arkei | 977a8d56d7bbc22e780e85bea06fa4be13c8f9be01515665863cb431fb2e8daa

General

Target

Microsoft.ApplicationInsights.PersistenceChannel.dll.exe
Size

458KB
MD5

14e351015c5d632f888dbcac03871fae
SHA1

b5471c5eea356ce87ac5c2df8bbd9bc72cf84da9
SHA256

977a8d56d7bbc22e780e85bea06fa4be13c8f9be01515665863cb431fb2e8daa
SHA512

f7ac50b3cc68404ddc14579c9e12239a292afc4e034232274f8987579fbf3ea59a64403e122b946cceec9a383633cb3b7f3eedade819125a017de7c6a48a8947

Score

10^/10

arkei spyware stealer

Malware Config

Signatures

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

Arkei Stealer Payload 3 IoCs

stealer

Processes:

resource	yara_rule
behavioral2/memory/3628-125-0x00000000004057F0-mapping.dmp	family_arkei
behavioral2/memory/3628-124-0x0000000000400000-0x000000000041D000-memory.dmp	family_arkei
behavioral2/memory/3628-127-0x0000000000400000-0x000000000041D000-memory.dmp	family_arkei

Downloads MZ/PE file

Loads dropped DLL 3 IoCs

Processes:

Microsoft.ApplicationInsights.PersistenceChannel.dll.exe

pid	process
3628	Microsoft.ApplicationInsights.PersistenceChannel.dll.exe
3628	Microsoft.ApplicationInsights.PersistenceChannel.dll.exe
3628	Microsoft.ApplicationInsights.PersistenceChannel.dll.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

Suspicious use of SetThreadContext 1 IoCs

Processes:

Microsoft.ApplicationInsights.PersistenceChannel.dll.exe

description	pid	process	target process
PID 3388 set thread context of 3628	3388	Microsoft.ApplicationInsights.PersistenceChannel.dll.exe	Microsoft.ApplicationInsights.PersistenceChannel.dll.exe

Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid	pid_target	process	target process
3584	3388	WerFault.exe	Microsoft.ApplicationInsights.PersistenceChannel.dll.exe
3864	3628	WerFault.exe	Microsoft.ApplicationInsights.PersistenceChannel.dll.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

Processes:

WerFault.exeWerFault.exe

pid	process
3584	WerFault.exe
3584	WerFault.exe
3584	WerFault.exe
3584	WerFault.exe
3584	WerFault.exe
3584	WerFault.exe
3584	WerFault.exe
3584	WerFault.exe
3584	WerFault.exe
3584	WerFault.exe
3584	WerFault.exe
3584	WerFault.exe
3584	WerFault.exe
3584	WerFault.exe
3584	WerFault.exe
3864	WerFault.exe
3864	WerFault.exe
3864	WerFault.exe
3864	WerFault.exe
3864	WerFault.exe
3864	WerFault.exe
3864	WerFault.exe
3864	WerFault.exe
3864	WerFault.exe
3864	WerFault.exe
3864	WerFault.exe
3864	WerFault.exe
3864	WerFault.exe
3864	WerFault.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

Microsoft.ApplicationInsights.PersistenceChannel.dll.exeWerFault.exeWerFault.exe

description	pid	process
Token: SeDebugPrivilege	3388	Microsoft.ApplicationInsights.PersistenceChannel.dll.exe
Token: SeRestorePrivilege	3584	WerFault.exe
Token: SeBackupPrivilege	3584	WerFault.exe
Token: SeDebugPrivilege	3584	WerFault.exe
Token: SeDebugPrivilege	3864	WerFault.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

Microsoft.ApplicationInsights.PersistenceChannel.dll.exe

description	pid	process	target process
PID 3388 wrote to memory of 3628	3388	Microsoft.ApplicationInsights.PersistenceChannel.dll.exe	Microsoft.ApplicationInsights.PersistenceChannel.dll.exe
PID 3388 wrote to memory of 3628	3388	Microsoft.ApplicationInsights.PersistenceChannel.dll.exe	Microsoft.ApplicationInsights.PersistenceChannel.dll.exe
PID 3388 wrote to memory of 3628	3388	Microsoft.ApplicationInsights.PersistenceChannel.dll.exe	Microsoft.ApplicationInsights.PersistenceChannel.dll.exe
PID 3388 wrote to memory of 3628	3388	Microsoft.ApplicationInsights.PersistenceChannel.dll.exe	Microsoft.ApplicationInsights.PersistenceChannel.dll.exe
PID 3388 wrote to memory of 3628	3388	Microsoft.ApplicationInsights.PersistenceChannel.dll.exe	Microsoft.ApplicationInsights.PersistenceChannel.dll.exe
PID 3388 wrote to memory of 3628	3388	Microsoft.ApplicationInsights.PersistenceChannel.dll.exe	Microsoft.ApplicationInsights.PersistenceChannel.dll.exe
PID 3388 wrote to memory of 3628	3388	Microsoft.ApplicationInsights.PersistenceChannel.dll.exe	Microsoft.ApplicationInsights.PersistenceChannel.dll.exe
PID 3388 wrote to memory of 3628	3388	Microsoft.ApplicationInsights.PersistenceChannel.dll.exe	Microsoft.ApplicationInsights.PersistenceChannel.dll.exe
PID 3388 wrote to memory of 3628	3388	Microsoft.ApplicationInsights.PersistenceChannel.dll.exe	Microsoft.ApplicationInsights.PersistenceChannel.dll.exe
PID 3388 wrote to memory of 3628	3388	Microsoft.ApplicationInsights.PersistenceChannel.dll.exe	Microsoft.ApplicationInsights.PersistenceChannel.dll.exe

C:\Users\Admin\AppData\Local\Temp\Microsoft.ApplicationInsights.PersistenceChannel.dll.exe
"C:\Users\Admin\AppData\Local\Temp\Microsoft.ApplicationInsights.PersistenceChannel.dll.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3388

C:\Users\Admin\AppData\Local\Temp\Microsoft.ApplicationInsights.PersistenceChannel.dll.exe
"C:\Users\Admin\AppData\Local\Temp\Microsoft.ApplicationInsights.PersistenceChannel.dll.exe"
2⤵
- Loads dropped DLL
PID:3628

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3628 -s 1200
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3864

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3388 -s 1128
2⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3584

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

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Downloads

\ProgramData\mozglue.dll
MD5
8f73c08a9660691143661bf7332c3c27

SHA1
37fa65dd737c50fda710fdbde89e51374d0c204a

SHA256
3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

SHA512
0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

Download Submit
\ProgramData\nss3.dll
MD5
bfac4e3c5908856ba17d41edcd455a51

SHA1
8eec7e888767aa9e4cca8ff246eb2aacb9170428

SHA256
e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

SHA512
2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

Download Submit
\ProgramData\sqlite3.dll
MD5
e477a96c8f2b18d6b5c27bde49c990bf

SHA1
e980c9bf41330d1e5bd04556db4646a0210f7409

SHA256
16574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660

SHA512
335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c

Download Submit
memory/3388-123-0x0000000004DE0000-0x0000000004DF9000-memory.dmp

Filesize
100KB

Download
memory/3388-119-0x0000000004C80000-0x000000000517E000-memory.dmp

Filesize
5.0MB

Download
memory/3388-120-0x0000000004BF0000-0x0000000004BF1000-memory.dmp

Filesize
4KB

Download
memory/3388-121-0x0000000004E80000-0x0000000004E81000-memory.dmp

Filesize
4KB

Download
memory/3388-122-0x0000000004C30000-0x0000000004C31000-memory.dmp

Filesize
4KB

Download
memory/3388-115-0x00000000002E0000-0x00000000002E1000-memory.dmp

Filesize
4KB

Download
memory/3388-126-0x0000000004C50000-0x0000000004C53000-memory.dmp

Filesize
12KB

Download
memory/3388-118-0x0000000004C80000-0x0000000004C81000-memory.dmp

Filesize
4KB

Download
memory/3388-117-0x0000000005180000-0x0000000005181000-memory.dmp

Filesize
4KB

Download
memory/3388-116-0x0000000004B30000-0x0000000004B31000-memory.dmp

Filesize
4KB

Download
memory/3628-125-0x00000000004057F0-mapping.dmp

Download
memory/3628-124-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3628-127-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads