4edbd073bc89ba1ffde8b084e166d779b522e8fe3d78a5801bf5de1fa5df268f

Analysis

max time kernel
140s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
27/03/2024, 19:29

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General

Target

2024-03-27_489ec5d6659d6a33c0243e298ac561ff_cryptolocker.exe
Size

35KB
MD5

489ec5d6659d6a33c0243e298ac561ff
SHA1

5c2ebbea995be24a7ccd896325b1e4849879434b
SHA256

4edbd073bc89ba1ffde8b084e166d779b522e8fe3d78a5801bf5de1fa5df268f
SHA512

e4711c0351fad0e8dd1c636f0ac1ee42c65cc2b7ad395d00fabaf7d9080da37f52d7472b7813aa3fe99eed7f5e668a955b9e12706401e9cc7ca8937f3c475614
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6WaJIOc+UPPbNI:YGzl5wjRQBBOsP1QMOtEvwDpjgar2I

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1732-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c000000012267-11.dat	CryptoLocker_rule2
behavioral1/memory/1732-12-0x00000000006B0000-0x00000000006BB000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1732-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2392-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1732-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c000000012267-11.dat	CryptoLocker_set1
behavioral1/memory/1732-12-0x00000000006B0000-0x00000000006BB000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1732-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2392-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2392	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1732	2024-03-27_489ec5d6659d6a33c0243e298ac561ff_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 1732 wrote to memory of 2392	1732	2024-03-27_489ec5d6659d6a33c0243e298ac561ff_cryptolocker.exe	28
PID 1732 wrote to memory of 2392	1732	2024-03-27_489ec5d6659d6a33c0243e298ac561ff_cryptolocker.exe	28
PID 1732 wrote to memory of 2392	1732	2024-03-27_489ec5d6659d6a33c0243e298ac561ff_cryptolocker.exe	28
PID 1732 wrote to memory of 2392	1732	2024-03-27_489ec5d6659d6a33c0243e298ac561ff_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-27_489ec5d6659d6a33c0243e298ac561ff_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-27_489ec5d6659d6a33c0243e298ac561ff_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1732
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2392

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
35KB

MD5
558d2cfb6e8417eeee40336db34f3389

SHA1
4a56bd9a46b67fc5c0a1866378283c63a4c8d813

SHA256
d1d483ba008288c2b751fde534aad2348fe3a431a2b2d3dc7618b98423c2d569

SHA512
554acc3ef2d7513f906d3abe6c86193f723f9e3fc1db85a956ab50ed51681ef28831e7cf7f771a5e48df42b804bbee30988d688cf4a1e86a97631de29f0612f2

Download Submit
memory/1732-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1732-1-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1732-3-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/1732-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1732-12-0x00000000006B0000-0x00000000006BB000-memory.dmp

Filesize
44KB

Download
memory/1732-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2392-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download