arkei | 45930aced8c185ad02fafc0f7299d48a44d14331fdc2cdf599bd3aa92faf82f1

Analysis

max time kernel
120s
max time network
125s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
26-12-2023 04:36

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General

Target

54a5f99822a066788b005a9eabe2dea0.exe
Size

1.5MB
MD5

54a5f99822a066788b005a9eabe2dea0
SHA1

9f13c7eda44d609427c6b37655bf7b3d32e5abeb
SHA256

45930aced8c185ad02fafc0f7299d48a44d14331fdc2cdf599bd3aa92faf82f1
SHA512

2bca4f48fb8f9843d6b597087c8f7526890cca284b152fda89f16eef491b88d3b7c3e2a0bd5d74dddf2498e4be995c04259a537c87269f8406307ebeca563fcc
SSDEEP

24576:UJd5dnADbdI0fRQMUYTY+uhqh98zeEQrtg6kgyD12S:CXdAHPRFjTYLS8zDug7gs7

Score

10^/10

arkei stealer

Malware Config

Extracted

Family

arkei

185.248.102.41/fixe%00/crate.php

Signatures

Arkei
Arkei is an infostealer written in C++.
stealer arkei

CustAttr .NET packer 1 IoCs

Detects CustAttr .NET packer in memory.

resource	yara_rule
behavioral1/memory/2164-4-0x00000000002D0000-0x00000000002E2000-memory.dmp	CustAttr

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2164 set thread context of 2764	2164	54a5f99822a066788b005a9eabe2dea0.exe	30

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2164	54a5f99822a066788b005a9eabe2dea0.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2164 wrote to memory of 2764	2164	54a5f99822a066788b005a9eabe2dea0.exe	30
PID 2164 wrote to memory of 2764	2164	54a5f99822a066788b005a9eabe2dea0.exe	30
PID 2164 wrote to memory of 2764	2164	54a5f99822a066788b005a9eabe2dea0.exe	30
PID 2164 wrote to memory of 2764	2164	54a5f99822a066788b005a9eabe2dea0.exe	30
PID 2164 wrote to memory of 2764	2164	54a5f99822a066788b005a9eabe2dea0.exe	30
PID 2164 wrote to memory of 2764	2164	54a5f99822a066788b005a9eabe2dea0.exe	30
PID 2164 wrote to memory of 2764	2164	54a5f99822a066788b005a9eabe2dea0.exe	30
PID 2164 wrote to memory of 2764	2164	54a5f99822a066788b005a9eabe2dea0.exe	30
PID 2164 wrote to memory of 2764	2164	54a5f99822a066788b005a9eabe2dea0.exe	30
PID 2164 wrote to memory of 2764	2164	54a5f99822a066788b005a9eabe2dea0.exe	30

C:\Users\Admin\AppData\Local\Temp\54a5f99822a066788b005a9eabe2dea0.exe
"C:\Users\Admin\AppData\Local\Temp\54a5f99822a066788b005a9eabe2dea0.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2164
- C:\Users\Admin\AppData\Local\Temp\54a5f99822a066788b005a9eabe2dea0.exe
  "C:\Users\Admin\AppData\Local\Temp\54a5f99822a066788b005a9eabe2dea0.exe"
  2⤵
  PID:2764

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2164-26-0x0000000074570000-0x0000000074C5E000-memory.dmp

Filesize
6.9MB

Download
memory/2164-1-0x0000000074570000-0x0000000074C5E000-memory.dmp

Filesize
6.9MB

Download
memory/2164-2-0x0000000004E00000-0x0000000004E40000-memory.dmp

Filesize
256KB

Download
memory/2164-3-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2164-4-0x00000000002D0000-0x00000000002E2000-memory.dmp

Filesize
72KB

Download
memory/2164-5-0x0000000074570000-0x0000000074C5E000-memory.dmp

Filesize
6.9MB

Download
memory/2164-6-0x0000000004E00000-0x0000000004E40000-memory.dmp

Filesize
256KB

Download
memory/2164-7-0x00000000050B0000-0x000000000511C000-memory.dmp

Filesize
432KB

Download
memory/2164-8-0x0000000005A50000-0x0000000005AD8000-memory.dmp

Filesize
544KB

Download
memory/2164-9-0x0000000000640000-0x000000000065E000-memory.dmp

Filesize
120KB

Download
memory/2164-0-0x0000000000E70000-0x0000000000FF0000-memory.dmp

Filesize
1.5MB

Download
memory/2764-10-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2764-14-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2764-16-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2764-18-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2764-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2764-22-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2764-24-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2764-25-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2764-12-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2764-27-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download