arkei | 75c6768b31d4102a990350bd2edf55dc5616217bd26cfb3d8b0395c59cdfa1b5

General

Target

Anwuqahpedbnnlsgekmacy.exe
Size

576KB
MD5

6033fc2cf6e73f5ca5cf76206d4f2232
SHA1

a01fae21dfd9319f332c3cb717f8a8467514e8ce
SHA256

eaa5fb40a306c308eead3848fe6b4c16c7b271ddc63a89cc876b54248f8b1d08
SHA512

795df2b76dd23c09e5e90d1b5f2f4b88d1be8b44eb072001fb1bdfca210a6106a38cdafdc4df4e429f7acbbf5c8be3fe093e906280571acbf4458c9c6563233a

Score

10^/10

arkei default spyware stealer suricata

Malware Config

Extracted

Family

arkei

Botnet

Default

Signatures

Arkei
Arkei is an infostealer written in C++.
stealer arkei
suricata: ET MALWARE Base64 Encoded Stealer Config from Server - APPDATA or USERPROFILE Environment Variable M4
suricata: ET MALWARE Base64 Encoded Stealer Config from Server - APPDATA or USERPROFILE Environment Variable M4
suricata
suricata: ET MALWARE Win32/Vidar Variant/Mars Stealer CnC Exfil
suricata: ET MALWARE Win32/Vidar Variant/Mars Stealer CnC Exfil
suricata
Loads dropped DLL 2 IoCs

Processes:

InstallUtil.exe

pid process

2044 InstallUtil.exe
2044 InstallUtil.exe
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Suspicious use of SetThreadContext 1 IoCs

Processes:

Anwuqahpedbnnlsgekmacy.exe

description pid process target process

PID 1932 set thread context of 2044 1932 Anwuqahpedbnnlsgekmacy.exe InstallUtil.exe

pid	process
2044	InstallUtil.exe
2044	InstallUtil.exe

description	pid	process	target process
PID 1932 set thread context of 2044	1932	Anwuqahpedbnnlsgekmacy.exe	InstallUtil.exe

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

InstallUtil.exe

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

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1500 timeout.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

Anwuqahpedbnnlsgekmacy.exe

pid process

1932 Anwuqahpedbnnlsgekmacy.exe

pid	process
1500	timeout.exe

pid	process
1932	Anwuqahpedbnnlsgekmacy.exe

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

Anwuqahpedbnnlsgekmacy.exeInstallUtil.execmd.exe

description	pid	process	target process
PID 1932 wrote to memory of 2044	1932	Anwuqahpedbnnlsgekmacy.exe	InstallUtil.exe
PID 1932 wrote to memory of 2044	1932	Anwuqahpedbnnlsgekmacy.exe	InstallUtil.exe
PID 1932 wrote to memory of 2044	1932	Anwuqahpedbnnlsgekmacy.exe	InstallUtil.exe
PID 1932 wrote to memory of 2044	1932	Anwuqahpedbnnlsgekmacy.exe	InstallUtil.exe
PID 1932 wrote to memory of 2044	1932	Anwuqahpedbnnlsgekmacy.exe	InstallUtil.exe
PID 1932 wrote to memory of 2044	1932	Anwuqahpedbnnlsgekmacy.exe	InstallUtil.exe
PID 1932 wrote to memory of 2044	1932	Anwuqahpedbnnlsgekmacy.exe	InstallUtil.exe
PID 1932 wrote to memory of 2044	1932	Anwuqahpedbnnlsgekmacy.exe	InstallUtil.exe
PID 1932 wrote to memory of 2044	1932	Anwuqahpedbnnlsgekmacy.exe	InstallUtil.exe
PID 1932 wrote to memory of 2044	1932	Anwuqahpedbnnlsgekmacy.exe	InstallUtil.exe
PID 1932 wrote to memory of 2044	1932	Anwuqahpedbnnlsgekmacy.exe	InstallUtil.exe
PID 1932 wrote to memory of 2044	1932	Anwuqahpedbnnlsgekmacy.exe	InstallUtil.exe
PID 1932 wrote to memory of 2044	1932	Anwuqahpedbnnlsgekmacy.exe	InstallUtil.exe
PID 1932 wrote to memory of 2044	1932	Anwuqahpedbnnlsgekmacy.exe	InstallUtil.exe
PID 2044 wrote to memory of 1900	2044	InstallUtil.exe	cmd.exe
PID 2044 wrote to memory of 1900	2044	InstallUtil.exe	cmd.exe
PID 2044 wrote to memory of 1900	2044	InstallUtil.exe	cmd.exe
PID 2044 wrote to memory of 1900	2044	InstallUtil.exe	cmd.exe
PID 1900 wrote to memory of 1500	1900	cmd.exe	timeout.exe
PID 1900 wrote to memory of 1500	1900	cmd.exe	timeout.exe
PID 1900 wrote to memory of 1500	1900	cmd.exe	timeout.exe
PID 1900 wrote to memory of 1500	1900	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\Anwuqahpedbnnlsgekmacy.exe
"C:\Users\Admin\AppData\Local\Temp\Anwuqahpedbnnlsgekmacy.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1932

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
2⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:2044

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe" & exit
3⤵
- Suspicious use of WriteProcessMemory
PID:1900

C:\Windows\SysWOW64\timeout.exe
timeout /t 5
4⤵
- Delays execution with timeout.exe
PID:1500

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

\ProgramData\mozglue.dll
Filesize
133KB

MD5
8f73c08a9660691143661bf7332c3c27

SHA1
37fa65dd737c50fda710fdbde89e51374d0c204a

SHA256
3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

SHA512
0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

Download Submit
\ProgramData\nss3.dll
Filesize
1.2MB

MD5
bfac4e3c5908856ba17d41edcd455a51

SHA1
8eec7e888767aa9e4cca8ff246eb2aacb9170428

SHA256
e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

SHA512
2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

Download Submit
memory/1500-95-0x0000000000000000-mapping.dmp

Download
memory/1900-93-0x0000000000000000-mapping.dmp

Download
memory/1932-55-0x0000000004820000-0x00000000048F4000-memory.dmp

Filesize
848KB

Download
memory/1932-56-0x0000000000BD0000-0x0000000000C1C000-memory.dmp

Filesize
304KB

Download
memory/1932-54-0x0000000001380000-0x0000000001416000-memory.dmp

Filesize
600KB

Download
memory/2044-60-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2044-65-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2044-66-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2044-67-0x000000000043C0B2-mapping.dmp

Download
memory/2044-69-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2044-70-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2044-71-0x00000000757C1000-0x00000000757C3000-memory.dmp

Filesize
8KB

Download
memory/2044-72-0x0000000060900000-0x0000000060992000-memory.dmp

Filesize
584KB

Download
memory/2044-63-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2044-62-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2044-58-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2044-94-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2044-57-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download

Analysis

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