d20f1fb84fc4293866e27461f65cbbe085e03bede03df5c633c0b43b13266848

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25-01-2024 15:34

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General

Target

2024-01-25_5b96ff759a2ffefb0926e2abca1997ad_cryptolocker.exe
Size

61KB
MD5

5b96ff759a2ffefb0926e2abca1997ad
SHA1

833e537d8d1747d8e18ac3ea56a4999eba891359
SHA256

d20f1fb84fc4293866e27461f65cbbe085e03bede03df5c633c0b43b13266848
SHA512

a0b1afbddc3e5a4e63359f036a3a2512d8fe1106d1c90e6bc73cbc1126eb7c85163da654e65bc71cb1b92711f19869e5f82f9b7cfc1d17bd030def59e0b0fe9a
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjyaLccVCbmhk1:V6a+pOtEvwDpjvk

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_set1

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

2656 asih.exe
Loads dropped DLL 1 IoCs

Processes:

2024-01-25_5b96ff759a2ffefb0926e2abca1997ad_cryptolocker.exe

pid process

3056 2024-01-25_5b96ff759a2ffefb0926e2abca1997ad_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2656	asih.exe

pid	process
3056	2024-01-25_5b96ff759a2ffefb0926e2abca1997ad_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-01-25_5b96ff759a2ffefb0926e2abca1997ad_cryptolocker.exe

description	pid	process	target process
PID 3056 wrote to memory of 2656	3056	2024-01-25_5b96ff759a2ffefb0926e2abca1997ad_cryptolocker.exe	asih.exe
PID 3056 wrote to memory of 2656	3056	2024-01-25_5b96ff759a2ffefb0926e2abca1997ad_cryptolocker.exe	asih.exe
PID 3056 wrote to memory of 2656	3056	2024-01-25_5b96ff759a2ffefb0926e2abca1997ad_cryptolocker.exe	asih.exe
PID 3056 wrote to memory of 2656	3056	2024-01-25_5b96ff759a2ffefb0926e2abca1997ad_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-01-25_5b96ff759a2ffefb0926e2abca1997ad_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_5b96ff759a2ffefb0926e2abca1997ad_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3056

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:2656

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
61KB

MD5
ec6eb6671b702719e56e2ff4525d53fc

SHA1
d6ab9640f46f5786ebb2b09bda7fd44f8a3edf32

SHA256
52dd2abf7787bc48fa4bbbfa31e603ba0de6eee2e6e7fcb5a40fbe22a48e417d

SHA512
c9a5102b0e2803abf3d2ebe9c1079c292db322d44d424a8a191ff8b94a22983e6cdd381c115a6901955fbd552b400263a0f04426428a5f93afb871eea919695f

Download Submit
memory/2656-15-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/2656-22-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/3056-0-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/3056-1-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/3056-6-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download