e5c3bfcb0cdbe64f06f2603c7e511c4cf36566769dbb25ead97f36a62bfe28a2

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
03/05/2024, 05:26

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General

Target

2024-05-03_0906d4840f4b6846ea5642815effc675_cryptolocker.exe
Size

44KB
MD5

0906d4840f4b6846ea5642815effc675
SHA1

6ef08b67b449765930c9313a98211e0dd526700a
SHA256

e5c3bfcb0cdbe64f06f2603c7e511c4cf36566769dbb25ead97f36a62bfe28a2
SHA512

509389a2d2cfeda437858a7ca570fdc17066cd0cae0c540206a887b9f42b680bcd88562c03d7395ecb9a66d152ae490c4fd72179197aac154f16fd9493627c31
SSDEEP

768:TS5nQJ24LR7tOOtEvwDpjGqPhqlcnvhx5/xFRp5jvbX:m5nkFNMOtEvwDpjG8hhXj53X

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1628-1-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c000000014454-11.dat	CryptoLocker_rule2
behavioral1/memory/1628-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2532-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2532-25-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/1628-1-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1628-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2532-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2532-25-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral1/memory/1628-1-0x0000000000500000-0x000000000050E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000c000000014454-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1628-15-0x0000000000500000-0x000000000050E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2532-16-0x0000000000500000-0x000000000050E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2532-25-0x0000000000500000-0x000000000050E000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2532	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1628	2024-05-03_0906d4840f4b6846ea5642815effc675_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 1628 wrote to memory of 2532	1628	2024-05-03_0906d4840f4b6846ea5642815effc675_cryptolocker.exe	28
PID 1628 wrote to memory of 2532	1628	2024-05-03_0906d4840f4b6846ea5642815effc675_cryptolocker.exe	28
PID 1628 wrote to memory of 2532	1628	2024-05-03_0906d4840f4b6846ea5642815effc675_cryptolocker.exe	28
PID 1628 wrote to memory of 2532	1628	2024-05-03_0906d4840f4b6846ea5642815effc675_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-03_0906d4840f4b6846ea5642815effc675_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-03_0906d4840f4b6846ea5642815effc675_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1628
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2532

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
44KB

MD5
dfc49e2b5af2a25bc79c1b91ea4fecce

SHA1
11dbbecd6ae2b9dcfe30b06dc7c410c731337f65

SHA256
25f9aeb80fb9bc4fd4d992777a008ccf193b9fc98e61718b041761c2d437cf0e

SHA512
00159f5a5d1caec774ba54417c1f18c95b204cab3bf0b9ffc835febec9246683c97208d563d23dfef6e7f21e6fb3b2888bbdffa1a1b4434e5d9c0121f72304ce

Download Submit
memory/1628-1-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/1628-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1628-2-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/1628-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1628-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2532-16-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2532-18-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2532-25-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download