67f7bcdd4ef1a5ae94ff90e3906a9bf0d4b97248d6fe22e07cfc1e58b3c08586

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
25/05/2024, 22:02

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General

Target

2024-05-25_e3acedaa04e0b94723b97323b060c3f2_cryptolocker.exe
Size

66KB
MD5

e3acedaa04e0b94723b97323b060c3f2
SHA1

7ba633e60d636aa9e38a8f01e72fe29b7cedb56b
SHA256

67f7bcdd4ef1a5ae94ff90e3906a9bf0d4b97248d6fe22e07cfc1e58b3c08586
SHA512

9a69218ba5801045fc7e0a1cdc7919e7f83fce12f633e86b76bd793e075ff937e31916bc312672d2a70fa2249a80c0cfb3cba13a769bec56293cf354536e43ba
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2l9tMPvdfGy7:TCjsIOtEvwDpj5HE/OUHnSMYK

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1756-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000014323-11.dat	CryptoLocker_rule2
behavioral1/memory/1756-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3048-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3048-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1756-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000014323-11.dat	CryptoLocker_set1
behavioral1/memory/1756-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3048-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3048-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3048	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1756	2024-05-25_e3acedaa04e0b94723b97323b060c3f2_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 1756 wrote to memory of 3048	1756	2024-05-25_e3acedaa04e0b94723b97323b060c3f2_cryptolocker.exe	28
PID 1756 wrote to memory of 3048	1756	2024-05-25_e3acedaa04e0b94723b97323b060c3f2_cryptolocker.exe	28
PID 1756 wrote to memory of 3048	1756	2024-05-25_e3acedaa04e0b94723b97323b060c3f2_cryptolocker.exe	28
PID 1756 wrote to memory of 3048	1756	2024-05-25_e3acedaa04e0b94723b97323b060c3f2_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-25_e3acedaa04e0b94723b97323b060c3f2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-25_e3acedaa04e0b94723b97323b060c3f2_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1756
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3048

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
66KB

MD5
f840f28bb381595e9e7b6a450e2280c7

SHA1
09821a8524d4ea4e591cabe80b7e0bf0e27a1007

SHA256
3239e63543512c8ce7d79d69a94ace38cb504803e860dc6ebf9e75a32fdfa734

SHA512
a395dc9cc948328760052824c9149e5799b56ca7ebc1b24fe4f2a8260285b59b068e7c76c81f63efb36c86d75b0601f103bdb3df62a9d394601f81659009c55c

Download Submit
memory/1756-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/1756-1-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/1756-2-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/1756-9-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/1756-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/3048-16-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/3048-18-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/3048-25-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3048-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download