088b09cae5797725bf5e3b46fdbfaa84e92d2ba746596bc678aa2326c31a3a74

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
12-03-2024 19:40

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General

Target

2024-03-12_5c8fc3b10b3c4c704e725bafe35a9450_cryptolocker.exe
Size

50KB
MD5

5c8fc3b10b3c4c704e725bafe35a9450
SHA1

9d2309a02dfcba93670b1fae54205ac2dd43e634
SHA256

088b09cae5797725bf5e3b46fdbfaa84e92d2ba746596bc678aa2326c31a3a74
SHA512

173e02240f76e777b5ef8a17acbd372016a81a6ea9e23b23ba4e450b4d23e37e47ba225ed596f2e5baf037da177891e5956c4123895908ae3bade89979cf51de
SSDEEP

768:79inqyNR/QtOOtEvwDpjBK/rJ+Nw8qnTHG4k:79mqyNhQMOtEvwDpjBxe8GGR

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/3016-1-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000d00000001232e-11.dat	CryptoLocker_rule2
behavioral1/memory/3016-14-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2852-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/3016-1-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000d00000001232e-11.dat	CryptoLocker_set1
behavioral1/memory/3016-14-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2852-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2852	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
3016	2024-03-12_5c8fc3b10b3c4c704e725bafe35a9450_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 2852	3016	2024-03-12_5c8fc3b10b3c4c704e725bafe35a9450_cryptolocker.exe	28
PID 3016 wrote to memory of 2852	3016	2024-03-12_5c8fc3b10b3c4c704e725bafe35a9450_cryptolocker.exe	28
PID 3016 wrote to memory of 2852	3016	2024-03-12_5c8fc3b10b3c4c704e725bafe35a9450_cryptolocker.exe	28
PID 3016 wrote to memory of 2852	3016	2024-03-12_5c8fc3b10b3c4c704e725bafe35a9450_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-12_5c8fc3b10b3c4c704e725bafe35a9450_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-12_5c8fc3b10b3c4c704e725bafe35a9450_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:2852

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
6f84358cbd2a1a63bc3a5730bf50ff7b

SHA1
17fac48bca6c3a80c3ef41dd361a029ba6e54c16

SHA256
cd827c5aa59c9f944d0554dcf1e5c83e55b1ce23e6b5041a348d8eedbfec3ae9

SHA512
8924610fc55acc510bd93426035b427cd81610f5dba5ae4a8da5f3f544864a8321101c2518cad8516560f1fa999674718afd897884edd9fdd937401531a39efe

Download Submit
memory/2852-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2852-18-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2852-21-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/3016-1-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3016-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/3016-2-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/3016-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/3016-14-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download