2c0c168eae9c7250b3a0e070f5e5e7cf993949857e5557bf88001e93d9eaf955

Analysis

max time kernel
120s
max time network
126s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29-05-2024 19:29

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General

Target

2024-05-29_97a8c9bcaa8c15c6df8cbecca20ea3cd_cryptolocker.exe
Size

68KB
MD5

97a8c9bcaa8c15c6df8cbecca20ea3cd
SHA1

eb65fb21f641573023448237dfe0ba54e12ef8b4
SHA256

2c0c168eae9c7250b3a0e070f5e5e7cf993949857e5557bf88001e93d9eaf955
SHA512

d9f19134a84f93b16948aac9b23d3e09b8fc7b66f558b192db5d4ee37bf81ad79815cfa2360a4004bc66834ba59d7384762fbf12e6d9f59b4c59cd1010a4deb6
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2l9tMPvdfGyePu7:TCjsIOtEvwDpj5HE/OUHnSMYy

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2180-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000d0000000122b8-11.dat	CryptoLocker_rule2
behavioral1/memory/2180-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2956-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2956-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2180-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000d0000000122b8-11.dat	CryptoLocker_set1
behavioral1/memory/2180-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2956-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2956-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2956	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2180	2024-05-29_97a8c9bcaa8c15c6df8cbecca20ea3cd_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 2180 wrote to memory of 2956	2180	2024-05-29_97a8c9bcaa8c15c6df8cbecca20ea3cd_cryptolocker.exe	28
PID 2180 wrote to memory of 2956	2180	2024-05-29_97a8c9bcaa8c15c6df8cbecca20ea3cd_cryptolocker.exe	28
PID 2180 wrote to memory of 2956	2180	2024-05-29_97a8c9bcaa8c15c6df8cbecca20ea3cd_cryptolocker.exe	28
PID 2180 wrote to memory of 2956	2180	2024-05-29_97a8c9bcaa8c15c6df8cbecca20ea3cd_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-29_97a8c9bcaa8c15c6df8cbecca20ea3cd_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-29_97a8c9bcaa8c15c6df8cbecca20ea3cd_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2180
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2956

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
68KB

MD5
cfb2c81aebdbb5cbbfbaeb635be8b5c3

SHA1
d5a701f8e7588d778132583c18b199faf71d9658

SHA256
aba343e23af4f79051396318f7b481fc99fa135a845c5304c4efe8ba4608ae16

SHA512
d1b1aafaff80adf942a9a0fdf4da851ebb7178737bc4485d4c9f6dcdd61eac2fc2f5533f80c42132a1793de08fd78bd9164dd13c94cdb5722358d1a1ff9ef0ed

Download Submit
memory/2180-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2180-1-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2180-9-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2180-2-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2180-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2956-16-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2956-25-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2956-18-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2956-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download