cc4bafdf471b56d9765d7d8982f5d23cb2ef0d439099e8d2751ab41678765244

Analysis

max time kernel
147s
max time network
149s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
19/02/2024, 16:32

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General

Target

2024-02-19_47c4247d2567fa83d57457635cde28f6_cryptolocker.exe
Size

97KB
MD5

47c4247d2567fa83d57457635cde28f6
SHA1

faef6e6e28b426d082d1165677e5ee0cf875320a
SHA256

cc4bafdf471b56d9765d7d8982f5d23cb2ef0d439099e8d2751ab41678765244
SHA512

a617bd2c46b93d405886df36c1acc9308ff7b82fd63a6dbd47798a127dca4b9073f71f4ea5ec623f269ab5b95a741ea1ab6b6919eebd87b11b07205877236eeb
SSDEEP

1536:26QFElP6n+gBQMOtEvwDpjQGYQbN/PKwNCJF:26a+2OtEvwDpjtzI

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001223f-13.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001223f-13.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2648	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1740	2024-02-19_47c4247d2567fa83d57457635cde28f6_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 1740 wrote to memory of 2648	1740	2024-02-19_47c4247d2567fa83d57457635cde28f6_cryptolocker.exe	16
PID 1740 wrote to memory of 2648	1740	2024-02-19_47c4247d2567fa83d57457635cde28f6_cryptolocker.exe	16
PID 1740 wrote to memory of 2648	1740	2024-02-19_47c4247d2567fa83d57457635cde28f6_cryptolocker.exe	16
PID 1740 wrote to memory of 2648	1740	2024-02-19_47c4247d2567fa83d57457635cde28f6_cryptolocker.exe	16

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
1⤵
- Executes dropped EXE
PID:2648

C:\Users\Admin\AppData\Local\Temp\2024-02-19_47c4247d2567fa83d57457635cde28f6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-19_47c4247d2567fa83d57457635cde28f6_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1740

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
97KB

MD5
085ddca8e72103f9a1e37b86d552f20f

SHA1
8f39dd835fa313141f8d5c7095fc41446a96dc1f

SHA256
47c813ae6863951d9b6ef6838f79fe20f221145b6783de31ba8709f7f4018202

SHA512
823e8b423b272d5f092f23618fa8b2dc03d3084de0697b48f8e4caa3dbff782331f0a986a94b16880aec96932efc5de969d3bd82f21606556468b14563c536c7

Download Submit
memory/1740-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1740-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1740-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2648-22-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2648-15-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download