arkei | 4bf0b22a3a3a941e5e656212af53bdacd3cc42a104bfdf0a331f3819d82384d5

Analysis

max time kernel
146s
max time network
153s
platform
windows10_x64
resource
win10v20210408
submitted
26-09-2021 15:01

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General

Target

E442.exe
Size

292KB
MD5

4bb4625eefca3f9dfa7ceb06e2ed0acf
SHA1

17eef61253fb891fefe31852db649c328e718c1f
SHA256

4bf0b22a3a3a941e5e656212af53bdacd3cc42a104bfdf0a331f3819d82384d5
SHA512

d2893a37226007207c2ad04f2b40e0ec9aa91478fc65792c8f487435d018368b7f85ddd639212cf0b827f5e7c8cfffa1449962a803a18e3efc3c5cfd6c05792b

Score

10^/10

arkei spyware stealer

Malware Config

Signatures

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

Arkei Stealer Payload 1 IoCs

stealer

Processes:

resource	yara_rule
behavioral2/memory/708-115-0x0000000000400000-0x000000000044D000-memory.dmp	family_arkei

Downloads MZ/PE file
Loads dropped DLL 3 IoCs

Processes:

E442.exe

pid process

708 E442.exe
708 E442.exe
708 E442.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
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1488 708 WerFault.exe E442.exe

pid	process
708	E442.exe
708	E442.exe
708	E442.exe

pid	pid_target	process	target process
1488	708	WerFault.exe	E442.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

Processes:

WerFault.exe

pid	process
1488	WerFault.exe
1488	WerFault.exe
1488	WerFault.exe
1488	WerFault.exe
1488	WerFault.exe
1488	WerFault.exe
1488	WerFault.exe
1488	WerFault.exe
1488	WerFault.exe
1488	WerFault.exe
1488	WerFault.exe
1488	WerFault.exe
1488	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 1488 WerFault.exe
Token: SeBackupPrivilege 1488 WerFault.exe
Token: SeDebugPrivilege 1488 WerFault.exe

description	pid	process
Token: SeRestorePrivilege	1488	WerFault.exe
Token: SeBackupPrivilege	1488	WerFault.exe
Token: SeDebugPrivilege	1488	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\E442.exe
"C:\Users\Admin\AppData\Local\Temp\E442.exe"
1⤵
- Loads dropped DLL
PID:708

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 708 -s 1284
2⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1488

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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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

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memory/708-114-0x00000000021A0000-0x00000000021CD000-memory.dmp

Filesize
180KB

Download
memory/708-115-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download