8fa402e824670ae183cab0a5f8e4b7fca1fe18fdbb1970e862412e193a8fcef9

Analysis

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

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
06/06/2024, 21:29

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General

Target

2024-06-06_765fee9c9480f14a16f4957c0ac0a7c2_cryptolocker.exe
Size

43KB
MD5

765fee9c9480f14a16f4957c0ac0a7c2
SHA1

c3491f2d3733baad27aa7757816e194501775ab0
SHA256

8fa402e824670ae183cab0a5f8e4b7fca1fe18fdbb1970e862412e193a8fcef9
SHA512

b7a2eb0f46cd5b4ce18b2e740f39ed70ef915f748f17473bc3b9e048736c7202bc7bbbf3d8819b4746bdfd5a155bd97781a1767bcad4c9a247c280c6fbdd0117
SSDEEP

768:TS5nQJ24LR7tOOtEvwDpjGqPhqlcnvgpnY1n9A:m5nkFNMOtEvwDpjG8hgpY19A

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2736-8-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b0000000144e4-11.dat	CryptoLocker_rule2
behavioral1/memory/2736-13-0x0000000001DD0000-0x0000000001DDE000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2340-17-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2340-27-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 2 IoCs

resource	yara_rule
behavioral1/memory/2736-8-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2340-27-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral1/memory/2736-8-0x0000000000500000-0x000000000050E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000b0000000144e4-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2736-13-0x0000000001DD0000-0x0000000001DDE000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2340-17-0x0000000000500000-0x000000000050E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2340-27-0x0000000000500000-0x000000000050E000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2340	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2736	2024-06-06_765fee9c9480f14a16f4957c0ac0a7c2_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 2736 wrote to memory of 2340	2736	2024-06-06_765fee9c9480f14a16f4957c0ac0a7c2_cryptolocker.exe	28
PID 2736 wrote to memory of 2340	2736	2024-06-06_765fee9c9480f14a16f4957c0ac0a7c2_cryptolocker.exe	28
PID 2736 wrote to memory of 2340	2736	2024-06-06_765fee9c9480f14a16f4957c0ac0a7c2_cryptolocker.exe	28
PID 2736 wrote to memory of 2340	2736	2024-06-06_765fee9c9480f14a16f4957c0ac0a7c2_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-06_765fee9c9480f14a16f4957c0ac0a7c2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-06_765fee9c9480f14a16f4957c0ac0a7c2_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2736
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2340

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
43KB

MD5
79a7023236619cebac187511144b99f7

SHA1
c6b87f9e101f3f8191325669c27771fe2fe7a024

SHA256
c283daa9debf37fd9c8bacbef521d6ed793232dfc868c69606a3ea0f02ded8d1

SHA512
8bdc7c46d1e0958aeb2d0f344179adf053a89fa7bf80e8ca63965e69bdddc06dd96067daddaaec2b5bb05e27dc132e89937c72360d139858b0657c5d6d1869a5

Download Submit
memory/2340-17-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2340-19-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2340-26-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2340-27-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2736-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2736-1-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2736-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2736-8-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2736-13-0x0000000001DD0000-0x0000000001DDE000-memory.dmp

Filesize
56KB

Download