6a13f6e81e28e5614d84674ec7f52f038d9f6b1b8fbf2dc6aeac1fbbe7a07cbf

Analysis

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

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
24/04/2024, 04:15

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General

Target

2024-04-24_c051d034a425d0a10095794e98728843_cryptolocker.exe
Size

70KB
MD5

c051d034a425d0a10095794e98728843
SHA1

911d34cb5bd34c80dec1db891ff9e2a04a3891f9
SHA256

6a13f6e81e28e5614d84674ec7f52f038d9f6b1b8fbf2dc6aeac1fbbe7a07cbf
SHA512

aab73381d07f40957b9ee625cda405dfb9cad1ad1ab4a0f39ec39cc823453f317c15e4e1e79cc50cd07d32eda8ff6573cac53eb8aa2a74ddf7d0a3164c373d8e
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKU50U:DW60sllyWOtEvwDpjwF853

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2008-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000e000000012248-11.dat	CryptoLocker_rule2
behavioral1/memory/2008-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2748-18-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2008-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000e000000012248-11.dat	CryptoLocker_set1
behavioral1/memory/2008-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2748-18-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2748	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2008	2024-04-24_c051d034a425d0a10095794e98728843_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 2008 wrote to memory of 2748	2008	2024-04-24_c051d034a425d0a10095794e98728843_cryptolocker.exe	28
PID 2008 wrote to memory of 2748	2008	2024-04-24_c051d034a425d0a10095794e98728843_cryptolocker.exe	28
PID 2008 wrote to memory of 2748	2008	2024-04-24_c051d034a425d0a10095794e98728843_cryptolocker.exe	28
PID 2008 wrote to memory of 2748	2008	2024-04-24_c051d034a425d0a10095794e98728843_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-24_c051d034a425d0a10095794e98728843_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-24_c051d034a425d0a10095794e98728843_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2008
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2748

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
70KB

MD5
e41708e09c1f392278521a2955666872

SHA1
ce86bfabea194cfcd39399816175a3f0b8f9bb8f

SHA256
47ed2f520794ed0dcf2425f0afc7087a6af35834c89d0abfe568cf62cdc72116

SHA512
b25321a9579dccb3c5e430f5a5ab154a1d4cfc5dcc5f4ac166ffe42d732f5141785ef348a0367f26893b111dd768201458c9ffb104cf6a75abb288107cdde93e

Download Submit
memory/2008-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2008-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2008-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2008-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2008-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2008-17-0x00000000006A0000-0x00000000006AB000-memory.dmp

Filesize
44KB

Download
memory/2748-18-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2748-19-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download