dc029e968124764e890d34012b47a56097a5ce9e69cb9d8593caf9b5437d03c4

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
06/03/2024, 15:50

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General

Target

2024-03-06_d7262fb06d4368b977ac068d74a68a17_cryptolocker.exe
Size

39KB
MD5

d7262fb06d4368b977ac068d74a68a17
SHA1

a2a88d949c553506cb4946181c8035890608ea50
SHA256

dc029e968124764e890d34012b47a56097a5ce9e69cb9d8593caf9b5437d03c4
SHA512

abf1c43a6538fff48b76e3d3273ba57ee651f4984a09f166d44fb40017c311fb79f3f954cd8ec3d38f13cca142418d115997b50a8715e9896552e2e85ceb3aa6
SSDEEP

768:XS5nQJ24LR1bytOOtEvwDpj66BLtldJQp3v2Z:i5nkFGMOtEvwDpjn/JQxM

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2656-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000d00000001224c-11.dat	CryptoLocker_rule2
behavioral1/memory/2656-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2632-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2632-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral1/memory/2656-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2632-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2632-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral1/memory/2656-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000d00000001224c-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2656-15-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2632-17-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2632-26-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2632	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2656	2024-03-06_d7262fb06d4368b977ac068d74a68a17_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 2656 wrote to memory of 2632	2656	2024-03-06_d7262fb06d4368b977ac068d74a68a17_cryptolocker.exe	28
PID 2656 wrote to memory of 2632	2656	2024-03-06_d7262fb06d4368b977ac068d74a68a17_cryptolocker.exe	28
PID 2656 wrote to memory of 2632	2656	2024-03-06_d7262fb06d4368b977ac068d74a68a17_cryptolocker.exe	28
PID 2656 wrote to memory of 2632	2656	2024-03-06_d7262fb06d4368b977ac068d74a68a17_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-06_d7262fb06d4368b977ac068d74a68a17_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-06_d7262fb06d4368b977ac068d74a68a17_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2656
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2632

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
40KB

MD5
ff4f606402cbef8399f5b88809a776cb

SHA1
fd1070bcbadd1d865eebb79ee2a09c440e186866

SHA256
322a3cd5825c49885124aa4959e0f8f0c06ae79db46435d8f8b1a6ed7ffc5390

SHA512
e68fab65e2280d15730c6d828e0ba317b44938ce9dc6d2d932b393e58f0030deed9b10406c15982a58e1a056eff2584eb12399a62e18c559c46cb21ab580f9e7

Download Submit
memory/2632-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2632-18-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2632-23-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2632-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2656-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2656-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2656-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2656-4-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2656-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download