arkei | ad2c6c8d68058c316b1f3c343b59c0c14526f4a7c84ed771b2d90f590fc3c535

Analysis

max time kernel
147s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
16-03-2024 14:56

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

ce5706f1a1dd859a8233397c2490680b.exe
Size

416KB
MD5

ce5706f1a1dd859a8233397c2490680b
SHA1

9a3775d1c673313a4814abe25049efb03a3e674e
SHA256

ad2c6c8d68058c316b1f3c343b59c0c14526f4a7c84ed771b2d90f590fc3c535
SHA512

35b6aec7f2821baf073cc05d0e18173961757db0d458f7ed44979abbfbd040b8ecc6418e97f6bb23006fadd368191c34be0f1f5877a87b46f3c292523be00b7a
SSDEEP

6144:P0XIE3wQQBHn8nd2r1XGUtZXdRloUfk+S+r2I1Fyjbl66A93LnYDttxU7Uu6wB8B:P6Yn8nd2r1XXtCXtvldA93LYzxOd6L

Score

10^/10

arkei evasion stealer trojan

Malware Config

Extracted

Family

arkei

141.95.23.6/kESK2FZqwB.php

Signatures

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

Modifies Windows Defender Real-time Protection settings 3 TTPs 4 IoCs

evasion trojan

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify Tools

T1562.001

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	ce5706f1a1dd859a8233397c2490680b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	ce5706f1a1dd859a8233397c2490680b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	ce5706f1a1dd859a8233397c2490680b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	ce5706f1a1dd859a8233397c2490680b.exe

Turns off Windows Defender SpyNet reporting 2 TTPs
evasion

Disable or Modify Tools
T1562.001

Modify Registry
T1112

Windows security bypass 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths	ce5706f1a1dd859a8233397c2490680b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\ce5706f1a1dd859a8233397c2490680b.exe = "0"	ce5706f1a1dd859a8233397c2490680b.exe

Nirsoft 1 IoCs

resource	yara_rule
behavioral2/files/0x000200000002289b-15.dat	Nirsoft

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation	ce5706f1a1dd859a8233397c2490680b.exe
Key value queried	\REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation	AdvancedRun.exe

Executes dropped EXE 2 IoCs

pid	Process
1552	AdvancedRun.exe
1764	AdvancedRun.exe

Windows security modification 2 TTPs 10 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths	ce5706f1a1dd859a8233397c2490680b.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Real-Time Protection	ce5706f1a1dd859a8233397c2490680b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Spynet\SubmitSamplesConsent = "0"	ce5706f1a1dd859a8233397c2490680b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Spynet\SpyNetReporting = "0"	ce5706f1a1dd859a8233397c2490680b.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features	ce5706f1a1dd859a8233397c2490680b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	ce5706f1a1dd859a8233397c2490680b.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions	ce5706f1a1dd859a8233397c2490680b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\ce5706f1a1dd859a8233397c2490680b.exe = "0"	ce5706f1a1dd859a8233397c2490680b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	ce5706f1a1dd859a8233397c2490680b.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Spynet	ce5706f1a1dd859a8233397c2490680b.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3768 set thread context of 2632	3768	ce5706f1a1dd859a8233397c2490680b.exe	97

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
1552	AdvancedRun.exe
1552	AdvancedRun.exe
1552	AdvancedRun.exe
1552	AdvancedRun.exe
1764	AdvancedRun.exe
1764	AdvancedRun.exe
1764	AdvancedRun.exe
1764	AdvancedRun.exe
1728	powershell.exe
1728	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	1552	AdvancedRun.exe
Token: SeImpersonatePrivilege	1552	AdvancedRun.exe
Token: SeDebugPrivilege	1764	AdvancedRun.exe
Token: SeImpersonatePrivilege	1764	AdvancedRun.exe
Token: SeDebugPrivilege	3768	ce5706f1a1dd859a8233397c2490680b.exe
Token: SeDebugPrivilege	1728	powershell.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 3768 wrote to memory of 1552	3768	ce5706f1a1dd859a8233397c2490680b.exe	91
PID 3768 wrote to memory of 1552	3768	ce5706f1a1dd859a8233397c2490680b.exe	91
PID 3768 wrote to memory of 1552	3768	ce5706f1a1dd859a8233397c2490680b.exe	91
PID 1552 wrote to memory of 1764	1552	AdvancedRun.exe	93
PID 1552 wrote to memory of 1764	1552	AdvancedRun.exe	93
PID 1552 wrote to memory of 1764	1552	AdvancedRun.exe	93
PID 3768 wrote to memory of 1728	3768	ce5706f1a1dd859a8233397c2490680b.exe	95
PID 3768 wrote to memory of 1728	3768	ce5706f1a1dd859a8233397c2490680b.exe	95
PID 3768 wrote to memory of 1728	3768	ce5706f1a1dd859a8233397c2490680b.exe	95
PID 3768 wrote to memory of 2632	3768	ce5706f1a1dd859a8233397c2490680b.exe	97
PID 3768 wrote to memory of 2632	3768	ce5706f1a1dd859a8233397c2490680b.exe	97
PID 3768 wrote to memory of 2632	3768	ce5706f1a1dd859a8233397c2490680b.exe	97
PID 3768 wrote to memory of 2632	3768	ce5706f1a1dd859a8233397c2490680b.exe	97
PID 3768 wrote to memory of 2632	3768	ce5706f1a1dd859a8233397c2490680b.exe	97
PID 3768 wrote to memory of 2632	3768	ce5706f1a1dd859a8233397c2490680b.exe	97
PID 3768 wrote to memory of 2632	3768	ce5706f1a1dd859a8233397c2490680b.exe	97
PID 3768 wrote to memory of 2632	3768	ce5706f1a1dd859a8233397c2490680b.exe	97
PID 3768 wrote to memory of 2632	3768	ce5706f1a1dd859a8233397c2490680b.exe	97
PID 3768 wrote to memory of 2632	3768	ce5706f1a1dd859a8233397c2490680b.exe	97

C:\Users\Admin\AppData\Local\Temp\ce5706f1a1dd859a8233397c2490680b.exe
"C:\Users\Admin\AppData\Local\Temp\ce5706f1a1dd859a8233397c2490680b.exe"
1⤵
- Modifies Windows Defender Real-time Protection settings
- Windows security bypass
- Checks computer location settings
- Windows security modification
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3768
- C:\Users\Admin\AppData\Local\Temp\c9a7e1db-9850-44ae-b4b3-1d0bcd5ddfe3\AdvancedRun.exe
  "C:\Users\Admin\AppData\Local\Temp\c9a7e1db-9850-44ae-b4b3-1d0bcd5ddfe3\AdvancedRun.exe" /EXEFilename "C:\Users\Admin\AppData\Local\Temp\c9a7e1db-9850-44ae-b4b3-1d0bcd5ddfe3\test.bat" /WindowState ""0"" /PriorityClass ""32"" /CommandLine "" /StartDirectory "" /RunAs 8 /Run
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1552
- - C:\Users\Admin\AppData\Local\Temp\c9a7e1db-9850-44ae-b4b3-1d0bcd5ddfe3\AdvancedRun.exe
    "C:\Users\Admin\AppData\Local\Temp\c9a7e1db-9850-44ae-b4b3-1d0bcd5ddfe3\AdvancedRun.exe" /SpecialRun 4101d8 1552
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1764
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\ce5706f1a1dd859a8233397c2490680b.exe" -Force
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1728
- C:\Users\Admin\AppData\Local\Temp\ce5706f1a1dd859a8233397c2490680b.exe
  "C:\Users\Admin\AppData\Local\Temp\ce5706f1a1dd859a8233397c2490680b.exe"
  2⤵
  PID:2632

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3x44ryii.rrd.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\c9a7e1db-9850-44ae-b4b3-1d0bcd5ddfe3\AdvancedRun.exe

Filesize
88KB

MD5
17fc12902f4769af3a9271eb4e2dacce

SHA1
9a4a1581cc3971579574f837e110f3bd6d529dab

SHA256
29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

SHA512
036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

Download Submit
memory/1728-35-0x0000000004CB0000-0x0000000004CD2000-memory.dmp

Filesize
136KB

Download
memory/1728-65-0x0000000006370000-0x000000000638A000-memory.dmp

Filesize
104KB

Download
memory/1728-75-0x0000000074750000-0x0000000074F00000-memory.dmp

Filesize
7.7MB

Download
memory/1728-72-0x0000000007370000-0x0000000007378000-memory.dmp

Filesize
32KB

Download
memory/1728-71-0x0000000007380000-0x000000000739A000-memory.dmp

Filesize
104KB

Download
memory/1728-43-0x0000000005660000-0x00000000059B4000-memory.dmp

Filesize
3.3MB

Download
memory/1728-70-0x0000000007340000-0x0000000007354000-memory.dmp

Filesize
80KB

Download
memory/1728-39-0x0000000004F30000-0x0000000004F96000-memory.dmp

Filesize
408KB

Download
memory/1728-69-0x0000000007330000-0x000000000733E000-memory.dmp

Filesize
56KB

Download
memory/1728-68-0x00000000071B0000-0x00000000071C1000-memory.dmp

Filesize
68KB

Download
memory/1728-28-0x0000000074750000-0x0000000074F00000-memory.dmp

Filesize
7.7MB

Download
memory/1728-26-0x0000000002370000-0x00000000023A6000-memory.dmp

Filesize
216KB

Download
memory/1728-67-0x0000000007230000-0x00000000072C6000-memory.dmp

Filesize
600KB

Download
memory/1728-66-0x0000000007030000-0x000000000703A000-memory.dmp

Filesize
40KB

Download
memory/1728-64-0x0000000007670000-0x0000000007CEA000-memory.dmp

Filesize
6.5MB

Download
memory/1728-33-0x00000000049F0000-0x0000000004A00000-memory.dmp

Filesize
64KB

Download
memory/1728-30-0x00000000049F0000-0x0000000004A00000-memory.dmp

Filesize
64KB

Download
memory/1728-34-0x0000000005030000-0x0000000005658000-memory.dmp

Filesize
6.2MB

Download
memory/1728-63-0x0000000006F40000-0x0000000006FE3000-memory.dmp

Filesize
652KB

Download
memory/1728-36-0x0000000004D50000-0x0000000004DB6000-memory.dmp

Filesize
408KB

Download
memory/1728-62-0x0000000006250000-0x000000000626E000-memory.dmp

Filesize
120KB

Download
memory/1728-52-0x0000000071010000-0x000000007105C000-memory.dmp

Filesize
304KB

Download
memory/1728-51-0x0000000006270000-0x00000000062A2000-memory.dmp

Filesize
200KB

Download
memory/1728-48-0x0000000005D30000-0x0000000005D4E000-memory.dmp

Filesize
120KB

Download
memory/1728-49-0x0000000005DC0000-0x0000000005E0C000-memory.dmp

Filesize
304KB

Download
memory/1728-50-0x00000000049F0000-0x0000000004A00000-memory.dmp

Filesize
64KB

Download
memory/2632-32-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/2632-76-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/2632-24-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/2632-29-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/3768-3-0x00000000057B0000-0x0000000005842000-memory.dmp

Filesize
584KB

Download
memory/3768-7-0x0000000005A20000-0x0000000005A96000-memory.dmp

Filesize
472KB

Download
memory/3768-31-0x0000000074750000-0x0000000074F00000-memory.dmp

Filesize
7.7MB

Download
memory/3768-1-0x0000000074750000-0x0000000074F00000-memory.dmp

Filesize
7.7MB

Download
memory/3768-5-0x0000000005870000-0x000000000587A000-memory.dmp

Filesize
40KB

Download
memory/3768-2-0x0000000005C70000-0x0000000006214000-memory.dmp

Filesize
5.6MB

Download
memory/3768-8-0x0000000005880000-0x00000000058E8000-memory.dmp

Filesize
416KB

Download
memory/3768-6-0x0000000005AC0000-0x0000000005B5C000-memory.dmp

Filesize
624KB

Download
memory/3768-0-0x0000000000D60000-0x0000000000DCE000-memory.dmp

Filesize
440KB

Download
memory/3768-4-0x0000000005900000-0x0000000005910000-memory.dmp

Filesize
64KB

Download
memory/3768-9-0x0000000005B80000-0x0000000005B9E000-memory.dmp

Filesize
120KB

Download