1fb4fae62c53e756f182315c04d847f5451c5bad148f105a8da3e509af12904b

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22-05-2024 19:27

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General

Target

1fb4fae62c53e756f182315c04d847f5451c5bad148f105a8da3e509af12904b.exe
Size

390KB
MD5

ef6437a174a610c27cc2935cb6835197
SHA1

3b5d00c3ee1c8453fc428987fa8463c2c23670cd
SHA256

1fb4fae62c53e756f182315c04d847f5451c5bad148f105a8da3e509af12904b
SHA512

b856d8431e700a19c02acd5d53f4f8b15a60e64f540cb8d32b3606b4cf1c68ee428a05a599923b09433c442e6a74434bfb72f13034bb60b48ee70b9764b7713e
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXRM:nnOflT/ZFIjBz3xjTxynGUOUhXRM

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000014698-13.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1960	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2892	1fb4fae62c53e756f182315c04d847f5451c5bad148f105a8da3e509af12904b.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 2892 wrote to memory of 1960	2892	1fb4fae62c53e756f182315c04d847f5451c5bad148f105a8da3e509af12904b.exe	28
PID 2892 wrote to memory of 1960	2892	1fb4fae62c53e756f182315c04d847f5451c5bad148f105a8da3e509af12904b.exe	28
PID 2892 wrote to memory of 1960	2892	1fb4fae62c53e756f182315c04d847f5451c5bad148f105a8da3e509af12904b.exe	28
PID 2892 wrote to memory of 1960	2892	1fb4fae62c53e756f182315c04d847f5451c5bad148f105a8da3e509af12904b.exe	28

C:\Users\Admin\AppData\Local\Temp\1fb4fae62c53e756f182315c04d847f5451c5bad148f105a8da3e509af12904b.exe
"C:\Users\Admin\AppData\Local\Temp\1fb4fae62c53e756f182315c04d847f5451c5bad148f105a8da3e509af12904b.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2892
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1960

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\hasfj.exe

Filesize
390KB

MD5
a80a6bbdad5943cc683d1d4c9e92743a

SHA1
62bce60463cf870090bd161dfd4fd4c3bdf4ea29

SHA256
4de6332bf904b099462c3f4306ffb93a2fd82f265fdcd5bb28eb1c0601ee1862

SHA512
65665c68f5f639b0cf2a83e959a411f5833a5ad5b40715c4990f8c47624fb6576d23539f1c4f30326a0a8bd982403c1f82818b1f4455019732df94c8d352a27e

Download Submit
memory/1960-22-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1960-15-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2892-0-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2892-8-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2892-1-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download