arkei | df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731

General

Target

df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe
Size

100KB
MD5

c7a310982da68b10360854f9cd78e718
SHA1

60140c28e0b7db797a771c2dee081fa3812246db
SHA256

df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731
SHA512

6747fa3f7637922eeaa0feeb25d430dc6ab66fd9f3d22e7e5fd16bad9b75528a8174c34a8baf681950b64e8cdaa6a14e37633592e843c363e75468622ebd2ec3

Score

10^/10

arkei default 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

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe

Loads dropped DLL 2 IoCs

pid	Process
1660	MSBuild.exe
1660	MSBuild.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1340 set thread context of 1660	1340	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	100

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1536	1660	WerFault.exe	100

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1340	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe
1340	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe
1340	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe
1340	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe
1340	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe
1340	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1340	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1340 wrote to memory of 3416	1340	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	99
PID 1340 wrote to memory of 3416	1340	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	99
PID 1340 wrote to memory of 3416	1340	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	99
PID 1340 wrote to memory of 1660	1340	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	100
PID 1340 wrote to memory of 1660	1340	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	100
PID 1340 wrote to memory of 1660	1340	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	100
PID 1340 wrote to memory of 1660	1340	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	100
PID 1340 wrote to memory of 1660	1340	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	100
PID 1340 wrote to memory of 1660	1340	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	100
PID 1340 wrote to memory of 1660	1340	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	100
PID 1340 wrote to memory of 1660	1340	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	100
PID 1340 wrote to memory of 1660	1340	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	100
PID 1340 wrote to memory of 1660	1340	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	100

C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe
"C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1340
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  2⤵
  PID:3416
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  2⤵
  - Loads dropped DLL
  PID:1660
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1660 -s 908
    3⤵
    - Program crash
    PID:1536

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1660 -ip 1660
1⤵
PID:3964

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\mozglue.dll

Filesize
133KB

MD5
8f73c08a9660691143661bf7332c3c27

SHA1
37fa65dd737c50fda710fdbde89e51374d0c204a

SHA256
3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

SHA512
0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

Download Submit
C:\ProgramData\nss3.dll

Filesize
1.2MB

MD5
bfac4e3c5908856ba17d41edcd455a51

SHA1
8eec7e888767aa9e4cca8ff246eb2aacb9170428

SHA256
e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

SHA512
2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

Download Submit
memory/1340-130-0x0000000000EE0000-0x0000000000EFE000-memory.dmp

Filesize
120KB

Download
memory/1340-131-0x0000000005F00000-0x00000000064A4000-memory.dmp

Filesize
5.6MB

Download
memory/1340-132-0x0000000005890000-0x0000000005922000-memory.dmp

Filesize
584KB

Download
memory/1340-133-0x0000000005950000-0x000000000595A000-memory.dmp

Filesize
40KB

Download
memory/1660-136-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1660-138-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1660-139-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1660-140-0x0000000060900000-0x0000000060992000-memory.dmp

Filesize
584KB

Download

Analysis

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