834216b44abc968d18e20e4b51cafbe3d8508f072de840e8f92ffe58f69d32e5

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10/03/2024, 05:41

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General

Target

2024-03-10_2e33cd4de911deef9a8906bac14bbc1c_cryptolocker.exe
Size

45KB
MD5

2e33cd4de911deef9a8906bac14bbc1c
SHA1

1766a5b61749955229823ca4ba8772e5b8956b1a
SHA256

834216b44abc968d18e20e4b51cafbe3d8508f072de840e8f92ffe58f69d32e5
SHA512

fd1317ff7a3ac735a712c1ed9ced0c0fd60f2236126860da1a7049b92282b606666d92076873ba87abf7913e330eaaea9cd7704397974245dc33f17df9bf04bf
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6j4AYsqSh+DETkedmhXSI:YGzl5wjRQBBOsP1QMOtEvwDpjl39+D+6

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2216-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000f00000001225b-11.dat	CryptoLocker_rule2
behavioral1/memory/2216-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1932-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2216-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000f00000001225b-11.dat	CryptoLocker_set1
behavioral1/memory/2216-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1932-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1932	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2216	2024-03-10_2e33cd4de911deef9a8906bac14bbc1c_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 2216 wrote to memory of 1932	2216	2024-03-10_2e33cd4de911deef9a8906bac14bbc1c_cryptolocker.exe	28
PID 2216 wrote to memory of 1932	2216	2024-03-10_2e33cd4de911deef9a8906bac14bbc1c_cryptolocker.exe	28
PID 2216 wrote to memory of 1932	2216	2024-03-10_2e33cd4de911deef9a8906bac14bbc1c_cryptolocker.exe	28
PID 2216 wrote to memory of 1932	2216	2024-03-10_2e33cd4de911deef9a8906bac14bbc1c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-10_2e33cd4de911deef9a8906bac14bbc1c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-10_2e33cd4de911deef9a8906bac14bbc1c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2216
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1932

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
45KB

MD5
36f48580bfa283a3150f9c4f2ee35252

SHA1
65909cb98e8da1e332cff8c0f87450b2ebe5d441

SHA256
b5f13aa620035978db6722b69e36f107e8e4da9d0d8ec56ec0f162386bd0913f

SHA512
e0bd2fb3da6f1516dbcf8a9ee0f4aba2959dacab6efd4d77198f563143d7a6abef5160fabbac1ff4080d7fac3e6e9623d8d4cedeadef02694ae2a7faec81f4f4

Download Submit
memory/1932-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1932-19-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/1932-20-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2216-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2216-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2216-3-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2216-2-0x0000000000510000-0x0000000000516000-memory.dmp

Filesize
24KB

Download
memory/2216-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2216-14-0x0000000002800000-0x000000000280B000-memory.dmp

Filesize
44KB

Download