a4e45a2b07ff21377a3f5b857cd475da1f63fc65a9bb30e90527bf407baab24e

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09/05/2024, 04:33

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General

Target

2024-05-09_51aa7ea715070ca9f1c4409529a89a13_cryptolocker.exe
Size

46KB
MD5

51aa7ea715070ca9f1c4409529a89a13
SHA1

dc9455783d34acf14b85efb152ec1441dfd389b8
SHA256

a4e45a2b07ff21377a3f5b857cd475da1f63fc65a9bb30e90527bf407baab24e
SHA512

5c6f8a267928d3e1d5214c9b6cfba32e1149d9c4665b987ef85b97e77869be09e3b024bfbdd613def09c4de8989f3c4cb4dbdccef60627dbbefb26093e0a0727
SSDEEP

768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAPaW:P6QFElP6k+MRQMOtEvwDpjBQpVXBW

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2620-24-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b00000001565d-23.dat	CryptoLocker_rule2
behavioral1/memory/2240-12-0x0000000002220000-0x000000000222B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2240-8-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2620-24-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b00000001565d-23.dat	CryptoLocker_set1
behavioral1/memory/2240-12-0x0000000002220000-0x000000000222B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2240-8-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2620	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2240	2024-05-09_51aa7ea715070ca9f1c4409529a89a13_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 2240 wrote to memory of 2620	2240	2024-05-09_51aa7ea715070ca9f1c4409529a89a13_cryptolocker.exe	28
PID 2240 wrote to memory of 2620	2240	2024-05-09_51aa7ea715070ca9f1c4409529a89a13_cryptolocker.exe	28
PID 2240 wrote to memory of 2620	2240	2024-05-09_51aa7ea715070ca9f1c4409529a89a13_cryptolocker.exe	28
PID 2240 wrote to memory of 2620	2240	2024-05-09_51aa7ea715070ca9f1c4409529a89a13_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-09_51aa7ea715070ca9f1c4409529a89a13_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-09_51aa7ea715070ca9f1c4409529a89a13_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2240
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2620

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

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
46KB

MD5
ced7e193ed56d15c3d0b2ac5231ccd41

SHA1
4c9b6c09799d2f77230cacccb87d3128bd87e9e0

SHA256
0e7ef4ca6cfc644a9c0af36c9679e4eed9bb554e7f0ab63fa874423f67bcc58d

SHA512
994b0eec452a46493ff64bddb38b1eb92dea787b34c3ab6141d1e969d8391d6042a0201005e5dca985b78a44fe9f3a402ab190faf960dd13f5e54c8507e23db4

Download Submit
memory/2240-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2240-12-0x0000000002220000-0x000000000222B000-memory.dmp

Filesize
44KB

Download
memory/2240-8-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2240-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2240-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2620-24-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2620-17-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download