b237586709ef533fca4c7a6934acb014c8d3858a3ff7de8f882ee75f394e79f7

Analysis

max time kernel
150s
max time network
156s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
14/02/2024, 08:45

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General

Target

2024-02-14_c87ec34bbbee392bfdbe7d7557ce1483_cryptolocker.exe
Size

38KB
MD5

c87ec34bbbee392bfdbe7d7557ce1483
SHA1

702bcf148825ae71369e4b8ef814070b97c41355
SHA256

b237586709ef533fca4c7a6934acb014c8d3858a3ff7de8f882ee75f394e79f7
SHA512

fa79f029f28ec468a5d9864d29ee2ee8c029ca9fd7e632c1bf2541e83a2703e9daec784cf9ec526af22235414eef51f60a60a0efdde80f085a4fdfcd01c3a168
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6WaJIOc+UPPEkL1:YGzl5wjRQBBOsP1QMOtEvwDpjgarrkL1

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2260-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a000000012255-11.dat	CryptoLocker_rule2
behavioral1/memory/2260-13-0x0000000002700000-0x000000000270B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2168-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2260-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2260-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a000000012255-11.dat	CryptoLocker_set1
behavioral1/memory/2260-13-0x0000000002700000-0x000000000270B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2168-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2260-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2168	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2260	2024-02-14_c87ec34bbbee392bfdbe7d7557ce1483_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 2260 wrote to memory of 2168	2260	2024-02-14_c87ec34bbbee392bfdbe7d7557ce1483_cryptolocker.exe	28
PID 2260 wrote to memory of 2168	2260	2024-02-14_c87ec34bbbee392bfdbe7d7557ce1483_cryptolocker.exe	28
PID 2260 wrote to memory of 2168	2260	2024-02-14_c87ec34bbbee392bfdbe7d7557ce1483_cryptolocker.exe	28
PID 2260 wrote to memory of 2168	2260	2024-02-14_c87ec34bbbee392bfdbe7d7557ce1483_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-14_c87ec34bbbee392bfdbe7d7557ce1483_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-14_c87ec34bbbee392bfdbe7d7557ce1483_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2260
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2168

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\asih.exe

Filesize
38KB

MD5
4f2cfb77c3c7250c33f5516a150dabff

SHA1
39534c28e1dc8e79ea33285b70d2311d0f6a9234

SHA256
17685cf057449563e10374ac0e27bc56065a1652594364151ab80d40adcccee5

SHA512
d29bbdd82cdde23627fa5b10eb0a59ad516c267736597f82c2a9da91d988ef50fe4f486fcb13a56ac6592f77d9864a556f816059e05c91440b7404820db14611

Download Submit
memory/2168-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2168-19-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2168-26-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2260-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2260-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2260-2-0x0000000000510000-0x0000000000516000-memory.dmp

Filesize
24KB

Download
memory/2260-3-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2260-13-0x0000000002700000-0x000000000270B000-memory.dmp

Filesize
44KB

Download
memory/2260-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download