2a993da831a1c5140da2e1bf68b3cb759c3863f691a135676bf6e152a1b10c4e

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
18-02-2024 08:43

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General

Target

2024-02-18_878cf4550c1b5772b9b562bf7cd962fa_cryptolocker.exe
Size

36KB
MD5

878cf4550c1b5772b9b562bf7cd962fa
SHA1

4610d524ac6f55acd1ec65eadb02275223e9f29b
SHA256

2a993da831a1c5140da2e1bf68b3cb759c3863f691a135676bf6e152a1b10c4e
SHA512

69327c84d5c9585fb6111567e94516a85c49db6521efb3dbebdf6a6606b9ae68a3deded758e8b125baafba5762b6d8673a281d6e15b9af79edc365b2168a133b
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4/UkRYE:vj+jsMQMOtEvwDpj5HcSYE

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012246-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012246-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2816	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1048	2024-02-18_878cf4550c1b5772b9b562bf7cd962fa_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 1048 wrote to memory of 2816	1048	2024-02-18_878cf4550c1b5772b9b562bf7cd962fa_cryptolocker.exe	28
PID 1048 wrote to memory of 2816	1048	2024-02-18_878cf4550c1b5772b9b562bf7cd962fa_cryptolocker.exe	28
PID 1048 wrote to memory of 2816	1048	2024-02-18_878cf4550c1b5772b9b562bf7cd962fa_cryptolocker.exe	28
PID 1048 wrote to memory of 2816	1048	2024-02-18_878cf4550c1b5772b9b562bf7cd962fa_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-18_878cf4550c1b5772b9b562bf7cd962fa_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_878cf4550c1b5772b9b562bf7cd962fa_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1048
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2816

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
36KB

MD5
4a12e317ace80354c67b98eeb964c247

SHA1
90b56e91d609b3dbf8f9f3806d623ca180dea8cc

SHA256
d42ce727d246a290a29fc44e045ac0d9b56d6e29f8b115c6a30f8ccc8918785a

SHA512
ee27802d8818a9dd0eca29d6b099cb1c8f27fdfedb1aa438550a597c5192c6d776200ea760c30205ff375fa4a501748fb6a276a6af46e12d202110ced6cf4d1a

Download Submit
memory/1048-0-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/1048-1-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download
memory/1048-8-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2816-15-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2816-17-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download