00c0f793735fa37aaca53bde8613a5cce97dcd882120a2442fdce35eaebf2492

Analysis

max time kernel
132s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09-06-2024 00:55

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General

Target

2024-06-09_6584d173e72cb90e90188004f14c9a04_cryptolocker.exe
Size

69KB
MD5

6584d173e72cb90e90188004f14c9a04
SHA1

07932a4f6dd2e0ed3cd4ee22c642540e2323813d
SHA256

00c0f793735fa37aaca53bde8613a5cce97dcd882120a2442fdce35eaebf2492
SHA512

51246a698d75ebef5805523166c35ff91fd5ae37c9b2b64048ca34b88fc4d8587fd89a49814461b598ff926700b4245cb2423ff99d0c01882a40633ba2ec1f15
SSDEEP

768:XS5nQJ24LR1bytOOtEvwDpjNbZ7uyA36S7MpxRXrZSUNsYD/dP:i5nkFGMOtEvwDpjNbwQEI8UZDV

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2036-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000d00000001340c-11.dat	CryptoLocker_rule2
behavioral1/memory/2036-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2520-25-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 2 IoCs

resource	yara_rule
behavioral1/memory/2036-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2520-25-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

resource	yara_rule
behavioral1/memory/2036-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000d00000001340c-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2036-15-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2520-25-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2520	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2036	2024-06-09_6584d173e72cb90e90188004f14c9a04_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 2036 wrote to memory of 2520	2036	2024-06-09_6584d173e72cb90e90188004f14c9a04_cryptolocker.exe	28
PID 2036 wrote to memory of 2520	2036	2024-06-09_6584d173e72cb90e90188004f14c9a04_cryptolocker.exe	28
PID 2036 wrote to memory of 2520	2036	2024-06-09_6584d173e72cb90e90188004f14c9a04_cryptolocker.exe	28
PID 2036 wrote to memory of 2520	2036	2024-06-09_6584d173e72cb90e90188004f14c9a04_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-09_6584d173e72cb90e90188004f14c9a04_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-09_6584d173e72cb90e90188004f14c9a04_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2036
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2520

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
70KB

MD5
f1e895f46a8e34b12b3ce44f36b419a2

SHA1
b199f2424614b5fab2cee8a6df6228fbbdb81048

SHA256
ea6f07afda43445b422fb2b98ffa9699f616771a10fe2dab11a58565b9548f2c

SHA512
f184ab20a6f2c8c4cdf21d2439d7e3d251e7cf9765d5061405e292c52e6442932b798db1333e850e572fc88a14eece45f2715243e125c8b7cef618754743dabd

Download Submit
memory/2036-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2036-1-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2036-2-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2036-3-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2036-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2520-17-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2520-25-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2520-24-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download