08ad67c3d5ebb9053091525202174f1a08d256345e0223129b20d2c6857c7eba

Analysis

max time kernel
151s
max time network
159s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28-02-2024 22:29

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General

Target

2024-02-28_bd714e4cdc618ea3aa54c1f5895610e2_cryptolocker.exe
Size

50KB
MD5

bd714e4cdc618ea3aa54c1f5895610e2
SHA1

23d4894733cfefc583bbb0e0fb96094db93ad368
SHA256

08ad67c3d5ebb9053091525202174f1a08d256345e0223129b20d2c6857c7eba
SHA512

f5fda78424490c9811dbedcf2eed5909c4bd2a71767dd53a4d27030229080f28633f507f4bca5534f03a8a2c8958aa0ebc78aa58acd66a59641b47e1d73d0d8d
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjeJQ7pojakNe:V6a+pOtEvwDpj9

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012255-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012255-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2640	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
932	2024-02-28_bd714e4cdc618ea3aa54c1f5895610e2_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 932 wrote to memory of 2640	932	2024-02-28_bd714e4cdc618ea3aa54c1f5895610e2_cryptolocker.exe	28
PID 932 wrote to memory of 2640	932	2024-02-28_bd714e4cdc618ea3aa54c1f5895610e2_cryptolocker.exe	28
PID 932 wrote to memory of 2640	932	2024-02-28_bd714e4cdc618ea3aa54c1f5895610e2_cryptolocker.exe	28
PID 932 wrote to memory of 2640	932	2024-02-28_bd714e4cdc618ea3aa54c1f5895610e2_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-28_bd714e4cdc618ea3aa54c1f5895610e2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-28_bd714e4cdc618ea3aa54c1f5895610e2_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:932
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2640

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
50KB

MD5
71ce06a82abb7a18c5c338d95f15330f

SHA1
1a76c8f9a81390f56b02db9046248d12cdbb9a12

SHA256
5da49b89035fb95877c7756860d115a6f3caf8e7a107cb211878c35a6c84cc69

SHA512
5da8dc5a9ba988aa538a6b238cf54064ddb4977a41a625b1ec2f035064485adea4d671934abc0a98c390cda25afc5e2a601f92141a321231ab03505b2300757c

Download Submit
memory/932-0-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/932-1-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/932-7-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2640-15-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2640-17-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download