01680dc0824125d792cb30fce5e8299815e6357ff7ea291f70a3bd0d04a687cb

Analysis

max time kernel
146s
max time network
147s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22-05-2024 23:33

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General

Target

2024-05-22_d446f151700cd528ac54073be4571d3c_cryptolocker.exe
Size

96KB
MD5

d446f151700cd528ac54073be4571d3c
SHA1

24aed672873c53337f7101ed3d1d22ec3f38e089
SHA256

01680dc0824125d792cb30fce5e8299815e6357ff7ea291f70a3bd0d04a687cb
SHA512

e83f24fc5aab1b1f6cbcd1cdd71cdec184520c27f7f3ee830bc25121621a598424bc9c5219db2493e9ee57357b9bb97457e2e63729a9b5294a8ed314de89128a
SSDEEP

768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRXrZSUfFKazNclMjNUvAcC:xj+VGMOtEvwDpjubwQEI8UtzNcO8AcC

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2988-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_rule2
behavioral1/memory/2988-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1184-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1184-25-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2988-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_set1
behavioral1/memory/2988-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1184-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1184-25-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2988-0-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
\Users\Admin\AppData\Local\Temp\misid.exe	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2988-15-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1184-16-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1184-25-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

Processes:

misid.exe

pid process

1184 misid.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-22_d446f151700cd528ac54073be4571d3c_cryptolocker.exe

pid process

2988 2024-05-22_d446f151700cd528ac54073be4571d3c_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1184	misid.exe

pid	process
2988	2024-05-22_d446f151700cd528ac54073be4571d3c_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-22_d446f151700cd528ac54073be4571d3c_cryptolocker.exe

description	pid	process	target process
PID 2988 wrote to memory of 1184	2988	2024-05-22_d446f151700cd528ac54073be4571d3c_cryptolocker.exe	misid.exe
PID 2988 wrote to memory of 1184	2988	2024-05-22_d446f151700cd528ac54073be4571d3c_cryptolocker.exe	misid.exe
PID 2988 wrote to memory of 1184	2988	2024-05-22_d446f151700cd528ac54073be4571d3c_cryptolocker.exe	misid.exe
PID 2988 wrote to memory of 1184	2988	2024-05-22_d446f151700cd528ac54073be4571d3c_cryptolocker.exe	misid.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-22_d446f151700cd528ac54073be4571d3c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_d446f151700cd528ac54073be4571d3c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2988

C:\Users\Admin\AppData\Local\Temp\misid.exe
"C:\Users\Admin\AppData\Local\Temp\misid.exe"
2⤵
- Executes dropped EXE
PID:1184

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

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Downloads

\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
96KB

MD5
36600251b7db43ab581d5ef5c5574ce9

SHA1
3c1f9d6b7fa1415863e3cf41c1ee239628c32027

SHA256
4062f6acc914136cede597351b3913b68250f5670414c7b4c906b57f43dceba1

SHA512
336856bc362e344c9d2d09048bd2de2bbb58185aa589592ae0c52f7ae3f97412678754d7dbc3df78c278265819b1fb51bfb2f5953bc7f0e5018aa342f782958f

Download Submit
memory/1184-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1184-18-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/1184-25-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2988-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2988-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2988-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2988-3-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2988-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download