906e3fa315ea783c1282a58fd2ad6b1a3dfe0a8a5a940148c19e58eccdbe883b

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
31/05/2024, 00:42

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General

Target

2024-05-31_ff52909f2c92cd67ee8fe4d99564641f_cryptolocker.exe
Size

48KB
MD5

ff52909f2c92cd67ee8fe4d99564641f
SHA1

354b0edb671a42d2dc09efeea673d4dfe1dc1b00
SHA256

906e3fa315ea783c1282a58fd2ad6b1a3dfe0a8a5a940148c19e58eccdbe883b
SHA512

29a32b15044f52764427d34c4d35d923ec8d7c3fc5b1cea1385e49650cf69e523c7e54b1e2aa63d3a9e405349cb5fd6acb1b543ad57b941db36e6d608caa750b
SSDEEP

768:P6LsoVEeegiZPvEhHSP+gp/QtOOtEvwDpjBBMLZdzuqpXsiE8Wq/Dpkc3:P6Q0ElP6G+gJQMOtEvwDpjB8WMlf3

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/1956-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1956-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b0000000143e5-14.dat	CryptoLocker_rule2
behavioral1/memory/2968-25-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/1956-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1956-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b0000000143e5-14.dat	CryptoLocker_set1
behavioral1/memory/2968-25-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2968	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1956	2024-05-31_ff52909f2c92cd67ee8fe4d99564641f_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 1956 wrote to memory of 2968	1956	2024-05-31_ff52909f2c92cd67ee8fe4d99564641f_cryptolocker.exe	28
PID 1956 wrote to memory of 2968	1956	2024-05-31_ff52909f2c92cd67ee8fe4d99564641f_cryptolocker.exe	28
PID 1956 wrote to memory of 2968	1956	2024-05-31_ff52909f2c92cd67ee8fe4d99564641f_cryptolocker.exe	28
PID 1956 wrote to memory of 2968	1956	2024-05-31_ff52909f2c92cd67ee8fe4d99564641f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-31_ff52909f2c92cd67ee8fe4d99564641f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-31_ff52909f2c92cd67ee8fe4d99564641f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1956
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2968

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
48KB

MD5
836c661012fdaa2ccbf22a5b2700f0a1

SHA1
5cf1d27075c7b02249591efd3f4536b2abb33800

SHA256
72a66857116f9b7f867fd4c1b26eb1dae01d6b90e48f86a117236d0198558815

SHA512
9d9ea21ba1e3b80d1cd27cd97b20854925f4dd4e85b4e708c9e0b0120db73067f3aff503b5808b4e43ecafb08b15a3bd94ef9ad93ec61139be9683a5ba42ffe1

Download Submit
memory/1956-1-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/1956-2-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/1956-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1956-9-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/1956-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2968-17-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2968-24-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2968-25-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download