e48d582e292108da58197d78422540e4729f691f53834b572dbef7ba26ead602

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
23/01/2024, 18:44

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General

Target

2024-01-23_fee1c1e795102a8d5613851e3d9003e1_cryptolocker.exe
Size

68KB
MD5

fee1c1e795102a8d5613851e3d9003e1
SHA1

9646160eb0a4ccbebfdf33cddfc898a544c3806a
SHA256

e48d582e292108da58197d78422540e4729f691f53834b572dbef7ba26ead602
SHA512

6fa4ae94eafe19b48c12a1408cb5658b15aae723eee5a8ff8256fd8fb8f6ff9015f57139e5f576562eb9b28a1b328767a50d49391afb7d0eef8d00c8fbbdf7f9
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKU0:DW60sllyWOtEvwDpjwF85W

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2268-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000d0000000122a8-11.dat	CryptoLocker_rule2
behavioral1/memory/2268-12-0x00000000006D0000-0x00000000006DB000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2268-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1736-18-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2268-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000d0000000122a8-11.dat	CryptoLocker_set1
behavioral1/memory/2268-12-0x00000000006D0000-0x00000000006DB000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2268-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1736-18-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1736	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2268	2024-01-23_fee1c1e795102a8d5613851e3d9003e1_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 2268 wrote to memory of 1736	2268	2024-01-23_fee1c1e795102a8d5613851e3d9003e1_cryptolocker.exe	28
PID 2268 wrote to memory of 1736	2268	2024-01-23_fee1c1e795102a8d5613851e3d9003e1_cryptolocker.exe	28
PID 2268 wrote to memory of 1736	2268	2024-01-23_fee1c1e795102a8d5613851e3d9003e1_cryptolocker.exe	28
PID 2268 wrote to memory of 1736	2268	2024-01-23_fee1c1e795102a8d5613851e3d9003e1_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-23_fee1c1e795102a8d5613851e3d9003e1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-23_fee1c1e795102a8d5613851e3d9003e1_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2268
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1736

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\asih.exe

Filesize
68KB

MD5
d439fc9f4497aae3ef9dc53a97bb9338

SHA1
350270f285fc5cfe29d00d96a73417c62683bf76

SHA256
b7bb1b36ebf5e828c3a6539b3d6203eab7a49dbbd3a4e6d8694c75d0afa0a452

SHA512
3f8618c98c33d96bd1fb05dea1be20162eaab0e570b58fec3c6c4f42ccccf9f8649337f43d75be752e87411fa70e82ddfb5a42adfb73e5c29403cb2921ad2f83

Download Submit
memory/1736-19-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/1736-18-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1736-20-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2268-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2268-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2268-3-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2268-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2268-12-0x00000000006D0000-0x00000000006DB000-memory.dmp

Filesize
44KB

Download
memory/2268-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download