8e769e8c8fdd8ee323d41223fb1b0a01a7b81d608931fbaa44f93713cac61745

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20240319-en
resource tags

arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system
submitted
15-04-2024 11:42

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General

Target

2024-04-15_6409de6ec0952f0445d63163e70d08b3_cryptolocker.exe
Size

50KB
MD5

6409de6ec0952f0445d63163e70d08b3
SHA1

424ef9eae4bb8d9a221d13d5c29f9bb1c3965ed7
SHA256

8e769e8c8fdd8ee323d41223fb1b0a01a7b81d608931fbaa44f93713cac61745
SHA512

372348a976a93e706d2999d9dfea70cc88617c73daf9bdc21ce229d3f741a873375714807145a7ff3637a6f80571190e2044279e6a8b5b5445fde7b3a071e6c5
SSDEEP

768:79inqyNR/QtOOtEvwDpjBK/rJ+Nw8qnTHGfg:79mqyNhQMOtEvwDpjBxe8GGfg

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/1192-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b0000000121e6-11.dat	CryptoLocker_rule2
behavioral1/memory/1192-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2000-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/1192-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b0000000121e6-11.dat	CryptoLocker_set1
behavioral1/memory/1192-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2000-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2000	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1192	2024-04-15_6409de6ec0952f0445d63163e70d08b3_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 1192 wrote to memory of 2000	1192	2024-04-15_6409de6ec0952f0445d63163e70d08b3_cryptolocker.exe	28
PID 1192 wrote to memory of 2000	1192	2024-04-15_6409de6ec0952f0445d63163e70d08b3_cryptolocker.exe	28
PID 1192 wrote to memory of 2000	1192	2024-04-15_6409de6ec0952f0445d63163e70d08b3_cryptolocker.exe	28
PID 1192 wrote to memory of 2000	1192	2024-04-15_6409de6ec0952f0445d63163e70d08b3_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-15_6409de6ec0952f0445d63163e70d08b3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-15_6409de6ec0952f0445d63163e70d08b3_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1192
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2000

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
ecd5b762d9b9ae541f0e126915372251

SHA1
8c0dcac656e50987521d346e80f0d51d7c83bd9d

SHA256
dede36263a67355081d6abe90a7947385bd81dbbb69904fcb6acf1a3c7b42582

SHA512
aabad6b4afca9fb0baf5d2b0a9c0a39c37a72b36721ee2d69fd6d512b9ed3719fe982ee26ecf19b29d1b095f1c9b86810bc14c1323c457c75faddbde829efb65

Download Submit
memory/1192-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1192-1-0x00000000001E0000-0x00000000001E6000-memory.dmp

Filesize
24KB

Download
memory/1192-2-0x00000000001E0000-0x00000000001E6000-memory.dmp

Filesize
24KB

Download
memory/1192-3-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/1192-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2000-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2000-18-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2000-20-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download