288e800b2d6e82ef6db7fd8bee35c5e0c1e6e002a50efb31ed21ab8bce11a6eb

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
17/02/2024, 20:45

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General

Target

2024-02-17_cf2deb4077b8442466c7c43918a82694_cryptolocker.exe
Size

85KB
MD5

cf2deb4077b8442466c7c43918a82694
SHA1

a955ea23e94d68920f813155ca7f6f3b9b461220
SHA256

288e800b2d6e82ef6db7fd8bee35c5e0c1e6e002a50efb31ed21ab8bce11a6eb
SHA512

a6c6c7fe7d87241f3cf4bb59d7a80f2a55085306f4431252b88a5a02d79c38e49c5c5f5194e0d8ced09239c1a1d8a61a80820901e38f70b09a417163a45bbf76
SSDEEP

768:XS5nQJ24LR1bytOOtEvwDpjNbZ7uyA36S7MpxRXrZSUfFKazNclMjNUvx5/x:i5nkFGMOtEvwDpjNbwQEI8UtzNcO8R

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 6 IoCs

resource	yara_rule
behavioral1/memory/2064-1-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a00000001220d-11.dat	CryptoLocker_rule2
behavioral1/memory/2064-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2680-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2064-12-0x0000000002460000-0x000000000246F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2680-27-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2064-1-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2064-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2680-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2680-27-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 6 IoCs

resource	yara_rule
behavioral1/memory/2064-1-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000a00000001220d-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2064-15-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2680-17-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2064-12-0x0000000002460000-0x000000000246F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2680-27-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2680	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2064	2024-02-17_cf2deb4077b8442466c7c43918a82694_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 2064 wrote to memory of 2680	2064	2024-02-17_cf2deb4077b8442466c7c43918a82694_cryptolocker.exe	28
PID 2064 wrote to memory of 2680	2064	2024-02-17_cf2deb4077b8442466c7c43918a82694_cryptolocker.exe	28
PID 2064 wrote to memory of 2680	2064	2024-02-17_cf2deb4077b8442466c7c43918a82694_cryptolocker.exe	28
PID 2064 wrote to memory of 2680	2064	2024-02-17_cf2deb4077b8442466c7c43918a82694_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-17_cf2deb4077b8442466c7c43918a82694_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-17_cf2deb4077b8442466c7c43918a82694_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2064
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2680

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
e88ad93bd69f738051c259ecf9742070

SHA1
fabc7a78cd989da006aca0d20fb60ab02a5b14bd

SHA256
88a9a69910d99adb8f67d12e0745cdce5ee130c2a8c0bb69f74cbbda2deee0e2

SHA512
f1be47b9f63ce31f55384ff99739084e583008b4bfc9d23221c622340792034a8c91ef92a9a06c295911c982a70debd2e53b289da2f43003fd979b121a970b41

Download Submit
memory/2064-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2064-1-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2064-2-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/2064-3-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2064-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2064-12-0x0000000002460000-0x000000000246F000-memory.dmp

Filesize
60KB

Download
memory/2680-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2680-19-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2680-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2680-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download