bea2b95e81d05c023ea3ec160d9984d1d26d539abbca0a32177096490c254cd2

Analysis

max time kernel
150s
max time network
156s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
14-03-2024 06:03

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General

Target

2024-03-14_4f769a489c0eb7296ce9b2ab11b6d07b_cryptolocker.exe
Size

68KB
MD5

4f769a489c0eb7296ce9b2ab11b6d07b
SHA1

28c7f52de67e2268ed17fea6c661a1ef828a633c
SHA256

bea2b95e81d05c023ea3ec160d9984d1d26d539abbca0a32177096490c254cd2
SHA512

bb628ddcf7e2c59dc64b47e86ad85b07d8e1d87e21e0fe323d31d658ebc6fe2929088717b30aa767606f6f02e8037f372917863359703587ce043b3249ad80ca
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUj:DW60sllyWOtEvwDpjwF85N

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2312-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a000000012247-11.dat	CryptoLocker_rule2
behavioral1/memory/2312-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2828-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2312-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a000000012247-11.dat	CryptoLocker_set1
behavioral1/memory/2312-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2828-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2828	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2312	2024-03-14_4f769a489c0eb7296ce9b2ab11b6d07b_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 2312 wrote to memory of 2828	2312	2024-03-14_4f769a489c0eb7296ce9b2ab11b6d07b_cryptolocker.exe	28
PID 2312 wrote to memory of 2828	2312	2024-03-14_4f769a489c0eb7296ce9b2ab11b6d07b_cryptolocker.exe	28
PID 2312 wrote to memory of 2828	2312	2024-03-14_4f769a489c0eb7296ce9b2ab11b6d07b_cryptolocker.exe	28
PID 2312 wrote to memory of 2828	2312	2024-03-14_4f769a489c0eb7296ce9b2ab11b6d07b_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-14_4f769a489c0eb7296ce9b2ab11b6d07b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-14_4f769a489c0eb7296ce9b2ab11b6d07b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2312
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2828

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
68KB

MD5
75ed3205cb95062e6c2bda7b73c6c28c

SHA1
f245db78f33974f60e04656d8cdb4eab00f3cd86

SHA256
10ee427b0a5ed0b2c29edcc8f52199521ee8f8f985cafb3ac8efa41d1093039b

SHA512
9edbd71d3e99343238d4b2b980b4cf630a35edba900b3fbbe406df424efcbe325f925f2d23952622ab975af1803332bc0ca9e764f8c9e47cf9d4c7315a4cf613

Download Submit
memory/2312-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2312-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2312-3-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2312-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2312-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2828-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2828-19-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2828-18-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download