b9ae90a0b57ebb8939a6ff026207eccb5a099d4db5d53a92299af7061264876b

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
01/02/2024, 09:24

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General

Target

2024-02-01_68b05e5dde579a7df1170a61342ff233_cryptolocker.exe
Size

36KB
MD5

68b05e5dde579a7df1170a61342ff233
SHA1

16090fabfdda7594ef09da99c57cb0ececf16904
SHA256

b9ae90a0b57ebb8939a6ff026207eccb5a099d4db5d53a92299af7061264876b
SHA512

ecaf95b9032ed76dc4c0b9761c285a17f1c147b5b46d809cf65cf9586e7f5b40506821c16149013ed1b1b09a350680a580f5013c47dfb0ca9310ae76405f2950
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6WaJIOc+UPPEkL5Tw:YGzl5wjRQBBOsP1QMOtEvwDpjgarrkLW

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 3 IoCs

resource	yara_rule
behavioral1/memory/1708-8-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c00000001224c-14.dat	CryptoLocker_rule2
behavioral1/memory/2800-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral1/memory/1708-8-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c00000001224c-14.dat	CryptoLocker_set1
behavioral1/memory/2800-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2800	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1708	2024-02-01_68b05e5dde579a7df1170a61342ff233_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 1708 wrote to memory of 2800	1708	2024-02-01_68b05e5dde579a7df1170a61342ff233_cryptolocker.exe	17
PID 1708 wrote to memory of 2800	1708	2024-02-01_68b05e5dde579a7df1170a61342ff233_cryptolocker.exe	17
PID 1708 wrote to memory of 2800	1708	2024-02-01_68b05e5dde579a7df1170a61342ff233_cryptolocker.exe	17
PID 1708 wrote to memory of 2800	1708	2024-02-01_68b05e5dde579a7df1170a61342ff233_cryptolocker.exe	17

C:\Users\Admin\AppData\Local\Temp\2024-02-01_68b05e5dde579a7df1170a61342ff233_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-01_68b05e5dde579a7df1170a61342ff233_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1708
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2800

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

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
36KB

MD5
2283851b46ad8a2f56eb6a040bd432c1

SHA1
f91cfab0340779c13da3a3a38fcfe00301a5558e

SHA256
73feda2391ca47bd569f0e7612c9eed7510eeb6c26945c7b41d47f51a790ad47

SHA512
26b67a5d0a3b31913788d6481dc18052cbeeaf3df2ebc573a54cbb8c1e1664e7de98fb0fd91fea30c4a78f35e02d187ca344cd31c7f1194a40beafe496845744

Download Submit
memory/1708-9-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/1708-8-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1708-1-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/1708-0-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2800-24-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2800-17-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/2800-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download