f296a13a705533d3782e01003d7373d6a0c654d6d3a409ced2eb7dda907283e5

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
17/02/2024, 13:41

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General

Target

2024-02-17_c7845f0eda82bcf80c52b04decccc112_cryptolocker.exe
Size

50KB
MD5

c7845f0eda82bcf80c52b04decccc112
SHA1

db3cb61d7acf8a117f98eb20c6b87630a665be8e
SHA256

f296a13a705533d3782e01003d7373d6a0c654d6d3a409ced2eb7dda907283e5
SHA512

3a327d18cb930a0734b45fffe23b95271e4c79bf38b186d4cefaf382522e1a12081f2cdaa77925d0442a74aa6d3ed7dcbda3641c8e6af0f73653036ab9af12b7
SSDEEP

768:79inqyNR/QtOOtEvwDpjBK/rJ+Nw8qn8pKIROk:79mqyNhQMOtEvwDpjBxe8TpXROk

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2508-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0008000000012233-11.dat	CryptoLocker_rule2
behavioral1/memory/2508-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2676-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2508-13-0x0000000002060000-0x000000000206F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2508-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0008000000012233-11.dat	CryptoLocker_set1
behavioral1/memory/2508-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2676-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2508-13-0x0000000002060000-0x000000000206F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2676	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2508	2024-02-17_c7845f0eda82bcf80c52b04decccc112_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 2508 wrote to memory of 2676	2508	2024-02-17_c7845f0eda82bcf80c52b04decccc112_cryptolocker.exe	28
PID 2508 wrote to memory of 2676	2508	2024-02-17_c7845f0eda82bcf80c52b04decccc112_cryptolocker.exe	28
PID 2508 wrote to memory of 2676	2508	2024-02-17_c7845f0eda82bcf80c52b04decccc112_cryptolocker.exe	28
PID 2508 wrote to memory of 2676	2508	2024-02-17_c7845f0eda82bcf80c52b04decccc112_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-17_c7845f0eda82bcf80c52b04decccc112_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-17_c7845f0eda82bcf80c52b04decccc112_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2508
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2676

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
50KB

MD5
844db1c1f944c0cfbcf1f4379082ea47

SHA1
a0c9764bf293df767a68dfce384b4d7b952c77f1

SHA256
33cc3e5a62950af4ee2ae9888b89e1876c1788370d94e0c59005ab72e13d4531

SHA512
992c61f26d65255c4eb7fd2cc96b9bea43d6874f135b02abfe26ea8f8329de2d037b0fc901dc83ae6e2689e89e4f6a02c6b924d084b23d565268d81875d42243

Download Submit
memory/2508-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2508-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2508-3-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2508-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2508-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2508-13-0x0000000002060000-0x000000000206F000-memory.dmp

Filesize
60KB

Download
memory/2676-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2676-19-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download