4b59704c543fb9304b6fef254cc8c2b0a55a236d65acfa876ad019a258de3f6e

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
29/03/2024, 18:05

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General

Target

2024-03-29_f4d3e4277275629abefd5353e3dc6976_cryptolocker.exe
Size

56KB
MD5

f4d3e4277275629abefd5353e3dc6976
SHA1

8cc90d093231d267ed9b2f78d0aca34cff0097ec
SHA256

4b59704c543fb9304b6fef254cc8c2b0a55a236d65acfa876ad019a258de3f6e
SHA512

eb27ecef39036526ddae1ff121a3fe3ec96904f1eaa5109278c3977749cb711da1819be57b2e99ed9b36858288fce76883106afcefd141658314218d6fd49afe
SSDEEP

1536:X6QFElP6n+gJBMOtEvwDpjBtE1yILJ0VoM:X6a+BOtEvwDpjBOxM

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000014120-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000014120-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2212	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2356	2024-03-29_f4d3e4277275629abefd5353e3dc6976_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 2356 wrote to memory of 2212	2356	2024-03-29_f4d3e4277275629abefd5353e3dc6976_cryptolocker.exe	28
PID 2356 wrote to memory of 2212	2356	2024-03-29_f4d3e4277275629abefd5353e3dc6976_cryptolocker.exe	28
PID 2356 wrote to memory of 2212	2356	2024-03-29_f4d3e4277275629abefd5353e3dc6976_cryptolocker.exe	28
PID 2356 wrote to memory of 2212	2356	2024-03-29_f4d3e4277275629abefd5353e3dc6976_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-29_f4d3e4277275629abefd5353e3dc6976_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-29_f4d3e4277275629abefd5353e3dc6976_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2356
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2212

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
56KB

MD5
a43e1a7aa6d0f605bb0b5a36c86fc95e

SHA1
51cd74fe1c8f94a7a868c15ec0cecfbebeed29ca

SHA256
e08df89a425b92c0da68d7f04207efac493d0a44541bc16d5035e5331760f49f

SHA512
108317956b2e7ccb0b516d31d67ce96fd86237b014c8ef6d8cc6e3a3b68d8e4fbf7fc19b101bf68f2a58ec3b61d99dbe54a8cd25c511bc161c981ec472f6f810

Download Submit
memory/2212-16-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2212-15-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2356-0-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2356-1-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2356-8-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download