46fb891c5563abe506f79ed9831354774b36bd48b4bf13f9e506d9bec1951d5f

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
11-05-2024 14:17

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General

Target

2024-05-11_f59decbad7b8b69280e670c74996fb63_cryptolocker.exe
Size

57KB
MD5

f59decbad7b8b69280e670c74996fb63
SHA1

d0eb5464c8ef25697d2e5e1db03f183749d08018
SHA256

46fb891c5563abe506f79ed9831354774b36bd48b4bf13f9e506d9bec1951d5f
SHA512

97235733e15d5592dcd1ed3b3024ab97c4a94e27b32c96d00d6a54e981b7924431baf9c18c78862f967b3501db3bcfe004cf53e704f6bdd7872ac61d3bbefb26
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4hdCW1nw71TkhsiPn1YFv6dl4Gt:vj+jsMQMOtEvwDpj5HH1nw73KOFiT

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001445e-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001445e-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2888	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2244	2024-05-11_f59decbad7b8b69280e670c74996fb63_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 2244 wrote to memory of 2888	2244	2024-05-11_f59decbad7b8b69280e670c74996fb63_cryptolocker.exe	28
PID 2244 wrote to memory of 2888	2244	2024-05-11_f59decbad7b8b69280e670c74996fb63_cryptolocker.exe	28
PID 2244 wrote to memory of 2888	2244	2024-05-11_f59decbad7b8b69280e670c74996fb63_cryptolocker.exe	28
PID 2244 wrote to memory of 2888	2244	2024-05-11_f59decbad7b8b69280e670c74996fb63_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-11_f59decbad7b8b69280e670c74996fb63_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-11_f59decbad7b8b69280e670c74996fb63_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2244
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2888

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
57KB

MD5
51c1cc0565a5783084cceee4defbb9f0

SHA1
1c934f172bd512b19bf239fd80f8cf27331521ae

SHA256
c8689f84acc2c5e2d85e0f647f52b31f267eafc7df9659046999ca187579519d

SHA512
e68fc264a3fe08a24a8f3dbbb54d43a9cdd828544f18651ecf450f42d419e4d143eba7605ebd74d067c4637553b8cc5b5392766ce4da33dd845bb43bd44a5f52

Download Submit
memory/2244-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2244-1-0x0000000000510000-0x0000000000516000-memory.dmp

Filesize
24KB

Download
memory/2244-7-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2888-15-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download