8fbdd1bb37ce006e5cf1db03ae3996d0c62c6fbe8be90734db0d8fff82bafebf

Analysis

max time kernel
148s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25/02/2024, 09:27

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General

Target

2024-02-25_08167d75e7e9036cc7968e81511b80e8_cryptolocker.exe
Size

90KB
MD5

08167d75e7e9036cc7968e81511b80e8
SHA1

528538f9eb509d7560587f4243fad2d9f5d55cba
SHA256

8fbdd1bb37ce006e5cf1db03ae3996d0c62c6fbe8be90734db0d8fff82bafebf
SHA512

0c36e2bcfe4e7af841eb9597a4ebec043af6bc3f55a969d74699b6f2a63cf3eff0f462ac8d315f7e65f010fc429bf901e6094b7d4d37c6347c72790f0de9eca9
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwMgY:V6a+pOtEvwDpjtzU

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001224e-13.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001224e-13.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1936	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1664	2024-02-25_08167d75e7e9036cc7968e81511b80e8_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 1664 wrote to memory of 1936	1664	2024-02-25_08167d75e7e9036cc7968e81511b80e8_cryptolocker.exe	28
PID 1664 wrote to memory of 1936	1664	2024-02-25_08167d75e7e9036cc7968e81511b80e8_cryptolocker.exe	28
PID 1664 wrote to memory of 1936	1664	2024-02-25_08167d75e7e9036cc7968e81511b80e8_cryptolocker.exe	28
PID 1664 wrote to memory of 1936	1664	2024-02-25_08167d75e7e9036cc7968e81511b80e8_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-25_08167d75e7e9036cc7968e81511b80e8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-25_08167d75e7e9036cc7968e81511b80e8_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1664
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1936

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

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
90KB

MD5
16916a41c824b50cadc186817d97f29c

SHA1
9b90a7983fb1f183688b4e898baa2075565c633b

SHA256
4f56fc46e4046bbbe087da9c20a45d2ad25d428dbd6fb58385cdf5b3da776551

SHA512
16307eeb126ce28696d8a652932136afa5b6d380ca657fb5ff654f52026ba067113bf6e9fbb1c20dd31fe574b483aa95b364c749df60215c2b9aacd7cd5b2e41

Download Submit
memory/1664-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1664-1-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/1664-2-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1936-15-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/1936-19-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download