b6f3348bba6f6f0e9485b14f3d79f6a4c320f0ed4ef54d484458212e93e52c9f

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22-02-2024 06:13

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General

Target

2024-02-22_e5846549a5ec822b80f38a3393ea6f27_cryptolocker.exe
Size

68KB
MD5

e5846549a5ec822b80f38a3393ea6f27
SHA1

2c78685cad0019e1b5b8d2aa9355ba602528cb1b
SHA256

b6f3348bba6f6f0e9485b14f3d79f6a4c320f0ed4ef54d484458212e93e52c9f
SHA512

e85000fc51280db963e6e1af7d04df3b8dcf0f9fe43104f5f94c99b62f723c7cd73de6c8a7b3b898840ad7a9bb53383624e4e0dedb8faf5caa8f70dc9b46045e
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUsl:DW60sllyWOtEvwDpjwF85o

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 3 IoCs

resource	yara_rule
behavioral1/memory/2988-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0008000000012262-11.dat	CryptoLocker_rule2
behavioral1/memory/2504-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral1/memory/2988-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0008000000012262-11.dat	CryptoLocker_set1
behavioral1/memory/2504-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2504	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2988	2024-02-22_e5846549a5ec822b80f38a3393ea6f27_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 2988 wrote to memory of 2504	2988	2024-02-22_e5846549a5ec822b80f38a3393ea6f27_cryptolocker.exe	28
PID 2988 wrote to memory of 2504	2988	2024-02-22_e5846549a5ec822b80f38a3393ea6f27_cryptolocker.exe	28
PID 2988 wrote to memory of 2504	2988	2024-02-22_e5846549a5ec822b80f38a3393ea6f27_cryptolocker.exe	28
PID 2988 wrote to memory of 2504	2988	2024-02-22_e5846549a5ec822b80f38a3393ea6f27_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-22_e5846549a5ec822b80f38a3393ea6f27_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_e5846549a5ec822b80f38a3393ea6f27_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2988
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2504

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
69KB

MD5
2e0ab8c53a78e80c0099924c9de8a5a0

SHA1
efd34fb1199cdb7b764dd4d24d3199cbb8cb034d

SHA256
7aab68b73530c6f5a2478514862a3a4671f88d3292909b0a174eeb2345b87424

SHA512
fe7a6485f2d6f1bdef72ef76fe4909c90a12fe63873878949eb0986eea531b9827008f6630981d228b37dcafbf4d94daf0084e2b60537077cd598c9a42863456

Download Submit
memory/2504-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2504-17-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2988-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2988-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2988-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2988-2-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download