7a4afaa26fd575504b2f0507c09aa784801647a5127a5c18d6e239128fce3c37

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
02/06/2024, 02:26

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General

Target

2024-06-02_6c546e978cdbb452cc3fe5ce8dc3b33c_cryptolocker.exe
Size

97KB
MD5

6c546e978cdbb452cc3fe5ce8dc3b33c
SHA1

c081aa8f6503cd93cc0b2ff317d81470d1915ae3
SHA256

7a4afaa26fd575504b2f0507c09aa784801647a5127a5c18d6e239128fce3c37
SHA512

5a4c1a4e25c781246f0ae9f817779efabaf4a87f16e2f0aa7ed36fcc02d50eddb5464f189a82e04f7c8d8d933876e0fd3cc08cba6b944c25baf50fa40331a355
SSDEEP

768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRiWNa9mktJYT:xj+VGMOtEvwDpjubwQEIiVmksT

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1640-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1640-14-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c0000000167ef-11.dat	CryptoLocker_rule2
behavioral1/memory/2936-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2936-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1640-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1640-14-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c0000000167ef-11.dat	CryptoLocker_set1
behavioral1/memory/2936-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2936-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral1/memory/1640-0-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1640-14-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000c0000000167ef-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2936-16-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2936-26-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2936	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1640	2024-06-02_6c546e978cdbb452cc3fe5ce8dc3b33c_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 1640 wrote to memory of 2936	1640	2024-06-02_6c546e978cdbb452cc3fe5ce8dc3b33c_cryptolocker.exe	28
PID 1640 wrote to memory of 2936	1640	2024-06-02_6c546e978cdbb452cc3fe5ce8dc3b33c_cryptolocker.exe	28
PID 1640 wrote to memory of 2936	1640	2024-06-02_6c546e978cdbb452cc3fe5ce8dc3b33c_cryptolocker.exe	28
PID 1640 wrote to memory of 2936	1640	2024-06-02_6c546e978cdbb452cc3fe5ce8dc3b33c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-02_6c546e978cdbb452cc3fe5ce8dc3b33c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-02_6c546e978cdbb452cc3fe5ce8dc3b33c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1640
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2936

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
97KB

MD5
615c1a2e4baba6bf80a3a2888b234a91

SHA1
80258104c9ceec9456e47d78ea4f85ed74f0a695

SHA256
25fbd3c0ed438b6417a66f50e1021cd5d9d02f8f0409a2a184b0492cbf8edada

SHA512
ded0abc059715b02eaab1f3cc28e9ed5a8da5e4a8adf009cf7a4f94363eca42ced7ae0497632884a09ccc7e13068a4493519b91a24e716f83ef06334d8dfdb6d

Download Submit
memory/1640-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1640-1-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/1640-9-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/1640-2-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/1640-14-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2936-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2936-18-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2936-25-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2936-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download