e3525c160a945cefc0fc46494bce3ebb959f5ede63bd5e60c0fd7c23df6e077e

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
12/03/2024, 20:00

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General

Target

2024-03-12_d27aca1c914601d2acdd3e5e90982f08_cryptolocker.exe
Size

81KB
MD5

d27aca1c914601d2acdd3e5e90982f08
SHA1

f503c0984b3c5200c7c6be6dbc1ac3460c708b67
SHA256

e3525c160a945cefc0fc46494bce3ebb959f5ede63bd5e60c0fd7c23df6e077e
SHA512

5381927419ddd0638dc4a7d1e2434fb59cab7227209634a99454ba3bac3fb71567dcf51b416b9cb2b27c8f4f2f693fde67b6c6ed931bfe6fe36085536f26e67e
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMMA2:TCjsIOtEvwDpj5HE/OUHnSMR

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2084-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c000000012320-11.dat	CryptoLocker_rule2
behavioral1/memory/2084-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2272-25-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2084-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c000000012320-11.dat	CryptoLocker_set1
behavioral1/memory/2084-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2272-25-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2272	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2084	2024-03-12_d27aca1c914601d2acdd3e5e90982f08_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 2084 wrote to memory of 2272	2084	2024-03-12_d27aca1c914601d2acdd3e5e90982f08_cryptolocker.exe	28
PID 2084 wrote to memory of 2272	2084	2024-03-12_d27aca1c914601d2acdd3e5e90982f08_cryptolocker.exe	28
PID 2084 wrote to memory of 2272	2084	2024-03-12_d27aca1c914601d2acdd3e5e90982f08_cryptolocker.exe	28
PID 2084 wrote to memory of 2272	2084	2024-03-12_d27aca1c914601d2acdd3e5e90982f08_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-12_d27aca1c914601d2acdd3e5e90982f08_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-12_d27aca1c914601d2acdd3e5e90982f08_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2084
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2272

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
82KB

MD5
a5ae2c7c225024addbfb6bdf7ee15f2b

SHA1
264820e9be1ac243d3a80c7d5be13b3aff007410

SHA256
e57c3f2a196d614408ae71461189e5d4525ab723c56200d9e122ddc168cfe585

SHA512
a3c7bc14097237a799e9fc35b674aa312f227fa457e8bfdef6e8fecad97feba15dc463f69d449bc41583d13b75680bcaeb1a66569f9b4651d98275f94fed7bb7

Download Submit
memory/2084-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2084-1-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2084-2-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2084-8-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2084-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2272-17-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2272-18-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2272-25-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download