arkei | 1a96d546cfd4c52719b0b3c36932158c9dd9ecf56e5484cf422b319afceb1744

General

Target

1a96d546cfd4c52719b0b3c36932158c9dd9ecf56e5484cf422b319afceb1744.exe
Size

308KB
MD5

6bbdde86be5530a5cd85916dcb7de196
SHA1

975975fb6fab965d1adfef8067518f32f4861008
SHA256

1a96d546cfd4c52719b0b3c36932158c9dd9ecf56e5484cf422b319afceb1744
SHA512

a2815ecfb53a2f2aee0045720796368ae9d6331192ba53c25fe411b382cda31b07eab24af4de4c30d8b1faa927cee080c3bcf638ddf7fa77a7253dfc30145588

Score

10^/10

arkei homesteadr discovery spyware stealer

Malware Config

Extracted

Family

arkei

Botnet

homesteadr

C2

http://homesteadr.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 3624 created 3672 3624 WerFault.exe 1a96d546cfd4c52719b0b3c36932158c9dd9ecf56e5484cf422b319afceb1744.exe

description	pid	process	target process
PID 3624 created 3672	3624	WerFault.exe	1a96d546cfd4c52719b0b3c36932158c9dd9ecf56e5484cf422b319afceb1744.exe

Arkei Stealer Payload 2 IoCs

stealer

Processes:

resource	yara_rule
behavioral1/memory/3672-131-0x0000000000680000-0x000000000069C000-memory.dmp	family_arkei
behavioral1/memory/3672-132-0x0000000000400000-0x00000000004E2000-memory.dmp	family_arkei

Downloads MZ/PE file

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

1a96d546cfd4c52719b0b3c36932158c9dd9ecf56e5484cf422b319afceb1744.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	1a96d546cfd4c52719b0b3c36932158c9dd9ecf56e5484cf422b319afceb1744.exe

Loads dropped DLL 3 IoCs

Processes:

1a96d546cfd4c52719b0b3c36932158c9dd9ecf56e5484cf422b319afceb1744.exe

pid	process
3672	1a96d546cfd4c52719b0b3c36932158c9dd9ecf56e5484cf422b319afceb1744.exe
3672	1a96d546cfd4c52719b0b3c36932158c9dd9ecf56e5484cf422b319afceb1744.exe
3672	1a96d546cfd4c52719b0b3c36932158c9dd9ecf56e5484cf422b319afceb1744.exe

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

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2912 3672 WerFault.exe 1a96d546cfd4c52719b0b3c36932158c9dd9ecf56e5484cf422b319afceb1744.exe

pid	pid_target	process	target process
2912	3672	WerFault.exe	1a96d546cfd4c52719b0b3c36932158c9dd9ecf56e5484cf422b319afceb1744.exe

Checks processor information in registry 2 TTPs 7 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

WerFault.exeMusNotification.exe1a96d546cfd4c52719b0b3c36932158c9dd9ecf56e5484cf422b319afceb1744.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WerFault.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WerFault.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WerFault.exe
Key opened	\Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0	MusNotification.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	MusNotification.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	1a96d546cfd4c52719b0b3c36932158c9dd9ecf56e5484cf422b319afceb1744.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	1a96d546cfd4c52719b0b3c36932158c9dd9ecf56e5484cf422b319afceb1744.exe

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

3424 timeout.exe

pid	process
3424	timeout.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

WerFault.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WerFault.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WerFault.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

WerFault.exe

pid process

2912 WerFault.exe
2912 WerFault.exe

pid	process
2912	WerFault.exe
2912	WerFault.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

MusNotification.exeWerFault.exe

description	pid	process
Token: SeShutdownPrivilege	2656	MusNotification.exe
Token: SeCreatePagefilePrivilege	2656	MusNotification.exe
Token: SeRestorePrivilege	2912	WerFault.exe
Token: SeBackupPrivilege	2912	WerFault.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

1a96d546cfd4c52719b0b3c36932158c9dd9ecf56e5484cf422b319afceb1744.execmd.exeWerFault.exe

description	pid	process	target process
PID 3672 wrote to memory of 1844	3672	1a96d546cfd4c52719b0b3c36932158c9dd9ecf56e5484cf422b319afceb1744.exe	cmd.exe
PID 3672 wrote to memory of 1844	3672	1a96d546cfd4c52719b0b3c36932158c9dd9ecf56e5484cf422b319afceb1744.exe	cmd.exe
PID 3672 wrote to memory of 1844	3672	1a96d546cfd4c52719b0b3c36932158c9dd9ecf56e5484cf422b319afceb1744.exe	cmd.exe
PID 1844 wrote to memory of 3424	1844	cmd.exe	timeout.exe
PID 1844 wrote to memory of 3424	1844	cmd.exe	timeout.exe
PID 1844 wrote to memory of 3424	1844	cmd.exe	timeout.exe
PID 3624 wrote to memory of 3672	3624	WerFault.exe	1a96d546cfd4c52719b0b3c36932158c9dd9ecf56e5484cf422b319afceb1744.exe
PID 3624 wrote to memory of 3672	3624	WerFault.exe	1a96d546cfd4c52719b0b3c36932158c9dd9ecf56e5484cf422b319afceb1744.exe

C:\Users\Admin\AppData\Local\Temp\1a96d546cfd4c52719b0b3c36932158c9dd9ecf56e5484cf422b319afceb1744.exe
"C:\Users\Admin\AppData\Local\Temp\1a96d546cfd4c52719b0b3c36932158c9dd9ecf56e5484cf422b319afceb1744.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:3672
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\1a96d546cfd4c52719b0b3c36932158c9dd9ecf56e5484cf422b319afceb1744.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1844
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 5
    3⤵
    - Delays execution with timeout.exe
    PID:3424
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3672 -s 760
  2⤵
  - Program crash
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2912

C:\Windows\system32\MusNotification.exe
C:\Windows\system32\MusNotification.exe
1⤵
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
PID:2656

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3672 -ip 3672
1⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Suspicious use of WriteProcessMemory
PID:3624

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

Query Registry

4

T1012

System Information Discovery

4

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\mozglue.dll

MD5
8f73c08a9660691143661bf7332c3c27

SHA1
37fa65dd737c50fda710fdbde89e51374d0c204a

SHA256
3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

SHA512
0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

Download Submit
C:\ProgramData\nss3.dll

MD5
bfac4e3c5908856ba17d41edcd455a51

SHA1
8eec7e888767aa9e4cca8ff246eb2aacb9170428

SHA256
e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

SHA512
2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

Download Submit
C:\ProgramData\sqlite3.dll

MD5
e477a96c8f2b18d6b5c27bde49c990bf

SHA1
e980c9bf41330d1e5bd04556db4646a0210f7409

SHA256
16574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660

SHA512
335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c

Download Submit
memory/1844-136-0x0000000000000000-mapping.dmp

Download
memory/3424-137-0x0000000000000000-mapping.dmp

Download
memory/3672-130-0x00000000006DE000-0x00000000006EF000-memory.dmp

Filesize
68KB

Download
memory/3672-131-0x0000000000680000-0x000000000069C000-memory.dmp

Filesize
112KB

Download
memory/3672-132-0x0000000000400000-0x00000000004E2000-memory.dmp

Filesize
904KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads