0461694be35b2a3664b31ec31c0e6c0337bc68bf28c45c1b1f1c0a5267675d36

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
25-01-2024 15:49

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General

Target

2024-01-25_c810e8e336fd24aab17d3da71445db41_cryptolocker.exe
Size

67KB
MD5

c810e8e336fd24aab17d3da71445db41
SHA1

8511fd6e5e8c84ccadc6c171b3aab600198cbdb3
SHA256

0461694be35b2a3664b31ec31c0e6c0337bc68bf28c45c1b1f1c0a5267675d36
SHA512

70e773ba0689fe5abae54119609a2436dca84c0103fa11f15203c04d9b3584d3543ba585aeaac468c498e16c742d5d61be3adbf619f4f3d52aeb82a74bb632c3
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUe:DW60sllyWOtEvwDpjwF85c

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2956-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a00000001220d-11.dat	CryptoLocker_rule2
behavioral1/memory/2956-12-0x0000000002BC0000-0x0000000002BCB000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2956-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2356-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2956-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a00000001220d-11.dat	CryptoLocker_set1
behavioral1/memory/2956-12-0x0000000002BC0000-0x0000000002BCB000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2956-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2356-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2356	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2956	2024-01-25_c810e8e336fd24aab17d3da71445db41_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 2956 wrote to memory of 2356	2956	2024-01-25_c810e8e336fd24aab17d3da71445db41_cryptolocker.exe	28
PID 2956 wrote to memory of 2356	2956	2024-01-25_c810e8e336fd24aab17d3da71445db41_cryptolocker.exe	28
PID 2956 wrote to memory of 2356	2956	2024-01-25_c810e8e336fd24aab17d3da71445db41_cryptolocker.exe	28
PID 2956 wrote to memory of 2356	2956	2024-01-25_c810e8e336fd24aab17d3da71445db41_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-25_c810e8e336fd24aab17d3da71445db41_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_c810e8e336fd24aab17d3da71445db41_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2956
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2356

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

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Downloads

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

Filesize
67KB

MD5
ba00bbec9451adf0454c93fc18556974

SHA1
637fa71b4674cd00c8b0c833a2f2d95494086801

SHA256
eecba227c8e73771ab08aa74ba8840075ac5a98f6d70e324af6ab5f736468236

SHA512
f142bffb7b38471e119aa5b66bde8acc40d41bcebad3d9c9815c1f72ff06ca162402dc994d1cc9f864e299c2a4b04d6e2a58bb72daeb1394ad69749300b395fd

Download Submit
memory/2356-19-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2356-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2356-22-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2956-0-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/2956-1-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2956-2-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2956-9-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/2956-12-0x0000000002BC0000-0x0000000002BCB000-memory.dmp

Filesize
44KB

Download
memory/2956-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download