3b13b8f042d4d1011e92fac47c6c723a089a9d7421b320457c88c9b38ac4d9ac

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23/02/2024, 07:03

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General

Target

2024-02-23_eb4f98234a64499a5014cc801151d69f_cryptolocker.exe
Size

43KB
MD5

eb4f98234a64499a5014cc801151d69f
SHA1

9be7ef5e4d5b157f611692884589278febb4dbc5
SHA256

3b13b8f042d4d1011e92fac47c6c723a089a9d7421b320457c88c9b38ac4d9ac
SHA512

1b5b3e482f48e20afac7fb1c15d7d95ef753629c51ca5e93f46b435220b6f612861b1e2b9e1b4437ad7fe5aacde90d25d7120fffd86a015372064f61f9606c00
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4REL+cc66nkp1:vj+jsMQMOtEvwDpj5HW5Ii1

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012247-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012247-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2944	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2492	2024-02-23_eb4f98234a64499a5014cc801151d69f_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 2492 wrote to memory of 2944	2492	2024-02-23_eb4f98234a64499a5014cc801151d69f_cryptolocker.exe	28
PID 2492 wrote to memory of 2944	2492	2024-02-23_eb4f98234a64499a5014cc801151d69f_cryptolocker.exe	28
PID 2492 wrote to memory of 2944	2492	2024-02-23_eb4f98234a64499a5014cc801151d69f_cryptolocker.exe	28
PID 2492 wrote to memory of 2944	2492	2024-02-23_eb4f98234a64499a5014cc801151d69f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-23_eb4f98234a64499a5014cc801151d69f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_eb4f98234a64499a5014cc801151d69f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2492
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2944

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
44KB

MD5
ae9aab66256a7f62bec115e3f9399171

SHA1
dfaa3cf6b1e542eec305c81256f30a9dd5884934

SHA256
284e50d8fccda96397f812914cc8f830e4ac0049bd153ce5608d44cdbcc8a4f8

SHA512
24a9fd531f1e57dc42bf09fdaf4cda973d7aa4143a4e933f49b550244aae685087d6d10ad162ac8030a26ecd41e16cdf849c76fa29e1cc4d6df05bb72e858f37

Download Submit
memory/2492-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2492-1-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2492-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download