54c232cb955b85926c58bb8b9b2b84d220dc69a1b2c961a2ae6a40e704ed6fb5

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
24/02/2024, 07:26

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General

Target

2024-02-24_29653b792cec6720949c67ec569f8b3a_cryptolocker.exe
Size

40KB
MD5

29653b792cec6720949c67ec569f8b3a
SHA1

b22f3f1f44deb65180f7df0d233ec272b6e6a3be
SHA256

54c232cb955b85926c58bb8b9b2b84d220dc69a1b2c961a2ae6a40e704ed6fb5
SHA512

7a67aa68e1956457c60eeefaf5b0a7bc8f114e805d455e71a82652093e8f331c5dc42e9c29ae831b853aa5853373c8b4b13e4b7fc62a5dd09f39326c5959be82
SSDEEP

768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqh67/rl:6j+1NMOtEvwDpjrRbrl

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral2/memory/4724-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x00c300000001e848-13.dat	CryptoLocker_rule2
behavioral2/memory/4724-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/1200-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral2/memory/4724-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x00c300000001e848-13.dat	CryptoLocker_set1
behavioral2/memory/4724-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/memory/1200-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

resource	yara_rule
behavioral2/memory/4724-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x00c300000001e848-13.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4724-17-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/1200-26-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\Control Panel\International\Geo\Nation	2024-02-24_29653b792cec6720949c67ec569f8b3a_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1200	misid.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4724 wrote to memory of 1200	4724	2024-02-24_29653b792cec6720949c67ec569f8b3a_cryptolocker.exe	87
PID 4724 wrote to memory of 1200	4724	2024-02-24_29653b792cec6720949c67ec569f8b3a_cryptolocker.exe	87
PID 4724 wrote to memory of 1200	4724	2024-02-24_29653b792cec6720949c67ec569f8b3a_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-02-24_29653b792cec6720949c67ec569f8b3a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-24_29653b792cec6720949c67ec569f8b3a_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4724
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1200

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
40KB

MD5
63d7788a971026b24fd508812b420f8f

SHA1
a0fd335f6bbd9e2764c5699e9bd3dc3159b2ffc0

SHA256
fa44170b14290b2411f5d13d399357915c82f4f2a0215d76c35713ff406b0394

SHA512
5ee9a1c711f8055fc6c9676a328210a5bed989588100224c6766bdd2bbc00f30ea64644dbb63db073daf31ccf3a88b040c7159ac219d27f625a594dbbc0d58c1

Download Submit
memory/1200-19-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1200-20-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1200-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4724-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4724-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4724-2-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4724-3-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/4724-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download