arkei | ff0fabc2ac5a1d0d525ad4055e4dd007a6854f622ab8b7864cfbd4cccd0c1a57

General

Target

ff0fabc2ac5a1d0d525ad4055e4dd007a6854f622ab8b7864cfbd4cccd0c1a57.exe
Size

331KB
MD5

fa018fc109f3a207839382261b70b62c
SHA1

a7b5708a70d5802b185d0979d5081c5d1e3d9304
SHA256

ff0fabc2ac5a1d0d525ad4055e4dd007a6854f622ab8b7864cfbd4cccd0c1a57
SHA512

93613792253c824af65efa34e2b2e7c53fe27f55e2d365317bf6f742949aed87f422f1d527e272d8fb362f49a9f3a5dc1ec517d6a13cb03bfdd37e96a0b2433b

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 3120 created 3844 3120 WerFault.exe ff0fabc2ac5a1d0d525ad4055e4dd007a6854f622ab8b7864cfbd4cccd0c1a57.exe

description	pid	process	target process
PID 3120 created 3844	3120	WerFault.exe	ff0fabc2ac5a1d0d525ad4055e4dd007a6854f622ab8b7864cfbd4cccd0c1a57.exe

Arkei Stealer Payload 2 IoCs

stealer

Processes:

resource	yara_rule
behavioral1/memory/3844-132-0x0000000000770000-0x000000000078C000-memory.dmp	family_arkei
behavioral1/memory/3844-133-0x0000000000400000-0x00000000005DA000-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:

ff0fabc2ac5a1d0d525ad4055e4dd007a6854f622ab8b7864cfbd4cccd0c1a57.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	ff0fabc2ac5a1d0d525ad4055e4dd007a6854f622ab8b7864cfbd4cccd0c1a57.exe

Loads dropped DLL 3 IoCs

Processes:

ff0fabc2ac5a1d0d525ad4055e4dd007a6854f622ab8b7864cfbd4cccd0c1a57.exe

pid	process
3844	ff0fabc2ac5a1d0d525ad4055e4dd007a6854f622ab8b7864cfbd4cccd0c1a57.exe
3844	ff0fabc2ac5a1d0d525ad4055e4dd007a6854f622ab8b7864cfbd4cccd0c1a57.exe
3844	ff0fabc2ac5a1d0d525ad4055e4dd007a6854f622ab8b7864cfbd4cccd0c1a57.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

216 3844 WerFault.exe ff0fabc2ac5a1d0d525ad4055e4dd007a6854f622ab8b7864cfbd4cccd0c1a57.exe

pid	pid_target	process	target process
216	3844	WerFault.exe	ff0fabc2ac5a1d0d525ad4055e4dd007a6854f622ab8b7864cfbd4cccd0c1a57.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:

MusNotification.exeff0fabc2ac5a1d0d525ad4055e4dd007a6854f622ab8b7864cfbd4cccd0c1a57.exeWerFault.exe

description	ioc	process
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	ff0fabc2ac5a1d0d525ad4055e4dd007a6854f622ab8b7864cfbd4cccd0c1a57.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	ff0fabc2ac5a1d0d525ad4055e4dd007a6854f622ab8b7864cfbd4cccd0c1a57.exe
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

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

2948 timeout.exe

pid	process
2948	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

216 WerFault.exe
216 WerFault.exe

pid	process
216	WerFault.exe
216	WerFault.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

MusNotification.exeWerFault.exe

description	pid	process
Token: SeShutdownPrivilege	2744	MusNotification.exe
Token: SeCreatePagefilePrivilege	2744	MusNotification.exe
Token: SeRestorePrivilege	216	WerFault.exe
Token: SeBackupPrivilege	216	WerFault.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

ff0fabc2ac5a1d0d525ad4055e4dd007a6854f622ab8b7864cfbd4cccd0c1a57.execmd.exeWerFault.exe

description	pid	process	target process
PID 3844 wrote to memory of 3676	3844	ff0fabc2ac5a1d0d525ad4055e4dd007a6854f622ab8b7864cfbd4cccd0c1a57.exe	cmd.exe
PID 3844 wrote to memory of 3676	3844	ff0fabc2ac5a1d0d525ad4055e4dd007a6854f622ab8b7864cfbd4cccd0c1a57.exe	cmd.exe
PID 3844 wrote to memory of 3676	3844	ff0fabc2ac5a1d0d525ad4055e4dd007a6854f622ab8b7864cfbd4cccd0c1a57.exe	cmd.exe
PID 3676 wrote to memory of 2948	3676	cmd.exe	timeout.exe
PID 3676 wrote to memory of 2948	3676	cmd.exe	timeout.exe
PID 3676 wrote to memory of 2948	3676	cmd.exe	timeout.exe
PID 3120 wrote to memory of 3844	3120	WerFault.exe	ff0fabc2ac5a1d0d525ad4055e4dd007a6854f622ab8b7864cfbd4cccd0c1a57.exe
PID 3120 wrote to memory of 3844	3120	WerFault.exe	ff0fabc2ac5a1d0d525ad4055e4dd007a6854f622ab8b7864cfbd4cccd0c1a57.exe

C:\Users\Admin\AppData\Local\Temp\ff0fabc2ac5a1d0d525ad4055e4dd007a6854f622ab8b7864cfbd4cccd0c1a57.exe
"C:\Users\Admin\AppData\Local\Temp\ff0fabc2ac5a1d0d525ad4055e4dd007a6854f622ab8b7864cfbd4cccd0c1a57.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:3844
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\ff0fabc2ac5a1d0d525ad4055e4dd007a6854f622ab8b7864cfbd4cccd0c1a57.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3676
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 5
    3⤵
    - Delays execution with timeout.exe
    PID:2948
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3844 -s 1572
  2⤵
  - Program crash
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:216

C:\Windows\system32\MusNotification.exe
C:\Windows\system32\MusNotification.exe
1⤵
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
PID:2744

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3844 -ip 3844
1⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Suspicious use of WriteProcessMemory
PID:3120

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/2948-138-0x0000000000000000-mapping.dmp

Download
memory/3676-137-0x0000000000000000-mapping.dmp

Download
memory/3844-131-0x00000000007A8000-0x00000000007BA000-memory.dmp

Filesize
72KB

Download
memory/3844-132-0x0000000000770000-0x000000000078C000-memory.dmp

Filesize
112KB

Download
memory/3844-133-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads