e5205f4e0a86b4f25ee0a8f96c1d10337d819f06b9b2952719be7a578b219ac2

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
21/02/2024, 13:27

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General

Target

2024-02-21_2140ab81891fa3d1743134b2ce0f4c5c_cryptolocker.exe
Size

98KB
MD5

2140ab81891fa3d1743134b2ce0f4c5c
SHA1

cac88d21a9bd022c3d3bb6f7b37e491ac8171301
SHA256

e5205f4e0a86b4f25ee0a8f96c1d10337d819f06b9b2952719be7a578b219ac2
SHA512

8ab650f99c9830d66220e033dedd98e1a44247e41f99970943c481b3048f3134891f89a59a158df452954b9ceafcfd4f93762d4a22a09910df7fd4e02bd3e58c
SSDEEP

1536:26QFElP6n+gBQMOtEvwDpjQGYQbN/PKwNCWwAK:26a+2OtEvwDpjtz+

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001223f-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001223f-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2720	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
3016	2024-02-21_2140ab81891fa3d1743134b2ce0f4c5c_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 3016 wrote to memory of 2720	3016	2024-02-21_2140ab81891fa3d1743134b2ce0f4c5c_cryptolocker.exe	28
PID 3016 wrote to memory of 2720	3016	2024-02-21_2140ab81891fa3d1743134b2ce0f4c5c_cryptolocker.exe	28
PID 3016 wrote to memory of 2720	3016	2024-02-21_2140ab81891fa3d1743134b2ce0f4c5c_cryptolocker.exe	28
PID 3016 wrote to memory of 2720	3016	2024-02-21_2140ab81891fa3d1743134b2ce0f4c5c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-21_2140ab81891fa3d1743134b2ce0f4c5c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-21_2140ab81891fa3d1743134b2ce0f4c5c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3016
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2720

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
99KB

MD5
36d6fdfc288096b2426caecf047f28c5

SHA1
31b311ad8790b49523ca77aecb6c94c7f8a3e835

SHA256
2890a25a608888d0e52187aaab12ee45c190bc26d9d0c8c2e2ee0567f68dcc91

SHA512
3213d95d8c3481ed112bd656645bb7afa9e81b2ec567243dffd8a0f1bdebff6253ca15af31da60a9636daabadb970b69b56281a449b4a3f77a41ff54faf97265

Download Submit
memory/2720-15-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2720-21-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3016-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/3016-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3016-3-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download