697a0ab6df4c8a79c1d46973a59c780e6c6a4a1e778143ba15837dbd58042a44

Analysis

max time kernel
135s
max time network
146s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
19/03/2024, 20:48

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General

Target

2024-03-19_ef3a6b13ad4005e782f4af579157ba7e_cryptolocker.exe
Size

76KB
MD5

ef3a6b13ad4005e782f4af579157ba7e
SHA1

83395816a828f44dc71c6e17ad4334d47b957af9
SHA256

697a0ab6df4c8a79c1d46973a59c780e6c6a4a1e778143ba15837dbd58042a44
SHA512

fd17770b74bab2cbd58866ffa7fe47eacc724e4af425225444b76270b6ac96f7786e748132cf63e70cbdbbc9071ddcaf797d77e1388d8985893713db0fd106d1
SSDEEP

1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfWa6b:vCjsIOtEvwDpj5H9YvQd2A

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001224c-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001224c-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2000	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1968	2024-03-19_ef3a6b13ad4005e782f4af579157ba7e_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 1968 wrote to memory of 2000	1968	2024-03-19_ef3a6b13ad4005e782f4af579157ba7e_cryptolocker.exe	28
PID 1968 wrote to memory of 2000	1968	2024-03-19_ef3a6b13ad4005e782f4af579157ba7e_cryptolocker.exe	28
PID 1968 wrote to memory of 2000	1968	2024-03-19_ef3a6b13ad4005e782f4af579157ba7e_cryptolocker.exe	28
PID 1968 wrote to memory of 2000	1968	2024-03-19_ef3a6b13ad4005e782f4af579157ba7e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-19_ef3a6b13ad4005e782f4af579157ba7e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-19_ef3a6b13ad4005e782f4af579157ba7e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1968
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2000

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
76KB

MD5
8542f6c696cfaee90687002da63ad41d

SHA1
d388bc358c0fafec0c2b4694466126df7c951f30

SHA256
5afba6d3db3785cb2027f2c9868b7ecb19577df81ead326001aa725a86aebf34

SHA512
59e87bd18a712ea8d4473adacf826957060b9eb5d699418feba748fde51e1280fce3a377335182172e481dd67c977ea5cf0e330c8b27e9a6bbf47e5e92207d84

Download Submit
memory/1968-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1968-1-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/1968-4-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2000-16-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2000-15-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download