d2c0381a7aec70f25b599f23d74e3d34802a84679da0d63987e5b150f4fe2544

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
01-06-2024 03:40

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General

Target

2024-06-01_6655daa7307b0eea2da47ed00a251816_cryptolocker.exe
Size

47KB
MD5

6655daa7307b0eea2da47ed00a251816
SHA1

ebe9828bd2cc39b57853fa69149757255ecf345e
SHA256

d2c0381a7aec70f25b599f23d74e3d34802a84679da0d63987e5b150f4fe2544
SHA512

5106eaebf561f53fb01f9e9ff465282376220385a38ae8d6791e8b83ad85ce0b82622ae52740460db41acc157956ae9895245b0ddabd8bfb49605dc3fbccf655
SSDEEP

768:xQz7yVEhs9+4uR1bytOOtEvwDpjWE6BLbjG9RzhwaRhv:xj+VGMOtEvwDpjy+TRhv

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2368-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b00000001431b-11.dat	CryptoLocker_rule2
behavioral1/memory/2368-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3012-25-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2368-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b00000001431b-11.dat	CryptoLocker_set1
behavioral1/memory/2368-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3012-25-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

resource	yara_rule
behavioral1/memory/2368-0-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000b00000001431b-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2368-15-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/3012-25-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
3012	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2368	2024-06-01_6655daa7307b0eea2da47ed00a251816_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 2368 wrote to memory of 3012	2368	2024-06-01_6655daa7307b0eea2da47ed00a251816_cryptolocker.exe	28
PID 2368 wrote to memory of 3012	2368	2024-06-01_6655daa7307b0eea2da47ed00a251816_cryptolocker.exe	28
PID 2368 wrote to memory of 3012	2368	2024-06-01_6655daa7307b0eea2da47ed00a251816_cryptolocker.exe	28
PID 2368 wrote to memory of 3012	2368	2024-06-01_6655daa7307b0eea2da47ed00a251816_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-01_6655daa7307b0eea2da47ed00a251816_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-01_6655daa7307b0eea2da47ed00a251816_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2368
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3012

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
47KB

MD5
e86b7d7557a988708678fa9488d12213

SHA1
ff82c559bf9a56ca135ac33167498b6172e1998a

SHA256
9576b10ada5e0e564bb8e7bb819ea8af0e9445dd7c980e6cd91769105e23a358

SHA512
ee54b2c4919084ba4ad68c0e01094af121aa51f386dbc20ae6d3ea55f13d0c5ef07dd66722e6d2bd542a3666d6d72de61ef3651f1eeb936d04640504452650f5

Download Submit
memory/2368-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2368-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2368-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2368-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2368-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3012-17-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/3012-24-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/3012-25-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download