2cdb7785584eccf1f20644191964ee939a5b4d603a5ae661203ec969657479b5

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
11/02/2024, 13:49

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General

Target

2024-02-11_effc4d415d809dd43996c25aa0aa295e_cryptolocker.exe
Size

43KB
MD5

effc4d415d809dd43996c25aa0aa295e
SHA1

5429ab64a454d2cfc4324c9cad0af2d7547901b0
SHA256

2cdb7785584eccf1f20644191964ee939a5b4d603a5ae661203ec969657479b5
SHA512

6a0ba03946779ebb34d48b549aa57e3fedf0d715508f6a3b35d3939c0810f1a7ddddb304001e7ecddf358e6e4dd07278f70aa539a74005ea08dfbbb36918a07c
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4REL+cc66nkpb1:vj+jsMQMOtEvwDpj5HW5IiB

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000900000001222a-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000900000001222a-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1508	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2116	2024-02-11_effc4d415d809dd43996c25aa0aa295e_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 2116 wrote to memory of 1508	2116	2024-02-11_effc4d415d809dd43996c25aa0aa295e_cryptolocker.exe	28
PID 2116 wrote to memory of 1508	2116	2024-02-11_effc4d415d809dd43996c25aa0aa295e_cryptolocker.exe	28
PID 2116 wrote to memory of 1508	2116	2024-02-11_effc4d415d809dd43996c25aa0aa295e_cryptolocker.exe	28
PID 2116 wrote to memory of 1508	2116	2024-02-11_effc4d415d809dd43996c25aa0aa295e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-11_effc4d415d809dd43996c25aa0aa295e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-11_effc4d415d809dd43996c25aa0aa295e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2116
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1508

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
43KB

MD5
fd35ca0f94cdb2a58b4b489059789c97

SHA1
1465431a3bb1ea75a5b113c0f298ffe61eb0b167

SHA256
4d8649436441af6c6045be9144f167382e3b6b647dc3d73ebc8e7ebb15e01804

SHA512
efc3de5222e3aba2aeee78b371032669d27be6a67be0fd2601baad419510974e2050808917dc1d77332d42800b6564b6a5ea0f7123ab0cf99333f919c47230ee

Download Submit
memory/1508-16-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/1508-15-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2116-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2116-2-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2116-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download