63e42ff7330bb7d3827d176836b538bd1d2fd4dbd4155526b7bf352e060a4eab

Analysis

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

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
16/03/2024, 12:45

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General

Target

2024-03-16_87b9661ad42da8eb0b2fcda473f007b7_cryptolocker.exe
Size

61KB
MD5

87b9661ad42da8eb0b2fcda473f007b7
SHA1

58fcb9f030698e1a89d4f32fb1ba5e3414b6bd77
SHA256

63e42ff7330bb7d3827d176836b538bd1d2fd4dbd4155526b7bf352e060a4eab
SHA512

9a551aba3549aaa1b077f727fa54714e6ebec23f9eff78a55d449daee63f6bbb4768ec113f4ff268474edc62687ac90be39240710e32f3b5b5816a9424692ec6
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMXbs:TCjsIOtEvwDpj5HE/OUHnSMX

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1948-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b00000001224f-11.dat	CryptoLocker_rule2
behavioral1/memory/1948-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2148-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2148-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1948-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b00000001224f-11.dat	CryptoLocker_set1
behavioral1/memory/1948-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2148-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2148-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2148	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1948	2024-03-16_87b9661ad42da8eb0b2fcda473f007b7_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 1948 wrote to memory of 2148	1948	2024-03-16_87b9661ad42da8eb0b2fcda473f007b7_cryptolocker.exe	28
PID 1948 wrote to memory of 2148	1948	2024-03-16_87b9661ad42da8eb0b2fcda473f007b7_cryptolocker.exe	28
PID 1948 wrote to memory of 2148	1948	2024-03-16_87b9661ad42da8eb0b2fcda473f007b7_cryptolocker.exe	28
PID 1948 wrote to memory of 2148	1948	2024-03-16_87b9661ad42da8eb0b2fcda473f007b7_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-16_87b9661ad42da8eb0b2fcda473f007b7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-16_87b9661ad42da8eb0b2fcda473f007b7_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1948
- 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
61KB

MD5
a27e46a4adb359f9e2f0bc3f37fade85

SHA1
5c2d50407ae51a1d0f3fd9b8e10db4fd502ce104

SHA256
6a7440ee96b366d64fe48f31dd6fd3baada1662e227f5ac46d5d92211f9b022a

SHA512
ff1ad11f07bf8c27732016032ce6396355b577b711cb39dde92a9d139b49c49d1df0340b7c0d85db0eb7dba363d02b12f98702b1400ac5fe890a68c109e9175d

Download Submit
memory/1948-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/1948-1-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/1948-2-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/1948-9-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/1948-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2148-16-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2148-18-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2148-21-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2148-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download