arkei | a9dea10c6d4d205faab1ac8db69384e9c3dc91fd5a718266957e4e164f76cd4a

Resubmissions

14-10-2021 15:13

211014-slznesafgr 10

13-10-2021 11:15

211013-ncl9hsdggp 10

Analysis

max time kernel
124s
max time network
127s
platform
windows10_x64
resource
win10-en-20210920
submitted
14-10-2021 15:13

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General

Target

a9dea10c6d4d205faab1ac8db69384e9c3dc91fd5a718266957e4e164f76cd4a.bin.exe
Size

311KB
MD5

0050729426253655c88625a8ad93d7a2
SHA1

a8ea376bc26eba3ff32e72cb2bf43cccfa1c87d7
SHA256

a9dea10c6d4d205faab1ac8db69384e9c3dc91fd5a718266957e4e164f76cd4a
SHA512

1947c78aba1933c3da2eed125d760bf7c4b3bf75a113139a22db0d2f1e1e3e8b4640c0330b5220712275884567daf9548467a96747fb550fc8cb24dfc989d37c

Score

10^/10

arkei default spyware stealer

Malware Config

Extracted

Family

arkei

Botnet

Default

http://game2030.link/ggate.php

Signatures

Arkei
Arkei is an infostealer written in C++.
stealer arkei
Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs

Processes:

WerFault.exe

description pid process target process

PID 4604 created 3644 4604 WerFault.exe a9dea10c6d4d205faab1ac8db69384e9c3dc91fd5a718266957e4e164f76cd4a.bin.exe

description	pid	process	target process
PID 4604 created 3644	4604	WerFault.exe	a9dea10c6d4d205faab1ac8db69384e9c3dc91fd5a718266957e4e164f76cd4a.bin.exe

Arkei Stealer Payload 1 IoCs

stealer

Processes:

resource	yara_rule
behavioral2/memory/3644-117-0x0000000000400000-0x00000000016C0000-memory.dmp	family_arkei

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
T1081
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4604 3644 WerFault.exe a9dea10c6d4d205faab1ac8db69384e9c3dc91fd5a718266957e4e164f76cd4a.bin.exe

pid	pid_target	process	target process
4604	3644	WerFault.exe	a9dea10c6d4d205faab1ac8db69384e9c3dc91fd5a718266957e4e164f76cd4a.bin.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

WerFault.exe

pid	process
4604	WerFault.exe
4604	WerFault.exe
4604	WerFault.exe
4604	WerFault.exe
4604	WerFault.exe
4604	WerFault.exe
4604	WerFault.exe
4604	WerFault.exe
4604	WerFault.exe
4604	WerFault.exe
4604	WerFault.exe
4604	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 4604 WerFault.exe
Token: SeBackupPrivilege 4604 WerFault.exe
Token: SeDebugPrivilege 4604 WerFault.exe

description	pid	process
Token: SeRestorePrivilege	4604	WerFault.exe
Token: SeBackupPrivilege	4604	WerFault.exe
Token: SeDebugPrivilege	4604	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\a9dea10c6d4d205faab1ac8db69384e9c3dc91fd5a718266957e4e164f76cd4a.bin.exe
"C:\Users\Admin\AppData\Local\Temp\a9dea10c6d4d205faab1ac8db69384e9c3dc91fd5a718266957e4e164f76cd4a.bin.exe"
1⤵
PID:3644
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3644 -s 1204
  2⤵
  - Suspicious use of NtCreateProcessExOtherParentProcess
  - Program crash
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4604

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3644-115-0x00000000018B6000-0x00000000018C6000-memory.dmp

Filesize
64KB

Download
memory/3644-116-0x00000000016C0000-0x000000000180A000-memory.dmp

Filesize
1.3MB

Download
memory/3644-117-0x0000000000400000-0x00000000016C0000-memory.dmp

Filesize
18.8MB

Download