7f988e3a23998e57784262affa784e9cc63ee9494ece3bf5274a7433f4ffab46

Analysis

max time kernel
142s
max time network
124s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
01/06/2024, 04:25

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General

Target

Cryptor.exe
Size

2.9MB
MD5

4ca40d9d318d97d68fcb518e2c4fe07a
SHA1

5fc2e90b7bc1aa4d00c2dc9e0064056b3956e425
SHA256

7f988e3a23998e57784262affa784e9cc63ee9494ece3bf5274a7433f4ffab46
SHA512

bc3133b4c1da31037eaa2313e427161e7402be8e305e744bec00d294e6c7c95d5abba1bf45dbcf861935224d9213c190392443ca7447e0c6c71e512eb5dee7f2
SSDEEP

49152:yG3XVai+IaMqPPgeT+B2GDsp8aTvMf1p8LEh3ZDJgD3WIPvozJO7caDV2aK:yqXVD7deT+spnU80JDJi3WgQtAVDcaK

Score

7^/10

execution spyware stealer upx

Malware Config

Signatures

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1724-0-0x000000013FFE0000-0x0000000140527000-memory.dmp	upx
behavioral1/memory/1724-1-0x000000013FFE0000-0x0000000140527000-memory.dmp	upx
behavioral1/memory/1724-41-0x000000013FFE0000-0x0000000140527000-memory.dmp	upx

Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2536	powershell.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2536	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2536	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1724 wrote to memory of 2536	1724	Cryptor.exe	29
PID 1724 wrote to memory of 2536	1724	Cryptor.exe	29
PID 1724 wrote to memory of 2536	1724	Cryptor.exe	29
PID 1724 wrote to memory of 2836	1724	Cryptor.exe	31
PID 1724 wrote to memory of 2836	1724	Cryptor.exe	31
PID 1724 wrote to memory of 2836	1724	Cryptor.exe	31

C:\Users\Admin\AppData\Local\Temp\Cryptor.exe
"C:\Users\Admin\AppData\Local\Temp\Cryptor.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1724
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" -NoProfile -NonInteractive -NoLogo -Command "[Console]::OutputEncoding = [System.Text.Encoding]::UTF8; Get-Culture | Select -ExpandProperty DisplayName"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2536
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 1724 -s 516
  2⤵
  PID:2836

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\rfxibxcWqM1chhRAmuqLZRFwrcWu8L\sensitive-files.zip

Filesize
449KB

MD5
c2a32fa390bbdb040604b13532c421a6

SHA1
14d16004b5b2243b2fc25fe6a78696a7695b09e2

SHA256
111c4d6e8b0845bac7957d8e2bf3ac283f648b6e3a2557734602245e0b035b1b

SHA512
081e728352f6ba49a884433786c3195c60647e818059ccfc987ada76cafcc0bc2744d77aae4d75173545d3f7fdb3f5f3de5922bc39318d15e28c69ffe38e7ff3

Download Submit
memory/1724-0-0x000000013FFE0000-0x0000000140527000-memory.dmp

Filesize
5.3MB

Download
memory/1724-1-0x000000013FFE0000-0x0000000140527000-memory.dmp

Filesize
5.3MB

Download
memory/1724-41-0x000000013FFE0000-0x0000000140527000-memory.dmp

Filesize
5.3MB

Download
memory/2536-8-0x000007FEF5E0E000-0x000007FEF5E0F000-memory.dmp

Filesize
4KB

Download
memory/2536-9-0x000007FEF5B50000-0x000007FEF64ED000-memory.dmp

Filesize
9.6MB

Download
memory/2536-11-0x0000000002690000-0x0000000002698000-memory.dmp

Filesize
32KB

Download
memory/2536-10-0x000000001B470000-0x000000001B752000-memory.dmp

Filesize
2.9MB

Download
memory/2536-12-0x000007FEF5B50000-0x000007FEF64ED000-memory.dmp

Filesize
9.6MB

Download
memory/2536-13-0x000007FEF5B50000-0x000007FEF64ED000-memory.dmp

Filesize
9.6MB

Download
memory/2536-14-0x000007FEF5B50000-0x000007FEF64ED000-memory.dmp

Filesize
9.6MB

Download