fcbc9e1bdb4707599ebb0fdadd360e6bf6f71cc63db333cc0fbfc55b75105e4f

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
25-05-2024 17:49

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General

Target

2024-05-25_37e35257dab081e3df7f2c440a96ecc0_cryptolocker.exe
Size

86KB
MD5

37e35257dab081e3df7f2c440a96ecc0
SHA1

3d4d30dd4c1111e84bda2ff3bb3ce9d29a0f8058
SHA256

fcbc9e1bdb4707599ebb0fdadd360e6bf6f71cc63db333cc0fbfc55b75105e4f
SHA512

39a3258078a9e7fc1ce98b924ca93a331956af1bce65916dd83626603f9ac75713a825de464524a0914bb1432f14ae949b47afca9a6b6df26a2c54283f882be3
SSDEEP

1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfWafHNBlR:vCjsIOtEvwDpj5H9YvQd2j

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012279-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012279-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2148	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2460	2024-05-25_37e35257dab081e3df7f2c440a96ecc0_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 2460 wrote to memory of 2148	2460	2024-05-25_37e35257dab081e3df7f2c440a96ecc0_cryptolocker.exe	28
PID 2460 wrote to memory of 2148	2460	2024-05-25_37e35257dab081e3df7f2c440a96ecc0_cryptolocker.exe	28
PID 2460 wrote to memory of 2148	2460	2024-05-25_37e35257dab081e3df7f2c440a96ecc0_cryptolocker.exe	28
PID 2460 wrote to memory of 2148	2460	2024-05-25_37e35257dab081e3df7f2c440a96ecc0_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-25_37e35257dab081e3df7f2c440a96ecc0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-25_37e35257dab081e3df7f2c440a96ecc0_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2460
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2148

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
86KB

MD5
466b3612717882654db2dfbe03405bbb

SHA1
2c742ec1498cf92e8e2787db17a4af3097e4aee4

SHA256
debcd73d35e59b03d3cae20710a4178d7cce3d48dbcd36ccb16b4efe45812027

SHA512
1ea1f98899c119fb1d3cfb85216f3afb7895dbf34160d19880dd8163276b3b87760e28908aa23fa3a7a31b669a477e857b06137c016f48eecb135d287da21367

Download Submit
memory/2148-15-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/2148-22-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2460-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2460-1-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2460-8-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download