e8584949d86e2af48649f99194f5ce74d18033bc01913ee56ab83ddfee4e5294

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
26/01/2024, 00:30

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General

Target

2024-01-26_49f72e1cbbc6c4150360c9dab7c99895_cryptolocker.exe
Size

36KB
MD5

49f72e1cbbc6c4150360c9dab7c99895
SHA1

b17753ce42167ca2a5567cf2e1b87797d860fb86
SHA256

e8584949d86e2af48649f99194f5ce74d18033bc01913ee56ab83ddfee4e5294
SHA512

4194e165d8812fbf0c6ca8d7f2fbe72578cd24153df8608d489782464aa5e86d2edf2a8e3624c3c01a4480eca82f6a3136b058255dfc0d4ebe45d87a0ce07481
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6WaJIOc+UPPEkLQ:YGzl5wjRQBBOsP1QMOtEvwDpjgarrkLQ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2016-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000d00000001225c-11.dat	CryptoLocker_rule2
behavioral1/memory/2016-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2680-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2016-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000d00000001225c-11.dat	CryptoLocker_set1
behavioral1/memory/2016-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2680-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2680	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2016	2024-01-26_49f72e1cbbc6c4150360c9dab7c99895_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 2016 wrote to memory of 2680	2016	2024-01-26_49f72e1cbbc6c4150360c9dab7c99895_cryptolocker.exe	28
PID 2016 wrote to memory of 2680	2016	2024-01-26_49f72e1cbbc6c4150360c9dab7c99895_cryptolocker.exe	28
PID 2016 wrote to memory of 2680	2016	2024-01-26_49f72e1cbbc6c4150360c9dab7c99895_cryptolocker.exe	28
PID 2016 wrote to memory of 2680	2016	2024-01-26_49f72e1cbbc6c4150360c9dab7c99895_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-26_49f72e1cbbc6c4150360c9dab7c99895_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-26_49f72e1cbbc6c4150360c9dab7c99895_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2016
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2680

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
002ae6c8e72a22af4e58f420c425ee2b

SHA1
05312ee88465f8a864177642e1cb9f62564448de

SHA256
5a4efe43a7daf426274370e55d89d646362985eea6b5ddf10c20d5ce809bff04

SHA512
90d6e54f8a5cdcef898183457a5266e498d64c6ac2f57e5a99f8c820f200c5039e6d06fa6c25106572c0fec7d0aaf4c3efc1a36b15b0384633bf986310554bf0

Download Submit
memory/2016-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2016-2-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2016-1-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2016-3-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2016-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2680-18-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2680-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2680-19-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download