5909c25ed3202f449582b26042f2737ce8b91339745d283bf69c0bbc496b1c1b

Analysis

max time kernel
135s
max time network
145s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
13-03-2024 22:24

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General

Target

2024-03-13_21c58c18ab6b6ab22fc2a8a1e8f63cc8_cryptolocker.exe
Size

81KB
MD5

21c58c18ab6b6ab22fc2a8a1e8f63cc8
SHA1

ce582022fc9b33e3b11f6a7a6dba7ba716802a38
SHA256

5909c25ed3202f449582b26042f2737ce8b91339745d283bf69c0bbc496b1c1b
SHA512

d613076d07198b410fe6cb582967e8bd76e1a693133c1838389bcc6193169dc1c4644bde05762301ab663a5360060341d6efbbf6418cc0dcd5433e8546a91219
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMM+:TCjsIOtEvwDpj5HE/OUHnSMc

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2912-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2912-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000d00000000e655-11.dat	CryptoLocker_rule2
behavioral1/memory/2716-17-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2716-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2912-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2912-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000d00000000e655-11.dat	CryptoLocker_set1
behavioral1/memory/2716-17-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2716-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2716	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2912	2024-03-13_21c58c18ab6b6ab22fc2a8a1e8f63cc8_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 2912 wrote to memory of 2716	2912	2024-03-13_21c58c18ab6b6ab22fc2a8a1e8f63cc8_cryptolocker.exe	28
PID 2912 wrote to memory of 2716	2912	2024-03-13_21c58c18ab6b6ab22fc2a8a1e8f63cc8_cryptolocker.exe	28
PID 2912 wrote to memory of 2716	2912	2024-03-13_21c58c18ab6b6ab22fc2a8a1e8f63cc8_cryptolocker.exe	28
PID 2912 wrote to memory of 2716	2912	2024-03-13_21c58c18ab6b6ab22fc2a8a1e8f63cc8_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-13_21c58c18ab6b6ab22fc2a8a1e8f63cc8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-13_21c58c18ab6b6ab22fc2a8a1e8f63cc8_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2912
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2716

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
82KB

MD5
371dc94aa74449cdea348d172325546e

SHA1
cae3e577ed7f40b2794b40a56ff6943d5e40b1cf

SHA256
a6a2e5633f6474927a157cd35e2cd7132e1effcf0bed32ef5a74fa2d2dfc4fb7

SHA512
800685b806566985057513425b16f0f86c5e2cf8bcae89657ca5e4e5c4680b649aba11b0b9500a9525c45f6c6e7342afea95b58538fd0fe88e8ada1a9ad15bb9

Download Submit
memory/2716-17-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2716-19-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2716-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2912-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2912-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2912-3-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2912-2-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2912-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2912-14-0x00000000025C0000-0x00000000025CE000-memory.dmp

Filesize
56KB

Download