12dc3033098c2861e9de32711bd29a0869f33a4808aefc571ac53ce30c02e068

Analysis

max time kernel
151s
max time network
145s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
11/04/2024, 06:28

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General

Target

2024-04-11_dddc8ebf50b2b020d0c568ee9e9d69e7_cryptolocker.exe
Size

45KB
MD5

dddc8ebf50b2b020d0c568ee9e9d69e7
SHA1

96f47b79f22bd4ae34686a8f6db5a8098cc27772
SHA256

12dc3033098c2861e9de32711bd29a0869f33a4808aefc571ac53ce30c02e068
SHA512

ad314190c25ce1bd40edf5fd43a65daccfab4c7e6c2f9bd8ed2c96d8aee0943fb567725330b78ffcd708fdc7a84e27680406ff2f4350cc6da43afc39308dcf77
SSDEEP

768:P6LsoVEeegiZPvEhHSP+gp/QtOOtEvwDpjBBMLZdzuqpXsiE8Wq/Dpko:P6Q0ElP6G+gJQMOtEvwDpjB8WMlL

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2840-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a000000012248-11.dat	CryptoLocker_rule2
behavioral1/memory/2840-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3056-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3056-25-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2840-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a000000012248-11.dat	CryptoLocker_set1
behavioral1/memory/2840-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3056-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3056-25-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3056	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2840	2024-04-11_dddc8ebf50b2b020d0c568ee9e9d69e7_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 2840 wrote to memory of 3056	2840	2024-04-11_dddc8ebf50b2b020d0c568ee9e9d69e7_cryptolocker.exe	28
PID 2840 wrote to memory of 3056	2840	2024-04-11_dddc8ebf50b2b020d0c568ee9e9d69e7_cryptolocker.exe	28
PID 2840 wrote to memory of 3056	2840	2024-04-11_dddc8ebf50b2b020d0c568ee9e9d69e7_cryptolocker.exe	28
PID 2840 wrote to memory of 3056	2840	2024-04-11_dddc8ebf50b2b020d0c568ee9e9d69e7_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-11_dddc8ebf50b2b020d0c568ee9e9d69e7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-11_dddc8ebf50b2b020d0c568ee9e9d69e7_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2840
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3056

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
45KB

MD5
dcb7d9c1d9abd55da42ffe75a280da96

SHA1
3fcf80c09199b1b5da26e042e221be62d8276c67

SHA256
3742b42c471706edd7681e4487a64c34c74793a058215e5329ebadf626910a78

SHA512
885a470cca36cf0bfab3526af597dd90e2895bef7091460adcb00a3b82700bf5571b64dfbfe2da17382e3b0bf202cf83d43ac7f78bdc6fa0bb627be6456780d9

Download Submit
memory/2840-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2840-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2840-3-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2840-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2840-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3056-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3056-25-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download