869eea7ab574aefc7a499339a881b05192f12c0ff35132f64614cddaf741043d

Analysis

max time kernel
130s
max time network
143s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
24-01-2024 21:27

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General

Target

2024-01-24_fb97de59d9d1ea8378bc6a57a3137149_cryptolocker.exe
Size

59KB
MD5

fb97de59d9d1ea8378bc6a57a3137149
SHA1

cba9b7a851ce3ba40b6cc617e26ca41512a1fcad
SHA256

869eea7ab574aefc7a499339a881b05192f12c0ff35132f64614cddaf741043d
SHA512

f2bd1808cd2b789ecc825103f5497d5ed717d67a80d34b6f2d09caacfb99d7b20e23e25700ac9ddf5251b8c4a0b5acd8a0c0aaa8e5a6c0571a7078f43190ff4d
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMTa:TCjsIOtEvwDpj5HE/OUHnSM1

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2332-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0009000000012252-11.dat	CryptoLocker_rule2
behavioral1/memory/2332-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2104-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2104-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2332-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0009000000012252-11.dat	CryptoLocker_set1
behavioral1/memory/2332-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2104-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2104-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2104	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2332	2024-01-24_fb97de59d9d1ea8378bc6a57a3137149_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 2332 wrote to memory of 2104	2332	2024-01-24_fb97de59d9d1ea8378bc6a57a3137149_cryptolocker.exe	28
PID 2332 wrote to memory of 2104	2332	2024-01-24_fb97de59d9d1ea8378bc6a57a3137149_cryptolocker.exe	28
PID 2332 wrote to memory of 2104	2332	2024-01-24_fb97de59d9d1ea8378bc6a57a3137149_cryptolocker.exe	28
PID 2332 wrote to memory of 2104	2332	2024-01-24_fb97de59d9d1ea8378bc6a57a3137149_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-24_fb97de59d9d1ea8378bc6a57a3137149_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-24_fb97de59d9d1ea8378bc6a57a3137149_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2332
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2104

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
59KB

MD5
52caa193c82fb4a61453b1cba926ac8c

SHA1
909b9096c39c4e568e201c15421265a397bd85be

SHA256
05fc20d8d79560002bd9486e8b5aee4d896be2d639d5757ee8ffc321a18f5676

SHA512
48e52e9a7ba8570697497ffa7e1c20f73e7fcbb979225a79f26a549a6154b8a39be20486156586c5da5c29519c904487777f288a482dcfa07795bf5b6947dfde

Download Submit
memory/2104-16-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2104-18-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2104-20-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2104-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2332-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2332-1-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2332-2-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2332-4-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2332-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download