0665df9
SHA1

168c06b158b5aeaa1bbfa63e80cab9bdfdc732a4
SHA256

16721ba2f45dd8dc9f8482b1a362008846cb8865fa58551f1c28e1ec11ab092c
SHA512

4d0ccc977560f13341f9885dc7c34d83e805a42aaa2033bf760341654df83706b61c7b75c254568c90e34b506a98ffae7343d568df36072fe68948b702f1e2d7
SSDEEP

768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqh6/agqw:6j+1NMOtEvwDpjrRtqw

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2748-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000012279-11.dat	CryptoLocker_rule2
behavioral1/memory/2748-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2628-25-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2748-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000012279-11.dat	CryptoLocker_set1
behavioral1/memory/2748-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2628-25-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

resource	yara_rule
behavioral1/memory/2748-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000b000000012279-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2748-15-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2628-25-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2628	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2748	2024-06-09_f6f58455eb1c2715be8f60fef0665df9_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 2748 wrote to memory of 2628	2748	2024-06-09_f6f58455eb1c2715be8f60fef0665df9_cryptolocker.exe	28
PID 2748 wrote to memory of 2628	2748	2024-06-09_f6f58455eb1c2715be8f60fef0665df9_cryptolocker.exe	28
PID 2748 wrote to memory of 2628	2748	2024-06-09_f6f58455eb1c2715be8f60fef0665df9_cryptolocker.exe	28
PID 2748 wrote to memory of 2628	2748	2024-06-09_f6f58455eb1c2715be8f60fef0665df9_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-09_f6f58455eb1c2715be8f60fef0665df9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-09_f6f58455eb1c2715be8f60fef0665df9_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2748
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2628

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
43KB

MD5
ac6e9c77f87b12e10c7d7788313cf0c9

SHA1
3249f8b574e08f5e575791c0eaea8d5eaa6619a4

SHA256
ba41856cf01d46328a64e9f71601e2e3b9f2f74cace3c4071958003b14a8a1f2

SHA512
ac3d4aeed80e83921b5ab6e48b1b2f6e8a1155e8d9d0a11c52903986a93db25ddad60385a4c2269e08df1a8dcc7521637d3c8644f76def26e8fe4f844223fb64

Download Submit
memory/2628-24-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/2628-17-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2628-25-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2748-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2748-2-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2748-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2748-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2748-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download