15391eb8af16fa17659ec478ea103344272c118f24fbf6825af9b389ba99631a

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
08-03-2024 07:31

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General

Target

2024-03-08_6f7154e57e248f13ad2505cf0335e72c_cryptolocker.exe
Size

44KB
MD5

6f7154e57e248f13ad2505cf0335e72c
SHA1

55f47e543321450312589d46831fb4b7a3be0cc9
SHA256

15391eb8af16fa17659ec478ea103344272c118f24fbf6825af9b389ba99631a
SHA512

a0fb5ae8afa80b39a739780a1295a03560440641f935c42eab4e7936b28ab58e66de32765f3fb78b7cd621faaf40aff992f95f31c03e99bc8038dffb7d6d38d0
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5aFr7YOzzfmogf:V6QFElP6n+gMQMOtEvwDpjyaYaFAhoO

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00090000000142c4-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x00090000000142c4-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2840	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2344	2024-03-08_6f7154e57e248f13ad2505cf0335e72c_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 2344 wrote to memory of 2840	2344	2024-03-08_6f7154e57e248f13ad2505cf0335e72c_cryptolocker.exe	28
PID 2344 wrote to memory of 2840	2344	2024-03-08_6f7154e57e248f13ad2505cf0335e72c_cryptolocker.exe	28
PID 2344 wrote to memory of 2840	2344	2024-03-08_6f7154e57e248f13ad2505cf0335e72c_cryptolocker.exe	28
PID 2344 wrote to memory of 2840	2344	2024-03-08_6f7154e57e248f13ad2505cf0335e72c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-08_6f7154e57e248f13ad2505cf0335e72c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-08_6f7154e57e248f13ad2505cf0335e72c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2344
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2840

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
44KB

MD5
47efadae490a2adad8ff840e6cdb33a5

SHA1
59192556d30bf299efea34233fca2f5af48e97dd

SHA256
d791541fe035d378811590ab3b81e1bfcff8bce89b31c882d56ccb4aeef8ccff

SHA512
c7f0ea32729d4c4ab06839dee228018a7e9b6243f7665ecfb0f5acd9306bca6f9548999051d7f9dfaf45040fc245e72853c8c0ae0f51ef14ece5f0dbbc8cb47b

Download Submit
memory/2344-0-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2344-2-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2344-1-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2840-15-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2840-18-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download