f5aca8d29823777be0033e54bfebcfbceac064c3cc64bb237ab04ec5fdfa769e

Analysis

max time kernel
149s
max time network
151s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
18/03/2024, 18:24

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-03-18_0861d64aebfd466278e5beacea816f85_cryptolocker.exe
Size

63KB
MD5

0861d64aebfd466278e5beacea816f85
SHA1

8bee82115d614aa7e3668e8c42d875522600912e
SHA256

f5aca8d29823777be0033e54bfebcfbceac064c3cc64bb237ab04ec5fdfa769e
SHA512

3d9082f478f888be1701e87561eb9f53244fe6024633b9e2e1bfc23e1296577dffc247de82b44864ca3de1f72eaf2455d0e2b8b8c04ae7a7b085df3614cb49d0
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2l9tMPvBk:TCjsIOtEvwDpj5HE/OUHnSMYR

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1304-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1304-14-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c000000012226-11.dat	CryptoLocker_rule2
behavioral1/memory/2960-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2960-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1304-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1304-14-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c000000012226-11.dat	CryptoLocker_set1
behavioral1/memory/2960-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2960-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2960	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1304	2024-03-18_0861d64aebfd466278e5beacea816f85_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 1304 wrote to memory of 2960	1304	2024-03-18_0861d64aebfd466278e5beacea816f85_cryptolocker.exe	28
PID 1304 wrote to memory of 2960	1304	2024-03-18_0861d64aebfd466278e5beacea816f85_cryptolocker.exe	28
PID 1304 wrote to memory of 2960	1304	2024-03-18_0861d64aebfd466278e5beacea816f85_cryptolocker.exe	28
PID 1304 wrote to memory of 2960	1304	2024-03-18_0861d64aebfd466278e5beacea816f85_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-18_0861d64aebfd466278e5beacea816f85_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-18_0861d64aebfd466278e5beacea816f85_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1304
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2960

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

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
63KB

MD5
7b685e5b01b14b00a3683e407457da4f

SHA1
421e206bdf33dc8686c2857ece2cf20a5b3ebdc9

SHA256
09857d680cd3216e338398fd0d6d5ed47bd4e946913d2ab39e2d2bc085f6a0ed

SHA512
b664ac7a7f487e9b5808f9808aae6e2bbbf607cac386452ee6ea706608d51a621301c36a440024be558375be1e0d66962326ba74151fbf948cf0f96d324e15de

Download Submit
memory/1304-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/1304-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1304-2-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/1304-4-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1304-14-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2960-16-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2960-18-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2960-21-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2960-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download