5981156cb99a0d0209a84bb51721a0389ece2a59fb264dc9ca6c604782cadfce

Analysis

max time kernel
148s
max time network
155s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
24/02/2024, 19:30

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General

Target

2024-02-24_42f5c7a35d6765a3fa93e0d215249c21_cryptolocker.exe
Size

45KB
MD5

42f5c7a35d6765a3fa93e0d215249c21
SHA1

440fd2abc7c4e3bbd2072f66af6c03a141526799
SHA256

5981156cb99a0d0209a84bb51721a0389ece2a59fb264dc9ca6c604782cadfce
SHA512

2c432e071d128cc819fd71d1ea9d0f744a694266e659faa670948aa6b1e92895e16e48c9d5c30030ec8cab6dbb5ab9f5e0b67d8231c56d0aaf1fde5c4c3f1ab5
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6j4AYsqSh+DETkedm+My1j5B:YGzl5wjRQBBOsP1QMOtEvwDpjl39+D+9

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2460-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0008000000012262-11.dat	CryptoLocker_rule2
behavioral1/memory/2460-13-0x00000000020E0000-0x00000000020EB000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2460-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2484-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2460-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0008000000012262-11.dat	CryptoLocker_set1
behavioral1/memory/2460-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2484-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2484	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2460	2024-02-24_42f5c7a35d6765a3fa93e0d215249c21_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 2460 wrote to memory of 2484	2460	2024-02-24_42f5c7a35d6765a3fa93e0d215249c21_cryptolocker.exe	28
PID 2460 wrote to memory of 2484	2460	2024-02-24_42f5c7a35d6765a3fa93e0d215249c21_cryptolocker.exe	28
PID 2460 wrote to memory of 2484	2460	2024-02-24_42f5c7a35d6765a3fa93e0d215249c21_cryptolocker.exe	28
PID 2460 wrote to memory of 2484	2460	2024-02-24_42f5c7a35d6765a3fa93e0d215249c21_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-24_42f5c7a35d6765a3fa93e0d215249c21_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-24_42f5c7a35d6765a3fa93e0d215249c21_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2460
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2484

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
46KB

MD5
a1905a3f386322bf5573c3621ddd7e37

SHA1
d6fa9205e2b081ad251ea53bfad535fb4aa3f93a

SHA256
3e28c1e5083b091b7d2b7cec0463ac5fa6deba753296fd774c40a5dcef1150a7

SHA512
5a4844dfb6e8439dc212693cae8f492022bfeeb9dcfaefe53be6b5645b97067967ed94f9f1ff0716ce2112d4aba8052635b26386f1a638c875d8ae83a5678609

Download Submit
memory/2460-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2460-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2460-2-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2460-4-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2460-13-0x00000000020E0000-0x00000000020EB000-memory.dmp

Filesize
44KB

Download
memory/2460-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2484-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2484-19-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/2484-21-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download