baa1661ef0fb74775e7a5021aaf4a6c743ac775f4285e158f9d1d3cc65e2ec76

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
07-03-2024 21:45

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General

Target

2024-03-07_eac429a798a111df3c486348376ddd18_cryptolocker.exe
Size

47KB
MD5

eac429a798a111df3c486348376ddd18
SHA1

f7c4093cf76302e9adfd8a90adf7cccb5b6b0b3f
SHA256

baa1661ef0fb74775e7a5021aaf4a6c743ac775f4285e158f9d1d3cc65e2ec76
SHA512

bb716b3462203a85b8052526019acc5f5db4f73cbf9601ae7d5c0cb62e3fa094286749a6d442c498b9d5e337c081a08e680cf3975d59cca833efa17dc7c8ff0f
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6j4AYsqSh+DETkedmhTTHFACo:YGzl5wjRQBBOsP1QMOtEvwDpjl39+D+h

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/1692-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1692-14-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000012257-11.dat	CryptoLocker_rule2
behavioral1/memory/2336-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/1692-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1692-14-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000012257-11.dat	CryptoLocker_set1
behavioral1/memory/2336-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2336	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1692	2024-03-07_eac429a798a111df3c486348376ddd18_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 1692 wrote to memory of 2336	1692	2024-03-07_eac429a798a111df3c486348376ddd18_cryptolocker.exe	28
PID 1692 wrote to memory of 2336	1692	2024-03-07_eac429a798a111df3c486348376ddd18_cryptolocker.exe	28
PID 1692 wrote to memory of 2336	1692	2024-03-07_eac429a798a111df3c486348376ddd18_cryptolocker.exe	28
PID 1692 wrote to memory of 2336	1692	2024-03-07_eac429a798a111df3c486348376ddd18_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-07_eac429a798a111df3c486348376ddd18_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-07_eac429a798a111df3c486348376ddd18_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1692
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2336

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
47KB

MD5
0a47163aca53707d4068edbf8fee77f7

SHA1
a757fff13668dc6f0507c847e0e41039ff343774

SHA256
9325ef7f933d5c6d60fe38272229d468fc56a60d89f3f2bc3c34fbb20cf0bd68

SHA512
a8e8e0f8a0df54d3141f67265c7e3db1a6aff8ab03224998fa7f1d00821fc566bf63e03e6be6165a7b6da201f697efec54e75250b5269387f1619fae46addcac

Download Submit
memory/1692-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1692-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1692-2-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/1692-3-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1692-14-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2336-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2336-18-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2336-21-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download