d78c6d19e43eec8b3224395acd13372231bb09dd52e54d28a8e9f02cb625e836

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
13/06/2024, 09:26

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General

Target

2024-06-13_fd8deddbba1138bd5963e065caf047db_cryptolocker.exe
Size

37KB
MD5

fd8deddbba1138bd5963e065caf047db
SHA1

52460f91cfac860116f029fc14aee52bd23bd7a2
SHA256

d78c6d19e43eec8b3224395acd13372231bb09dd52e54d28a8e9f02cb625e836
SHA512

956a84875fcaffc5ebed6553490733bedf0f2562ad6331166f29475fa7bd9b886c948c329f76efe45669960c8eb3ec5e1aa0312e08dd5cbd751d46f025e2cfe4
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6WaJIOc+UPPEkLbM:YGzl5wjRQBBOsP1QMOtEvwDpjgarrkLg

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2168-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000014454-11.dat	CryptoLocker_rule2
behavioral1/memory/2168-13-0x0000000002740000-0x000000000274B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2168-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2168-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000014454-11.dat	CryptoLocker_set1
behavioral1/memory/2168-13-0x0000000002740000-0x000000000274B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2168-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2604	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2168	2024-06-13_fd8deddbba1138bd5963e065caf047db_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 2168 wrote to memory of 2604	2168	2024-06-13_fd8deddbba1138bd5963e065caf047db_cryptolocker.exe	28
PID 2168 wrote to memory of 2604	2168	2024-06-13_fd8deddbba1138bd5963e065caf047db_cryptolocker.exe	28
PID 2168 wrote to memory of 2604	2168	2024-06-13_fd8deddbba1138bd5963e065caf047db_cryptolocker.exe	28
PID 2168 wrote to memory of 2604	2168	2024-06-13_fd8deddbba1138bd5963e065caf047db_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-13_fd8deddbba1138bd5963e065caf047db_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_fd8deddbba1138bd5963e065caf047db_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2168
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2604

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
37KB

MD5
a985f7949d6896ef6430aae0a322bbec

SHA1
4408c122d9a59a57daee806dc9339003628234f1

SHA256
a90ac6e390824648b3903bcf297063aea89450c970c1c8d0306b8b4a89cb4e0a

SHA512
0ef88096d4014e89466a901b6db9b859f483c834abd8ffe11a9fc4b6af2563dbdf1b742da4a5a079f40a7b551ee38fe85de75f826ea86c6a91f2efc281db4889

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

Filesize
44KB

Download
memory/2168-1-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/2168-2-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2168-9-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/2168-13-0x0000000002740000-0x000000000274B000-memory.dmp

Filesize
44KB

Download
memory/2168-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2604-18-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2604-25-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download