94def0c62dfad1f61a8ae4be4dd9fda0b865cd1dd8dcbdb86c13f601ccdeac93

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
12/02/2024, 05:36

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General

Target

2024-02-12_433ea622e5db28832bf869bb2ef1bc38_cryptolocker.exe
Size

37KB
MD5

433ea622e5db28832bf869bb2ef1bc38
SHA1

cbb72dded3123dddf3b82f3b0c9f4f0b273c6e13
SHA256

94def0c62dfad1f61a8ae4be4dd9fda0b865cd1dd8dcbdb86c13f601ccdeac93
SHA512

ec21a922474784bfc07f948af1ad0a2e00329323b0813cfaaeaf40853d042c2bc135e934627727bfb94e5ede7ac69f892587ae66c17f19dd5a1518153f679f68
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HKce:X6QFElP6n+gJQMOtEvwDpjBsYKj

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a0000000126af-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a0000000126af-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2152	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2948	2024-02-12_433ea622e5db28832bf869bb2ef1bc38_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 2948 wrote to memory of 2152	2948	2024-02-12_433ea622e5db28832bf869bb2ef1bc38_cryptolocker.exe	15
PID 2948 wrote to memory of 2152	2948	2024-02-12_433ea622e5db28832bf869bb2ef1bc38_cryptolocker.exe	15
PID 2948 wrote to memory of 2152	2948	2024-02-12_433ea622e5db28832bf869bb2ef1bc38_cryptolocker.exe	15
PID 2948 wrote to memory of 2152	2948	2024-02-12_433ea622e5db28832bf869bb2ef1bc38_cryptolocker.exe	15

C:\Users\Admin\AppData\Local\Temp\2024-02-12_433ea622e5db28832bf869bb2ef1bc38_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_433ea622e5db28832bf869bb2ef1bc38_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2948
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2152

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
37KB

MD5
94a0a9c40681df328a7fb0558caffdf9

SHA1
a833e3e185dac2827e9500b3c699e918abf3696a

SHA256
faf5ea479ba7d92188d7136995f01bbdd0e1f3fcdc7c6bf90b474e99f7317f39

SHA512
0a84f786257a7ef15659bc49faf2d2c3c43df30e8bcb796fb23e740898371d8e4b630e202798403601708afa789808a97e169eccd04a7b6a330f927526d0bd77

Download Submit
memory/2152-22-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2152-15-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2948-0-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2948-8-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2948-1-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download