c6b8479f4f77bebdb712e81ebf55416ee4ca89c0452ff0473ecdc20648fa4e98

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
04-06-2024 11:58

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General

Target

2024-06-04_eaccf5f0bb099cf8396e253aa038dd47_cryptolocker.exe
Size

50KB
MD5

eaccf5f0bb099cf8396e253aa038dd47
SHA1

455f8e5a1ebad49ed7da5062c0c0894fe72673f8
SHA256

c6b8479f4f77bebdb712e81ebf55416ee4ca89c0452ff0473ecdc20648fa4e98
SHA512

4a0109df4232cd08ef8cd5f4882863683e0a7f0386d5d2f9e4986fe19f5f0531f5c64aeb7f44bb306cddbed7053fed3b5179b9613b0c01f54a8def344d4f9031
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vdXfxDB:X6QFElP6n+gJBMOtEvwDpjBtEdXfxDB

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001227d-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001227d-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2700	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2980	2024-06-04_eaccf5f0bb099cf8396e253aa038dd47_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 2980 wrote to memory of 2700	2980	2024-06-04_eaccf5f0bb099cf8396e253aa038dd47_cryptolocker.exe	28
PID 2980 wrote to memory of 2700	2980	2024-06-04_eaccf5f0bb099cf8396e253aa038dd47_cryptolocker.exe	28
PID 2980 wrote to memory of 2700	2980	2024-06-04_eaccf5f0bb099cf8396e253aa038dd47_cryptolocker.exe	28
PID 2980 wrote to memory of 2700	2980	2024-06-04_eaccf5f0bb099cf8396e253aa038dd47_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-04_eaccf5f0bb099cf8396e253aa038dd47_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-04_eaccf5f0bb099cf8396e253aa038dd47_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2980
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2700

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
50KB

MD5
a302fe24653b4665b41f2b7e3048e25a

SHA1
636c664ee94018f3d76f394bec6ef403882548f6

SHA256
520946a372b4c50accca68009692a7ecd2bf08a7aaa93188dcb2dbecb854bc06

SHA512
095cb44f288e1da68e04521261b99389e70b7ce85f2a44500b0c19bf421998c1b80c621926b3199af8d0e61feb15c592c4f0d5ef6fd77115c2c8877f642cd933

Download Submit
memory/2700-22-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2700-15-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2980-1-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2980-0-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2980-8-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download