1557541d54a9cf5ced3f1b8feb554e8f5c75adf2e9e5dd5542ffc35486735aed

Analysis

max time kernel
150s
max time network
143s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10/03/2024, 10:29

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General

Target

2024-03-10_3161e23a1c465e12253f55145779f03e_cryptolocker.exe
Size

59KB
MD5

3161e23a1c465e12253f55145779f03e
SHA1

ea2be9133b7809a687731716e0f775f2cf21cf97
SHA256

1557541d54a9cf5ced3f1b8feb554e8f5c75adf2e9e5dd5542ffc35486735aed
SHA512

3faa8fc872fc9fac10264fe2d7d798c74f5394778944859b45eef33fc28d695111b40cc1ad8a85fd28d4449bd8e8f0b360e00bd18ca8254112fa5b5f34b324d1
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMB:TCjsIOtEvwDpj5HE/OUHnSMC

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1460-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a000000012254-11.dat	CryptoLocker_rule2
behavioral1/memory/1460-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3036-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3036-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1460-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a000000012254-11.dat	CryptoLocker_set1
behavioral1/memory/1460-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3036-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3036-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3036	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1460	2024-03-10_3161e23a1c465e12253f55145779f03e_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 1460 wrote to memory of 3036	1460	2024-03-10_3161e23a1c465e12253f55145779f03e_cryptolocker.exe	28
PID 1460 wrote to memory of 3036	1460	2024-03-10_3161e23a1c465e12253f55145779f03e_cryptolocker.exe	28
PID 1460 wrote to memory of 3036	1460	2024-03-10_3161e23a1c465e12253f55145779f03e_cryptolocker.exe	28
PID 1460 wrote to memory of 3036	1460	2024-03-10_3161e23a1c465e12253f55145779f03e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-10_3161e23a1c465e12253f55145779f03e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-10_3161e23a1c465e12253f55145779f03e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1460
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3036

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
60KB

MD5
bd7a9eb3b55de87c51d864f98a2cf983

SHA1
3bd112cd6e480df0e3c2811cd815041def70b2b3

SHA256
0f8d71732c94975883b893f9548e8d5d75466662353537b3d5d517e0a8cfb86a

SHA512
ac572a15cbd0c511a2b7e5236b7867f035e3a6384414eef705fe8004a2f7d9f6a9c3a83e6974fcbf92b7d73c8030517ddbc06480728b94924d0fb26f53872343

Download Submit
memory/1460-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/1460-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1460-2-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/1460-4-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1460-16-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/3036-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/3036-19-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/3036-18-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/3036-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download