c0c174c37e640f23c43309deb88dda207490744bdfb40d1c54a13442294fa8be

Analysis

max time kernel
150s
max time network
155s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29/05/2024, 20:36

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General

Target

2024-05-29_a84b0bf9c274cec523d3c3209ff37738_cryptolocker.exe
Size

53KB
MD5

a84b0bf9c274cec523d3c3209ff37738
SHA1

73030f56a24d6007185ffbb64acb3c4effea5893
SHA256

c0c174c37e640f23c43309deb88dda207490744bdfb40d1c54a13442294fa8be
SHA512

289d3f163ac2c871bdfc0df0b0cb23d38f36a66535e7309110639076620df61237aa5c356fa24c288f564c3311c72cc8f342b31a9e750dfe4ea9a27c5e8c6dff
SSDEEP

768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPhqlcnvhx5/xFRkH0Y:6j+1NMOtEvwDpjr8hhXiUY

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2076-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000d000000014267-11.dat	CryptoLocker_rule2
behavioral1/memory/2076-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1740-25-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2076-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000d000000014267-11.dat	CryptoLocker_set1
behavioral1/memory/2076-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1740-25-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

resource	yara_rule
behavioral1/memory/2076-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000d000000014267-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2076-15-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1740-25-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
1740	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2076	2024-05-29_a84b0bf9c274cec523d3c3209ff37738_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 2076 wrote to memory of 1740	2076	2024-05-29_a84b0bf9c274cec523d3c3209ff37738_cryptolocker.exe	28
PID 2076 wrote to memory of 1740	2076	2024-05-29_a84b0bf9c274cec523d3c3209ff37738_cryptolocker.exe	28
PID 2076 wrote to memory of 1740	2076	2024-05-29_a84b0bf9c274cec523d3c3209ff37738_cryptolocker.exe	28
PID 2076 wrote to memory of 1740	2076	2024-05-29_a84b0bf9c274cec523d3c3209ff37738_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-29_a84b0bf9c274cec523d3c3209ff37738_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-29_a84b0bf9c274cec523d3c3209ff37738_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2076
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1740

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

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Downloads

\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
54KB

MD5
67e120e5fcc1709c20dc396c53dcb4f7

SHA1
45d0bd2e5c12953059b766ccab805dc01924c897

SHA256
66ec8ec1ede709d4f2c1215d2dc35e297b63bd010e7b2f7776bf76b095d82763

SHA512
5ad4cf96ee8ff7bafbee922ad5505f5922645596040c160d0377decea6b0dc5cddb4c76467c32b5ee6d44786699ca69c1abc832333e32c508aea627a50f3a804

Download Submit
memory/1740-17-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/1740-24-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/1740-25-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2076-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2076-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2076-1-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2076-9-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2076-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download