a69eb102da46070bbca7b9e3d946905fcb4a74eaa65c1e6224c25e5774d0a549

Analysis

max time kernel
147s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
18-03-2024 21:36

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General

Target

2024-03-18_9b3aa2f61bcde752a069d61b3746ced4_cryptolocker.exe
Size

79KB
MD5

9b3aa2f61bcde752a069d61b3746ced4
SHA1

8ab7df8639458a710b2e425397ee51df17134894
SHA256

a69eb102da46070bbca7b9e3d946905fcb4a74eaa65c1e6224c25e5774d0a549
SHA512

c5d8c8af7881f4bc38b1949e17de8527ad725f9cea91447a8eee833cf83a22bfac9658d26e45e29f7bc83ff7979af54112c1f15bf2672568d0c820fadcbbd149
SSDEEP

1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfWafHN9X:vCjsIOtEvwDpj5H9YvQd27

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000014120-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000014120-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2044	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1712	2024-03-18_9b3aa2f61bcde752a069d61b3746ced4_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 1712 wrote to memory of 2044	1712	2024-03-18_9b3aa2f61bcde752a069d61b3746ced4_cryptolocker.exe	28
PID 1712 wrote to memory of 2044	1712	2024-03-18_9b3aa2f61bcde752a069d61b3746ced4_cryptolocker.exe	28
PID 1712 wrote to memory of 2044	1712	2024-03-18_9b3aa2f61bcde752a069d61b3746ced4_cryptolocker.exe	28
PID 1712 wrote to memory of 2044	1712	2024-03-18_9b3aa2f61bcde752a069d61b3746ced4_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-18_9b3aa2f61bcde752a069d61b3746ced4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-18_9b3aa2f61bcde752a069d61b3746ced4_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1712
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2044

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
79KB

MD5
25c7a301ad95bf33af41b720faddf8f7

SHA1
9c3966f98b684f4f7794438b1dd6d19ffd2a6037

SHA256
4ed5eb0918d2d578ecd49a8231faf9aece2b020441de1593927373af0d0dd83f

SHA512
432f6432dfd9adef68a1eb95d2adf11785de7bee2ed654a99fdbd9ceea37cc06b93e138b76ee9b74a37ce2648aa0a401df25e7108c0386db1a2d6629e574b42f

Download Submit
memory/1712-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1712-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1712-2-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2044-17-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download