68bb6db7c2ae9e251c5109c0eaae03cd7ca3fd1fd30d6a7e03cbf2c15a37639b

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
17/02/2024, 21:30

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General

Target

2024-02-17_3439eab98b9ad1034f5faf4f1a43c6a0_cryptolocker.exe
Size

85KB
MD5

3439eab98b9ad1034f5faf4f1a43c6a0
SHA1

05b11cc46bd0783e84719946e841a26ebf7508ad
SHA256

68bb6db7c2ae9e251c5109c0eaae03cd7ca3fd1fd30d6a7e03cbf2c15a37639b
SHA512

9616e1a648d92452248619264ea6bab0cdb92b38de18ab109f2bf944030a075d5da543c61fcbb1829a88366462343889fe60b35f0df34b5ff887abe26426fcec
SSDEEP

768:XS5nQJ24LR1bytOOtEvwDpjNbZ7uyA36S7MpxRXrZSUfFKazNclMjNUvx5/5:i5nkFGMOtEvwDpjNbwQEI8UtzNcO8Z

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2356-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a00000001224a-11.dat	CryptoLocker_rule2
behavioral1/memory/2356-14-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2028-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2028-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral1/memory/2356-14-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2028-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2028-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral1/memory/2356-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000a00000001224a-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2356-14-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2028-17-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2028-26-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2028	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2356	2024-02-17_3439eab98b9ad1034f5faf4f1a43c6a0_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 2356 wrote to memory of 2028	2356	2024-02-17_3439eab98b9ad1034f5faf4f1a43c6a0_cryptolocker.exe	28
PID 2356 wrote to memory of 2028	2356	2024-02-17_3439eab98b9ad1034f5faf4f1a43c6a0_cryptolocker.exe	28
PID 2356 wrote to memory of 2028	2356	2024-02-17_3439eab98b9ad1034f5faf4f1a43c6a0_cryptolocker.exe	28
PID 2356 wrote to memory of 2028	2356	2024-02-17_3439eab98b9ad1034f5faf4f1a43c6a0_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-17_3439eab98b9ad1034f5faf4f1a43c6a0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-17_3439eab98b9ad1034f5faf4f1a43c6a0_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2356
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2028

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
85KB

MD5
afb2ee05b2dfc91dcb3d5e78a55433a5

SHA1
95319de405a784485faac23c872d39b0700f98ea

SHA256
418db39ee87eb177eecb2d59adbfdf24093237e26c6d463f4d8e0e528e1144f1

SHA512
853f7266d342207ca53a5bafa821a0ef5bc2c730acf031d7966ae488f081eb0d0a25f08203246b129910319141941ec3ebf62247ab0a9cd5a7b644f003dc37a4

Download Submit
memory/2028-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2028-19-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/2028-18-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2028-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2356-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2356-1-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2356-2-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2356-3-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2356-14-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download