fa0e54a543b4ff39baffe7c8aaa17a54c9c855b41f63443369a3294c898cc0de

Analysis

max time kernel
148s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
11-04-2024 07:43

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General

Target

2024-04-11_a2786f2fb148260422762bf805f04f99_cryptolocker.exe
Size

122KB
MD5

a2786f2fb148260422762bf805f04f99
SHA1

5c19fdb478fb56c154679f99860d619d73e33d56
SHA256

fa0e54a543b4ff39baffe7c8aaa17a54c9c855b41f63443369a3294c898cc0de
SHA512

5dddeb4beb57a445f56363cea97c13c7389f488a283cc6ca3b82c519fdbea67b1d956c7acf974c9308692ed7f5857ad49c3aa3a922e22b7a60349e66c967a1e5
SSDEEP

1536:u6QFElP6n+gWMOtEvwDpjJGYQbN/PKwMgP:u6a++OtEvwDpj6zL

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012247-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012247-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2744	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2312	2024-04-11_a2786f2fb148260422762bf805f04f99_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 2312 wrote to memory of 2744	2312	2024-04-11_a2786f2fb148260422762bf805f04f99_cryptolocker.exe	28
PID 2312 wrote to memory of 2744	2312	2024-04-11_a2786f2fb148260422762bf805f04f99_cryptolocker.exe	28
PID 2312 wrote to memory of 2744	2312	2024-04-11_a2786f2fb148260422762bf805f04f99_cryptolocker.exe	28
PID 2312 wrote to memory of 2744	2312	2024-04-11_a2786f2fb148260422762bf805f04f99_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-11_a2786f2fb148260422762bf805f04f99_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-11_a2786f2fb148260422762bf805f04f99_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2312
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2744

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
123KB

MD5
06b8850814c07f22279663c847a55999

SHA1
c64272b9c7c9acb70ebd9628fbf3c26533234947

SHA256
ea5384a831c93848fc4d7eb70d7d58ac91a16578df1cee83640b6fd43e7f7cc0

SHA512
5270e9de9a15d7c095ea40f5d86374bd5b68fb8652d16f9b53b349b2deb8f3adae35856299651c485b5185c193f362694eb3deca0bc4a735fabb7d981c1fb57c

Download Submit
memory/2312-0-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2312-1-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2312-3-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2744-15-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2744-16-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download