bcaaf6907975e36fd9e1f28ab2df607a71a1413f79e774c7b06fa7e5fb1f93c9

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
10/03/2024, 06:24

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General

Target

2024-03-10_cbae251725ed3ea97b421b3abfdec740_cryptolocker.exe
Size

59KB
MD5

cbae251725ed3ea97b421b3abfdec740
SHA1

820942504e49a4b68862c920423f4a6cfeb33fd7
SHA256

bcaaf6907975e36fd9e1f28ab2df607a71a1413f79e774c7b06fa7e5fb1f93c9
SHA512

fc30cee78952be40637f33fd0ba249d353ac898cd2229625d7f247d9de7246a0b963d89658faeface5bc4ece8282f12a433924a8ff323d8e43e415a0fe39ab3a
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2l9tMP/:TCjsIOtEvwDpj5HE/OUHnSMYE

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1284-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000e00000001224e-11.dat	CryptoLocker_rule2
behavioral1/memory/1284-14-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2552-17-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2552-27-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1284-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000e00000001224e-11.dat	CryptoLocker_set1
behavioral1/memory/1284-14-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2552-17-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2552-27-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2552	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1284	2024-03-10_cbae251725ed3ea97b421b3abfdec740_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 1284 wrote to memory of 2552	1284	2024-03-10_cbae251725ed3ea97b421b3abfdec740_cryptolocker.exe	28
PID 1284 wrote to memory of 2552	1284	2024-03-10_cbae251725ed3ea97b421b3abfdec740_cryptolocker.exe	28
PID 1284 wrote to memory of 2552	1284	2024-03-10_cbae251725ed3ea97b421b3abfdec740_cryptolocker.exe	28
PID 1284 wrote to memory of 2552	1284	2024-03-10_cbae251725ed3ea97b421b3abfdec740_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-10_cbae251725ed3ea97b421b3abfdec740_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-10_cbae251725ed3ea97b421b3abfdec740_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1284
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2552

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\misid.exe

Filesize
59KB

MD5
a9ae2b9aa73f766a47924846275686a1

SHA1
703ec558196523ef2e306168c10d2dfcb101af95

SHA256
9fb09d36b84c3dad5720bce14a0017150e025351a092c749dcc8ebab37aa0fcf

SHA512
b491c0df911d1af1bab6f8acb3ab83a6ad1816e8d2148a6524d83caf5189bf2677ef55ed0b9e6fa381f5575e230b85f1cc4d690a6de2893ee6599bd841768054

Download Submit
memory/1284-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/1284-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1284-2-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/1284-4-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1284-14-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/1284-16-0x00000000025C0000-0x00000000025CE000-memory.dmp

Filesize
56KB

Download
memory/2552-17-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2552-19-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2552-20-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2552-27-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download