976af9f46666ae98e7ea97348331b738ab0add0a114a3104b0c28ea958a13bd6

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
10/06/2024, 21:37

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General

Target

2024-06-10_acc8e1d2dd158a4262ba11210430edc5_cryptolocker.exe
Size

48KB
MD5

acc8e1d2dd158a4262ba11210430edc5
SHA1

32e80ab88004d0249f25b5706e7fe51ddba80f39
SHA256

976af9f46666ae98e7ea97348331b738ab0add0a114a3104b0c28ea958a13bd6
SHA512

6fa94c5e82333e19d701aee17aae96d7f19967a5f532477e524247f23685df2b5ded006afbec376a217b9c6dbf8d87d8c775e116a84e2099bb7d3b5d252a368d
SSDEEP

768:P6LsoVEeegiZPvEhHSP+gp/QtOOtEvwDpjBBMLZdzuqpXsiE8Wq/DpkclV:P6Q0ElP6G+gJQMOtEvwDpjB8WMlflV

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/3000-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c000000012671-11.dat	CryptoLocker_rule2
behavioral1/memory/3000-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3012-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3012-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/3000-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c000000012671-11.dat	CryptoLocker_set1
behavioral1/memory/3000-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3012-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3012-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3012	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
3000	2024-06-10_acc8e1d2dd158a4262ba11210430edc5_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 3000 wrote to memory of 3012	3000	2024-06-10_acc8e1d2dd158a4262ba11210430edc5_cryptolocker.exe	28
PID 3000 wrote to memory of 3012	3000	2024-06-10_acc8e1d2dd158a4262ba11210430edc5_cryptolocker.exe	28
PID 3000 wrote to memory of 3012	3000	2024-06-10_acc8e1d2dd158a4262ba11210430edc5_cryptolocker.exe	28
PID 3000 wrote to memory of 3012	3000	2024-06-10_acc8e1d2dd158a4262ba11210430edc5_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-10_acc8e1d2dd158a4262ba11210430edc5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-10_acc8e1d2dd158a4262ba11210430edc5_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3000
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3012

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
48KB

MD5
d50d20487f1dcc20f78c3972dec66415

SHA1
265d5d3c82125cf0a27b0e0210af5eefb1d68cca

SHA256
0ef80dffbd24ae0815cc8c779528fe9ff0a74b7389fec0696959848a7a10c7f0

SHA512
47792b0be0846a8c47bec915ae232bfd85faa54c9a8e56677011cc268a5922772d9f5492a69d38c76b3ed467bc888736acf54f98247b7fe0c9b1661eb90fd29d

Download Submit
memory/3000-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3000-9-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/3000-2-0x00000000008D0000-0x00000000008D6000-memory.dmp

Filesize
24KB

Download
memory/3000-1-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/3000-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3012-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3012-25-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3012-18-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/3012-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download